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5 files changed, 3136 insertions, 0 deletions

diff --git a/packages/0x.js/src/artifacts/EtherToken.json b/packages/0x.js/src/artifacts/EtherToken.json
new file mode 100644
index 000000000..91b23bc94
--- /dev/null
+++ b/packages/0x.js/src/artifacts/EtherToken.json
@@ -0,0 +1,445 @@
+{
+  "contract_name": "EtherToken",
+  "abi": [
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "name",
+      "outputs": [
+        {
+          "name": "",
+          "type": "string"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "_spender",
+          "type": "address"
+        },
+        {
+          "name": "_value",
+          "type": "uint256"
+        }
+      ],
+      "name": "approve",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "totalSupply",
+      "outputs": [
+        {
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "_from",
+          "type": "address"
+        },
+        {
+          "name": "_to",
+          "type": "address"
+        },
+        {
+          "name": "_value",
+          "type": "uint256"
+        }
+      ],
+      "name": "transferFrom",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "amount",
+          "type": "uint256"
+        }
+      ],
+      "name": "withdraw",
+      "outputs": [],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "decimals",
+      "outputs": [
+        {
+          "name": "",
+          "type": "uint8"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "_owner",
+          "type": "address"
+        }
+      ],
+      "name": "balanceOf",
+      "outputs": [
+        {
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "symbol",
+      "outputs": [
+        {
+          "name": "",
+          "type": "string"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "_to",
+          "type": "address"
+        },
+        {
+          "name": "_value",
+          "type": "uint256"
+        }
+      ],
+      "name": "transfer",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [],
+      "name": "deposit",
+      "outputs": [],
+      "payable": true,
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "_owner",
+          "type": "address"
+        },
+        {
+          "name": "_spender",
+          "type": "address"
+        }
+      ],
+      "name": "allowance",
+      "outputs": [
+        {
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "payable": true,
+      "type": "fallback"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "name": "_from",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "name": "_to",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "name": "_value",
+          "type": "uint256"
+        }
+      ],
+      "name": "Transfer",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "name": "_owner",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "name": "_spender",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "name": "_value",
+          "type": "uint256"
+        }
+      ],
+      "name": "Approval",
+      "type": "event"
+    }
+  ],
+  "unlinked_binary": "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",
+  "networks": {
+    "1": {
+      "links": {},
+      "events": {
+        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "_from",
+              "type": "address"
+            },
+            {
+              "indexed": true,
+              "name": "_to",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "_value",
+              "type": "uint256"
+            }
+          ],
+          "name": "Transfer",
+          "type": "event"
+        },
+        "0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "_owner",
+              "type": "address"
+            },
+            {
+              "indexed": true,
+              "name": "_spender",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "_value",
+              "type": "uint256"
+            }
+          ],
+          "name": "Approval",
+          "type": "event"
+        }
+      },
+      "updated_at": 1502488087000,
+      "address": "0x2956356cd2a2bf3202f771f50d3d14a367b48070"
+    },
+    "3": {
+      "links": {},
+      "events": {
+        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "_from",
+              "type": "address"
+            },
+            {
+              "indexed": true,
+              "name": "_to",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "_value",
+              "type": "uint256"
+            }
+          ],
+          "name": "Transfer",
+          "type": "event"
+        },
+        "0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "_owner",
+              "type": "address"
+            },
+            {
+              "indexed": true,
+              "name": "_spender",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "_value",
+              "type": "uint256"
+            }
+          ],
+          "name": "Approval",
+          "type": "event"
+        }
+      },
+      "updated_at": 1506602007000,
+      "address": "0xc00fd9820cd2898cc4c054b7bf142de637ad129a"
+    },
+    "42": {
+      "links": {},
+      "events": {
+        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "_from",
+              "type": "address"
+            },
+            {
+              "indexed": true,
+              "name": "_to",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "_value",
+              "type": "uint256"
+            }
+          ],
+          "name": "Transfer",
+          "type": "event"
+        },
+        "0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "_owner",
+              "type": "address"
+            },
+            {
+              "indexed": true,
+              "name": "_spender",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "_value",
+              "type": "uint256"
+            }
+          ],
+          "name": "Approval",
+          "type": "event"
+        }
+      },
+      "updated_at": 1502391794392,
+      "address": "0x05d090b51c40b020eab3bfcb6a2dff130df22e9c"
+    },
+    "50": {
+      "links": {},
+      "events": {
+        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "_from",
+              "type": "address"
+            },
+            {
+              "indexed": true,
+              "name": "_to",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "_value",
+              "type": "uint256"
+            }
+          ],
+          "name": "Transfer",
+          "type": "event"
+        },
+        "0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "_owner",
+              "type": "address"
+            },
+            {
+              "indexed": true,
+              "name": "_spender",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "_value",
+              "type": "uint256"
+            }
+          ],
+          "name": "Approval",
+          "type": "event"
+        }
+      },
+      "updated_at": 1503318938233,
+      "address": "0x48bacb9266a570d521063ef5dd96e61686dbe788"
+    }
+  },
+  "schema_version": "0.0.5",
+  "updated_at": 1503318938233
+}
diff --git a/packages/0x.js/src/artifacts/Exchange.json b/packages/0x.js/src/artifacts/Exchange.json
new file mode 100644
index 000000000..734c8f9c7
--- /dev/null
+++ b/packages/0x.js/src/artifacts/Exchange.json
@@ -0,0 +1,1130 @@
+{
+  "contract_name": "Exchange",
+  "abi": [
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "numerator",
+          "type": "uint256"
+        },
+        {
+          "name": "denominator",
+          "type": "uint256"
+        },
+        {
+          "name": "target",
+          "type": "uint256"
+        }
+      ],
+      "name": "isRoundingError",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "",
+          "type": "bytes32"
+        }
+      ],
+      "name": "filled",
+      "outputs": [
+        {
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "",
+          "type": "bytes32"
+        }
+      ],
+      "name": "cancelled",
+      "outputs": [
+        {
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "orderAddresses",
+          "type": "address[5][]"
+        },
+        {
+          "name": "orderValues",
+          "type": "uint256[6][]"
+        },
+        {
+          "name": "fillTakerTokenAmount",
+          "type": "uint256"
+        },
+        {
+          "name": "shouldThrowOnInsufficientBalanceOrAllowance",
+          "type": "bool"
+        },
+        {
+          "name": "v",
+          "type": "uint8[]"
+        },
+        {
+          "name": "r",
+          "type": "bytes32[]"
+        },
+        {
+          "name": "s",
+          "type": "bytes32[]"
+        }
+      ],
+      "name": "fillOrdersUpTo",
+      "outputs": [
+        {
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "orderAddresses",
+          "type": "address[5]"
+        },
+        {
+          "name": "orderValues",
+          "type": "uint256[6]"
+        },
+        {
+          "name": "cancelTakerTokenAmount",
+          "type": "uint256"
+        }
+      ],
+      "name": "cancelOrder",
+      "outputs": [
+        {
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "ZRX_TOKEN_CONTRACT",
+      "outputs": [
+        {
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "orderAddresses",
+          "type": "address[5][]"
+        },
+        {
+          "name": "orderValues",
+          "type": "uint256[6][]"
+        },
+        {
+          "name": "fillTakerTokenAmounts",
+          "type": "uint256[]"
+        },
+        {
+          "name": "v",
+          "type": "uint8[]"
+        },
+        {
+          "name": "r",
+          "type": "bytes32[]"
+        },
+        {
+          "name": "s",
+          "type": "bytes32[]"
+        }
+      ],
+      "name": "batchFillOrKillOrders",
+      "outputs": [],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "orderAddresses",
+          "type": "address[5]"
+        },
+        {
+          "name": "orderValues",
+          "type": "uint256[6]"
+        },
+        {
+          "name": "fillTakerTokenAmount",
+          "type": "uint256"
+        },
+        {
+          "name": "v",
+          "type": "uint8"
+        },
+        {
+          "name": "r",
+          "type": "bytes32"
+        },
+        {
+          "name": "s",
+          "type": "bytes32"
+        }
+      ],
+      "name": "fillOrKillOrder",
+      "outputs": [],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "orderHash",
+          "type": "bytes32"
+        }
+      ],
+      "name": "getUnavailableTakerTokenAmount",
+      "outputs": [
+        {
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "signer",
+          "type": "address"
+        },
+        {
+          "name": "hash",
+          "type": "bytes32"
+        },
+        {
+          "name": "v",
+          "type": "uint8"
+        },
+        {
+          "name": "r",
+          "type": "bytes32"
+        },
+        {
+          "name": "s",
+          "type": "bytes32"
+        }
+      ],
+      "name": "isValidSignature",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "numerator",
+          "type": "uint256"
+        },
+        {
+          "name": "denominator",
+          "type": "uint256"
+        },
+        {
+          "name": "target",
+          "type": "uint256"
+        }
+      ],
+      "name": "getPartialAmount",
+      "outputs": [
+        {
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "TOKEN_TRANSFER_PROXY_CONTRACT",
+      "outputs": [
+        {
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "orderAddresses",
+          "type": "address[5][]"
+        },
+        {
+          "name": "orderValues",
+          "type": "uint256[6][]"
+        },
+        {
+          "name": "fillTakerTokenAmounts",
+          "type": "uint256[]"
+        },
+        {
+          "name": "shouldThrowOnInsufficientBalanceOrAllowance",
+          "type": "bool"
+        },
+        {
+          "name": "v",
+          "type": "uint8[]"
+        },
+        {
+          "name": "r",
+          "type": "bytes32[]"
+        },
+        {
+          "name": "s",
+          "type": "bytes32[]"
+        }
+      ],
+      "name": "batchFillOrders",
+      "outputs": [],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "orderAddresses",
+          "type": "address[5][]"
+        },
+        {
+          "name": "orderValues",
+          "type": "uint256[6][]"
+        },
+        {
+          "name": "cancelTakerTokenAmounts",
+          "type": "uint256[]"
+        }
+      ],
+      "name": "batchCancelOrders",
+      "outputs": [],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "orderAddresses",
+          "type": "address[5]"
+        },
+        {
+          "name": "orderValues",
+          "type": "uint256[6]"
+        },
+        {
+          "name": "fillTakerTokenAmount",
+          "type": "uint256"
+        },
+        {
+          "name": "shouldThrowOnInsufficientBalanceOrAllowance",
+          "type": "bool"
+        },
+        {
+          "name": "v",
+          "type": "uint8"
+        },
+        {
+          "name": "r",
+          "type": "bytes32"
+        },
+        {
+          "name": "s",
+          "type": "bytes32"
+        }
+      ],
+      "name": "fillOrder",
+      "outputs": [
+        {
+          "name": "filledTakerTokenAmount",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "orderAddresses",
+          "type": "address[5]"
+        },
+        {
+          "name": "orderValues",
+          "type": "uint256[6]"
+        }
+      ],
+      "name": "getOrderHash",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bytes32"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "EXTERNAL_QUERY_GAS_LIMIT",
+      "outputs": [
+        {
+          "name": "",
+          "type": "uint16"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "VERSION",
+      "outputs": [
+        {
+          "name": "",
+          "type": "string"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "name": "_zrxToken",
+          "type": "address"
+        },
+        {
+          "name": "_tokenTransferProxy",
+          "type": "address"
+        }
+      ],
+      "payable": false,
+      "type": "constructor"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "name": "maker",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "name": "taker",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "name": "feeRecipient",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "name": "makerToken",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "name": "takerToken",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "name": "filledMakerTokenAmount",
+          "type": "uint256"
+        },
+        {
+          "indexed": false,
+          "name": "filledTakerTokenAmount",
+          "type": "uint256"
+        },
+        {
+          "indexed": false,
+          "name": "paidMakerFee",
+          "type": "uint256"
+        },
+        {
+          "indexed": false,
+          "name": "paidTakerFee",
+          "type": "uint256"
+        },
+        {
+          "indexed": true,
+          "name": "tokens",
+          "type": "bytes32"
+        },
+        {
+          "indexed": false,
+          "name": "orderHash",
+          "type": "bytes32"
+        }
+      ],
+      "name": "LogFill",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "name": "maker",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "name": "feeRecipient",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "name": "makerToken",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "name": "takerToken",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "name": "cancelledMakerTokenAmount",
+          "type": "uint256"
+        },
+        {
+          "indexed": false,
+          "name": "cancelledTakerTokenAmount",
+          "type": "uint256"
+        },
+        {
+          "indexed": true,
+          "name": "tokens",
+          "type": "bytes32"
+        },
+        {
+          "indexed": false,
+          "name": "orderHash",
+          "type": "bytes32"
+        }
+      ],
+      "name": "LogCancel",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "name": "errorId",
+          "type": "uint8"
+        },
+        {
+          "indexed": true,
+          "name": "orderHash",
+          "type": "bytes32"
+        }
+      ],
+      "name": "LogError",
+      "type": "event"
+    }
+  ],
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+            },
+            {
+              "indexed": false,
+              "name": "orderHash",
+              "type": "bytes32"
+            }
+          ],
+          "name": "LogCancel",
+          "type": "event"
+        },
+        "0x36d86c59e00bd73dc19ba3adfe068e4b64ac7e92be35546adeddf1b956a87e90": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "errorId",
+              "type": "uint8"
+            },
+            {
+              "indexed": true,
+              "name": "orderHash",
+              "type": "bytes32"
+            }
+          ],
+          "name": "LogError",
+          "type": "event"
+        }
+      },
+      "updated_at": 1502480340000,
+      "address": "0x12459c951127e0c374ff9105dda097662a027093"
+    },
+    "3": {
+      "links": {},
+      "events": {
+        "0x0d0b9391970d9a25552f37d436d2aae2925e2bfe1b2a923754bada030c498cb3": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "maker",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "taker",
+              "type": "address"
+            },
+            {
+              "indexed": true,
+              "name": "feeRecipient",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "makerToken",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "takerToken",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "filledMakerTokenAmount",
+              "type": "uint256"
+            },
+            {
+              "indexed": false,
+              "name": "filledTakerTokenAmount",
+              "type": "uint256"
+            },
+            {
+              "indexed": false,
+              "name": "paidMakerFee",
+              "type": "uint256"
+            },
+            {
+              "indexed": false,
+              "name": "paidTakerFee",
+              "type": "uint256"
+            },
+            {
+              "indexed": true,
+              "name": "tokens",
+              "type": "bytes32"
+            },
+            {
+              "indexed": false,
+              "name": "orderHash",
+              "type": "bytes32"
+            }
+          ],
+          "name": "LogFill",
+          "type": "event"
+        },
+        "0x67d66f160bc93d925d05dae1794c90d2d6d6688b29b84ff069398a9b04587131": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "maker",
+              "type": "address"
+            },
+            {
+              "indexed": true,
+              "name": "feeRecipient",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "makerToken",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "takerToken",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "cancelledMakerTokenAmount",
+              "type": "uint256"
+            },
+            {
+              "indexed": false,
+              "name": "cancelledTakerTokenAmount",
+              "type": "uint256"
+            },
+            {
+              "indexed": true,
+              "name": "tokens",
+              "type": "bytes32"
+            },
+            {
+              "indexed": false,
+              "name": "orderHash",
+              "type": "bytes32"
+            }
+          ],
+          "name": "LogCancel",
+          "type": "event"
+        },
+        "0x36d86c59e00bd73dc19ba3adfe068e4b64ac7e92be35546adeddf1b956a87e90": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "errorId",
+              "type": "uint8"
+            },
+            {
+              "indexed": true,
+              "name": "orderHash",
+              "type": "bytes32"
+            }
+          ],
+          "name": "LogError",
+          "type": "event"
+        }
+      },
+      "updated_at": 1506602007000,
+      "address": "0x479cc461fecd078f766ecc58533d6f69580cf3ac"
+    },
+    "42": {
+      "links": {},
+      "events": {
+        "0x0d0b9391970d9a25552f37d436d2aae2925e2bfe1b2a923754bada030c498cb3": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "maker",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "taker",
+              "type": "address"
+            },
+            {
+              "indexed": true,
+              "name": "feeRecipient",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "makerToken",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "takerToken",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "filledMakerTokenAmount",
+              "type": "uint256"
+            },
+            {
+              "indexed": false,
+              "name": "filledTakerTokenAmount",
+              "type": "uint256"
+            },
+            {
+              "indexed": false,
+              "name": "paidMakerFee",
+              "type": "uint256"
+            },
+            {
+              "indexed": false,
+              "name": "paidTakerFee",
+              "type": "uint256"
+            },
+            {
+              "indexed": true,
+              "name": "tokens",
+              "type": "bytes32"
+            },
+            {
+              "indexed": false,
+              "name": "orderHash",
+              "type": "bytes32"
+            }
+          ],
+          "name": "LogFill",
+          "type": "event"
+        },
+        "0x67d66f160bc93d925d05dae1794c90d2d6d6688b29b84ff069398a9b04587131": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "maker",
+              "type": "address"
+            },
+            {
+              "indexed": true,
+              "name": "feeRecipient",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "makerToken",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "takerToken",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "cancelledMakerTokenAmount",
+              "type": "uint256"
+            },
+            {
+              "indexed": false,
+              "name": "cancelledTakerTokenAmount",
+              "type": "uint256"
+            },
+            {
+              "indexed": true,
+              "name": "tokens",
+              "type": "bytes32"
+            },
+            {
+              "indexed": false,
+              "name": "orderHash",
+              "type": "bytes32"
+            }
+          ],
+          "name": "LogCancel",
+          "type": "event"
+        },
+        "0x36d86c59e00bd73dc19ba3adfe068e4b64ac7e92be35546adeddf1b956a87e90": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "errorId",
+              "type": "uint8"
+            },
+            {
+              "indexed": true,
+              "name": "orderHash",
+              "type": "bytes32"
+            }
+          ],
+          "name": "LogError",
+          "type": "event"
+        }
+      },
+      "updated_at": 1502391794390,
+      "address": "0x90fe2af704b34e0224bf2299c838e04d4dcf1364"
+    },
+    "50": {
+      "links": {},
+      "events": {
+        "0x0d0b9391970d9a25552f37d436d2aae2925e2bfe1b2a923754bada030c498cb3": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "maker",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "taker",
+              "type": "address"
+            },
+            {
+              "indexed": true,
+              "name": "feeRecipient",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "makerToken",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "takerToken",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "filledMakerTokenAmount",
+              "type": "uint256"
+            },
+            {
+              "indexed": false,
+              "name": "filledTakerTokenAmount",
+              "type": "uint256"
+            },
+            {
+              "indexed": false,
+              "name": "paidMakerFee",
+              "type": "uint256"
+            },
+            {
+              "indexed": false,
+              "name": "paidTakerFee",
+              "type": "uint256"
+            },
+            {
+              "indexed": true,
+              "name": "tokens",
+              "type": "bytes32"
+            },
+            {
+              "indexed": false,
+              "name": "orderHash",
+              "type": "bytes32"
+            }
+          ],
+          "name": "LogFill",
+          "type": "event"
+        },
+        "0x67d66f160bc93d925d05dae1794c90d2d6d6688b29b84ff069398a9b04587131": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "maker",
+              "type": "address"
+            },
+            {
+              "indexed": true,
+              "name": "feeRecipient",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "makerToken",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "takerToken",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "cancelledMakerTokenAmount",
+              "type": "uint256"
+            },
+            {
+              "indexed": false,
+              "name": "cancelledTakerTokenAmount",
+              "type": "uint256"
+            },
+            {
+              "indexed": true,
+              "name": "tokens",
+              "type": "bytes32"
+            },
+            {
+              "indexed": false,
+              "name": "orderHash",
+              "type": "bytes32"
+            }
+          ],
+          "name": "LogCancel",
+          "type": "event"
+        },
+        "0x36d86c59e00bd73dc19ba3adfe068e4b64ac7e92be35546adeddf1b956a87e90": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "errorId",
+              "type": "uint8"
+            },
+            {
+              "indexed": true,
+              "name": "orderHash",
+              "type": "bytes32"
+            }
+          ],
+          "name": "LogError",
+          "type": "event"
+        }
+      },
+      "updated_at": 1503318938231,
+      "address": "0xb69e673309512a9d726f87304c6984054f87a93b"
+    }
+  },
+  "schema_version": "0.0.5",
+  "updated_at": 1503318938231
+}
diff --git a/packages/0x.js/src/artifacts/Token.json b/packages/0x.js/src/artifacts/Token.json
new file mode 100644
index 000000000..e922ff66d
--- /dev/null
+++ b/packages/0x.js/src/artifacts/Token.json
@@ -0,0 +1,176 @@
+{
+  "contract_name": "Token",
+  "abi": [
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "_spender",
+          "type": "address"
+        },
+        {
+          "name": "_value",
+          "type": "uint256"
+        }
+      ],
+      "name": "approve",
+      "outputs": [
+        {
+          "name": "success",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "totalSupply",
+      "outputs": [
+        {
+          "name": "supply",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "_from",
+          "type": "address"
+        },
+        {
+          "name": "_to",
+          "type": "address"
+        },
+        {
+          "name": "_value",
+          "type": "uint256"
+        }
+      ],
+      "name": "transferFrom",
+      "outputs": [
+        {
+          "name": "success",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "_owner",
+          "type": "address"
+        }
+      ],
+      "name": "balanceOf",
+      "outputs": [
+        {
+          "name": "balance",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "_to",
+          "type": "address"
+        },
+        {
+          "name": "_value",
+          "type": "uint256"
+        }
+      ],
+      "name": "transfer",
+      "outputs": [
+        {
+          "name": "success",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "_owner",
+          "type": "address"
+        },
+        {
+          "name": "_spender",
+          "type": "address"
+        }
+      ],
+      "name": "allowance",
+      "outputs": [
+        {
+          "name": "remaining",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "name": "_from",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "name": "_to",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "name": "_value",
+          "type": "uint256"
+        }
+      ],
+      "name": "Transfer",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "name": "_owner",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "name": "_spender",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "name": "_value",
+          "type": "uint256"
+        }
+      ],
+      "name": "Approval",
+      "type": "event"
+    }
+  ],
+  "unlinked_binary": "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",
+  "networks": {},
+  "schema_version": "0.0.5",
+  "updated_at": 1503317882695
+}
\ No newline at end of file
diff --git a/packages/0x.js/src/artifacts/TokenRegistry.json b/packages/0x.js/src/artifacts/TokenRegistry.json
new file mode 100644
index 000000000..5a0564a69
--- /dev/null
+++ b/packages/0x.js/src/artifacts/TokenRegistry.json
@@ -0,0 +1,1211 @@
+{
+  "contract_name": "TokenRegistry",
+  "abi": [
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "_token",
+          "type": "address"
+        },
+        {
+          "name": "_index",
+          "type": "uint256"
+        }
+      ],
+      "name": "removeToken",
+      "outputs": [],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "_name",
+          "type": "string"
+        }
+      ],
+      "name": "getTokenAddressByName",
+      "outputs": [
+        {
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "_symbol",
+          "type": "string"
+        }
+      ],
+      "name": "getTokenAddressBySymbol",
+      "outputs": [
+        {
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "_token",
+          "type": "address"
+        },
+        {
+          "name": "_swarmHash",
+          "type": "bytes"
+        }
+      ],
+      "name": "setTokenSwarmHash",
+      "outputs": [],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "_token",
+          "type": "address"
+        }
+      ],
+      "name": "getTokenMetaData",
+      "outputs": [
+        {
+          "name": "",
+          "type": "address"
+        },
+        {
+          "name": "",
+          "type": "string"
+        },
+        {
+          "name": "",
+          "type": "string"
+        },
+        {
+          "name": "",
+          "type": "uint8"
+        },
+        {
+          "name": "",
+          "type": "bytes"
+        },
+        {
+          "name": "",
+          "type": "bytes"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "owner",
+      "outputs": [
+        {
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "_token",
+          "type": "address"
+        },
+        {
+          "name": "_name",
+          "type": "string"
+        },
+        {
+          "name": "_symbol",
+          "type": "string"
+        },
+        {
+          "name": "_decimals",
+          "type": "uint8"
+        },
+        {
+          "name": "_ipfsHash",
+          "type": "bytes"
+        },
+        {
+          "name": "_swarmHash",
+          "type": "bytes"
+        }
+      ],
+      "name": "addToken",
+      "outputs": [],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "_token",
+          "type": "address"
+        },
+        {
+          "name": "_name",
+          "type": "string"
+        }
+      ],
+      "name": "setTokenName",
+      "outputs": [],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "name": "tokens",
+      "outputs": [
+        {
+          "name": "token",
+          "type": "address"
+        },
+        {
+          "name": "name",
+          "type": "string"
+        },
+        {
+          "name": "symbol",
+          "type": "string"
+        },
+        {
+          "name": "decimals",
+          "type": "uint8"
+        },
+        {
+          "name": "ipfsHash",
+          "type": "bytes"
+        },
+        {
+          "name": "swarmHash",
+          "type": "bytes"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "name": "tokenAddresses",
+      "outputs": [
+        {
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "_name",
+          "type": "string"
+        }
+      ],
+      "name": "getTokenByName",
+      "outputs": [
+        {
+          "name": "",
+          "type": "address"
+        },
+        {
+          "name": "",
+          "type": "string"
+        },
+        {
+          "name": "",
+          "type": "string"
+        },
+        {
+          "name": "",
+          "type": "uint8"
+        },
+        {
+          "name": "",
+          "type": "bytes"
+        },
+        {
+          "name": "",
+          "type": "bytes"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "getTokenAddresses",
+      "outputs": [
+        {
+          "name": "",
+          "type": "address[]"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "_token",
+          "type": "address"
+        },
+        {
+          "name": "_ipfsHash",
+          "type": "bytes"
+        }
+      ],
+      "name": "setTokenIpfsHash",
+      "outputs": [],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "_symbol",
+          "type": "string"
+        }
+      ],
+      "name": "getTokenBySymbol",
+      "outputs": [
+        {
+          "name": "",
+          "type": "address"
+        },
+        {
+          "name": "",
+          "type": "string"
+        },
+        {
+          "name": "",
+          "type": "string"
+        },
+        {
+          "name": "",
+          "type": "uint8"
+        },
+        {
+          "name": "",
+          "type": "bytes"
+        },
+        {
+          "name": "",
+          "type": "bytes"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "_token",
+          "type": "address"
+        },
+        {
+          "name": "_symbol",
+          "type": "string"
+        }
+      ],
+      "name": "setTokenSymbol",
+      "outputs": [],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "newOwner",
+          "type": "address"
+        }
+      ],
+      "name": "transferOwnership",
+      "outputs": [],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "name": "token",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "name": "name",
+          "type": "string"
+        },
+        {
+          "indexed": false,
+          "name": "symbol",
+          "type": "string"
+        },
+        {
+          "indexed": false,
+          "name": "decimals",
+          "type": "uint8"
+        },
+        {
+          "indexed": false,
+          "name": "ipfsHash",
+          "type": "bytes"
+        },
+        {
+          "indexed": false,
+          "name": "swarmHash",
+          "type": "bytes"
+        }
+      ],
+      "name": "LogAddToken",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "name": "token",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "name": "name",
+          "type": "string"
+        },
+        {
+          "indexed": false,
+          "name": "symbol",
+          "type": "string"
+        },
+        {
+          "indexed": false,
+          "name": "decimals",
+          "type": "uint8"
+        },
+        {
+          "indexed": false,
+          "name": "ipfsHash",
+          "type": "bytes"
+        },
+        {
+          "indexed": false,
+          "name": "swarmHash",
+          "type": "bytes"
+        }
+      ],
+      "name": "LogRemoveToken",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "name": "token",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "name": "oldName",
+          "type": "string"
+        },
+        {
+          "indexed": false,
+          "name": "newName",
+          "type": "string"
+        }
+      ],
+      "name": "LogTokenNameChange",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "name": "token",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "name": "oldSymbol",
+          "type": "string"
+        },
+        {
+          "indexed": false,
+          "name": "newSymbol",
+          "type": "string"
+        }
+      ],
+      "name": "LogTokenSymbolChange",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "name": "token",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "name": "oldIpfsHash",
+          "type": "bytes"
+        },
+        {
+          "indexed": false,
+          "name": "newIpfsHash",
+          "type": "bytes"
+        }
+      ],
+      "name": "LogTokenIpfsHashChange",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "name": "token",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "name": "oldSwarmHash",
+          "type": "bytes"
+        },
+        {
+          "indexed": false,
+          "name": "newSwarmHash",
+          "type": "bytes"
+        }
+      ],
+      "name": "LogTokenSwarmHashChange",
+      "type": "event"
+    }
+  ],
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+            },
+            {
+              "indexed": false,
+              "name": "symbol",
+              "type": "string"
+            },
+            {
+              "indexed": false,
+              "name": "decimals",
+              "type": "uint8"
+            },
+            {
+              "indexed": false,
+              "name": "ipfsHash",
+              "type": "bytes"
+            },
+            {
+              "indexed": false,
+              "name": "swarmHash",
+              "type": "bytes"
+            }
+          ],
+          "name": "LogAddToken",
+          "type": "event"
+        },
+        "0x32c54f1e2ea75844ded7517e7dbcd3895da7cd0c28f9ab9f9cf6ecf5f83762c6": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "token",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "name",
+              "type": "string"
+            },
+            {
+              "indexed": false,
+              "name": "symbol",
+              "type": "string"
+            },
+            {
+              "indexed": false,
+              "name": "decimals",
+              "type": "uint8"
+            },
+            {
+              "indexed": false,
+              "name": "ipfsHash",
+              "type": "bytes"
+            },
+            {
+              "indexed": false,
+              "name": "swarmHash",
+              "type": "bytes"
+            }
+          ],
+          "name": "LogRemoveToken",
+          "type": "event"
+        },
+        "0x4a6dbfc867b179991dec22ff19960f0a94d8d9d891fc556f547764670340e8ae": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "token",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "oldName",
+              "type": "string"
+            },
+            {
+              "indexed": false,
+              "name": "newName",
+              "type": "string"
+            }
+          ],
+          "name": "LogTokenNameChange",
+          "type": "event"
+        },
+        "0x53d878a6530e56c9bc96548fa0a8cae4f1d1f49c86b0e934c086b992ebb6998f": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "token",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "oldSymbol",
+              "type": "string"
+            },
+            {
+              "indexed": false,
+              "name": "newSymbol",
+              "type": "string"
+            }
+          ],
+          "name": "LogTokenSymbolChange",
+          "type": "event"
+        },
+        "0x5b19f79ac4e8cfa820815502e11615f1a449e28155dc289ec5cac1a11f908694": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "token",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "oldIpfsHash",
+              "type": "bytes"
+            },
+            {
+              "indexed": false,
+              "name": "newIpfsHash",
+              "type": "bytes"
+            }
+          ],
+          "name": "LogTokenIpfsHashChange",
+          "type": "event"
+        },
+        "0xc3168fdc13112e44a031057dbf6c609b33353addb4d8037d24543e22cbfe2acd": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "token",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "oldSwarmHash",
+              "type": "bytes"
+            },
+            {
+              "indexed": false,
+              "name": "newSwarmHash",
+              "type": "bytes"
+            }
+          ],
+          "name": "LogTokenSwarmHashChange",
+          "type": "event"
+        }
+      },
+      "updated_at": 1502488442000,
+      "address": "0x926a74c5c36adf004c87399e65f75628b0f98d2c"
+    },
+    "3": {
+      "links": {},
+      "events": {
+        "0xd8d928b0b50ca11d9dc273236b46f3526515b03602f71f3a6af4f45bd9fa9144": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "token",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "name",
+              "type": "string"
+            },
+            {
+              "indexed": false,
+              "name": "symbol",
+              "type": "string"
+            },
+            {
+              "indexed": false,
+              "name": "decimals",
+              "type": "uint8"
+            },
+            {
+              "indexed": false,
+              "name": "ipfsHash",
+              "type": "bytes"
+            },
+            {
+              "indexed": false,
+              "name": "swarmHash",
+              "type": "bytes"
+            }
+          ],
+          "name": "LogAddToken",
+          "type": "event"
+        },
+        "0x32c54f1e2ea75844ded7517e7dbcd3895da7cd0c28f9ab9f9cf6ecf5f83762c6": {
+          "anonymous": false,
+          "inputs": [
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+              "indexed": true,
+              "name": "token",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "name",
+              "type": "string"
+            },
+            {
+              "indexed": false,
+              "name": "symbol",
+              "type": "string"
+            },
+            {
+              "indexed": false,
+              "name": "decimals",
+              "type": "uint8"
+            },
+            {
+              "indexed": false,
+              "name": "ipfsHash",
+              "type": "bytes"
+            },
+            {
+              "indexed": false,
+              "name": "swarmHash",
+              "type": "bytes"
+            }
+          ],
+          "name": "LogRemoveToken",
+          "type": "event"
+        },
+        "0x4a6dbfc867b179991dec22ff19960f0a94d8d9d891fc556f547764670340e8ae": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "token",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "oldName",
+              "type": "string"
+            },
+            {
+              "indexed": false,
+              "name": "newName",
+              "type": "string"
+            }
+          ],
+          "name": "LogTokenNameChange",
+          "type": "event"
+        },
+        "0x53d878a6530e56c9bc96548fa0a8cae4f1d1f49c86b0e934c086b992ebb6998f": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "token",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "oldSymbol",
+              "type": "string"
+            },
+            {
+              "indexed": false,
+              "name": "newSymbol",
+              "type": "string"
+            }
+          ],
+          "name": "LogTokenSymbolChange",
+          "type": "event"
+        },
+        "0x5b19f79ac4e8cfa820815502e11615f1a449e28155dc289ec5cac1a11f908694": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "token",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "oldIpfsHash",
+              "type": "bytes"
+            },
+            {
+              "indexed": false,
+              "name": "newIpfsHash",
+              "type": "bytes"
+            }
+          ],
+          "name": "LogTokenIpfsHashChange",
+          "type": "event"
+        },
+        "0xc3168fdc13112e44a031057dbf6c609b33353addb4d8037d24543e22cbfe2acd": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "token",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "oldSwarmHash",
+              "type": "bytes"
+            },
+            {
+              "indexed": false,
+              "name": "newSwarmHash",
+              "type": "bytes"
+            }
+          ],
+          "name": "LogTokenSwarmHashChange",
+          "type": "event"
+        }
+      },
+      "updated_at": 1506602007000,
+      "address": "0x6b1a50f0bb5a7995444bd3877b22dc89c62843ed"
+    },
+    "42": {
+      "links": {},
+      "events": {
+        "0xd8d928b0b50ca11d9dc273236b46f3526515b03602f71f3a6af4f45bd9fa9144": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "token",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "name",
+              "type": "string"
+            },
+            {
+              "indexed": false,
+              "name": "symbol",
+              "type": "string"
+            },
+            {
+              "indexed": false,
+              "name": "decimals",
+              "type": "uint8"
+            },
+            {
+              "indexed": false,
+              "name": "ipfsHash",
+              "type": "bytes"
+            },
+            {
+              "indexed": false,
+              "name": "swarmHash",
+              "type": "bytes"
+            }
+          ],
+          "name": "LogAddToken",
+          "type": "event"
+        },
+        "0x32c54f1e2ea75844ded7517e7dbcd3895da7cd0c28f9ab9f9cf6ecf5f83762c6": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "token",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "name",
+              "type": "string"
+            },
+            {
+              "indexed": false,
+              "name": "symbol",
+              "type": "string"
+            },
+            {
+              "indexed": false,
+              "name": "decimals",
+              "type": "uint8"
+            },
+            {
+              "indexed": false,
+              "name": "ipfsHash",
+              "type": "bytes"
+            },
+            {
+              "indexed": false,
+              "name": "swarmHash",
+              "type": "bytes"
+            }
+          ],
+          "name": "LogRemoveToken",
+          "type": "event"
+        },
+        "0x4a6dbfc867b179991dec22ff19960f0a94d8d9d891fc556f547764670340e8ae": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "token",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "oldName",
+              "type": "string"
+            },
+            {
+              "indexed": false,
+              "name": "newName",
+              "type": "string"
+            }
+          ],
+          "name": "LogTokenNameChange",
+          "type": "event"
+        },
+        "0x53d878a6530e56c9bc96548fa0a8cae4f1d1f49c86b0e934c086b992ebb6998f": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "token",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "oldSymbol",
+              "type": "string"
+            },
+            {
+              "indexed": false,
+              "name": "newSymbol",
+              "type": "string"
+            }
+          ],
+          "name": "LogTokenSymbolChange",
+          "type": "event"
+        },
+        "0x5b19f79ac4e8cfa820815502e11615f1a449e28155dc289ec5cac1a11f908694": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "token",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "oldIpfsHash",
+              "type": "bytes"
+            },
+            {
+              "indexed": false,
+              "name": "newIpfsHash",
+              "type": "bytes"
+            }
+          ],
+          "name": "LogTokenIpfsHashChange",
+          "type": "event"
+        },
+        "0xc3168fdc13112e44a031057dbf6c609b33353addb4d8037d24543e22cbfe2acd": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "token",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "oldSwarmHash",
+              "type": "bytes"
+            },
+            {
+              "indexed": false,
+              "name": "newSwarmHash",
+              "type": "bytes"
+            }
+          ],
+          "name": "LogTokenSwarmHashChange",
+          "type": "event"
+        }
+      },
+      "updated_at": 1502391794385,
+      "address": "0xf18e504561f4347bea557f3d4558f559dddbae7f"
+    },
+    "50": {
+      "links": {},
+      "events": {
+        "0xd8d928b0b50ca11d9dc273236b46f3526515b03602f71f3a6af4f45bd9fa9144": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "token",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "name",
+              "type": "string"
+            },
+            {
+              "indexed": false,
+              "name": "symbol",
+              "type": "string"
+            },
+            {
+              "indexed": false,
+              "name": "decimals",
+              "type": "uint8"
+            },
+            {
+              "indexed": false,
+              "name": "ipfsHash",
+              "type": "bytes"
+            },
+            {
+              "indexed": false,
+              "name": "swarmHash",
+              "type": "bytes"
+            }
+          ],
+          "name": "LogAddToken",
+          "type": "event"
+        },
+        "0x32c54f1e2ea75844ded7517e7dbcd3895da7cd0c28f9ab9f9cf6ecf5f83762c6": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "token",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "name",
+              "type": "string"
+            },
+            {
+              "indexed": false,
+              "name": "symbol",
+              "type": "string"
+            },
+            {
+              "indexed": false,
+              "name": "decimals",
+              "type": "uint8"
+            },
+            {
+              "indexed": false,
+              "name": "ipfsHash",
+              "type": "bytes"
+            },
+            {
+              "indexed": false,
+              "name": "swarmHash",
+              "type": "bytes"
+            }
+          ],
+          "name": "LogRemoveToken",
+          "type": "event"
+        },
+        "0x4a6dbfc867b179991dec22ff19960f0a94d8d9d891fc556f547764670340e8ae": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "token",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "oldName",
+              "type": "string"
+            },
+            {
+              "indexed": false,
+              "name": "newName",
+              "type": "string"
+            }
+          ],
+          "name": "LogTokenNameChange",
+          "type": "event"
+        },
+        "0x53d878a6530e56c9bc96548fa0a8cae4f1d1f49c86b0e934c086b992ebb6998f": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "token",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "oldSymbol",
+              "type": "string"
+            },
+            {
+              "indexed": false,
+              "name": "newSymbol",
+              "type": "string"
+            }
+          ],
+          "name": "LogTokenSymbolChange",
+          "type": "event"
+        },
+        "0x5b19f79ac4e8cfa820815502e11615f1a449e28155dc289ec5cac1a11f908694": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "token",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "oldIpfsHash",
+              "type": "bytes"
+            },
+            {
+              "indexed": false,
+              "name": "newIpfsHash",
+              "type": "bytes"
+            }
+          ],
+          "name": "LogTokenIpfsHashChange",
+          "type": "event"
+        },
+        "0xc3168fdc13112e44a031057dbf6c609b33353addb4d8037d24543e22cbfe2acd": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "name": "token",
+              "type": "address"
+            },
+            {
+              "indexed": false,
+              "name": "oldSwarmHash",
+              "type": "bytes"
+            },
+            {
+              "indexed": false,
+              "name": "newSwarmHash",
+              "type": "bytes"
+            }
+          ],
+          "name": "LogTokenSwarmHashChange",
+          "type": "event"
+        }
+      },
+      "updated_at": 1503318938228,
+      "address": "0x0b1ba0af832d7c05fd64161e0db78e85978e8082"
+    }
+  },
+  "schema_version": "0.0.5",
+  "updated_at": 1503318938228
+}
diff --git a/packages/0x.js/src/artifacts/TokenTransferProxy.json b/packages/0x.js/src/artifacts/TokenTransferProxy.json
new file mode 100644
index 000000000..beeb16cfe
--- /dev/null
+++ b/packages/0x.js/src/artifacts/TokenTransferProxy.json
@@ -0,0 +1,174 @@
+{
+  "contract_name": "TokenTransferProxy",
+  "abi": [
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "token",
+          "type": "address"
+        },
+        {
+          "name": "from",
+          "type": "address"
+        },
+        {
+          "name": "to",
+          "type": "address"
+        },
+        {
+          "name": "value",
+          "type": "uint256"
+        }
+      ],
+      "name": "transferFrom",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "target",
+          "type": "address"
+        }
+      ],
+      "name": "addAuthorizedAddress",
+      "outputs": [],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "name": "authorities",
+      "outputs": [
+        {
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "target",
+          "type": "address"
+        }
+      ],
+      "name": "removeAuthorizedAddress",
+      "outputs": [],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "owner",
+      "outputs": [
+        {
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "name": "authorized",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "getAuthorizedAddresses",
+      "outputs": [
+        {
+          "name": "",
+          "type": "address[]"
+        }
+      ],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "newOwner",
+          "type": "address"
+        }
+      ],
+      "name": "transferOwnership",
+      "outputs": [],
+      "payable": false,
+      "type": "function"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "name": "target",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "name": "caller",
+          "type": "address"
+        }
+      ],
+      "name": "LogAuthorizedAddressAdded",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "name": "target",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "name": "caller",
+          "type": "address"
+        }
+      ],
+      "name": "LogAuthorizedAddressRemoved",
+      "type": "event"
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