3 files changed, 33 insertions, 0 deletions
diff --git a/packages/json-schemas/CHANGELOG.json b/packages/json-schemas/CHANGELOG.json
index 2b37e1836..dfefdfc77 100644
--- a/packages/json-schemas/CHANGELOG.json
+++ b/packages/json-schemas/CHANGELOG.json
@@ -5,6 +5,10 @@
             {
                 "note": "Update schemas for V2",
                 "pr": 615
+            },
+            {
+                "note": "Added CallData schema",
+                "pr": 821
             }
         ]
     },
diff --git a/packages/json-schemas/schemas/call_data_schema.ts b/packages/json-schemas/schemas/call_data_schema.ts
new file mode 100644
index 000000000..e8fcc7512
--- /dev/null
+++ b/packages/json-schemas/schemas/call_data_schema.ts
@@ -0,0 +1,27 @@
+export const callDataSchema = {
+    id: '/TxData',
+    properties: {
+        from: { $ref: '/Address' },
+        to: { $ref: '/Address' },
+        value: {
+            oneOf: [{ $ref: '/Number' }, { $ref: '/JsNumber' }],
+        },
+        gas: {
+            oneOf: [{ $ref: '/Number' }, { $ref: '/JsNumber' }],
+        },
+        gasPrice: {
+            oneOf: [{ $ref: '/Number' }, { $ref: '/JsNumber' }],
+        },
+        data: {
+            type: 'string',
+            pattern: '^0x[0-9a-f]*$',
+        },
+        nonce: {
+            type: 'number',
+            minimum: 0,
+        },
+    },
+    required: [],
+    type: 'object',
+    additionalProperties: false,
+};
diff --git a/packages/json-schemas/src/schemas.ts b/packages/json-schemas/src/schemas.ts
index 77ea88f5c..4e13aeafb 100644
--- a/packages/json-schemas/src/schemas.ts
+++ b/packages/json-schemas/src/schemas.ts
@@ -1,5 +1,6 @@
 import { addressSchema, hexSchema, numberSchema } from '../schemas/basic_type_schemas';
 import { blockParamSchema, blockRangeSchema } from '../schemas/block_range_schema';
+import { callDataSchema } from '../schemas/call_data_schema';
 import { ecSignatureSchema } from '../schemas/ec_signature_schema';
 import { indexFilterValuesSchema } from '../schemas/index_filter_values_schema';
 import { orderCancellationRequestsSchema } from '../schemas/order_cancel_schema';
@@ -31,6 +32,7 @@ import { jsNumber, txDataSchema } from '../schemas/tx_data_schema';
 export const schemas = {
     numberSchema,
     addressSchema,
+    callDataSchema,
     hexSchema,
     ecSignatureSchema,
     indexFilterValuesSchema,