Create Transfer

Submit a value-movement intent. The same endpoint handles same-chain transfers, same-chain swaps, and cross-chain bridges. Mure infers the operation type from the request:

transfer — same chain, same asset.
swap — same chain, different input and output assets.
bridge — different source and destination chains.

POST /transfers

Request Body

Field	Type	Required	Description
`from`	CAIP-10	Yes	Source account and chain (`eip155:{chainId}:{address}`).
`to`	CAIP-10	Yes	Destination account and chain.
`asset`	CAIP-10 \| `{ in: CAIP-10, out: CAIP-10 }`	Yes	Token to move. Use `{ in, out }` for swaps.
`amount`	string	Yes	Amount as a decimal string.
`deadline`	string	No	Latest execution time (ISO 8601). Defaults to +1 hour.
`callData`	string	No	Hex-encoded calldata forwarded to the recipient output. Max 10,240 bytes.

{
  "from": "eip155:11155111:0x3165...",
  "to": "eip155:11155111:0x8f66...",
  "asset": "eip155:11155111:0xA0b8...",
  "amount": "1000.50"
}

Same-chain swap

{
  "from": "eip155:11155111:0x3165...",
  "to": "eip155:11155111:0x8f66...",
  "asset": {
    "in": "eip155:11155111:0xA0b8...",
    "out": "eip155:11155111:0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE"
  },
  "amount": "1000.50"
}

{
  "from": "eip155:1:0x3165...",
  "to": "eip155:42161:0x8f66...",
  "asset": {
    "in": "eip155:1:0xA0b8...",
    "out": "eip155:42161:0xFF97..."
  },
  "amount": "1000.50"
}

{
  "id": "int_transfer_01HT...",
  "type": "transfer",
  "status": "draft",
  "orderId": "0x0000000000000000000000000000000000000000000000000000000000000000",
  "createdAt": "2026-06-05T12:00:00Z",
  "updatedAt": "2026-06-05T12:00:00Z",
  "metadata": {
    "chainId": "eip155:11155111",
    "gas": "21000"
  },
  "tx": {
    "to": "0x...",
    "data": "0x...",
    "value": "0",
    "chainId": 11155111
  }
}

Response Fields

Field	Type	Description
`id`	string	Unique intent ID (`int_transfer_{ulid}`).
`type`	string	Inferred operation type: `transfer`, `swap`, or `bridge`.
`status`	string	Lifecycle status. See Intent Lifecycle.
`orderId`	string	Deterministic on-chain order identifier (`bytes32` hex).
`createdAt`	string	ISO 8601 creation timestamp.
`updatedAt`	string	ISO 8601 last update timestamp.
`metadata`	object	Chain ID, gas estimate, and optional transaction details.
`tx`	object	Transaction payload ready for on-chain submission.

Errors

HTTP	Type	When
400	bad-request	Malformed JSON or a payload that fails schema validation.
401	missing-api-key	No `api-key` header.
403	invalid-api-key	Invalid API key.
403	chain-not-allowed-for-key-environment	The key's environment cannot act on the requested chain.
422	validation-failed	Domain validation failure such as an unknown asset symbol.
429	rate-limited	Rate limit exceeded.
500	transfer-service-failure	Unexpected transfer service error.