Prepare a generic on-chain transaction (low-level)

POST

/api/v1/tx/prepare

• Production
• Sandbox (us-east-1)

Most clients use POST /api/v1/events/prepare or POST /api/v1/custody/prepare instead. This is the low-level primitive for advanced use cases (process flows the client constructs explicitly).

Authorizations

• bearerAuth
• apiKey

Request Body ^required

object

method

required

Smart-contract method name (e.g. recordEvent).

string

processId

required

Bytes32 hex of the process map id.

string

inputTokenIds

Array<integer>

outputs

Array<object>

object

containmentMode

integer

Allowed values: 0 1

metadata

required

object

key

additional properties

any

Responses

200

Unsigned transaction + metadata

object

preparedTx

object

to

Contract address

string

data

Hex-encoded calldata

string

gasEstimate

integer

chainId

integer

metadata

object

key

additional properties

any