Production API ReferenceBlock Trades

Create block trade offer

Create a sub-block offer for an existing block trade.

Required signers submit their order details and pricing for markets defined in the parent block trade.

Requirements:

  • Account must be listed as required signer with active onboarding
  • Valid order signatures for all markets
  • Orders must match parent block trade constraints

Includes:

  • Individual order signatures per market
  • Block trade execution signature with expiration
  • Proper nonce and signature verification data

Returns the created offer with unique ID, parent reference, and order details.

Path parameters

block_trade_idstringRequired
Parent Block Trade ID

Request

Block offer content
noncestringRequired
Unique nonce for this offer request
offering_accountstringRequired
Starknet address of the account making this offer
signatureobjectRequired
Cryptographic signature authorizing this offer
tradesmap from strings to objectsRequired
Map of market symbol to offer details

Response

Created
block_expirationinteger or null
Unix timestamp in milliseconds when block expires
block_idstring or null

Backend-generated unique identifier

block_typeenum or null
Block type
Allowed values:
created_atinteger or null
When block was created
initiatorstring or null
Account that initiated this block trade
last_updated_atinteger or null
When block was last updated
noncestring or null
Original block nonce
parent_block_idstring or null

Parent block ID (if offer-based)

required_signerslist of strings or null
List of accounts that can participate in the block trade
signaturesmap from strings to objects or null

Current signatures on this block (for signature verification)

statusenum or null
Current status of the block trade
tradesmap from strings to objects or null
Map of market to trade details

Errors