QFqfex
builder

Get the wallet message for a builder trading key

Changed on

Public endpoint. Pass address and builder_code as query parameters. Returns a SIWE message with the supplied wallet address and the supplied builder code, a random nonce, and a ten-minute validity window. Sign the returned message unchanged and submit it to /builder/web3/api-key.

get/builder/web3/message

Request

  • Base URL
    https://api.qfex.com
  • URL
    https://api.qfex.com/builder/web3/message
  • Auth
    none required

Query parameters

domainstring

Website hostname; defaults to the configured URI host or www.qfex.com.

addressstring required
builder_codestring uuid required
api_versionstring
Example:2026-10-30

Published API contract date. Omit or use latest for the latest contract; explicit dates stay pinned. Applies to request validation and response format.

Response

OK

$schemastring uri

A URL to the JSON Schema for this object.

messagestring required

Example response

{
  "$schema": "https://api.qfex.com/contracts/2026-10-30/schemas/BuilderWalletMessageResponseBody.json"
}

Changes