> ## Documentation Index
> Fetch the complete documentation index at: https://developers.circle.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Contract taker delegate deliver failed

> The taker's delegated funding transaction failed on-chain.



## OpenAPI

````yaml openapi/stablefx.yaml webhook contractTakerDelegateDeliverFailed
openapi: 3.1.0
info:
  title: StableFX API
  description: >
    The StableFX API provides endpoints for trading stablecoins.


    ## Authentication

    All API requests require authentication using an API key.


    ## Base URL

    The base URL for all API endpoints is:
    `https://api.circle.com/v1/exchange/stablefx`
  version: 1.0.0
servers:
  - url: https://api.circle.com
    description: StableFX API server
security:
  - BearerAuth: []
tags:
  - name: Quotes
    description: Endpoints for creating and managing quotes
  - name: Trades
    description: Endpoints for creating and managing trades
  - name: Signatures
    description: Endpoints for retrieving presign typed data and registering signatures
  - name: Fees
    description: Endpoints for retrieving fees
  - name: Funding
    description: Endpoints for funding trades
  - name: Webhook Subscriptions
    description: Manage subscriptions to notifications
  - name: Settlement Advance
    description: Request, track, and repay settlement advances.
paths: {}
components:
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      bearerFormat: PREFIX:ID:SECRET
      description: >-
        Circle's API Keys are formatted in the following structure
        "PREFIX:ID:SECRET". All three parts are requred to make a successful
        request.

````