openapi: 3.1.0
info:
  title: Coinbase Advanced Trade Accounts Conversions API
  description: The Coinbase Advanced Trade API provides programmatic access to advanced trading features on the Coinbase platform. Developers can automate market, limit, and stop-limit orders, manage portfolios, retrieve real-time and historical market data, and monitor fees. The REST API is available at api.coinbase.com/api/v3/brokerage and supports authenticated access using API keys with HMAC SHA-256 signatures. Public market data endpoints do not require authentication.
  version: '3.0'
  contact:
    name: Coinbase Developer Support
    url: https://help.coinbase.com
  termsOfService: https://www.coinbase.com/legal/user-agreement
servers:
- url: https://api.coinbase.com/api/v3/brokerage
  description: Production Server
security:
- apiKeyAuth: []
tags:
- name: Conversions
  description: Convert between stablecoin currencies on the exchange.
paths:
  /conversions:
    post:
      operationId: createConversion
      summary: Create conversion
      description: Converts funds from one stablecoin currency to another within the exchange account.
      tags:
      - Conversions
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - from
              - to
              - amount
              properties:
                from:
                  type: string
                  description: Currency to convert from
                to:
                  type: string
                  description: Currency to convert to
                amount:
                  type: string
                  description: Amount to convert
      responses:
        '200':
          description: Conversion created
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Conversion'
  /conversions/{conversion_id}:
    get:
      operationId: getConversion
      summary: Get conversion
      description: Retrieves the details of a specific conversion by its conversion ID.
      tags:
      - Conversions
      parameters:
      - name: conversion_id
        in: path
        required: true
        description: Conversion ID
        schema:
          type: string
      responses:
        '200':
          description: Successfully retrieved conversion
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Conversion'
components:
  schemas:
    Conversion:
      type: object
      description: A currency conversion between stablecoins
      properties:
        id:
          type: string
          description: Conversion identifier
        amount:
          type: string
          description: Conversion amount
        from_account_id:
          type: string
          description: Source account ID
        to_account_id:
          type: string
          description: Destination account ID
        from:
          type: string
          description: Source currency
        to:
          type: string
          description: Target currency
  securitySchemes:
    apiKeyAuth:
      type: apiKey
      in: header
      name: CB-ACCESS-KEY
      description: Coinbase API key authentication using HMAC SHA-256 signatures. Requires CB-ACCESS-KEY, CB-ACCESS-SIGN, and CB-ACCESS-TIMESTAMP headers.
externalDocs:
  description: Coinbase Advanced Trade API Documentation
  url: https://docs.cdp.coinbase.com/coinbase-app/advanced-trade-apis/rest-api