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

# 根据订单币种查询支持闪兑的币种

> 根据订单币种查询支持闪兑的币种

## 概述

本页说明 `GET /payment/open/institution/v1/pay/address/supportedconvertcurrencies` 接口。完整的请求参数、响应结构与示例由上方关联的 OpenAPI 定义渲染。

创建闪兑地址支付单之前，根据订单币种查询支持闪兑的币种，用户从支持闪兑的币种列表中选择实际支付币种创建闪兑支付订单

## 说明

* 认证方式使用 GatePay 标准签名请求头。
* 本页展示同一接口的机构路径版本。
* 除创建子账户、查询子账户详情、分页查询子账户外，机构侧请求需携带 `X-GatePay-On-Behalf-Of`。
* 通用签名规则请参见 [/api-reference/version/100/cn/common/securityAndSignature](/api-reference/version/100/cn/common/securityAndSignature)。


## OpenAPI

````yaml api-reference/version/100/cn/openapi/institution/address-payment-openapi.json GET /payment/open/institution/v1/pay/address/supportedconvertcurrencies
openapi: 3.0.1
info:
  title: GatePay 地址支付 API
  version: 1.0.0
  description: GatePay 地址支付接口（中文描述）
servers:
  - url: https://openplatform.gateapi.io
security: []
paths:
  /payment/open/institution/v1/pay/address/supportedconvertcurrencies:
    get:
      summary: 查询支持闪兑币种
      description: 根据订单币种查询支持闪兑的币种
      parameters:
        - $ref: '#/components/parameters/X-GatePay-Certificate-ClientId'
        - $ref: '#/components/parameters/X-GatePay-Signature'
        - $ref: '#/components/parameters/X-GatePay-Timestamp'
        - $ref: '#/components/parameters/X-GatePay-Nonce'
        - name: currency
          in: query
          required: true
          schema:
            type: string
          description: 订单币种
        - $ref: '#/components/parameters/X-GatePay-On-Behalf-Of'
      responses:
        '200':
          description: 成功响应
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SupportedConvertResponse'
              example:
                status: SUCCESS
                code: '000000'
                errorMessage: ''
                data:
                  currencies:
                    - BTC
                    - USD
                    - USDT
                    - ETH
                    - XRP
                    - ZEC
                    - GT
                    - BNB
                    - DOT
                    - SHIB
                    - LION
components:
  parameters:
    X-GatePay-Certificate-ClientId:
      name: X-GatePay-Certificate-ClientId
      in: header
      required: true
      description: 商户客户端ID
      schema:
        type: string
        example: 4186d0c6-6a35-55a9-8dc6-5312769dbff8
    X-GatePay-Signature:
      name: X-GatePay-Signature
      in: header
      required: true
      description: 签名
      schema:
        type: string
        example: 672d5650dcc9bb22ebf25fa16c28d03c0e159d742a9176d4340a5da326d75dc8
    X-GatePay-Timestamp:
      name: X-GatePay-Timestamp
      in: header
      required: true
      description: 时间戳（毫秒）
      schema:
        type: string
        example: '1672905655498'
    X-GatePay-Nonce:
      name: X-GatePay-Nonce
      in: header
      required: true
      description: 随机数
      schema:
        type: string
        example: '9578'
    X-GatePay-On-Behalf-Of:
      name: X-GatePay-On-Behalf-Of
      in: header
      required: true
      schema:
        type: string
      description: >-
        必填代理归属请求头。请填写本次请求的发起方账户 ID；在机构代理商户 API 中通常填写目标子账户 ID，在机构代扣与划转接口中可填写机构账户
        ID 或子账户 ID。
  schemas:
    SupportedConvertResponse:
      type: object
      properties:
        currencies:
          type: array
          description: 支持闪兑的币种列表
          items:
            type: string

````