> ## 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.

# Query Supported Convert Pairs

> Query available currency pairs.

## Overview

This page documents the `GET /v1/pay/convert/pair` endpoint. The full schema, parameters, and examples are rendered from the linked OpenAPI definition above.

## Notes

* Authentication uses the standard GatePay signed headers.
* This page documents the standard merchant endpoint.
* For shared signing rules, see [/api-reference/version/100/en/common/securityAndSignature](/api-reference/version/100/en/common/securityAndSignature).


## OpenAPI

````yaml /api-reference/version/100/en/openapi/convert-openapi.json GET /v1/pay/convert/pair
openapi: 3.1.0
info:
  title: GatePay Balance Account Convert API
  description: >-
    Provides an API for direct convert from the balance account, avoiding the
    need for users to first transfer to the spot account.
  version: 1.0.0
servers:
  - url: https://openplatform.gateapi.io
security: []
paths:
  /v1/pay/convert/pair:
    get:
      summary: Query Available Currency Pairs
      description: Query available currency pairs.
      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: side
          in: query
          required: false
          description: Trade direction ("buy" or "sell")
          schema:
            type: string
            enum:
              - buy
              - sell
            example: buy
        - name: currency
          in: query
          required: true
          description: Currency
          schema:
            type: string
            example: GT
      responses:
        '200':
          description: Success
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PairListResponse'
              examples:
                success:
                  summary: Success response
                  value:
                    status: SUCCESS
                    code: '000000'
                    errorMessage: ''
                    data:
                      - pair: BTC_USDT
                        sellCurrency: BTC
                        sellCurrencyMax: '31'
                        sellCurrencyMin: '0.0002'
                        buyCurrency: USDT
                        buyCurrencyMax: '1980000'
                        buyCurrencyMin: '12'
                      - pair: BNB_USDT
                        sellCurrency: BNB
                        sellCurrencyMax: '410'
                        sellCurrencyMin: '0.1'
                        buyCurrency: USDT
                        buyCurrencyMax: '100000'
                        buyCurrencyMin: '10'
components:
  parameters:
    X-GatePay-Certificate-ClientId:
      name: X-GatePay-Certificate-ClientId
      in: header
      required: true
      description: Merchant client ID assigned when registering the application
      schema:
        type: string
        example: mZ96D37oKk-HrWJc
    X-GatePay-Signature:
      name: X-GatePay-Signature
      in: header
      required: true
      description: Request signature for verification
      schema:
        type: string
        example: >-
          8504fe097f7297f8952c76e628ce59dbc93d1df64c95f26c73140ef365d4aa1471826ada0534315461682ec35c131d7e133c51d2ab0822fe7366650a111887ba
    X-GatePay-Timestamp:
      name: X-GatePay-Timestamp
      in: header
      required: true
      description: UTC timestamp in milliseconds
      schema:
        type: string
        example: '1740019013818'
    X-GatePay-Nonce:
      name: X-GatePay-Nonce
      in: header
      required: true
      description: Random string, recommended length within 32 characters
      schema:
        type: string
        example: '9722139164'
  schemas:
    PairListResponse:
      type: object
      properties:
        status:
          type: string
          description: SUCCESS or FAIL
        code:
          type: string
          description: Error code
        errorMessage:
          type: string
          description: Error message
        data:
          type: array
          items:
            $ref: '#/components/schemas/PairItem'
    PairItem:
      type: object
      properties:
        pair:
          type: string
          description: Currency pair
        sellCurrency:
          type: string
          description: Sell currency
        buyCurrency:
          type: string
          description: Buy currency
        sellCurrencyMax:
          type: string
          description: Sell currency max amount
        sellCurrencyMin:
          type: string
          description: Sell currency min amount
        buyCurrencyMax:
          type: string
          description: Buy currency max amount
        buyCurrencyMin:
          type: string
          description: Buy currency min amount

````