Coins.ph ON/OFF Ramp API

openapi: 3.0.0
info:
  title: TRADING Account ON/OFF Ramp API
  version: 1.0.0
  description: API reference for Account management — Coins.ph
servers:
- url: https://api.pro.coins.ph
  description: Production
- url: https://api.9001.pl-qa.coinsxyz.me
  description: Sandbox
tags:
- name: ON/OFF Ramp
  description: Fiat-to-crypto and crypto-to-fiat ramp operations
paths:
  /openapi/ramp/v1/paymentConfigurations:
    post:
      tags:
      - ON/OFF Ramp
      summary: Ramp Get Payment Configurations
      description: Returns a list of supported token pairs and network information for a given ramp type and country.
      operationId: getRampPaymentConfigurations
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - rampType
              - country
              properties:
                rampType:
                  type: string
                  enum:
                  - ON_RAMP
                  - OFF_RAMP
                  description: ON_RAMP for fiat-to-crypto, OFF_RAMP for crypto-to-fiat.
                country:
                  type: string
                  description: Country code.
                  example: PH
                toToken:
                  type: string
                  description: Target token symbol. Applicable when rampType is ON_RAMP.
                  example: USDT
                fromToken:
                  type: string
                  description: Source token symbol. Applicable when rampType is OFF_RAMP.
                  example: USDT
      responses:
        '200':
          description: Successful response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/RampPaymentConfigResponse'
      parameters:
      - name: recvWindow
        in: query
        required: false
        schema:
          type: integer
          format: int64
        description: Validity duration of the request in milliseconds after the timestamp.
  /openapi/ramp/v1/trialPrice:
    post:
      tags:
      - ON/OFF Ramp
      summary: Ramp Trial Price
      description: Returns a price estimation for a ramp transaction. This is a trial quote and does not create a persistent quote record.
      operationId: getRampTrialPrice
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - rampType
              - country
              - sourceCurrency
              - targetCurrency
              - network
              - address
              properties:
                rampType:
                  type: string
                  enum:
                  - ON_RAMP
                  - OFF_RAMP
                country:
                  type: string
                  example: PH
                sourceCurrency:
                  type: string
                  description: The currency that the merchant holds.
                  example: PHP
                targetCurrency:
                  type: string
                  description: The currency that the merchant wishes to obtain.
                  example: USDT
                sourceAmount:
                  type: string
                  description: Amount to convert from. targetAmount must not be filled when this is filled.
                  example: '5000'
                targetAmount:
                  type: string
                  description: Amount to convert to. sourceAmount must not be filled when this is filled.
                  example: '84.68'
                network:
                  type: string
                  description: Blockchain network (e.g., ETHEREUM, SOLANA, BSC, POLYGON, BASE).
                  example: ETHEREUM
                address:
                  type: string
                  description: Target wallet address.
                  example: '0x1234567890abcdef1234567890abcdef12345678'
      responses:
        '200':
          description: Successful response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/RampTrialPriceResponse'
      parameters:
      - name: recvWindow
        in: query
        required: false
        schema:
          type: integer
          format: int64
        description: Validity duration of the request in milliseconds after the timestamp.
  /openapi/ramp/v1/confirmOnChainFunding:
    post:
      tags:
      - ON/OFF Ramp
      summary: Ramp Confirm On-Chain Funding
      description: After the merchant completes the on-chain crypto transfer (for OFF_RAMP), call this endpoint to confirm the funding and provide the transaction ID.
      operationId: confirmOnChainFunding
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - quoteId
              - txId
              properties:
                quoteId:
                  type: string
                  description: The quote ID associated with this transaction.
                  example: QT202604210001
                txId:
                  type: string
                  description: The on-chain transaction ID (hash) of the crypto transfer.
                  example: '0xabc123def456789abcdef123456789abcdef1234567890abcdef1234567890ab'
                remark:
                  type: string
                  description: Optional remark or memo.
                  maxLength: 256
      responses:
        '200':
          description: Successful response
          content:
            application/json:
              schema:
                type: object
                properties:
                  code:
                    type: string
                    example: '000000'
                  message:
                    type: string
                    example: success
                  data:
                    type: boolean
                    example: true
      parameters:
      - name: recvWindow
        in: query
        required: false
        schema:
          type: integer
          format: int64
        description: Validity duration of the request in milliseconds after the timestamp.
  /openapi/ramp/v1/orderDetail:
    post:
      tags:
      - ON/OFF Ramp
      summary: Ramp Get Order Detail
      description: Returns the detail and current status of a specific order.
      operationId: getRampOrderDetail
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - orderId
              properties:
                orderId:
                  type: string
                  description: The order ID to query.
                  example: 21378276707306408966convert
      responses:
        '200':
          description: Successful response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/RampOrderDetailResponse'
      parameters:
      - name: recvWindow
        in: query
        required: false
        schema:
          type: integer
          format: int64
        description: Validity duration of the request in milliseconds after the timestamp.
  /openapi/ramp/outbound/initOnChainFund:
    post:
      tags:
      - ON/OFF Ramp
      summary: Ramp Init On-Chain Fund
      description: Notify merchant to prepare on-chain fund transfer. The gateway will forward the request to the merchant's webhook URL with HMAC signature headers, and return the merchant's response containing a deposit ID.
      operationId: initOnChainFund
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - quoteId
              - webhookUrl
              properties:
                quoteId:
                  type: string
                  description: The quote identifier for this on-chain fund request.
                  example: QT20260427000001
                  minLength: 1
                  maxLength: 128
                webhookUrl:
                  type: string
                  description: Merchant webhook URL to receive the notification.
                  example: https://merchant.example.com/callback/onchain
                  minLength: 1
                  maxLength: 512
                callbackKey:
                  type: string
                  description: API key for HMAC signature verification. If blank, signature is skipped.
                  example: ak_xxxxxxxx
                  maxLength: 128
                merchantId:
                  type: string
                  description: Merchant user ID used for signature context. Required when callbackKey is provided.
                  example: '100001'
                  maxLength: 64
      responses:
        '200':
          description: Successful response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/InitOnChainFundResponse'
              examples:
                success:
                  summary: Successful response
                  value:
                    code: '000000'
                    message: success
                    data:
                      depositId: DEP20260427000001
                      errorCode: null
                      errorMessage: null
                error:
                  summary: Error response
                  value:
                    code: '500'
                    message: InitOnChainFund callback failed
                    data: null
      parameters:
      - name: recvWindow
        in: query
        required: false
        schema:
          type: integer
          format: int64
        description: Validity duration of the request in milliseconds after the timestamp.
components:
  schemas:
    OnRampTokenPair:
      type: object
      properties:
        toToken:
          type: string
        fromToken:
          type: string
        fromTokenIcon:
          type: string
        toTokenIcon:
          type: string
        balance:
          type: string
        fromTokenName:
          type: string
        toTokenName:
          type: string
        limits:
          type: object
          properties:
            perOrder:
              type: object
              properties:
                toTokenAmount:
                  $ref: '#/components/schemas/AmountLimit'
                fromTokenAmount:
                  $ref: '#/components/schemas/AmountLimit'
    RampOrderDetailResponse:
      type: object
      properties:
        code:
          type: string
          example: '000000'
        message:
          type: string
          example: success
        data:
          type: object
          properties:
            status:
              type: string
              enum:
              - CREATE
              - PROCESSING
              - SUCCEEDED
              - FAILED
              - CANCELLED
              - REFUNDED
              - EXPIRED
              - MANUAL_REVIEW
            orderId:
              type: string
            sourceCurrency:
              type: string
            targetCurrency:
              type: string
            sourceAmount:
              type: string
            targetAmount:
              type: string
            orderCreatedTime:
              type: integer
              format: int64
            fee:
              type: string
            pollingInterval:
              type: integer
              format: int64
              description: Recommended polling interval in milliseconds.
            maxPollingCount:
              type: integer
              description: Maximum number of polling attempts.
    AmountLimit:
      type: object
      properties:
        min:
          type: string
        max:
          type: string
        precision:
          type: integer
    OffRampTokenPair:
      type: object
      properties:
        fromToken:
          type: string
        toToken:
          type: string
        fromTokenIcon:
          type: string
        toTokenIcon:
          type: string
        fromTokenName:
          type: string
        toTokenName:
          type: string
        limits:
          type: object
          properties:
            perOrder:
              type: object
              properties:
                fromToken:
                  $ref: '#/components/schemas/AmountLimit'
                toToken:
                  $ref: '#/components/schemas/AmountLimit'
    RampPaymentConfigResponse:
      type: object
      properties:
        code:
          type: string
          example: '000000'
        message:
          type: string
          example: success
        data:
          type: object
          properties:
            supportedNetworksByToken:
              type: object
              additionalProperties:
                type: object
                properties:
                  networks:
                    type: array
                    items:
                      type: string
            onRampFormTokenList:
              type: array
              nullable: true
              items:
                $ref: '#/components/schemas/OnRampTokenPair'
            offRampToTokenList:
              type: array
              nullable: true
              items:
                $ref: '#/components/schemas/OffRampTokenPair'
    RampTrialPriceResponse:
      type: object
      properties:
        code:
          type: string
          example: '000000'
        message:
          type: string
          example: success
        data:
          type: object
          properties:
            sourceCurrency:
              type: string
            targetCurrency:
              type: string
            sourceAmount:
              type: string
            targetAmount:
              type: string
            price:
              type: string
            fee:
              type: string
            feeCurrency:
              type: string
            resultAmount:
              type: string
            totalCostAmount:
              type: string
            expiry:
              type: integer
              description: Validity of the quote in seconds.
            inversePrice:
              type: string
            expiryTime:
              type: integer
              format: int64
              description: Quote expiry timestamp (epoch millis).
    InitOnChainFundResponse:
      type: object
      properties:
        code:
          type: string
          example: '000000'
        message:
          type: string
          example: success
        data:
          type: object
          nullable: true
          properties:
            depositId:
              type: string
              description: Deposit identifier returned by the merchant.
              example: DEP20260427000001
            errorCode:
              type: string
              nullable: true
              description: Error code returned by the merchant (if any).
              example: INVALID_QUOTE
            errorMessage:
              type: string
              nullable: true
              description: Error message returned by the merchant (if any).
              example: Quote has expired
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: X-COINS-APIKEY
x-readme:
  proxy-enabled: false