Blockchain.com Pay Partner API

openapi: 3.0.3
info:
  title: Blockchain.com Pay Partner API
  description: |
    The Partner API enables Blockchain.com Pay partners to integrate crypto purchase flows
    into their backends. It provides eligibility data (currencies, regions, payment methods),
    real-time buy quotes, and order management.

    All endpoints require the `X-Public-API-Key` header to identify the partner.
    Order endpoints additionally require the `X-Private-API-Key` header.
  termsOfService: ''
  license:
    name: ''
    url: ''
  version: '1.0'
servers:
  - url: https://api.blockchain.info/partner-gateway/partner-api
    description: Production
tags:
  - name: Eligibility
    description: Available currencies, regions, and payment methods for the partner account.
  - name: Quote
    description: Real-time buy quotes.
  - name: Orders
    description: Order listing and lookup.
paths:
  /v1/currencies:
    get:
      summary: Get currencies
      description: Returns an array of all currencies enabled on your account. Contact your account executive to customise your account settings.
      operationId: GetCurrencies
      tags:
        - Eligibility
      security:
        - PublicApiKeyAuth: []
        - PrivateApiKeyAuth: []
      responses:
        '200':
          description: List of fiat and crypto currencies available for trading.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Currency'
        '401':
          $ref: '#/components/responses/UnauthorizedError'
  /v1/regions:
    get:
      summary: Get countries and states
      description: Returns an array of all countries and states supported by BcPay.
      operationId: GetRegions
      tags:
        - Eligibility
      security:
        - PublicApiKeyAuth: []
        - PrivateApiKeyAuth: []
      parameters:
        - name: onlyBuyAllowed
          in: query
          description: If true, only returns countries and states where buying is permitted.
          schema:
            type: boolean
            default: true
      responses:
        '200':
          description: Eligible regions.
          content:
            application/json:
              schema:
                type: object
                required:
                  - countries
                  - usStates
                properties:
                  countries:
                    type: array
                    items:
                      $ref: '#/components/schemas/Country'
                  usStates:
                    type: array
                    items:
                      $ref: '#/components/schemas/UsState'
        '401':
          $ref: '#/components/responses/UnauthorizedError'
  /v1/payment-methods:
    get:
      summary: Get payment methods
      description: Returns an array of all payment methods enabled on your account. Contact your account executive to customise your account settings.
      operationId: GetPaymentMethods
      tags:
        - Eligibility
      security:
        - PublicApiKeyAuth: []
        - PrivateApiKeyAuth: []
      responses:
        '200':
          description: List of eligible payment methods and their supported currencies.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/PartnerPaymentMethodResponse'
        '401':
          $ref: '#/components/responses/UnauthorizedError'
  /v1/orders:
    get:
      summary: Get orders
      description: |
        Returns either:
        - A list of recent orders, limited to a maximum of 50 orders, sorted by descending creation date.
        - If `externalReference` is provided, returns all orders matching that reference.
        - If `walletAddress` is provided, returns all orders for that wallet address.
      operationId: ListOrders
      tags:
        - Orders
      security:
        - PrivateApiKeyAuth: []
      parameters:
        - name: limit
          in: query
          description: The number of orders to return. Default and maximum is 50. Ignored when `externalReference` is provided.
          schema:
            type: integer
            default: 50
            maximum: 50
          required: false
          example: 10
        - name: offset
          in: query
          description: The number of orders to skip. Use together with `limit` for pagination.
          schema:
            type: integer
          required: false
          example: 20
        - name: externalReference
          in: query
          description: External reference of the order(s) set by the partner.
          schema:
            type: string
          required: false
          example: external_order_id
        - name: walletAddress
          in: query
          description: User wallet address.
          schema:
            type: string
          required: false
          example: bc1q897va9he4zcppqgp3h7ue8hj7448ra0mr6xqtu
        - name: outputCurrency
          in: query
          description: Filter by output (crypto) currency code.
          required: false
          schema:
            type: string
          example: BTC
        - name: from
          in: query
          description: "Start of the date range, inclusive. Format: `YYYY-MM-DD`."
          schema:
            type: string
            format: date
          required: false
          example: '2024-10-01'
        - name: to
          in: query
          description: "End of the date range, exclusive. Format: `YYYY-MM-DD`."
          schema:
            type: string
            format: date
          required: false
          example: '2024-10-02'
      responses:
        '200':
          description: List of orders.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/PartnerOrderResponse'
        '401':
          $ref: '#/components/responses/UnauthorizedError'
  /v1/orders/{id}:
    get:
      summary: Get order by id
      description: Returns order details for the given order id.
      operationId: GetOrderById
      tags:
        - Orders
      security:
        - PrivateApiKeyAuth: []
      parameters:
        - in: path
          name: id
          description: Unique identifier of the order.
          required: true
          schema:
            type: string
            format: uuid
          example: f41a3e45-6392-457c-8566-a282b5f3e177
      responses:
        '200':
          description: Order details.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PartnerOrderResponse'
        '401':
          $ref: '#/components/responses/UnauthorizedError'
        '404':
          description: Order not found.
  /v1/quote/buy:
    get:
      summary: Get buy quote
      description: |-
        Returns a real-time buy quote for a currency pair.
        Supply `quoteCurrencyCode`, `baseCurrencyCode`, and `quoteCurrencyAmount` (fiat amount) to get a
        detailed buy quote including fees and the amount of crypto the user will receive.
      operationId: GetQuoteBuy
      tags:
        - Quote
      security:
        - PublicApiKeyAuth: []
        - PrivateApiKeyAuth: []
      parameters:
        - name: quoteCurrencyCode
          in: query
          description: The fiat currency to buy with.
          schema:
            type: string
          required: true
          example: USD
        - name: baseCurrencyCode
          in: query
          description: The crypto currency to buy.
          schema:
            type: string
          required: true
          example: BTC
        - name: quoteCurrencyAmount
          in: query
          description: The fiat amount the customer wants to spend. Must be a positive decimal with precision no higher than the currency precision.
          schema:
            type: number
          required: true
          example: "100.00"
        - $ref: '#/components/parameters/PaymentMethodParam'
        - name: countryCode
          in: query
          description: ISO 3166-1 alpha-2 country code, e.g. `US`.
          example: US
          schema:
            type: string
            minLength: 2
            maxLength: 2
        - name: usStateCode
          in: query
          description: US state code, e.g. `AL`. Ignored if `countryCode` is not `US`.
          example: AL
          schema:
            type: string
        - name: walletAddress
          in: query
          description: The wallet address where the user wants to receive the crypto.
          schema:
            type: string
      responses:
        '200':
          description: Buy quote with price, fees, and resulting crypto amount.
          content:
            application/json:
              schema:
                type: object
                required:
                  - quoteCurrencyAmount
                  - quoteCurrencyCode
                  - quoteCurrency
                  - baseCurrencyAmount
                  - baseCurrencyCode
                  - baseCurrency
                  - price
                  - processingFeeAmount
                  - partnerFeeAmount
                  - networkFeeAmount
                  - totalAmount
                properties:
                  quoteCurrencyAmount:
                    type: string
                    description: The fiat amount the user pays for the transaction.
                    example: '63.00'
                  quoteCurrencyCode:
                    type: string
                    description: The fiat currency being spent.
                    example: USD
                  quoteCurrency:
                    description: Details about the quote (fiat) currency.
                    allOf:
                      - $ref: '#/components/schemas/Currency'
                    example:
                      type: FIAT
                      name: US Dollar
                      code: USD
                      precision: 2
                      minBuyAmount: 20.00
                      maxBuyAmount: 1200.00
                  baseCurrencyAmount:
                    type: string
                    description: The amount of crypto converted from `quoteCurrencyAmount` at `price`, before fees. See `totalAmount` for the net amount after fees.
                    example: '0.001'
                  baseCurrencyCode:
                    type: string
                    description: The crypto currency being purchased.
                    example: BTC
                  baseCurrency:
                    description: Details about the base (crypto) currency.
                    allOf:
                      - $ref: '#/components/schemas/Currency'
                    example:
                      type: CRYPTO
                      name: Bitcoin
                      code: BTC
                      precision: 8
                      network: BTC
                      supportsDestinationTag: false
                      isSupportedInUS: true
                      allowedUSStates:
                        - AL
                        - CT
                  price:
                    type: string
                    description: The buy-side price of the base currency denominated in the quote currency.
                    example: '62451.29'
                  processingFeeAmount:
                    type: string
                    description: Blockchain.com processing fee denominated in the quote (fiat) currency.
                    example: '1.00'
                  partnerFeeAmount:
                    type: string
                    description: Partner fee denominated in the quote (fiat) currency.
                    example: '1.00'
                  networkFeeAmount:
                    type: string
                    description: Network (blockchain transaction) fee denominated in the quote (fiat) currency.
                    example: '1.00'
                  totalAmount:
                    type: string
                    description: Net amount of crypto the user receives after all fees.
                    example: '0.0009'
                  paymentMethod:
                    description: Payment method used for the quote. Null if not provided in the request.
                    allOf:
                      - $ref: '#/components/schemas/PaymentMethod'
                    nullable: true
                    example: CARD
        default:
          description: |-
            Returns 400 when:
            1. Any required query parameter is missing.
            2. `baseCurrencyCode` or `quoteCurrencyCode` is not supported.
            3. `baseCurrencyCode` is not of type CRYPTO.
            4. `quoteCurrencyCode` is not of type FIAT.
            5. `baseCurrencyCode` is not allowed for trading in the given `countryCode`.
            6. `baseCurrencyCode` is not allowed for trading in the given `usStateCode`.
            7. `quoteCurrencyCode` is not allowed for any region.
            8. `baseCurrencyCode` is not allowed for any region.

            Returns 422 when:
            1. Fee profile for partner not found.
            2. Quote not available for the requested parameters.
          content:
            application/json:
              schema:
                type: object
                properties:
                  errors:
                    type: array
                    items:
                      $ref: '#/components/schemas/Error'
components:
  schemas:
    Currency:
      type: object
      required:
        - type
        - name
        - code
        - precision
      properties:
        type:
          type: string
          description: Whether this is a fiat or crypto currency.
          enum:
            - FIAT
            - CRYPTO
          example: FIAT
        name:
          type: string
          description: Full name of the currency.
          example: US Dollar
        code:
          type: string
          description: Alphabetical ticker code for the currency. Case sensitive.
          example: USD
        precision:
          type: integer
          description: Number of decimal places supported. For example, BTC has precision 8 (smallest unit 0.00000001 BTC).
          example: 2
        minBuyAmount:
          type: string
          description: Minimum fiat amount allowed per order. Only present for fiat currencies.
          example: '20.00'
        maxBuyAmount:
          type: string
          description: Maximum fiat amount allowed per order. Only present for fiat currencies.
          example: '1200.00'
        network:
          type: string
          description: The blockchain network the currency runs on (e.g. BTC, ETH). Always null for fiat.
          example: BTC
        supportsDestinationTag:
          type: boolean
          description: Whether the currency supports destination tags or memo fields (e.g. XLM, XRP). Always null for fiat.
        isSupportedInUS:
          type: boolean
          description: Whether purchases of this currency are supported in the US. Always null for fiat.
        allowedUSStates:
          type: array
          description: US states where this currency can be purchased, using the last 2 characters of ISO 3166-2:US codes. Always null for fiat.
          items:
            type: string
            minLength: 2
            maxLength: 2
          example:
            - AL
            - CT
    PartnerPaymentMethodResponse:
      type: object
      required:
        - type
        - supportedCurrencies
      properties:
        type:
          allOf:
            - $ref: '#/components/schemas/PaymentMethod'
          description: Payment method type.
        supportedCurrencies:
          type: array
          description: Fiat currency codes supported for this payment method.
          items:
            type: string
      example:
        - type: CARD
          supportedCurrencies:
            - USD
            - GBP
            - EUR
    PaymentMethod:
      type: string
      description: Payment method to be used for the order.
      enum:
        - CARD
        - APPLE_PAY
        - GOOGLE_PAY
        - BANK_TRANSFER_NIP
      example: CARD
    Error:
      type: object
      required:
        - type
        - message
      properties:
        type:
          type: string
          description: Machine-readable error type.
          example: RequestValidation.BadRequest.MissingParam
        message:
          type: string
          description: Human-readable description of the error.
          example: "Missing parameter 'quoteCurrencyCode'. Required params: [quoteCurrencyCode, baseCurrencyCode, quoteCurrencyAmount]"
    Country:
      type: object
      required:
        - alpha2
        - alpha3
        - isBuyAllowed
        - name
      properties:
        alpha2:
          type: string
          description: ISO 3166-1 alpha-2 country code.
          minLength: 2
          maxLength: 2
          example: US
        alpha3:
          type: string
          description: ISO 3166-1 alpha-3 country code.
          minLength: 3
          maxLength: 3
          example: USA
        isBuyAllowed:
          type: boolean
          description: Whether residents of this country can buy cryptocurrencies.
          example: true
        name:
          type: string
          description: Country name in English.
          example: United States
    UsState:
      type: object
      required:
        - alpha2
        - isBuyAllowed
        - name
      properties:
        alpha2:
          type: string
          description: ISO 3166-2:US state code (last 2 characters), e.g. `CA`.
          minLength: 2
          maxLength: 2
          example: CA
        isBuyAllowed:
          type: boolean
          description: Whether residents of this state can buy crypto.
          example: true
        name:
          type: string
          description: State name in English.
          example: California
    PartnerOrderResponse:
      type: object
      required:
        - orderId
        - orderType
        - createdAt
        - orderState
        - orderStateUpdatedAt
        - paymentMethod
        - inputCurrency
        - inputAmount
        - outputCurrency
        - outputAmount
        - amountUsd
        - processingFee
        - processingFeeUsd
        - partnerFee
        - partnerFeeUsd
        - networkFee
        - networkFeeUsd
        - userId
        - targetWalletAddress
      properties:
        orderId:
          type: string
          format: uuid
          description: Unique identifier of the order.
          example: f41a3e45-6392-457c-8566-a282b5f3e177
        externalReference:
          type: string
          description: External order reference set by the partner. Limited to 100 characters.
          example: your_order_id
        subPartnerId:
          type: string
          description: Optional third-party reference set by the partner. Limited to 50 characters.
          example: your_sub_partner_id
        orderType:
          type: string
          enum:
            - BUY
            - SELL
          description: Order direction. BUY for on-ramp, SELL for off-ramp.
          example: BUY
        createdAt:
          type: string
          format: date-time
          description: Timestamp when the order was created.
          example: '2024-10-01T12:00:00Z'
        orderState:
          type: string
          enum:
            - PENDING
            - WITHDRAWING
            - COMPLETED
            - FAILED
          description: Current state of the order.
          example: COMPLETED
        orderStateUpdatedAt:
          type: string
          format: date-time
          description: Timestamp of the last order state change.
          example: '2024-10-01T13:00:00Z'
        paymentMethod:
          allOf:
            - $ref: '#/components/schemas/PaymentMethod'
          description: Payment method used for the order.
          example: CARD
        inputCurrency:
          type: string
          description: Fiat currency used to fund the order.
          example: USD
        inputAmount:
          type: string
          description: Fiat amount used to fund the order.
          example: '100.00'
        outputCurrency:
          type: string
          description: Crypto currency purchased.
          example: BTC
        outputAmount:
          type: string
          description: Amount of crypto received.
          example: '0.001'
        amountUsd:
          type: string
          description: Transaction value in USD. Approximate when `inputCurrency` is not USD.
          example: '100.00'
        processingFee:
          type: string
          description: Blockchain.com Pay processing fee denominated in `inputCurrency`.
          example: '1.00'
        processingFeeUsd:
          type: string
          description: Blockchain.com Pay processing fee in USD. Approximate when `inputCurrency` is not USD.
          example: '1.00'
        partnerFee:
          type: string
          description: Partner fee denominated in `inputCurrency`.
          example: '0.50'
        partnerFeeUsd:
          type: string
          description: Partner fee in USD. Approximate when `inputCurrency` is not USD.
          example: '0.50'
        networkFee:
          type: string
          description: Blockchain network fee denominated in `inputCurrency`.
          example: '1.50'
        networkFeeUsd:
          type: string
          description: Blockchain network fee in USD. Approximate when `inputCurrency` is not USD.
          example: '1.50'
        userId:
          type: string
          format: uuid
          description: Unique identifier of the user who placed the order.
          example: 2b6f0cc9-7b0c-4f3b-8f3b-6f0cc97b0c4f
        targetWalletAddress:
          type: string
          description: Crypto wallet address that received the output currency.
          example: bc1q897va9he4zcppqgp3h7ue8hj7448ra0mr6xqtu
        transactionHash:
          type: string
          description: Blockchain transaction hash. Only present for COMPLETED orders.
          example: 4b1549abe58cface17d400bf50ff0fe0c2e2ca8121f4e3764d807dc841a2ab80
  securitySchemes:
    PublicApiKeyAuth:
      type: apiKey
      in: header
      name: X-Public-API-Key
      description: Partner's public API key. Required on all endpoints to identify the partner.
    PrivateApiKeyAuth:
      type: apiKey
      in: header
      name: X-Private-API-Key
      description: Partner's private API key. Required on order endpoints; indicates a server-to-server call.
  responses:
    UnauthorizedError:
      description: Missing or invalid API key.
      content:
        application/json:
          schema:
            type: object
            properties:
              errors:
                type: array
                items:
                  $ref: '#/components/schemas/Error'
  parameters:
    PaymentMethodParam:
      in: query
      name: paymentMethod
      required: false
      description: Payment method to be used for the order. If omitted, the quote will not factor in payment method fees.
      schema:
        $ref: '#/components/schemas/PaymentMethod'