send21-io Checkout API

The Checkout API from send21-io — 3 operation(s) for checkout.

Operations 3

GET /api/v1/checkout/{token} Get api checkout by token #
POST /api/v1/checkout/{token}/select Create api checkout by token select #
GET /api/v1/checkout/{token}/status Get api checkout by token status #

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OpenAPI Specification

send21-io-checkout-api-openapi.yml Raw ↑
openapi: 3.2.0
info:
  title: Send21 Io Checkout API
  version: v1
  contact:
    name: send21 integration support
    email: integration@send21.io
  description: 'Operations tagged Checkout across 2 of this provider''s published API definitions: send21-io-openapi.json, swagger.json. Each path carries the servers of the definition it was published in.'
servers:
- url: https://send21.io
security:
- ApiKey: []
tags:
- name: Checkout
paths:
  /api/v1/checkout/{token}:
    get:
      tags:
      - Checkout
      parameters:
      - name: token
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: OK
          content:
            text/plain:
              schema:
                $ref: '#/components/schemas/CheckoutInfoResponse'
            application/json:
              schema:
                $ref: '#/components/schemas/CheckoutInfoResponse'
            text/json:
              schema:
                $ref: '#/components/schemas/CheckoutInfoResponse'
        '404':
          description: Not Found
          content:
            text/plain:
              schema:
                $ref: '#/components/schemas/ProblemDetails'
            application/json:
              schema:
                $ref: '#/components/schemas/ProblemDetails'
            text/json:
              schema:
                $ref: '#/components/schemas/ProblemDetails'
      summary: Get api checkout by token
      x-summary-source: derived
      operationId: getApiV1CheckoutByToken
      x-operation-id-source: derived
    servers:
    - url: https://send21.io
  /api/v1/checkout/{token}/select:
    post:
      tags:
      - Checkout
      parameters:
      - name: token
        in: path
        required: true
        schema:
          type: string
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CheckoutSelectRequest'
          text/json:
            schema:
              $ref: '#/components/schemas/CheckoutSelectRequest'
          application/*+json:
            schema:
              $ref: '#/components/schemas/CheckoutSelectRequest'
      responses:
        '200':
          description: OK
          content:
            text/plain:
              schema:
                $ref: '#/components/schemas/CheckoutInfoResponse'
            application/json:
              schema:
                $ref: '#/components/schemas/CheckoutInfoResponse'
            text/json:
              schema:
                $ref: '#/components/schemas/CheckoutInfoResponse'
      summary: Create api checkout by token select
      x-summary-source: derived
      operationId: postApiV1CheckoutByTokenSelect
      x-operation-id-source: derived
    servers:
    - url: https://send21.io
  /api/v1/checkout/{token}/status:
    get:
      tags:
      - Checkout
      parameters:
      - name: token
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: OK
          content:
            text/plain:
              schema:
                $ref: '#/components/schemas/CheckoutStatusResponse'
            application/json:
              schema:
                $ref: '#/components/schemas/CheckoutStatusResponse'
            text/json:
              schema:
                $ref: '#/components/schemas/CheckoutStatusResponse'
        '404':
          description: Not Found
          content:
            text/plain:
              schema:
                $ref: '#/components/schemas/ProblemDetails'
            application/json:
              schema:
                $ref: '#/components/schemas/ProblemDetails'
            text/json:
              schema:
                $ref: '#/components/schemas/ProblemDetails'
      summary: Get api checkout by token status
      x-summary-source: derived
      operationId: getApiV1CheckoutByTokenStatus
      x-operation-id-source: derived
    servers:
    - url: https://send21.io
components:
  schemas:
    CheckoutStatusResponse:
      type: object
      properties:
        status:
          $ref: '#/components/schemas/PaymentRequestStatus'
        draftStatus:
          $ref: '#/components/schemas/DraftStatus'
        paidTxId:
          type:
          - string
          - 'null'
        confirmations:
          type: integer
          format: int32
        amountDiffers:
          type: boolean
        reviewState:
          type:
          - string
          - 'null'
      additionalProperties: false
    PaymentNetwork:
      enum:
      - Mainnet
      - Testnet4
      - Signet
      - Regtest
      - Solana
      - SolanaDevnet
      - Ethereum
      - EthereumSepolia
      - Base
      - BaseSepolia
      - Arbitrum
      - ArbitrumSepolia
      - Polygon
      - PolygonAmoy
      type: string
    CheckoutSelectRequest:
      type: object
      properties:
        currency:
          $ref: '#/components/schemas/PaymentCurrency'
        network:
          $ref: '#/components/schemas/PaymentNetwork'
        method:
          $ref: '#/components/schemas/PaymentMethod'
      additionalProperties: false
    CheckoutOptionInfo:
      type: object
      properties:
        currency:
          $ref: '#/components/schemas/PaymentCurrency'
        network:
          $ref: '#/components/schemas/PaymentNetwork'
        method:
          $ref: '#/components/schemas/PaymentMethod'
        changeSignals:
          type:
          - array
          - 'null'
          items:
            type: string
        changeNotes:
          type:
          - array
          - 'null'
          items:
            type: string
      additionalProperties: false
    PaymentMethod:
      enum:
      - MultiOutput
      - Lightning
      type: string
    CheckoutInfoResponse:
      type: object
      properties:
        token:
          type:
          - string
          - 'null'
        fiatCurrency:
          type:
          - string
          - 'null'
        fiatAmount:
          type: number
          format: double
        memo:
          type:
          - string
          - 'null'
        status:
          $ref: '#/components/schemas/PaymentRequestStatus'
        expiresAt:
          type: string
          format: date-time
        options:
          type:
          - array
          - 'null'
          items:
            $ref: '#/components/schemas/CheckoutOptionInfo'
        payment:
          $ref: '#/components/schemas/CheckoutPaymentInfo'
        declineNote:
          type:
          - string
          - 'null'
        changeSignals:
          type:
          - array
          - 'null'
          items:
            type: string
        changeNotes:
          type:
          - array
          - 'null'
          items:
            type: string
        receiver:
          $ref: '#/components/schemas/ReceiverHistory'
      additionalProperties: false
    DraftStatus:
      enum:
      - AwaitingPayment
      - Seen
      - Confirmed
      - Expired
      - Cancelled
      type: string
    CheckoutPaymentInfo:
      type: object
      properties:
        currency:
          $ref: '#/components/schemas/PaymentCurrency'
        network:
          $ref: '#/components/schemas/PaymentNetwork'
        address:
          type:
          - string
          - 'null'
        amountBaseUnits:
          type: integer
          format: int64
        amountFormatted:
          type:
          - string
          - 'null'
        uri:
          type:
          - string
          - 'null'
        tokenAddress:
          type:
          - string
          - 'null'
        status:
          $ref: '#/components/schemas/DraftStatus'
        rate:
          type: number
          format: double
        rateSource:
          type:
          - string
          - 'null'
        rateLockedUntil:
          type: string
          format: date-time
        paidTxId:
          type:
          - string
          - 'null'
        receivedAmountFormatted:
          type:
          - string
          - 'null'
        method:
          $ref: '#/components/schemas/PaymentMethod'
        lightningConfirmable:
          type: boolean
        quoteId:
          type:
          - string
          - 'null'
          format: uuid
        draftId:
          type:
          - string
          - 'null'
          format: uuid
        reviewState:
          type:
          - string
          - 'null'
        reviewReason:
          type:
          - string
          - 'null'
        coreSha256:
          type:
          - string
          - 'null'
      additionalProperties: false
    ProblemDetails:
      type: object
      properties:
        type:
          type:
          - string
          - 'null'
        title:
          type:
          - string
          - 'null'
        status:
          type:
          - integer
          - 'null'
          format: int32
        detail:
          type:
          - string
          - 'null'
        instance:
          type:
          - string
          - 'null'
      additionalProperties: {}
    ReceiverHistory:
      type: object
      properties:
        joinedMonth:
          type:
          - string
          - 'null'
        completedPayments:
          type:
          - string
          - 'null'
        isNew:
          type: boolean
      additionalProperties: false
    PaymentRequestStatus:
      enum:
      - Open
      - Completed
      - Cancelled
      - Expired
      type: string
    PaymentCurrency:
      enum:
      - Btc
      - Usdc
      - Usdt
      - Eurc
      - Sol
      - Eth
      type: string
  securitySchemes:
    ApiKey:
      type: http
      description: 'AI-agent API key (Authorization: Bearer s21_...). Humans use passkey session cookies instead.'
      scheme: bearer
      bearerFormat: s21_...
x-refined-from:
- send21-io-openapi.json
- swagger.json