OpenNode Withdrawals API

openapi: 3.2.0
info:
  title: OpenNode Account Withdrawals API
  description: 'OpenNode is a Bitcoin and Lightning Network payment processor providing a REST API for businesses and developers to accept Bitcoin payments, create payment charges, manage Lightning Network invoices, process on-chain transactions, handle webhooks for real-time payment notifications, initiate Bitcoin withdrawals and payouts, and access payment analytics. The platform supports automatic currency conversion at the time of payment, allowing merchants to settle in local currency or Bitcoin.

    '
  version: 1.0.0
  termsOfService: https://opennode.com/terms/
  contact:
    name: OpenNode Support
    url: https://opennode.com/
  license:
    name: Proprietary
servers:
- url: https://api.opennode.com
  description: Production server
- url: https://app.dev.opennode.com
  description: Development/sandbox server
security:
- ApiKeyAuth: []
tags:
- name: Withdrawals
  description: Initiate Bitcoin withdrawals and payouts
paths:
  /v2/withdrawals:
    post:
      operationId: initiateWithdrawal
      summary: Initiate a withdrawal
      description: 'Initiates a Bitcoin withdrawal to an on-chain address or pays a Lightning Network invoice. Supports LNURL withdrawals for streamlined Lightning payouts.

        '
      tags:
      - Withdrawals
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/WithdrawalRequest'
            example:
              type: ln
              amount: 5000
              address: lnbc50u1p3zqvppsp...
              callback_url: https://example.com/webhooks/withdrawal
      responses:
        '200':
          description: Withdrawal successfully initiated
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/WithdrawalResponse'
        '400':
          description: Bad request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
    get:
      operationId: listWithdrawals
      summary: List withdrawals
      description: Returns a list of all withdrawals for the authenticated merchant account.
      tags:
      - Withdrawals
      responses:
        '200':
          description: List of withdrawals
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/WithdrawalListResponse'
  /v2/withdrawal/{id}:
    get:
      operationId: getWithdrawal
      summary: Get a withdrawal
      description: Retrieves the details of an existing withdrawal by its ID.
      tags:
      - Withdrawals
      parameters:
      - name: id
        in: path
        required: true
        schema:
          type: string
        description: Unique withdrawal identifier
      responses:
        '200':
          description: Withdrawal details
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/WithdrawalResponse'
        '404':
          description: Withdrawal not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
components:
  schemas:
    Withdrawal:
      type: object
      properties:
        id:
          type: string
          description: Unique withdrawal identifier.
        type:
          type: string
          enum:
          - chain
          - ln
          description: Withdrawal type.
        amount:
          type: integer
          description: Withdrawal amount in satoshis.
        status:
          type: string
          enum:
          - pending
          - processing
          - confirmed
          - failed
          description: Current status of the withdrawal.
        address:
          type: string
          description: Destination address.
        fee:
          type: integer
          description: Network fee in satoshis.
        created_at:
          type: integer
          format: int64
          description: Unix timestamp of withdrawal creation.
        processed_at:
          type: integer
          format: int64
          description: Unix timestamp when the withdrawal was processed.
    WithdrawalRequest:
      type: object
      required:
      - type
      - amount
      - address
      properties:
        type:
          type: string
          enum:
          - chain
          - ln
          description: Withdrawal type — `chain` for on-chain Bitcoin, `ln` for Lightning Network.
          example: ln
        amount:
          type: integer
          format: int32
          description: Withdrawal amount in satoshis.
          example: 5000
        address:
          type: string
          description: Destination Bitcoin address (on-chain) or BOLT11 Lightning invoice (ln).
          example: lnbc50u1p3zqvpp...
        callback_url:
          type: string
          format: uri
          description: Webhook endpoint for withdrawal status notifications.
    ErrorResponse:
      type: object
      properties:
        message:
          type: string
          description: Human-readable error message.
          example: Invalid API key
        code:
          type: integer
          description: Error code.
          example: 401
    WithdrawalListResponse:
      type: object
      properties:
        data:
          type: array
          items:
            $ref: '#/components/schemas/Withdrawal'
    WithdrawalResponse:
      type: object
      properties:
        data:
          $ref: '#/components/schemas/Withdrawal'
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: Authorization
      description: 'API key obtained from the OpenNode dashboard. Pass the key directly in the Authorization header (no "Bearer" prefix required).

        '