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OpenAPI Specification
openapi: 3.2.0
info:
title: OpenNode Account 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: Account
description: Account balance and transaction activity
paths:
/v1/account/balance:
get:
operationId: getAccountBalance
summary: Get account balance
description: Retrieves the current balance for the authenticated merchant account, including Bitcoin and fiat holdings.
tags:
- Account
responses:
'200':
description: Account balance
content:
application/json:
schema:
$ref: '#/components/schemas/AccountBalanceResponse'
'401':
description: Unauthorized
content:
application/json:
schema:
$ref: '#/components/schemas/ErrorResponse'
components:
schemas:
AccountBalanceResponse:
type: object
properties:
data:
type: object
properties:
balance:
$ref: '#/components/schemas/Balance'
ErrorResponse:
type: object
properties:
message:
type: string
description: Human-readable error message.
example: Invalid API key
code:
type: integer
description: Error code.
example: 401
Balance:
type: object
properties:
BTC:
type: object
properties:
balance:
type: number
description: Available Bitcoin balance in satoshis.
pending_balance:
type: number
description: Pending Bitcoin balance in satoshis.
USD:
type: object
properties:
balance:
type: number
description: Available fiat balance (example in USD).
pending_balance:
type: number
description: Pending fiat balance.
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).
'