AnyAPI Balance API

openapi: 3.2.0
info:
  contact:
    email: support@getanyapi.com
  description: 'Any API, one wallet, USD, no subscriptions. Each API is a single discovered operation: send the normalized input, get a normalized result. Prices and payment outcomes are reported in USD; each operation documents the settlement policy for its enabled payment rails.'
  title: Any Balance API
  version: 1.0.0
  x-guidance: 'Use each operation''s published method and path with its normalized JSON input (see the operation requestBody). Before setting a client or tool timeout, GET /v1/apis/{sku} and inspect its trailing-30-day latency p50/p95/p99 and sample; p99 is an observation, not a maximum. To pay: send your AnyAPI key (Authorization: Bearer, billed from your USD wallet). For operations that advertise an inline rail, pay per call inline with x402 - call with no key, receive HTTP 402 with a PAYMENT-REQUIRED header, then retry with the PAYMENT-SIGNATURE header (base, no account needed); or pay per call inline with MPP (Machine Payments Protocol) - call with no key, receive HTTP 402 with a WWW-Authenticate: Payment challenge, then retry with the Authorization: Payment header (tempo, no account needed). x402 settles after execution; execution failure is reported as released; mpp settles before execution; execution failure is reported as charged_undelivered.'
servers:
- url: https://api.getanyapi.com
security:
- bearerAuth: []
- apiKeyAuth: []
tags:
- name: Balance
paths:
  /v1/balance:
    get:
      description: 'Remaining USD in the wallet behind your API key. Reading the balance is free. The amount is what is left to spend across all APIs, not a per-request price: compare it against an operation''s own USD cost before you run one.'
      operationId: getBalance
      responses:
        '200':
          content:
            application/json:
              schema:
                properties:
                  usd:
                    description: Remaining wallet balance in USD.
                    type: number
                required:
                - usd
                type: object
          description: Current wallet balance.
        '401':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
          description: Missing or invalid API key.
      summary: Get your wallet balance
      tags:
      - Balance
components:
  schemas:
    Error:
      properties:
        code:
          description: Stable machine-readable error code when the endpoint defines one.
          type: string
        error:
          description: Customer-safe error message.
          type: string
        payment:
          $ref: '#/components/schemas/Payment'
        requestId:
          description: This run's AnyAPI request id, the same value as the X-Anyapi-Request-Id response header. Quote it to support. Absent on endpoints that do not execute a run.
          format: uuid
          type: string
      required:
      - error
      type: object
    Payment:
      properties:
        costUsd:
          description: Known USD payment amount for this request.
          minimum: 0
          type: number
        rail:
          minLength: 1
          type: string
        settlementState:
          enum:
          - charged_undelivered
          - indeterminate
          type: string
      required:
      - rail
      - settlementState
      - costUsd
      type: object
  securitySchemes:
    apiKeyAuth:
      description: Your AnyAPI key.
      in: header
      name: X-API-Key
      type: apiKey
      x-default: YOUR_ANYAPI_KEY
    bearerAuth:
      description: Your AnyAPI key as a Bearer token.
      scheme: bearer
      type: http
      x-default: YOUR_ANYAPI_KEY