> ## Documentation Index
> Fetch the complete documentation index at: https://invoiceapi.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Get 



## OpenAPI

````yaml /api-reference/openapi.json get /
openapi: 3.1.0
info:
  title: Invoice API
  description: >-
    Mexican CFDI 4.0 invoicing API. Versioned via the Invoice-Version header;
    current: 2026-07-15. See GET /v1/versions.
  version: 0.1.0
servers:
  - url: /
    description: this server
security:
  - bearerAuth: []
tags:
  - name: api_keys
    description: Platform API-key lifecycle (create, list, revoke)
  - name: accounts
    description: 'Connect: platform-owned connected accounts (multi-tenant)'
  - name: fiscal_profiles
    description: Emitter RFC + CSD/FIEL registration
  - name: invoices
    description: Create, stamp, cancel CFDI 4.0 invoices
  - name: validations
    description: Validate arbitrary CFDI XML
  - name: downloads
    description: SAT descarga masiva jobs
  - name: webhook_endpoints
    description: HMAC-signed event delivery
  - name: events
    description: Event log
  - name: balance
    description: Remaining stamp credits
  - name: usage
    description: Metered usage records (stamps consumed)
  - name: catalogs
    description: SAT reference catalogs (uso CFDI, payment forms/methods, tax regimes, …)
  - name: docs
    description: Served documentation (error catalog + guides)
paths: {}
components:
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: 'API key: `Authorization: Bearer sk_test_...` or `sk_live_...`.'

````