aid: fonoa
name: Fonoa
description: >
  Fonoa is a global indirect tax automation platform that connects the full indirect tax
  lifecycle on one platform, serving enterprises across 100+ countries and jurisdictions.
  The platform provides APIs for real-time tax ID validation across 120+ countries, VAT/GST
  and sales tax calculation, e-invoicing compliance with local mandates, transaction reporting,
  and automated multi-country tax return filing. Companies such as Zoom, Uber, Booking.com,
  and Remote.com rely on Fonoa to automate and manage their global indirect tax obligations
  through a single API integration.
type: Index
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
tags:
  - Tax
  - VAT
  - GST
  - E-Invoicing
  - Tax Automation
  - Tax Compliance
  - Tax Calculation
  - Tax ID Validation
  - Invoice Generation
  - Global Tax
  - Indirect Tax
  - FinTech
url: https://raw.githubusercontent.com/api-evangelist/fonoa/refs/heads/main/apis.yml
created: '2026-06-12'
modified: '2026-06-12'
specificationVersion: '0.19'
apis:
  - aid: fonoa:validate-api
    name: Fonoa Validate API
    description: >
      Tax Identification Number (TIN) validation API supporting instant lookups and batch
      validation across 120+ countries. Enables real-time VAT/GST ID verification, TIN
      search by business name, result polling, and cancellation of pending validations.
    humanURL: https://docs.fonoa.com/reference/instant-lookup
    baseURL: https://api.fonoa.com/validate
    tags:
      - Tax ID Validation
      - VAT
      - TIN
      - Batch Validation
    properties:
      - type: Documentation
        url: https://docs.fonoa.com/reference/instant-lookup
      - type: OpenAPI
        url: openapi/fonoa-validate-openapi.yml

  - aid: fonoa:tax-engine-api
    name: Fonoa Tax Engine API
    description: >
      Tax calculation API that determines applicable VAT, GST, and sales tax rates for
      transactions across 100+ jurisdictions. Supports B2C and marketplace scenarios with
      real-time tax determination and the ability to view and commit calculations.
    humanURL: https://docs.fonoa.com/reference/welcome-to-fonoa
    baseURL: https://api.fonoa.com/tax
    tags:
      - Tax Calculation
      - VAT
      - GST
      - Sales Tax
    properties:
      - type: Documentation
        url: https://docs.fonoa.com/reference/welcome-to-fonoa
      - type: OpenAPI
        url: openapi/fonoa-tax-engine-openapi.yml

  - aid: fonoa:e-invoicing-api
    name: Fonoa E-Invoicing API
    description: >
      Unified e-invoicing API that manages the full transaction lifecycle including submitting,
      adjusting, crediting, and canceling e-invoices in compliance with local mandates across
      multiple countries. Supports backfilling previously reported transactions and retrieving
      transaction history and status.
    humanURL: https://www.fonoa.com/platform/e-invoicing
    baseURL: https://api.fonoa.com/invoicing
    tags:
      - E-Invoicing
      - Invoice Generation
      - Tax Compliance
      - Digital Reporting
    properties:
      - type: Documentation
        url: https://www.fonoa.com/platform/e-invoicing
      - type: OpenAPI
        url: openapi/fonoa-e-invoicing-openapi.yml

  - aid: fonoa:onboarding-api
    name: Fonoa Onboarding API
    description: >
      API for registering companies and individuals as transaction participants (suppliers
      and customers) in Fonoa's platform. Supports creating, updating, deleting, and
      retrieving company and individual participant profiles required for tax compliance workflows.
    humanURL: https://docs.fonoa.com/reference/onboarding-v2
    baseURL: https://api.fonoa.com/onboarding
    tags:
      - Onboarding
      - Company Registration
      - Participant Management
    properties:
      - type: Documentation
        url: https://docs.fonoa.com/reference/onboarding-v2
      - type: OpenAPI
        url: openapi/fonoa-onboarding-openapi.yml

  - aid: fonoa:webhooks-api
    name: Fonoa Webhooks API
    description: >
      Webhooks management API for configuring real-time event notifications from Fonoa's
      platform. Recommended over polling for transaction status updates and e-invoicing
      compliance events.
    humanURL: https://docs.fonoa.com/reference/welcome-to-fonoa
    baseURL: https://api.fonoa.com/webhooks
    tags:
      - Webhooks
      - Event Notifications
      - Real-Time
    properties:
      - type: Documentation
        url: https://docs.fonoa.com/reference/welcome-to-fonoa

common:
  - type: Website
    url: https://www.fonoa.com
  - type: Documentation
    url: https://docs.fonoa.com/reference/welcome-to-fonoa
  - type: GettingStarted
    url: https://docs.fonoa.com/reference/getting-started-with-fonoa-api
  - type: Authentication
    url: https://docs.fonoa.com/reference/api-authentication-overview
  - type: Environments
    url: https://docs.fonoa.com/reference/environments
  - type: ChangeLog
    url: https://docs.fonoa.com/reference/change-log
  - type: Blog
    url: https://www.fonoa.com/resources/blog
  - type: LinkedIn
    url: https://www.linkedin.com/company/fonoa
  - type: X
    url: https://twitter.com/Fonoa_HQ
  - type: GitHubOrganization
    url: https://github.com/Fonoa-Tech
  - type: Security
    url: https://www.fonoa.com/resources/security
  - type: Plans
    url: plans/fonoa-plans-pricing.yml
  - type: RateLimits
    url: rate-limits/fonoa-rate-limits.yml
  - type: FinOps
    url: finops/fonoa-finops.yml
  - type: JSONLDContext
    url: json-ld/fonoa-context.jsonld
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com