aid: infakt
name: inFakt
description: >-
  inFakt is a Polish fintech platform that combines invoicing software, online
  accounting, and dedicated bookkeeper services for sole proprietors (JDG),
  limited-liability companies (sp. z o.o.), foundations and other business types
  operating in Poland. Used by over 460,000 companies and headquartered in
  Kraków, inFakt offers a web app, iOS/Android mobile apps, deep KSeF (Poland's
  National e-Invoice System) integration, and a REST API (v3, JSON) for
  third-party integrations. The API exposes invoices, clients, products, costs,
  bank accounts, VAT exemptions, payment methods and business-activity data so
  e-commerce shops, CRMs and accounting tools can automate invoicing, cost
  booking and tax compliance. inFakt also publishes a hosted MCP server so AI
  agents can operate a company's accounting through Claude and other MCP clients.
url: https://raw.githubusercontent.com/api-evangelist/infakt/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- point-nine
x-tier: profiled
x-tier-reason: enriched-from-public-api-surface
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
image: https://www.infakt.pl/images/logo-infakt.png
tags:
- Company
- Accounting
- Invoicing
- Fintech
- Bookkeeping
- e-Invoicing
- KSeF
- Tax
- Poland
- SMB
apis:
- name: inFakt API v3
  description: >-
    inFakt's REST API (v3) for automating invoicing and accounting. Resources
    are addressed with a .json extension under /api/v3/ and authenticated with a
    per-account API key sent in the X-inFakt-ApiKey header. Confirmed resources:
    invoices, clients, products, costs, bank_accounts, vat_exemptions,
    payment_methods and business_activities.
  humanURL: https://docs.infakt.pl/
  baseURL: https://api.infakt.pl/api/v3/
  properties:
  - type: Documentation
    url: https://docs.infakt.pl/
  - type: APIReference
    url: https://docs.infakt.pl/
  - type: Authentication
    url: authentication/infakt-authentication.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: VulnerabilityDisclosure
  url: security/infakt-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/infakt-domain-security.yml
- type: Website
  url: https://www.infakt.pl
- type: DeveloperPortal
  url: https://www.infakt.pl/api/
- type: Documentation
  url: https://docs.infakt.pl/
- type: APIReference
  url: https://docs.infakt.pl/
- type: GettingStarted
  url: https://www.infakt.pl/integracje-z-infakt-za-pomoca-api/
- type: Support
  url: https://pomoc.infakt.pl/hc/pl
- type: Blog
  url: https://www.infakt.pl/blog/
- type: Pricing
  url: https://www.infakt.pl/cennik/
- type: SignUp
  url: https://konto.infakt.pl/rejestracja
- type: Login
  url: https://konto.infakt.pl/zaloguj
- type: TermsOfService
  url: https://www.infakt.pl/owu/
- type: PrivacyPolicy
  url: https://www.infakt.pl/polityka-prywatnosci/
- type: StatusPage
  url: https://status.infakt.pl/
- type: Security
  url: https://www.infakt.pl/bugbounty/
- type: ChangeLog
  url: https://www.infakt.pl/historia-zmian-w-aplikacji-infakt/
- type: LLMsTxt
  url: llms/infakt-llms.txt
- type: WellKnown
  url: well-known/infakt-well-known.yml
- type: SecurityTxt
  url: well-known/infakt-security.txt
- type: MCPServer
  url: mcp/infakt-mcp.yml
- type: Authentication
  url: authentication/infakt-authentication.yml
- type: Conventions
  url: conventions/infakt-conventions.yml
- type: ErrorCatalog
  url: errors/infakt-problem-types.yml
- type: Lifecycle
  url: lifecycle/infakt-lifecycle.yml
- type: Conformance
  url: conformance/infakt-conformance.yml
- type: DataModel
  url: data-model/infakt-data-model.yml
- type: Sandbox
  url: sandbox/infakt-sandbox.yml
- type: Webhooks
  url: asyncapi/infakt-webhooks.yml
- type: ChangeLog
  url: changelog/infakt-changelog.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence