aid: ddd-invoices
name: DDD Invoices
description: >-
  DDD Invoices is a unified e-invoicing, fiscalization, and real-time tax
  reporting compliance platform delivered as a single API. It lets software
  companies, ERPs, SaaS platforms, e-commerce systems, marketplaces, payment
  providers, and POS vendors issue, receive, and archive locally compliant
  invoices across 30+ countries without building country-specific tax
  integrations. The platform handles B2B and B2G e-invoicing over the PEPPOL
  network, national real-time reporting and fiscalization mandates, AI-assisted
  invoice document processing, and long-term compliant archival, exposing it all
  through one JSON API with test and production connection keys. Backed by 500
  Global, it raised a USD 1.3M seed round.
url: https://raw.githubusercontent.com/api-evangelist/ddd-invoices/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
x-tier: stub
x-tier-reason: portfolio-lead
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: '2026-07-18'
image: https://dddinvoices.com/og/default.png
tags:
- Company
- e-Invoicing
- Fiscalization
- Tax Compliance
- Real-Time Reporting
- PEPPOL
- Invoicing
- API
apis:
- name: DDD Invoices EUeInvoices API
  description: >-
    Single JSON API for issuing, receiving, and archiving locally compliant
    invoices — e-invoicing, PEPPOL exchange, fiscalization, and real-time tax
    reporting across 30+ countries. Uses a custom IoT connection-key header for
    authentication with distinct TEST and PROD keys per legal entity.
  humanURL: https://dddinvoices.com/documentation-e-invoicing
  baseURL: https://app.dddinvoices.com/api/service/
  properties:
  - type: Documentation
    url: https://dddinvoices.com/documentation-e-invoicing
  - type: APIReference
    url: https://api.dddinvoices.com/public-api-playground
  - type: Authentication
    url: authentication/ddd-invoices-authentication.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://dddinvoices.com
- type: Documentation
  url: https://dddinvoices.com/documentation-e-invoicing
- type: APIReference
  url: https://api.dddinvoices.com/public-api-playground
- type: Quickstart
  url: https://dddinvoices.com/builders
- type: Pricing
  url: https://dddinvoices.com/pricing
- type: SignUp
  url: https://app.dddinvoices.com/sign-up
- type: Login
  url: https://app.dddinvoices.com/login
- type: TermsOfService
  url: https://dddinvoices.com/terms-and-conditions
- type: PrivacyPolicy
  url: https://dddinvoices.com/privacy-policy
- type: Blog
  url: https://dddinvoices.com/learn
- type: Support
  url: https://calendly.com/ddd-invoices/30min-intro
- type: SLA
  url: https://dddinvoices.com/service-support-level-agreements
- type: Compliance
  url: https://dddinvoices.com/data-processing
- type: LLMsTxt
  url: llms/ddd-invoices-llms.txt
- type: Authentication
  url: authentication/ddd-invoices-authentication.yml
- type: Conventions
  url: conventions/ddd-invoices-conventions.yml
- type: Sandbox
  url: sandbox/ddd-invoices-sandbox.yml
- type: MCPServer
  url: mcp/ddd-invoices-mcp.yml
- type: Conformance
  url: conformance/ddd-invoices-conformance.yml
- type: DomainSecurity
  url: security/ddd-invoices-domain-security.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence