DDD Invoices · Authentication Profile

Ddd Invoices Authentication

Authentication

DDD Invoices secures its APIs with apiKey across 1 declared security scheme, as derived from its OpenAPI definitions.

CompanyE-InvoicingFiscalizationTax ComplianceReal-Time ReportingPEPPOLInvoicing
Methods: apiKey Schemes: 1 OAuth flows: API key in: header

Security Schemes

IoTConnectionKey apiKey
· in: header ()

Source

Authentication Profile

ddd-invoices-authentication.yml Raw ↑ 
generated: '2026-07-18'
method: searched
source: https://dddinvoices.com/documentation-e-invoicing
docs: https://dddinvoices.com/documentation-e-invoicing
summary:
  types:
  - apiKey
  api_key_in:
  - header
  oauth2_flows: []
  notes: >-
    DDD Invoices uses a custom token ("IoT") scheme carried in the HTTP
    Authorization header. There is no OAuth 2.0 / OpenID Connect surface
    documented. A per-legal-entity Connection Key is issued after sign-up and
    scopes calls to a service (EUeInvoices). Separate TEST and PROD connection
    keys are provisioned per registered legal entity.
schemes:
- name: IoTConnectionKey
  type: apiKey
  in: header
  parameter_name: Authorization
  format: 'IoT <connection-key>:EUeInvoices'
  description: >-
    Custom token authentication. The Authorization header carries the literal
    scheme keyword "IoT" followed by the legal entity's Connection Key and the
    target service name, e.g. "Authorization: IoT <connection-key>:EUeInvoices".
    HTTPS is required for all requests. TEST and PROD keys are distinct.
  sources:
  - https://dddinvoices.com/documentation-e-invoicing

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