openapi: 3.2.0
info:
  title: i6eal Open AI Data German AI Evidence Network API
  version: 1.0.0
  description: 'Open datasets on artificial intelligence in Germany and the EU — public procurement, federal budget lines, case law, supervision, standardisation, medical devices, enforcement and more.


    **No authentication, no registration, no rate limit, no quota.** Every endpoint is a static file served from a CDN and answers plain `GET` requests. Cross-origin requests are permitted (`Access-Control-Allow-Origin: *`), so the data can be fetched directly from a browser.


    Each dataset publishes a full JSON index, one or more CSV tables, and — where the dataset tracks change over time — an Atom change feed. `methodology.json` states how a dataset is collected and what it does and does not claim.


    Start at the [DCAT-AP catalogue](https://i6eal.de/data/catalog/dcat.jsonld) to discover everything programmatically.


    ### Licensing


    The i6eal compilation, structure and original descriptions are licensed [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/). This is **not** a blanket licence over the data itself: underlying records remain subject to the rights and reuse terms of each named official source. Every dataset carries its own source list and rights statement — see the per-operation descriptions and `dct:rights` in the catalogue.


    Full terms: https://i6eal.de/tools/daten/


    ### Stability


    Distribution URLs are treated as permanent. Payload shapes are versioned per dataset through the `schemaVersion` field in each index.'
  termsOfService: https://i6eal.de/tools/daten/
  contact:
    name: i6eal
    url: https://i6eal.de/kontakt/
    email: ai@i6eal.de
  license:
    name: CC BY 4.0 — i6eal compilation only; source records retain source-specific rights
    url: https://i6eal.de/tools/daten/
  x-logo:
    url: https://i6eal.de/publisher-logo.png
    altText: i6eal
servers:
- url: https://i6eal.de
  description: Production — static files behind CloudFront
security: []
tags:
- name: German AI Evidence Network
  description: Source-evidenced edges between actors, projects, outputs, systems, repositories, packages, procurements and budget titles.
  externalDocs:
    description: Dataset documentation and methodology
    url: https://i6eal.de/tools/ki-evidenznetz/
paths:
  /data/ki-evidenznetz/index.json:
    get:
      tags:
      - German AI Evidence Network
      operationId: getGermanAiEvidenceNetworkIndex
      summary: Full index — German AI Evidence Network
      description: 'Source-evidenced edges between actors, projects, outputs, systems, repositories, packages, procurements and budget titles.


        Attribution: i6eal evidence network assembled from separately identified public datasets.


        Reuse: The network combines datasets with different or, in some cases, unverified source rights. The referenced source terms remain decisive for every edge.'
      responses:
        '200':
          description: Full index of German AI Evidence Network.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DatasetIndex'
        '404':
          $ref: '#/components/responses/NotFound'
  /data/ki-evidenznetz/entities.csv:
    get:
      tags:
      - German AI Evidence Network
      operationId: getGermanAiEvidenceNetworkEntities
      summary: Entities — German AI Evidence Network
      description: 'Source-evidenced edges between actors, projects, outputs, systems, repositories, packages, procurements and budget titles.


        Attribution: i6eal evidence network assembled from separately identified public datasets.


        Reuse: The network combines datasets with different or, in some cases, unverified source rights. The referenced source terms remain decisive for every edge.'
      responses:
        '200':
          description: Entities of German AI Evidence Network.
          content:
            text/csv:
              schema:
                $ref: '#/components/schemas/CsvTable'
        '404':
          $ref: '#/components/responses/NotFound'
  /data/ki-evidenznetz/edges.csv:
    get:
      tags:
      - German AI Evidence Network
      operationId: getGermanAiEvidenceNetworkEdges
      summary: Evidence edges — German AI Evidence Network
      description: 'Source-evidenced edges between actors, projects, outputs, systems, repositories, packages, procurements and budget titles.


        Attribution: i6eal evidence network assembled from separately identified public datasets.


        Reuse: The network combines datasets with different or, in some cases, unverified source rights. The referenced source terms remain decisive for every edge.'
      responses:
        '200':
          description: Evidence edges of German AI Evidence Network.
          content:
            text/csv:
              schema:
                $ref: '#/components/schemas/CsvTable'
        '404':
          $ref: '#/components/responses/NotFound'
  /data/ki-evidenznetz/methodology.json:
    get:
      tags:
      - German AI Evidence Network
      operationId: getGermanAiEvidenceNetworkMethodology
      summary: Methodology — German AI Evidence Network
      description: 'Source-evidenced edges between actors, projects, outputs, systems, repositories, packages, procurements and budget titles.


        Attribution: i6eal evidence network assembled from separately identified public datasets.


        Reuse: The network combines datasets with different or, in some cases, unverified source rights. The referenced source terms remain decisive for every edge.'
      responses:
        '200':
          description: Methodology of German AI Evidence Network.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DatasetResource'
        '404':
          $ref: '#/components/responses/NotFound'
components:
  schemas:
    DatasetResource:
      type: object
      description: A dataset-specific JSON document. See the dataset entry in the DCAT catalogue for its shape.
      additionalProperties: true
    CsvTable:
      type: string
      description: RFC 4180 CSV with a header row, UTF-8 encoded.
    DatasetIndex:
      type: object
      description: Every dataset index shares the envelope below. The remaining top-level keys are dataset-specific — consult the `methodology` block and the dataset entry in the DCAT catalogue.
      required:
      - schemaVersion
      properties:
        schemaVersion:
          description: Payload contract of this dataset. Changes only on a breaking shape change.
          oneOf:
          - type: string
          - type: integer
        generatedAt:
          type: string
          format: date-time
          description: When this projection was built.
        trackingSince:
          type: string
          description: Start of the i6eal observation period — distinct from the coverage of the underlying sources.
        methodology:
          type: object
          description: How the dataset is collected and what it does and does not claim.
        downloads:
          type: object
          additionalProperties:
            type: string
          description: Named paths of sibling distributions published with this dataset.
      additionalProperties: true
  responses:
    NotFound:
      description: No distribution exists at this path.
externalDocs:
  description: Open data hub, licensing and citation guidance
  url: https://i6eal.de/tools/daten/