Cernion Copilot API

The Copilot API from Cernion — 1 operation(s) for copilot.

Operations 2

GET /api/query/search Search Cernion energy objects (companies, VDMI, ZNP, grid connections, EDM) #
POST /api/query/search Search Cernion data with a JSON request body #

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This API
curl "https://apis.io/api/v1/apis/cernion-de:cernion-de-copilot-api"
All apis
curl "https://apis.io/api/v1/apis?limit=25"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

cernion-de-copilot-api-openapi.yml Raw ↑
openapi: 3.2.0
info:
  title: Cernion Energy Tools Copilot API
  version: 0.99.22
  description: 'MicroService Agent System for Energy Markets - REST API with AI integration.


    CERNION_TOKEN: request at https://cernion.de/ or by email: dev@stromdao.com.


    For the public instance at https://api.cernion.de/, create your token at https://cernion.de/cet-token/.'
servers:
- url: https://api.cernion.de
  description: API Server
tags:
- name: Copilot
paths:
  /api/query/search:
    get:
      summary: Search Cernion energy objects (companies, VDMI, ZNP, grid connections, EDM)
      tags:
      - Copilot
      operationId: searchCernionData
      parameters:
      - name: q
        in: query
        required: true
        description: Search term. Company/VNB name, VDMI matrix name, ZNP project name, grid operator name, or exact MeLo ID (DE…). German or English.
        schema:
          type: string
          minLength: 1
          maxLength: 200
          example: Stadtwerke Heidelberg
      - name: domain
        in: query
        required: false
        description: Restrict search to a specific data domain. Defaults to "all" which searches all domains in parallel.
        schema:
          type: string
          enum:
          - companies
          - vnb
          - edm
          - vdmi
          - grid_connection
          - znp
          - all
          default: all
          example: vdmi
      - name: limit
        in: query
        required: false
        description: Maximum number of results to return (1–25).
        schema:
          type: integer
          minimum: 1
          maximum: 25
          default: 10
      - $ref: '#/components/parameters/TokenQuery'
      responses:
        '200':
          description: Search results from matched domains
          content:
            application/json:
              schema:
                type: object
                properties:
                  query:
                    type: string
                    description: The original search term
                    example: Stadtwerke Heidelberg
                  domain:
                    type: string
                    enum:
                    - companies
                    - vnb
                    - edm
                    - vdmi
                    - grid_connection
                    - znp
                    - all
                    example: all
                  totalResults:
                    type: integer
                    example: 2
                  results:
                    type: array
                    items:
                      type: object
                      properties:
                        id:
                          type: string
                          description: Unique identifier within the domain
                          example: 550e8400-e29b-41d4-a716-446655440000
                        title:
                          type: string
                          description: Primary display name
                          example: Stadtwerke Heidelberg GmbH & Co. KG
                        excerpt:
                          type: string
                          description: One-line context string with key attributes
                        domain:
                          type: string
                          description: Source domain of this result
                          enum:
                          - companies
                          - edm
                          - vdmi
                          - grid_connection
                          - znp
                        type:
                          type: string
                          description: Object type within the domain
                          example: company
                        status:
                          type:
                          - string
                          - 'null'
                          description: Lifecycle or decision status of the object
                          example: active
                        url:
                          type: string
                          description: API path to retrieve the full record
                          example: /api/companies/550e8400-e29b-41d4-a716-446655440000
                        metadata:
                          type: object
                          description: Domain-specific structured attributes
                      required:
                      - id
                      - title
                      - excerpt
                      - domain
                      - type
                      - status
                      - url
                required:
                - query
                - domain
                - totalResults
                - results
              examples:
                companyHit:
                  summary: Company result
                  value:
                    query: Stadtwerke Heidelberg
                    domain: all
                    totalResults: 1
                    results:
                    - id: 550e8400-e29b-41d4-a716-446655440000
                      title: Stadtwerke Heidelberg
                      excerpt: 'Stadtwerke Heidelberg GmbH & Co. KG · VNB · BDEW 9900277000000 · 2 Marktpartner · Status: active'
                      domain: companies
                      type: company
                      status: active
                      url: /api/companies/550e8400-e29b-41d4-a716-446655440000
                      metadata:
                        memberCount: 2
                        hasVnb: true
                vdmiHit:
                  summary: VDMI matrix result
                  value:
                    query: Netzanschluss
                    domain: vdmi
                    totalResults: 1
                    results:
                    - id: abc123
                      title: Netzanschluss-Genehmigung PV
                      excerpt: 'Prozesstyp: standard · Nominierung: pending'
                      domain: vdmi
                      type: matrix
                      status: active
                      url: /api/vdmi/abc123
                      metadata:
                        processType: standard
                        nominationStatus: pending
                        evidenceCount: 2
                gridConnectionHit:
                  summary: Grid connection validation result
                  value:
                    query: STROMDAO Netze
                    domain: grid_connection
                    totalResults: 1
                    results:
                    - id: a1b2c3d4-1234-5678-90ab-cdef12345678
                      title: Netzanschluss-Validierung · STROMDAO Netze
                      excerpt: 'Entscheidung: GO_CONDITIONAL · 2026-03-30'
                      domain: grid_connection
                      type: validation
                      status: GO_CONDITIONAL
                      url: /api/grid-connection/validations/a1b2c3d4-1234-5678-90ab-cdef12345678
                      metadata:
                        gridOperatorName: STROMDAO Netze
                        findingsCount: 3
                        createdAt: '2026-03-30T10:00:00Z'
                noResults:
                  summary: No results
                  value:
                    query: nonexistent
                    domain: all
                    totalResults: 0
                    results: []
        '400':
          description: Validation error — q is missing or too long, limit out of range
          content:
            application/json:
              schema:
                type: object
                properties:
                  name:
                    type: string
                    example: ValidationError
                  message:
                    type: string
      description: 'Search across Cernion energy management data for use in Microsoft 365 Copilot, OpenAPI plugins, and connected integrations.


        **Supported domains**:

        - **companies** — Search company entities (Stadtwerke, Konzernverbund) by name. Returns BDEW codes, market roles, member count.

        - **vnb** — Narrow search to companies with a Verteilnetzbetreiber (VNB) market role.

        - **edm** — Look up a Messlokalisation (MeLo) by its exact DE-prefixed ID.

        - **vdmi** — Search VDMI responsibility matrix instances by name, scope, or process type.

        - **grid_connection** — Search past grid connection validation reports by operator name or decision.

        - **znp** — Search Zielnetzplanung projects by name.

        - **all** (default) — Searches all domains in parallel.


        Each result carries **domain**, **type**, **id**, **title**, **excerpt**, **status**, and **url** pointing to the detail endpoint for that object.


        **Performance**: Deterministic, < 300 ms. Does not invoke any external API or LLM.


        **For complex natural-language queries** (e.g. "PV-Kapazität in Bayern") use POST /ask instead.'
    post:
      summary: Search Cernion data with a JSON request body
      tags:
      - Copilot
      operationId: searchCernionDataBody
      parameters:
      - $ref: '#/components/parameters/TokenQuery'
      responses:
        '200':
          description: Search results from matched domains
          content:
            application/json:
              schema:
                type: object
                properties:
                  query:
                    type: string
                    description: The original search term
                  domain:
                    type: string
                    enum:
                    - companies
                    - vnb
                    - edm
                    - vdmi
                    - grid_connection
                    - znp
                    - all
                  totalResults:
                    type: integer
                  results:
                    type: array
                    items:
                      type: object
                required:
                - query
                - domain
                - totalResults
                - results
        '400':
          description: Validation error
      description: Search Cernion entities from Copilot Studio. Provide q as the search term, optionally domain and limit. Read-only.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                q:
                  type: string
                  minLength: 1
                  maxLength: 200
                  description: Required search term, such as a city, company, VNB, VDMI matrix, ZNP project, grid operator, or MeLo ID.
                  example: Wiesloch
                domain:
                  type: string
                  enum:
                  - companies
                  - vnb
                  - edm
                  - vdmi
                  - grid_connection
                  - znp
                  - all
                  default: all
                  description: Optional search domain. Use vnb to find distribution grid operators.
                  example: vnb
                limit:
                  type: integer
                  minimum: 1
                  maximum: 25
                  default: 10
                  description: Optional maximum number of results.
                  example: 5
                token:
                  type: string
                  description: Optional Cernion MCP token for this request. Overrides CERNION_TOKEN when provided.
              required:
              - q
components:
  parameters:
    TokenQuery:
      name: token
      in: query
      required: false
      schema:
        type: string
      description: Optional Cernion MCP token as URL query parameter. If provided, it overrides CERNION_TOKEN for this request. Prefer Authorization Bearer header in production to reduce token exposure in URLs/logs.
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: X-API-Key
    BearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: 'Optional Cernion MCP token. If not provided, falls back to CERNION_TOKEN from environment. Request token at https://cernion.de/ or by email: dev@stromdao.com.'