Cernion Evidence Router API

The Evidence Router API from Cernion — 1 operation(s) for evidence router.

Operations 1

POST /api/evidence-router/route Recommend read-only evidence endpoints for a request (never executes, never… #

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OpenAPI Specification

cernion-de-evidence-router-api-openapi.yml Raw ↑
openapi: 3.2.0
info:
  title: Cernion Energy Tools Evidence Router 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: Evidence Router
paths:
  /api/evidence-router/route:
    post:
      summary: Recommend read-only evidence endpoints for a request (never executes, never…
      tags:
      - Evidence Router
      operationId: evidenceRouterRoute
      parameters:
      - $ref: '#/components/parameters/TokenQuery'
      responses:
        '200':
          description: Evidence Router response — recommendation, never an executed result or final answer.
          content:
            application/json:
              schema:
                type: object
                required:
                - success
                - resolved
                - requiredEvidenceTypes
                - recommendedEndpoints
                - coverage
                - nextStep
                properties:
                  success:
                    type: boolean
                  resolved:
                    type: object
                    properties:
                      kind:
                        type: string
                        example: evidence_plan
                      source:
                        type: string
                        example: evidence_router
                  requiredEvidenceTypes:
                    type: array
                    items:
                      type: string
                  recommendedEndpoints:
                    type: array
                    items:
                      type: object
                      properties:
                        purpose:
                          type: string
                        method:
                          type: string
                        path:
                          type: string
                        query:
                          type: object
                          additionalProperties: true
                        resultKind:
                          type: string
                        semanticFacts:
                          type: array
                          items:
                            type: string
                        freshness:
                          type: string
                        granularity:
                          type: string
                        timeRangeSupport:
                          type: boolean
                        requiredInputs:
                          type: array
                          items:
                            type: string
                        optionalInputs:
                          type: array
                          items:
                            type: string
                        policy:
                          type: object
                          properties:
                            readOnly:
                              type: boolean
                            sideEffects:
                              type: string
                            tenantScoped:
                              type: boolean
                            externalSideEffects:
                              type: boolean
                  coverage:
                    type: object
                    properties:
                      coveredEvidenceTypes:
                        type: array
                        items:
                          type: string
                      missingEvidenceTypes:
                        type: array
                        items:
                          type: string
                      noSubstitution:
                        type: boolean
                        example: true
                  nextStep:
                    type: string
      description: 'Infers which evidence type(s) (resultKind, e.g. time_series, asset_table, market_signal) the request needs, then matches them against a curated read-only endpoint catalog. Recommends one or more approved read-only endpoints with fachliche result semantics, and reports coverage/missing evidence types. Never substitutes an unrelated endpoint when the required evidence type is unavailable (coverage.noSubstitution is always true). Never mutates state, never creates process side effects, never synthesizes the final user-facing answer — that remains the responsibility of the consuming agent/orchestrator. Distinct from the Process Intake / Write Boundary contract (POST /api/copilot-process/intents): this action only ever recommends GET/POST read-only lookups, never process/write intents.'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - question
              properties:
                question:
                  type: string
                  minLength: 1
                  maxLength: 8000
                  description: Natural-language request describing the evidence needed.
                  example: Wie hoch ist die CO2-Intensität in den nächsten 24 Stunden in 69168?
                context:
                  type: object
                  additionalProperties: true
                  description: Optional canonical input values (location, dateFrom, dateTo, assetType, ...).
                token:
                  type: string
                  description: Optional Cernion MCP token for this request. Overrides CERNION_TOKEN when provided.
            examples:
              timeSeries:
                summary: Time-series / CO2 evidence request
                value:
                  question: Wie hoch ist die CO2-Intensität in den nächsten 24 Stunden in 69168?
                  context:
                    location: '69168'
              assetTable:
                summary: Asset-table evidence request
                value:
                  question: Liste aller Solaranlagen in 69168
                  context:
                    assetType: solar
                    location: '69168'
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.'