openapi: 3.2.0
info:
  title: Cape Partners — Sniffer Agent Matching API
  version: 1.0.0
  description: Machine-readable API backing the Cape Partners M&A deal-flow workspace (click, humans).
  contact:
    name: Cape Partners
    url: https://www.capepartners.fr
servers:
- url: https://www.capepartners.fr
  description: Production (www) via Cloudflare
- url: https://sniffer.capepartners.fr
  description: Workspace host
- url: http://localhost:3000
  description: Local dev
tags:
- name: Matching
paths:
  /api/matches/{session_id}:
    get:
      summary: Find suggested matches for the session (buyer→sellers or seller→buyers).
      tags:
      - Matching
      responses:
        '200':
          description: Ranked match list
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Match'
                description: Ranked matches
        '404':
          description: No buyer or seller for this session
          content:
            application/json:
              schema:
                type: object
                description: No buyer or seller
                properties:
                  error:
                    type: string
                required:
                - error
        '403':
          description: Session authorization failed
          content:
            application/json:
              schema:
                type: object
                description: Guard rejection
                properties:
                  error:
                    type: string
                required:
                - error
      parameters:
      - name: session_id
        in: path
        required: true
        schema:
          type: string
          format: uuid
        description: Workspace session UUID (acts as the scoped credential)
      - name: limit
        in: query
        required: false
        schema:
          type: integer
          default: 10
        description: Max matches returned; 0 = the full scored universe. Values above 50 are still logged only up to the 50-pair cap.
      operationId: getApiMatchesBySessionId
      x-operation-id-source: derived
  /api/matched-names/{session_id}:
    get:
      summary: Reveal non-redacted matched company names for a session. NDA-signature-gated
      tags:
      - Matching
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/MatchedNames'
      parameters:
      - name: session_id
        in: path
        required: true
        schema:
          type: string
          format: uuid
        description: Workspace session UUID (acts as the scoped credential)
      security:
      - SessionToken: []
        NdaSigned: []
      operationId: getApiMatchedNamesBySessionId
      x-operation-id-source: derived
  /api/seller-name/{session_id}:
    get:
      summary: Resolve an entity name by ID, but ONLY for entities within the requesting…
      tags:
      - Matching
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/EntityName'
        '403':
          description: NDA not signed or entity not scoped to this session
          content:
            application/json:
              schema:
                type: object
                description: Not scoped / NDA required
                properties:
                  error:
                    type: string
                required:
                - error
        '404':
          description: Entity not found
          content:
            application/json:
              schema:
                type: object
                description: Entity not found
                properties:
                  error:
                    type: string
                required:
                - error
      parameters:
      - name: session_id
        in: path
        required: true
        schema:
          type: string
          format: uuid
        description: Workspace session UUID (acts as the scoped credential)
      - name: id
        in: query
        required: true
        schema:
          type: integer
        description: Entity ID to resolve (must be within this session's scope)
      security:
      - SessionToken: []
        NdaSigned: []
      operationId: getApiSellerNameBySessionId
      x-operation-id-source: derived
components:
  schemas:
    MatchedNames:
      type: object
      properties:
        names:
          type: array
          items:
            type: string
          description: Non-redacted counterparty names (NDA-gated)
    EntityName:
      type: object
      properties:
        name:
          type: string
    Match:
      type: object
      description: A ranked counterparty match. Names are redacted (Company A/B/C…) and financial fit signals are returned as coarse bands inside `reasons` (strong/moderate/weak/poor) until an NDA is recorded. Full identity and granular metrics unlock only after POST /api/nda/sign.
      properties:
        id:
          type: integer
        name:
          type: string
          description: Redacted name (Company A/B/C…) unless NDA-gated reveal
        score:
          type: number
          format: float
          description: Overall fit score (deterministic x semantic)
        scores:
          type: object
          description: Per-dimension deterministic sub-scores (revenue/growth/ebitda/deterministic/semantic)
        data_quality:
          type: number
          format: float
        reasons:
          type: array
          items:
            type: string
          description: 'Band-qualified fit reasons, e.g. "Revenue fit: strong vs range €2M–€50M" (no raw revenue/growth/EBITDA)'
  securitySchemes:
    SessionToken:
      type: apiKey
      in: header
      name: X-Session-Id
      description: 'The workspace session UUID is a capability token carried in the URL PATH (not this header — shown here only because OpenAPI securitySchemes cannot model a path parameter as a credential). A valid request must present a well-formed UUID-v4 in the path segment {session_id} AND a first-party Origin/Referer (or none). Requests carrying a known-foreign Origin/Referer are refused 403. Per-IP rate limiting applies. All responses carry Referrer-Policy: strict-origin-when-cross-origin.'
    NdaSigned:
      type: apiKey
      in: header
      name: X-Nda-Signed
      description: 'Precondition (not a literal header): a server-side NDA signature for {session_id} must be recorded in the nda_signatures table via POST /api/nda/sign before NDA-gated resources (/api/matched-names, /api/infomemo/*) will serve data. Recorded signatures are enforced server-side (helper `nda_signed`), not by trusting a client header.'