> ## Documentation Index
> Fetch the complete documentation index at: https://docs.homelogs.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Signals Catalog

Returns active signal keys and metadata for both geo-scoped and permit-scoped families.

Call this first when your client needs dynamic signal discovery before requesting leads, stats, or geo signal rows.

For signal meanings and timing guidance, see [Signals Catalog](/signals).


## OpenAPI

````yaml GET /v1/signals/catalog
openapi: 3.1.0
info:
  title: HomeLogs Geo + Permit Intelligence API
  version: 1.0.0
  description: >-
    Geo-first API for location resolution, permit retrieval, and active geo
    signal access.
servers:
  - url: https://api.homelogs.io
    description: Production API
security:
  - ApiKeyAuth: []
tags:
  - name: locations
    description: Location resolution and anchor detail endpoints.
  - name: permits
    description: Raw permit retrieval by geo scope.
  - name: signals
    description: Signal catalog and signal reads.
  - name: permit-signals
    description: Permit-scoped signal leads and aggregates.
  - name: health
    description: Service liveness endpoint.
paths:
  /v1/signals/catalog:
    get:
      tags:
        - signals
      summary: Get active signal catalog for a state
      operationId: getSignalsCatalog
      parameters:
        - name: state
          in: query
          required: false
          description: Two-letter state code. Defaults to WA.
          schema:
            type: string
            pattern: ^[A-Za-z]{2}$
            default: WA
        - name: signal_keys
          in: query
          required: false
          description: Optional CSV list of signal keys.
          schema:
            type: string
      responses:
        '200':
          description: Catalog entries for active pointers in a state.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SignalsCatalogResponse'
        '403':
          $ref: '#/components/responses/GatewayAuth403'
        '422':
          $ref: '#/components/responses/ValidationError422'
        '429':
          $ref: '#/components/responses/GatewayThrottle429'
        '500':
          $ref: '#/components/responses/InternalError500'
components:
  schemas:
    SignalsCatalogResponse:
      type: object
      required:
        - state
        - count
        - signals
      properties:
        state:
          type: string
        count:
          type: integer
          minimum: 0
        signals:
          type: array
          items:
            $ref: '#/components/schemas/SignalsCatalogEntry'
      additionalProperties: false
    SignalsCatalogEntry:
      type: object
      required:
        - signal_key
        - active_signal_version
        - active_weights_profile_id
        - status
        - spec
      properties:
        signal_key:
          type: string
        active_signal_version:
          type:
            - string
            - 'null'
        active_weights_profile_id:
          type:
            - string
            - 'null'
        status:
          type:
            - string
            - 'null'
        spec:
          type: object
          additionalProperties: true
      additionalProperties: false
    GatewayErrorResponse:
      type: object
      properties:
        message:
          type: string
      additionalProperties: true
    ErrorResponse:
      type: object
      required:
        - error
      properties:
        error:
          type: object
          required:
            - code
            - message
          properties:
            code:
              type: string
              example: VALIDATION_ERROR
            message:
              type: string
              example: state must be a 2-letter code
            request_id:
              type:
                - string
                - 'null'
              example: req-123
  responses:
    GatewayAuth403:
      description: Missing or invalid API key.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/GatewayErrorResponse'
    ValidationError422:
      description: Validation failure.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
    GatewayThrottle429:
      description: Rate limit or quota exceeded.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/GatewayErrorResponse'
    InternalError500:
      description: Internal server error.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: X-API-Key

````