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

# Get risk signal

> Retrieves a specific risk signal by its unique ID.

Retrieves a specific risk signal by its unique ID. Returns the full signal record including source, score, subject reference, and any attached metadata.

### Parameters

<ParamField path="id" type="string" required>
  The UUID of the risk signal to retrieve
</ParamField>


## OpenAPI

````yaml mint-openapi.yaml GET /v1/risk/signals/{id}
openapi: 3.0.3
info:
  title: Truthlocks API
  description: >
    Truthlocks is a universal verification infrastructure for documents,
    credentials, and digital assets.

    This specification defines the canonical API for interacting with Truthlocks
    services.


    ## Base URLs

    - **Production**: `https://api.truthlocks.com`

    - **Sandbox**: `https://sandbox-api.truthlocks.com`


    ## Authentication

    - **API Keys**: Use `X-API-Key` header for machine-to-machine operations

    - **Bearer Tokens**: Use `Authorization: Bearer <jwt>` for user-initiated
    operations


    ## Tenant Identity

    In production, tenant identity is derived from the authenticated context
    (API key or JWT).

    The `X-Tenant-ID` header is ignored in production to prevent spoofing.
  version: 1.0.0
  contact:
    name: Truthlocks Support
    url: https://truthlocks.com/support
    email: support@truthlocks.com
servers:
  - url: https://api.truthlocks.com
    description: Production API
  - url: https://sandbox-api.truthlocks.com
    description: Sandbox Environment
security:
  - APIKey: []
tags:
  - name: Authentication
    description: API key and token management
  - name: Issuers
    description: Issuer registration and trust management
  - name: Keys
    description: Cryptographic key management for issuers
  - name: Attestations
    description: Attestation lifecycle (mint, revoke, supersede)
  - name: Verification
    description: Attestation verification and proof bundles
  - name: Governance
    description: Issuer governance workflows (admin only)
  - name: Identity
    description: Organization, user, and role management
  - name: Audit
    description: Audit event queries
  - name: Platform
    description: Platform administration (super admin only)
  - name: Platform Review
    description: Staff review workflows for issuer applications
  - name: Tenant Console
    description: Tenant profile and lifecycle endpoints
  - name: Health
    description: Service health and readiness endpoints
  - name: Risk
    description: Risk signal ingestion and fraud detection
  - name: Risk Enforcement
    description: Risk enforcement actions — block, challenge, quarantine, and configuration
  - name: Billing
    description: Billing, subscription, and addon management
  - name: Machine Identity
    description: >-
      Machine Agent Identity Protocol (MAIP) — agent registration, sessions,
      trust, witness, compliance, orchestration, and observability
externalDocs:
  description: Transparency read-only API (separate service spec)
  url: >-
    https://github.com/truthlocks/truthlock/blob/main/docs/transparency/openapi.yaml
paths:
  /v1/risk/signals/{id}:
    get:
      tags:
        - Risk
      summary: Get Risk Signal
      description: Retrieves a specific risk signal by its unique ID.
      parameters:
        - name: id
          in: path
          required: true
          schema:
            type: string
            format: uuid
      responses:
        '200':
          description: Risk signal details
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/RiskSignal'
        '404':
          description: Risk signal not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
      security:
        - APIKey: []
components:
  schemas:
    RiskSignal:
      type: object
      properties:
        id:
          type: string
          format: uuid
        tenant_id:
          type: string
          format: uuid
        source:
          type: string
          description: >-
            Origin of the signal (e.g. device_fingerprint, ip_reputation,
            email_verification, document_analysis, behavioral)
          example: device_fingerprint
        signal_type:
          type: string
          description: Classification of the risk signal
          example: velocity_anomaly
        score:
          type: number
          format: float
          minimum: 0
          maximum: 1
          description: Risk score between 0 (no risk) and 1 (highest risk)
          example: 0.85
        details:
          type: object
          additionalProperties: true
          description: Arbitrary metadata associated with the signal
          example:
            ip: 203.0.113.42
            country: US
            reason: multiple_accounts_same_device
        entity_type:
          type: string
          description: The type of entity this signal relates to
          enum:
            - user
            - device
            - ip
            - document
            - session
          example: user
        entity_id:
          type: string
          description: Identifier of the entity being evaluated
          example: usr_8f14e45f
        created_at:
          type: string
          format: date-time
    ErrorEnvelope:
      type: object
      required:
        - code
        - message
        - http_status
      properties:
        code:
          type: string
          description: Machine-readable error code
          enum:
            - AUTH_REQUIRED
            - AUTH_INVALID
            - PERMISSION_DENIED
            - TENANT_IDENTITY_UNVERIFIED
            - NOT_FOUND
            - VALIDATION_ERROR
            - CONFLICT
            - PAYLOAD_TOO_LARGE
            - RATE_LIMIT_EXCEEDED
            - QUOTA_EXCEEDED
            - SERVICE_UNAVAILABLE
            - INTERNAL_ERROR
        message:
          type: string
          description: Human-readable error message
        http_status:
          type: integer
          description: HTTP status code
        retry_after_ms:
          type: integer
          description: Milliseconds to wait before retrying (for rate limits)
        details:
          type: object
          description: Additional error context
      example:
        code: AUTH_REQUIRED
        message: Authentication required
        http_status: 401
  securitySchemes:
    APIKey:
      type: apiKey
      in: header
      name: X-API-Key
      description: API key for machine-to-machine authentication

````