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OpenAPI Specification

openapi: 3.2.0
info:
  title: LayerCall Reputation API
  version: 1.0.0
  summary: Trust and risk intelligence for IPs, emails, phones, domains and devices.
  description: 'Score any IP address, email, phone number, domain or device — or a whole signup in one call — and get back a 0–100 risk score plus an allow / review / block verdict.


    Authenticate with an API key from https://www.layercall.com/get-key. Free tier: 1,000 lookups per month, no card required. Test-mode keys are never billed.


    Every endpoint accepts an optional `strictness` parameter (`lenient`, `balanced`, `strict`) that shifts the verdict thresholds without changing the underlying signals.'
  termsOfService: https://www.layercall.com/terms
  contact:
    name: LayerCall Support
    email: support@layercall.com
    url: https://www.layercall.com/contact
  license:
    name: Proprietary
    url: https://www.layercall.com/terms
  x-logo:
    url: https://www.layercall.com/logo-icon.png
    altText: LayerCall
servers:
- url: https://www.layercall.com
  description: Production
security:
- ApiKeyAuth: []
- BearerAuth: []
tags:
- name: Reputation
paths:
  /v1/report:
    post:
      tags:
      - Reputation
      summary: Report a confirmed-fraud value
      description: Feeds our own reputation network. Counts as one lookup per value. Test-mode keys are refused so fixtures never reach shared data.
      responses:
        '200':
          description: Success
          content:
            application/json:
              schema:
                type: object
                properties:
                  processing_time_sec:
                    type: number
                    example: 0.218
                  reported:
                    type: integer
                    example: 1
                  request_id:
                    type: string
                    example: req_1c20ed09-ae37-4432-b5ba-ee52b8580738
                  results:
                    type: array
                    items:
                      type: object
                      properties:
                        abuse_reports:
                          type: integer
                          example: 1
                        kind:
                          type: string
                          example: ip
                  skipped:
                    type: array
              example:
                processing_time_sec: 0.218
                reported: 1
                request_id: req_1c20ed09-ae37-4432-b5ba-ee52b8580738
                results:
                - abuse_reports: 1
                  kind: ip
                skipped: []
          headers:
            x-ratelimit-limit:
              description: Requests allowed per minute (600).
              schema:
                type: integer
            x-ratelimit-remaining:
              description: Requests left in the current minute.
              schema:
                type: integer
        '400':
          description: Invalid input
        '402':
          description: Quota exceeded, or account paused after a failed payment
        '403':
          description: Invalid or revoked API key
        '429':
          description: Rate limited — honour Retry-After
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - kind
              properties:
                kind:
                  type: string
                  enum:
                  - ip
                  - email
                  - domain
                  - phone
                value:
                  type: string
                values:
                  type: array
                  items:
                    type: string
      operationId: postV1Report
      x-operation-id-source: derived
  /v1/outcome:
    post:
      tags:
      - Reputation
      summary: Label a past score as fraud or legitimate
      description: Closes the feedback loop using the request_id from any scoring call. Free — not metered.
      responses:
        '200':
          description: Success
          content:
            application/json:
              schema:
                type: object
                properties:
                  not_found:
                    type: integer
                    example: 0
                  processing_time_sec:
                    type: number
                    example: 0.048
                  recorded:
                    type: integer
                    example: 1
                  request_id:
                    type: string
                    example: req_a9b7f2a2-27e2-42aa-88ec-3dcf8e969123
                  results:
                    type: array
                    items:
                      type: object
                      properties:
                        disagreement:
                          type: boolean
                          example: false
                        our_score:
                          type: integer
                          example: 40
                        our_verdict:
                          type: string
                          example: review
                        request_id:
                          type: string
                          example: req_b3b102ac-7be9-4d47-a40f-0e125957f823
                        status:
                          type: string
                          example: recorded
              example:
                not_found: 0
                processing_time_sec: 0.048
                recorded: 1
                request_id: req_a9b7f2a2-27e2-42aa-88ec-3dcf8e969123
                results:
                - disagreement: false
                  our_score: 40
                  our_verdict: review
                  request_id: req_b3b102ac-7be9-4d47-a40f-0e125957f823
                  status: recorded
          headers:
            x-ratelimit-limit:
              description: Requests allowed per minute (600).
              schema:
                type: integer
            x-ratelimit-remaining:
              description: Requests left in the current minute.
              schema:
                type: integer
        '400':
          description: Invalid input
        '402':
          description: Quota exceeded, or account paused after a failed payment
        '403':
          description: Invalid or revoked API key
        '429':
          description: Rate limited — honour Retry-After
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - request_id
              - outcome
              properties:
                request_id:
                  type: string
                outcome:
                  type: string
                  enum:
                  - fraud
                  - legit
      operationId: postV1Outcome
      x-operation-id-source: derived
components:
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: x-api-key
      description: Your API key from https://www.layercall.com/get-key
    BearerAuth:
      type: http
      scheme: bearer
      description: 'Same key, sent as `Authorization: Bearer <key>`.'
externalDocs:
  description: Guides and examples
  url: https://www.layercall.com/docs