layercall-com

layercall-com AI agents API

The AI agents API from layercall-com — 3 operation(s) for ai agents.

GitHub OpenAPI

Operations 4

POST /v1/verify/agent Verify an AI agent's HTTP Message Signature #
POST /v1/agent/authorize Decide whether to allow an agent request #
GET /v1/agent/policy Read your agent policy #
PUT /v1/agent/policy Replace your agent policy #

Specifications

⚙
OpenAPI
https://artifacts.apis.io/layercall-com/openapi/layercall-com-ai-agents-api-openapi.yml

Schemas & Data

📊
JSONSchema
https://artifacts.apis.io/layercall-com/json-schema/layercall-com-email-result-schema.json
📊
JSONSchema
https://artifacts.apis.io/layercall-com/json-schema/layercall-com-ip-score-schema.json
📊
JSONSchema
https://artifacts.apis.io/layercall-com/json-schema/layercall-com-user-score-schema.json
📊
JSONSchema
https://artifacts.apis.io/layercall-com/json-schema/layercall-com-domain-result-schema.json
📊
JSONSchema
https://artifacts.apis.io/layercall-com/json-schema/layercall-com-phone-result-schema.json
📊
JSONSchema
https://artifacts.apis.io/layercall-com/json-schema/layercall-com-device-score-schema.json

Other Resources

🔗
APIsJSON
https://artifacts.apis.io/layercall-com/apis.yml

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OpenAPI Specification

layercall-com-ai-agents-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: LayerCall AI agents 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: AI agents
paths:
  /v1/verify/agent:
    post:
      tags:
      - AI agents
      summary: Verify an AI agent's HTTP Message Signature
      description: RFC 9421 / Web Bot Auth. Proves which agent sent a request, rather than inferring it from a User-Agent.
      responses:
        '200':
          description: Success
          content:
            application/json:
              schema:
                type: object
                properties:
                  agent:
                    nullable: true
                  docs:
                    type: string
                    example: https://www.layercall.com/docs/agents
                  expires_in:
                    nullable: true
                  keyid:
                    type: string
                    example: probe
                  processing_time_sec:
                    type: number
                    example: 0.214
                  purpose:
                    nullable: true
                  reason:
                    type: string
                    example: not_web_bot_auth
                  replay_protection:
                    type: string
                    example: signature-window
                  request_id:
                    type: string
                    example: req_5909ce2f-ea06-4388-b692-5abe07fc351d
                  verified:
                    type: boolean
                    example: false
              example:
                agent: null
                docs: https://www.layercall.com/docs/agents
                expires_in: null
                keyid: probe
                processing_time_sec: 0.214
                purpose: null
                reason: not_web_bot_auth
                replay_protection: signature-window
                request_id: req_5909ce2f-ea06-4388-b692-5abe07fc351d
                verified: false
          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:
              - url
              - headers
              properties:
                url:
                  type: string
                method:
                  type: string
                headers:
                  type: object
                  additionalProperties:
                    type: string
      operationId: postV1VerifyAgent
      x-operation-id-source: derived
  /v1/agent/authorize:
    post:
      tags:
      - AI agents
      summary: Decide whether to allow an agent request
      description: Applies your agent policy to a verified signature and returns allow, review or deny.
      responses:
        '200':
          description: Success
          content:
            application/json:
              schema:
                type: object
                properties:
                  agent:
                    type: object
                    properties:
                      expires_in:
                        nullable: true
                      host:
                        nullable: true
                      name:
                        nullable: true
                      publishes_card:
                        type: boolean
                        example: false
                      purpose:
                        nullable: true
                      rate_expectation:
                        nullable: true
                      signature_reason:
                        type: string
                        example: not_web_bot_auth
                      trigger:
                        nullable: true
                      verified:
                        type: boolean
                        example: false
                  decision:
                    type: string
                    example: deny
                  docs:
                    type: string
                    example: https://www.layercall.com/docs/agents
                  matched:
                    type: string
                    example: default:signature_failed
                  processing_time_sec:
                    type: number
                    example: 0.072
                  reason:
                    type: string
                    example: A Signature-Agent header was present but did not verify. An unverifiable claim of identity is worth less than no claim at all.
                  request_id:
                    type: string
                    example: req_1afc9f14-aef6-49cd-8524-f76fae58fbd2
                  requests_last_hour:
                    nullable: true
              example:
                agent:
                  expires_in: null
                  host: null
                  name: null
                  publishes_card: false
                  purpose: null
                  rate_expectation: null
                  signature_reason: not_web_bot_auth
                  trigger: null
                  verified: false
                decision: deny
                docs: https://www.layercall.com/docs/agents
                matched: default:signature_failed
                processing_time_sec: 0.072
                reason: A Signature-Agent header was present but did not verify. An unverifiable claim of identity is worth less than no claim at all.
                request_id: req_1afc9f14-aef6-49cd-8524-f76fae58fbd2
                requests_last_hour: null
          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:
              - url
              - headers
              properties:
                url:
                  type: string
                method:
                  type: string
                headers:
                  type: object
                  additionalProperties:
                    type: string
      operationId: postV1AgentAuthorize
      x-operation-id-source: derived
  /v1/agent/policy:
    get:
      tags:
      - AI agents
      summary: Read your agent policy
      responses:
        '200':
          description: Success
          content:
            application/json:
              schema:
                type: object
                properties:
                  defaults_apply_when_no_rule_matches:
                    type: boolean
                    example: true
                  docs:
                    type: string
                    example: https://www.layercall.com/docs/agents
                  processing_time_sec:
                    type: number
                    example: 0.331
                  request_id:
                    type: string
                    example: req_5d422a53-dd81-471f-9a22-56f646234324
                  rules:
                    type: array
                    items:
                      type: object
                      properties:
                        action:
                          type: string
                          example: deny
                        methods:
                          type: array
                          items:
                            type: string
                            example: POST
                        reason:
                          type: string
                          example: Write on nobody's behalf
                        trigger:
                          type: string
                          example: crawler
                  updated_at:
                    type: string
                    example: '2026-08-06T23:44:16.908+00:00'
              example:
                defaults_apply_when_no_rule_matches: true
                docs: https://www.layercall.com/docs/agents
                processing_time_sec: 0.331
                request_id: req_5d422a53-dd81-471f-9a22-56f646234324
                rules:
                - action: deny
                  methods:
                  - POST
                  reason: Write on nobody's behalf
                  trigger: crawler
                - action: allow
                  reason: A person asked for this
                  trigger: fetcher
                updated_at: '2026-08-06T23:44:16.908+00:00'
          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
      operationId: getV1AgentPolicy
      x-operation-id-source: derived
    put:
      tags:
      - AI agents
      summary: Replace your agent policy
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - rules
              properties:
                rules:
                  type: array
                  items:
                    type: object
      responses:
        '200':
          description: Success
          content:
            application/json:
              schema:
                type: object
                properties:
                  note:
                    type: string
                    example: Rules are evaluated in order; the first match wins. Defaults apply when none match.
                  rules:
                    type: array
                    items:
                      type: object
                      properties:
                        action:
                          type: string
                          example: deny
                        methods:
                          type: array
                          items:
                            type: string
                            example: POST
                        reason:
                          type: string
                          example: Write on nobody's behalf
                        trigger:
                          type: string
                          example: crawler
                  saved:
                    type: integer
                    example: 2
              example:
                note: Rules are evaluated in order; the first match wins. Defaults apply when none match.
                rules:
                - action: deny
                  methods:
                  - POST
                  reason: Write on nobody's behalf
                  trigger: crawler
                saved: 2
          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
      operationId: putV1AgentPolicy
      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