layercall-com

LayerCall provides a trust intelligence API that scores IPs, emails, phones, domains, and devices for fraud risk in a single call. It offers free and paid tiers, detecting VPNs, proxies, Tor, bots, and device fingerprints, helping prevent fake signups and account takeover. The service is RESTful, supports any platform, and includes detailed risk scores from 0 to 100.

layercall-com publishes 7 API contracts indexed on the APIs.io network, including AI agents API, Batch API, Device API, and 4 more. Tagged areas include Company, FraudDetection, TrustIntelligence, API, and Security.

The layercall-com catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

layercall-com’s developer surface includes signup flow, sandbox, authentication, documentation, engineering blog, pricing, and 24 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

63.8/100 strong Agent 49/100 agent ready Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

1 published contract 1 MCP Servers 7 Agent Skills

CompanyFraudDetectionTrustIntelligenceAPISecurity

Kin Score

Kin Score How this is scored →
scored 2026-10-31 · rubric v0.25.0

Composite quality — 63.8/100 · strong

Contract Quality 13.3 / 21

Developer Ergonomics 5.3 / 17

Access Clarity 12.4 / 17

Operational Transparency 6.5 / 11

Contract Governance 8.1 / 10

Discoverability 5.5 / 9

Regulatory Posture 6.0 / 15

Agent readiness — 49/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 6 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too
Agentic Commerce Well-Known Document +5 pts — a parsing /.well-known/ucp.json or acp.json declaring a version and at least one service — `self` when its endpoints are on the provider's own domain, `platform` when they are on a vendor's

4 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Developer Ergonomics scores 31.0 — up to +13.8 composite points
Contract Quality scores 62.5 — up to +9.4 composite points
Operational Transparency scores 58.4 — up to +5.4 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/layercall-com/apis.yml: open an issue on github.com/api-evangelist/layercall-com to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 7

Individual APIs this provider publishes, each with its own machine-readable definition.

layercall-com AI agents API

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

layercall-com Batch API

The Batch API from layercall-com — 1 operation(s) for batch.

layercall-com Device API

Fingerprint reputation and bot detection.

layercall-com Reputation API

The Reputation API from layercall-com — 2 operation(s) for reputation.

layercall-com Rules API

The Rules API from layercall-com — 3 operation(s) for rules.

layercall-com Scoring API

Risk scores for a single signal type.

layercall-com Unified API

One call across every signal on a signup.

Scroll for all 7

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

layercall-com MCP Server

Remote MCP server at www.layercall.com requiring an API key.

MCP SERVER

Agent Skills 7

Packaged agent skills for driving this provider's APIs from an AI assistant.

lookup-phone

AGENT SKILL

score-device

AGENT SKILL

score-domain

AGENT SKILL

score-ip

AGENT SKILL

score-user

AGENT SKILL

verify-agent

AGENT SKILL

verify-email

AGENT SKILL

Scroll for all 7

Pricing Plans 1

Published pricing tiers and plan structures.

Layercall Com Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Layercall Com Rate Limits

1 limits

RATE LIMITS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Layercall Com Context

8 classes · 40 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

layercall-com API Rules

13 rules · 11 errors 1 warnings 1 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Layercall Com Openapi Overlay

0 actions · update

UNRECORDED

JSON Schema 6

Standalone JSON Schema definitions for this provider's data models.

DeviceScore

11 properties

JSON SCHEMA

DomainResult

13 properties

JSON SCHEMA

EmailResult

22 properties

JSON SCHEMA

IpScore

16 properties

JSON SCHEMA

PhoneResult

13 properties

JSON SCHEMA

UserScore

12 properties

JSON SCHEMA

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Layercall Com Authentication

apiKey/http · 2 schemes

SECURITY

Layercall Com Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Layercall Com Vulnerability Disclosure

security.txt · contact published

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Layercall Com Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Layercall Com Agentic Access

19 operations · 12 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

SignUp

SignUp

Sandbox

Sandbox

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

LLMsTxt

MCPServer

WellKnown

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

ErrorCatalog

Conformance

Webhooks

Scroll for all 7

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 6

Authentication, authorization, and security posture

Security

SecurityTxt

SecurityTxt

Authentication

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

StatusPage

StatusPage

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: layercall-com
name: layercall-com
image: https://www.layercall.com/opengraph-image?90b5402459d9ca5e
description: LayerCall provides a trust intelligence API that scores IPs, emails, phones, domains, and devices for fraud risk
  in a single call. It offers free and paid tiers, detecting VPNs, proxies, Tor, bots, and device fingerprints, helping prevent
  fake signups and account takeover. The service is RESTful, supports any platform, and includes detailed risk scores from
  0 to 100.
url: https://artifacts.apis.io/layercall-com/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-30 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-30'
modified: '2026-10-30'
tags:
- Company
- FraudDetection
- TrustIntelligence
- API
- Security
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/layercall-com-agentic-access.yml
- type: Plans
  url: plans/layercall-com-plans-pricing.yml
- type: Spectral
  url: rules/layercall-com-rules.yml
- type: JSONLD
  url: json-ld/layercall-com-context.jsonld
- type: Vocabulary
  url: vocabulary/layercall-com-vocabulary.yml
- type: DataModel
  url: data-model/layercall-com-data-model.yml
- type: Security
  url: https://www.layercall.com/terms
- type: ErrorCatalog
  url: errors/layercall-com-problem-types.yml
- type: Conformance
  url: conformance/layercall-com-conformance.yml
- type: LLMsTxt
  url: llms/layercall-com-llms.txt
- type: MCPServer
  url: mcp/layercall-com-mcp.yml
- type: SecurityTxt
  url: well-known/layercall-com-security.txt
- type: SecurityTxt
  url: well-known/layercall-com-layercall-security.txt
- type: WellKnown
  url: well-known/layercall-com-well-known.yml
- type: Hosts
  url: hosts/layercall-com-hosts.yml
- type: Vendors
  url: vendors/layercall-com-vendors.yml
- type: Webhooks
  url: https://www.layercall.com/integrations/webhooks
- type: StatusPage
  url: https://www.layercall.com/status
- type: SignUp
  url: https://www.layercall.com/demo/signup
- type: Sandbox
  url: https://www.layercall.com/playground
- type: GitHubOrganization
  url: https://github.com/LayerCall
- type: Authentication
  url: authentication/layercall-com-authentication.yml
- type: VulnerabilityDisclosure
  url: security/layercall-com-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/layercall-com-domain-security.yml
- type: Website
  url: https://www.layercall.com/
- type: Documentation
  url: https://www.layercall.com/docs
- type: Blog
  url: https://www.layercall.com/blog
- type: Pricing
  url: https://www.layercall.com/pricing
- type: TermsOfService
  url: https://www.layercall.com/terms
- type: PrivacyPolicy
  url: https://www.layercall.com/privacy
apis:
- aid: layercall-com:layercall-com-ai-agents-api
  name: layercall-com AI agents API
  description: The AI agents API from layercall-com — 3 operation(s) for ai agents.
  humanURL: https://www.layercall.com/docs/reference
  baseURL: https://www.layercall.com
  tags:
  - AI agents
  properties:
  - type: OpenAPI
    url: openapi/layercall-com-ai-agents-api-openapi.yml
  - type: JSONSchema
    url: json-schema/layercall-com-email-result-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-ip-score-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-user-score-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-domain-result-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-phone-result-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-device-score-schema.json
- aid: layercall-com:layercall-com-batch-api
  name: layercall-com Batch API
  description: The Batch API from layercall-com — 1 operation(s) for batch.
  humanURL: https://www.layercall.com/docs/reference
  baseURL: https://www.layercall.com
  tags:
  - Batch
  properties:
  - type: OpenAPI
    url: openapi/layercall-com-batch-api-openapi.yml
  - type: JSONSchema
    url: json-schema/layercall-com-email-result-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-ip-score-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-user-score-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-domain-result-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-phone-result-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-device-score-schema.json
- aid: layercall-com:layercall-com-device-api
  name: layercall-com Device API
  description: Fingerprint reputation and bot detection.
  humanURL: https://www.layercall.com/docs/reference
  baseURL: https://www.layercall.com
  tags:
  - Device
  properties:
  - type: OpenAPI
    url: openapi/layercall-com-device-api-openapi.yml
  - type: JSONSchema
    url: json-schema/layercall-com-email-result-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-ip-score-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-user-score-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-domain-result-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-phone-result-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-device-score-schema.json
- aid: layercall-com:layercall-com-reputation-api
  name: layercall-com Reputation API
  description: The Reputation API from layercall-com — 2 operation(s) for reputation.
  humanURL: https://www.layercall.com/docs/reference
  baseURL: https://www.layercall.com
  tags:
  - Reputation
  properties:
  - type: OpenAPI
    url: openapi/layercall-com-reputation-api-openapi.yml
  - type: JSONSchema
    url: json-schema/layercall-com-email-result-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-ip-score-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-user-score-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-domain-result-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-phone-result-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-device-score-schema.json
- aid: layercall-com:layercall-com-rules-api
  name: layercall-com Rules API
  description: The Rules API from layercall-com — 3 operation(s) for rules.
  humanURL: https://www.layercall.com/docs/reference
  baseURL: https://www.layercall.com
  tags:
  - Rules
  properties:
  - type: OpenAPI
    url: openapi/layercall-com-rules-api-openapi.yml
  - type: JSONSchema
    url: json-schema/layercall-com-email-result-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-ip-score-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-user-score-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-domain-result-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-phone-result-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-device-score-schema.json
- aid: layercall-com:layercall-com-scoring-api
  name: layercall-com Scoring API
  description: Risk scores for a single signal type.
  humanURL: https://www.layercall.com/docs/reference
  baseURL: https://www.layercall.com
  tags:
  - Scoring
  properties:
  - type: OpenAPI
    url: openapi/layercall-com-scoring-api-openapi.yml
  - type: JSONSchema
    url: json-schema/layercall-com-email-result-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-ip-score-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-user-score-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-domain-result-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-phone-result-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-device-score-schema.json
- aid: layercall-com:layercall-com-unified-api
  name: layercall-com Unified API
  description: One call across every signal on a signup.
  humanURL: https://www.layercall.com/docs/reference
  baseURL: https://www.layercall.com
  tags:
  - Unified
  properties:
  - type: OpenAPI
    url: openapi/layercall-com-unified-api-openapi.yml
  - type: JSONSchema
    url: json-schema/layercall-com-email-result-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-ip-score-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-user-score-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-domain-result-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-phone-result-schema.json
  - type: JSONSchema
    url: json-schema/layercall-com-device-score-schema.json
x-enrichment:
  date: '2026-10-30'
  status: enriched
  artifacts_added: 23
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

layercall-com API — frequently asked questions

Does layercall-com have an API?

Yes. APIs.io lists 7 APIs from layercall-com, including layercall-com AI agents API, layercall-com Batch API and layercall-com Device API, and 4 more.

Is there an OpenAPI specification for the layercall-com API?

Yes. APIs.io indexes 7 OpenAPI specifications for layercall-com, each linked for download from this page.

How do I authenticate with the layercall-com API?

layercall-com uses bearer-token authentication (apiKey/http · 2 schemes). The details are profiled on APIs.io as Layercall Com Authentication.

How much does the layercall-com API cost?

APIs.io lists 4 pricing plans for layercall-com, with each plan's price, limits and inclusions under Pricing Plans on this page.

Does layercall-com have an MCP server?

Yes. APIs.io lists 1 MCP server for layercall-com: Remote MCP server at www.layercall.com requiring an API key.

Is the layercall-com API ready for AI agents?

layercall-com has a Kin Score of 63.8 out of 100 (strong) and an Agent Readiness score of 49.1 (agent-ready), scored by API Evangelist on 2026-10-31.

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