Fingerprint

Fingerprint (formerly FingerprintJS) is a device-identification and fraud-prevention platform. Its browser and mobile agents generate a stable visitorId, and the Server API returns detailed identification events enriched with Smart Signals (bot, VPN, proxy, tampering, emulator, and more) for account takeover, payment fraud, and bot-mitigation use cases.

Fingerprint publishes 4 APIs on the APIs.io network, including Event Search API, Events API, Related Visitors API, and 1 more. Tagged areas include Device Identification, Fraud Prevention, Bot Detection, Smart Signals, and Identity.

Fingerprint’s developer surface includes authentication, documentation, engineering blog, and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub

39.7/100 thin ▬ flat Agent 38/100 agent ready Full breakdown ↓
scored 2026-07-28 · rubric v0.6

AccessFreemiumSelf serve⚡ Free to try

4 APIs

Device IdentificationFraud PreventionBot DetectionSmart SignalsIdentity

Kin Score

Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6

Composite quality — 39.7/100 · thin

Contract Quality 15.1 / 25

Developer Ergonomics 4.3 / 20

Commercial Clarity 9.5 / 20

Operational Transparency 3.4 / 13

Governance 0.0 / 12

Discoverability 7.4 / 10

Agent readiness — 38/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/fingerprint: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 4

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

Rate Limits 1

Documented rate limits and quota policies.

Fingerprint Rate Limits

2 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

TrustCenter

TrustCenter

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Source (apis.yml)

aid: fingerprint
url: https://raw.githubusercontent.com/api-evangelist/fingerprint/refs/heads/main/apis.yml
name: Fingerprint
kind: company
description: Fingerprint (formerly FingerprintJS) is a device-identification and fraud-prevention platform. Its browser and
  mobile agents generate a stable visitorId, and the Server API returns detailed identification events enriched with Smart
  Signals (bot, VPN, proxy, tampering, emulator, and more) for account takeover, payment fraud, and bot-mitigation use cases.
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/fingerprint.png
tags:
- Device Identification
- Fraud Prevention
- Bot Detection
- Smart Signals
- Identity
created: '2026-06-25'
modified: '2026-06-25'
specificationVersion: '0.19'
apis:
- aid: fingerprint:fingerprint-event-search-api
  name: Fingerprint Event Search API
  description: Search identification events with filters.
  humanURL: https://dev.fingerprint.com/reference/getevent
  baseURL: https://api.fpjs.io
  tags:
  - Event Search
  properties:
  - type: OpenAPI
    url: openapi/fingerprint-event-search-api-openapi.yml
  - type: Documentation
    url: https://dev.fingerprint.com/docs/server-api
  - type: APIReference
    url: https://dev.fingerprint.com/reference/getevent
  - type: PostmanCollection
    url: collections/fingerprint.postman_collection.json
  - type: OpenCollection
    url: collections/fingerprint.opencollection.json
  - type: APIReference
    url: https://dev.fingerprint.com/reference/searchevents
  - type: APIReference
    url: https://dev.fingerprint.com/reference/getvisits
  - type: APIReference
    url: https://dev.fingerprint.com/reference/getrelatedvisitors
  - type: Documentation
    url: https://dev.fingerprint.com/docs/smart-signals-overview
  - type: Documentation
    url: https://dev.fingerprint.com/docs/webhooks
  - type: Documentation
    url: https://dev.fingerprint.com/docs/sealed-client-results
- aid: fingerprint:fingerprint-events-api
  name: Fingerprint Events API
  description: Get and update individual identification events.
  humanURL: https://dev.fingerprint.com/reference/getevent
  baseURL: https://api.fpjs.io
  tags:
  - Events
  properties:
  - type: OpenAPI
    url: openapi/fingerprint-events-api-openapi.yml
  - type: Documentation
    url: https://dev.fingerprint.com/docs/server-api
  - type: APIReference
    url: https://dev.fingerprint.com/reference/getevent
  - type: PostmanCollection
    url: collections/fingerprint.postman_collection.json
  - type: OpenCollection
    url: collections/fingerprint.opencollection.json
  - type: APIReference
    url: https://dev.fingerprint.com/reference/searchevents
  - type: APIReference
    url: https://dev.fingerprint.com/reference/getvisits
  - type: APIReference
    url: https://dev.fingerprint.com/reference/getrelatedvisitors
  - type: Documentation
    url: https://dev.fingerprint.com/docs/smart-signals-overview
  - type: Documentation
    url: https://dev.fingerprint.com/docs/webhooks
  - type: Documentation
    url: https://dev.fingerprint.com/docs/sealed-client-results
- aid: fingerprint:fingerprint-related-visitors-api
  name: Fingerprint Related Visitors API
  description: Find visitorIds likely belonging to the same person.
  humanURL: https://dev.fingerprint.com/reference/getevent
  baseURL: https://api.fpjs.io
  tags:
  - Related Visitors
  properties:
  - type: OpenAPI
    url: openapi/fingerprint-related-visitors-api-openapi.yml
  - type: Documentation
    url: https://dev.fingerprint.com/docs/server-api
  - type: APIReference
    url: https://dev.fingerprint.com/reference/getevent
  - type: PostmanCollection
    url: collections/fingerprint.postman_collection.json
  - type: OpenCollection
    url: collections/fingerprint.opencollection.json
  - type: APIReference
    url: https://dev.fingerprint.com/reference/searchevents
  - type: APIReference
    url: https://dev.fingerprint.com/reference/getvisits
  - type: APIReference
    url: https://dev.fingerprint.com/reference/getrelatedvisitors
  - type: Documentation
    url: https://dev.fingerprint.com/docs/smart-signals-overview
  - type: Documentation
    url: https://dev.fingerprint.com/docs/webhooks
  - type: Documentation
    url: https://dev.fingerprint.com/docs/sealed-client-results
- aid: fingerprint:fingerprint-visitors-api
  name: Fingerprint Visitors API
  description: Get visit history and delete visitor data.
  humanURL: https://dev.fingerprint.com/reference/getevent
  baseURL: https://api.fpjs.io
  tags:
  - Visitors
  properties:
  - type: OpenAPI
    url: openapi/fingerprint-visitors-api-openapi.yml
  - type: Documentation
    url: https://dev.fingerprint.com/docs/server-api
  - type: APIReference
    url: https://dev.fingerprint.com/reference/getevent
  - type: PostmanCollection
    url: collections/fingerprint.postman_collection.json
  - type: OpenCollection
    url: collections/fingerprint.opencollection.json
  - type: APIReference
    url: https://dev.fingerprint.com/reference/searchevents
  - type: APIReference
    url: https://dev.fingerprint.com/reference/getvisits
  - type: APIReference
    url: https://dev.fingerprint.com/reference/getrelatedvisitors
  - type: Documentation
    url: https://dev.fingerprint.com/docs/smart-signals-overview
  - type: Documentation
    url: https://dev.fingerprint.com/docs/webhooks
  - type: Documentation
    url: https://dev.fingerprint.com/docs/sealed-client-results
common:
- type: AgenticAccess
  url: agentic-access/fingerprint-agentic-access.yml
- type: TrustCenter
  url: security/fingerprint-trust-center.yml
- type: DomainSecurity
  url: security/fingerprint-domain-security.yml
- type: Authentication
  url: authentication/fingerprint-authentication.yml
- type: GitHubOrganization
  url: https://github.com/fingerprintjs
- type: LinkedIn
  url: https://www.linkedin.com/company/fingerprintjs
- type: Website
  url: https://fingerprint.com
- type: Documentation
  url: https://dev.fingerprint.com/docs
- type: Plans
  url: plans/fingerprint-plans-pricing.yml
- type: RateLimits
  url: rate-limits/fingerprint-rate-limits.yml
- type: FinOps
  url: finops/fingerprint-finops.yml
- url: https://fingerprint.com/rss.xml
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Fingerprint

Kin Score

APIs 4

Fingerprint Event Search API

Fingerprint Events API

Fingerprint Related Visitors API

Fingerprint Visitors API

Open Collections 1

Fingerprint Server API

Pricing Plans 1

Fingerprint Plans Pricing

Rate Limits 1

Fingerprint Rate Limits

FinOps 1

Fingerprint Finops

Security Posture 3

Fingerprint Authentication

Fingerprint Domain Security

Fingerprint Trust Center

Agentic Access 1

Fingerprint Agentic Access

Resources