Fingerprint website screenshot

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
38.8/100 thin ▬ flat Agent 26/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0
AccessFreemiumSelf serve⚡ Free to try
1 APIs
Device IdentificationFraud PreventionBot DetectionSmart SignalsIdentity

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0
Composite quality — 38.8/100 · thin
Contract Quality 12.3 / 23
Developer Ergonomics 5.8 / 18
Access Clarity 8.5 / 18
Operational Transparency 2.8 / 12
Contract Governance 0.0 / 11
Discoverability 6.2 / 9
Create-or-Update Ergonomics 0.0 / 10
Agent readiness — 26/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
Documented Reversibility 0 / 6
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
Delegated User Identity 0 / 6
Protected Resource Metadata 0 / 5
Registration Without a Human 0 / 6
Agentic Commerce Well-Known Document 0 / 5
Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.
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 github.com/api-evangelist/fingerprint: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 5

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

Fingerprint Event Search API

Search identification events with filters.

Fingerprint Events API

Get and update individual identification events.

Fingerprint Related Visitors API

Find visitorIds likely belonging to the same person.

Fingerprint Visitors API

Get visit history and delete visitor data.

FingerprintJS Pro

Fraud detection API offering highly accurate browser fingerprinting

Open Collections 6

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Fingerprint Server Event Search API

OPEN COLLECTION

Fingerprint Server Event Search Events API

OPEN COLLECTION

Fingerprint Server Event Search Related Visitors API

OPEN COLLECTION

Fingerprint Server Event Search Visitors API

OPEN COLLECTION

Fingerprint Server API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Fingerprint Plans Pricing

3 plans

PLANS

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.

Fingerprint Finops

FINOPS

Security Posture 3

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

Fingerprint Authentication

apiKey · 2 schemes

SECURITY

Fingerprint Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Fingerprint Trust Center

SOC 2, ISO 27001, GDPR, CSA STAR

SECURITY

Agentic Access 1

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

Fingerprint Agentic Access

6 operations · 2 acting

6 operations · 2 acting

AGENTIC

Resources

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
LinkedIn
 Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
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.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
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: '0.23'
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:
  - Event
  tags_raw:
  - 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
- name: FingerprintJS Pro
  description: Fraud detection API offering highly accurate browser fingerprinting
  humanURL: https://dev.fingerprintjs.com/docs
  baseURL: https://dev.fingerprintjs.com/docs
  tags:
  - Security
  properties:
  - type: Documentation
    url: https://dev.fingerprintjs.com/docs
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

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this
  • find_providersBrowse and filter every provider in the catalog.
  • get_provider_artifactsEvery artifact this provider publishes, grouped by type.
  • get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
  • get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
  • get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
  • get_provider_ratingPRO — composite, band, trend and facet scores.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This provider 
curl "https://apis.io/api/v1/providers/fingerprint"
All providers 
curl "https://apis.io/api/v1/providers?limit=25"
Every operation they expose 
curl "https://apis.io/api/v1/providers/fingerprint/operations?limit=25"
How their score was established 
curl "https://apis.io/api/v1/providers/fingerprint/evidence"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.