41st Parameter

The 41st Parameter, Inc. was a device-identification and web-fraud-detection company founded in 2004 and headquartered in Silicon Valley, with offices in Arizona, the UK, and Tokyo. Its device intelligence technology reduced fraud detection false positives for use cases such as new-account fraud, card-not-present (CNP) online transaction risk scoring, and account-takeover protection. Experian acquired the company in October 2013 and folded its device-recognition technology into Experian's global web-fraud and risk-based identity-authentication portfolio (FraudNet). 41st Parameter no longer operates as a standalone entity and publishes no independent developer portal, API, or documentation. This profile was surfaced as a portfolio company of kleiner-perkins and retained in the API Evangelist network as a historical record.

41st Parameter is profiled on the APIs.io network. Tagged areas include Company, Enterprise, Fraud Prevention, Device Intelligence, and Web Fraud.

📡 Profile data on GitHub

0 APIs

Company Enterprise Fraud Prevention Device IntelligenceWeb FraudIdentity Verification Account Takeover Acquired

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Biometrics Testing (biometric recognition vendors, identity verification depth)	undeclared	-	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Source (apis.yml)

aid: 41st-parameter
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/41st-parameter.png
name: 41st Parameter
description: The 41st Parameter, Inc. was a device-identification and web-fraud-detection company founded in 2004 and headquartered
  in Silicon Valley, with offices in Arizona, the UK, and Tokyo. Its device intelligence technology reduced fraud detection
  false positives for use cases such as new-account fraud, card-not-present (CNP) online transaction risk scoring, and account-takeover
  protection. Experian acquired the company in October 2013 and folded its device-recognition technology into Experian's global
  web-fraud and risk-based identity-authentication portfolio (FraudNet). 41st Parameter no longer operates as a standalone
  entity and publishes no independent developer portal, API, or documentation. This profile was surfaced as a portfolio company
  of kleiner-perkins and retained in the API Evangelist network as a historical record.
url: https://raw.githubusercontent.com/api-evangelist/41st-parameter/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- kleiner-perkins
x-tier: stub
x-tier-reason: acquired-defunct
x-status: acquired
x-acquired-by: experian
x-acquired-date: '2013-10-01'
x-founded: '2004'
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-17'
tags:
- Company
- Enterprise
- Fraud Prevention
- Device Intelligence
- Web Fraud
- Identity Verification
- Account Takeover
- Acquired
tags_raw:
- Company
- Enterprise
- Fraud Detection
- Device Intelligence
- Web Fraud
- Identity Verification
- Account Takeover
- Acquired
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

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