Crosslayer Labs

Crosslayer Labs is a network and web-infrastructure security company spun out of a Princeton University security research lab. Its founding team invented Multi-Perspective Issuance Corroboration (MPIC), an industry standard now required of every publicly-trusted Certificate Authority, which secures the issuance of every HTTPS certificate (~8 million per day). The company protects enterprises from website and API hijacks by discovering, analyzing, and continuously monitoring every layer of first- and third-party network infrastructure, correlating attack signals across the network stack for advanced threat detection and rapid mitigation.

Crosslayer Labs is profiled on the APIs.io network. Tagged areas include Company, Security, Network Security, Web Infrastructure, and Certificate Authority.

Crosslayer Labs’ developer surface includes engineering blog, signup flow, and 5 more developer resources.

🌐 Visit website 📡 Source on GitHub

14.0/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanySecurityNetwork SecurityWeb InfrastructureCertificate AuthorityPKIThreat DetectionAttack SurfaceAPI SecurityCybersecurity

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 14.0/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 0.4 / 20

Commercial Clarity 6.8 / 20

Operational Transparency 0.0 / 13

Governance 0.0 / 12

Discoverability 6.8 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

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/crosslayer-labs: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Get Started 1

Portal, sign-up, and the first successful call

SignUp

SignUp

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Research

Research

Source (apis.yml)

aid: crosslayer-labs
name: Crosslayer Labs
description: Crosslayer Labs is a network and web-infrastructure security company spun out of a Princeton University security
  research lab. Its founding team invented Multi-Perspective Issuance Corroboration (MPIC), an industry standard now required
  of every publicly-trusted Certificate Authority, which secures the issuance of every HTTPS certificate (~8 million per day).
  The company protects enterprises from website and API hijacks by discovering, analyzing, and continuously monitoring every
  layer of first- and third-party network infrastructure, correlating attack signals across the network stack for advanced
  threat detection and rapid mitigation.
url: https://raw.githubusercontent.com/api-evangelist/crosslayer-labs/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- y-combinator
- long-journey-vc
- ae-investments
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
image: https://www.crosslayerlabs.com/favicon.ico
tags:
- Company
- Security
- Network Security
- Web Infrastructure
- Certificate Authority
- PKI
- Threat Detection
- Attack Surface
- API Security
- Cybersecurity
apis: []
common:
- type: DomainSecurity
  url: security/crosslayer-labs-domain-security.yml
- type: Website
  url: https://www.crosslayerlabs.com/
- type: Blog
  url: https://www.crosslayerlabs.com/blog
- type: Research
  url: https://www.crosslayerlabs.com/research
- type: SignUp
  url: https://calendly.com/henry-crosslayerlabs/30min
- type: TermsOfService
  url: https://www.crosslayerlabs.com/terms.html
- type: PrivacyPolicy
  url: https://www.crosslayerlabs.com/privacy.html
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