Stilta

Stilta is an agentic AI platform for high-stakes patent and intellectual property work, backed by a16z, NVIDIA, and Y Combinator (W26). Its agents automate evidence gathering and analysis across 180M+ patents, scientific literature, and archived web content to deliver source-cited invalidity analysis, infringement analysis, and freedom-to-operate assessments for in-house IP teams and intellectual property law firms. The platform markets a defensible first answer in roughly seventeen minutes, fully autonomous, with citations pulled from original documents. Stilta exposes a first-party backend API (api.stilta.com, "Patrona Patent Search Platform API") and a PropelAuth-based OpenID Connect identity surface at auth.stilta.com, but does not publish public developer documentation, an OpenAPI specification, or SDKs at this time. This profile was surfaced as an a16z / Y Combinator portfolio company and enriched from Stilta's public web surface.

Stilta publishes 1 API on the APIs.io network. Tagged areas include Company, Patents, Intellectual Property, Legal Tech, and Artificial Intelligence.

Stilta’s developer surface includes support, engineering blog, authentication, and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub
22.7/100 emerging ▬ flat Agent 14/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessSelf serve
1 APIs
CompanyPatentsIntellectual PropertyLegal TechArtificial IntelligenceAgentic AIPatent SearchPrior Art

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 22.7/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 3.5 / 20
Commercial Clarity 10.0 / 20
Operational Transparency 0.0 / 13
Governance 0.0 / 12
Discoverability 9.3 / 10
Agent readiness — 14/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
MCP Server 0 / 12
Machine-Readable Auth 10 / 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 4 / 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/stilta: 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 1

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

Stilta Platform API

First-party backend API for the Stilta / Patrona patent search platform. Live and rate-limited (600 req window observed) but undocumented publicly — no OpenAPI, no developer doc...

Security Posture 3

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

Stilta Authentication

openIdConnect/oauth2 · 2 schemes

SECURITY

Stilta Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Stilta Trust Center

SOC 2, ISO 27001, GDPR

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

Login
Login

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

WellKnown
WellKnown

Access & Security 4

Authentication, authorization, and security posture

TrustCenter
TrustCenter
 Compliance
Compliance
 DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 1

Status, limits, changes, and where to get help

Support
Support

Commercial 2

Pricing, plans, and the legal terms of use

PrivacyPolicy
PrivacyPolicy
 TermsOfService
TermsOfService

Company 3

The organization behind the API

Website
Website
 Blog
Blog
 Careers
Careers

Source (apis.yml)

apis.yml Raw ↑ 
aid: stilta
name: Stilta
description: Stilta is an agentic AI platform for high-stakes patent and intellectual property work, backed by a16z, NVIDIA,
  and Y Combinator (W26). Its agents automate evidence gathering and analysis across 180M+ patents, scientific literature,
  and archived web content to deliver source-cited invalidity analysis, infringement analysis, and freedom-to-operate assessments
  for in-house IP teams and intellectual property law firms. The platform markets a defensible first answer in roughly seventeen
  minutes, fully autonomous, with citations pulled from original documents. Stilta exposes a first-party backend API (api.stilta.com,
  "Patrona Patent Search Platform API") and a PropelAuth-based OpenID Connect identity surface at auth.stilta.com, but does
  not publish public developer documentation, an OpenAPI specification, or SDKs at this time. This profile was surfaced as
  an a16z / Y Combinator portfolio company and enriched from Stilta's public web surface.
url: https://raw.githubusercontent.com/api-evangelist/stilta/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
- y-combinator
- nvidia
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
image: https://www.stilta.com/favicon.ico
tags:
- Company
- Patents
- Intellectual Property
- Legal Tech
- Artificial Intelligence
- Agentic AI
- Patent Search
- Prior Art
apis:
- name: Stilta Platform API
  description: First-party backend API for the Stilta / Patrona patent search platform. Live and rate-limited (600 req window
    observed) but undocumented publicly — no OpenAPI, no developer docs (docs_url is null; /openapi.json and /docs return
    404). Included for host coverage; not a published developer product.
  humanURL: https://www.stilta.com
  baseURL: https://api.stilta.com
  x-documented: false
  properties:
  - type: WellKnown
    url: well-known/stilta-well-known.yml
  - type: Authentication
    url: authentication/stilta-authentication.yml
common:
- type: TrustCenter
  url: security/stilta-trust-center.yml
- type: Compliance
  url: https://trust.stilta.com/
- type: DomainSecurity
  url: security/stilta-domain-security.yml
- type: Website
  url: https://www.stilta.com
- type: Login
  url: https://auth.stilta.com/en/login
- type: PrivacyPolicy
  url: https://www.stilta.com/dpa/privacy-policy
- type: TermsOfService
  url: https://www.stilta.com/dpa/terms
- type: Support
  url: https://www.stilta.com/contact-us
- type: Blog
  url: https://www.stilta.com/news-page
- type: Careers
  url: https://www.stilta.com/careers
- type: WellKnown
  url: well-known/stilta-well-known.yml
- type: Authentication
  url: authentication/stilta-authentication.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 4
  pass: local-v1