Stilta website screenshot

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.

20.4/100 emerging ▬ flat Agent 23/100 agent aware Front door AI 6/6 dominant saas Full breakdown ↓
scored 2026-09-25 · rubric v0.23.0
AccessSelf serve
1 APIs
CompanyPatentsIntellectual PropertyLegal TechArtificial IntelligenceAI AgentsPatent SearchPrior Art

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-25 · rubric v0.23.0
Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.
Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.
The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
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/stilta: 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 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

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Access & Security 4

Authentication, authorization, and security posture

Operate 1

Status, limits, changes, and where to get help

Commercial 2

Pricing, plans, and the legal terms of use

Company 3

The organization behind the API

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
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
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: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
image: https://www.stilta.com/favicon.ico
tags:
- Company
- Patents
- Intellectual Property
- Legal Tech
- Artificial Intelligence
- AI Agents
- Patent Search
- Prior Art
tags_raw:
- 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

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