Petrarch

Petrarch is a Y Combinator (Summer 2026) data-marketplace company based in San Francisco that unlocks enterprise data for the AI economy. Petrarch sources proprietary, enterprise-facing datasets from distressed businesses and legacy industries such as construction, manufacturing, and logistics, clears and anonymizes them, and brokers them to AI companies and research labs building for the physical world. Notable data types transacted include construction plans, autonomous-driving recordings, and codebases. The company was founded by Harvard graduates Ian Lee, Samuel Hahn, and Sudhish Swain, with prior experience at organizations including Scale AI. As of this profile Petrarch operates a public marketing website but does not publish a public developer API, SDKs, or developer documentation.

Petrarch is profiled on the APIs.io network. Tagged areas include Company, Data Marketplace, Data Engineering, Enterprise Data, and Artificial Intelligence.

🌐 Visit website 📡 Source on GitHub

5.0/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

0 APIs

Company Data Marketplace Data Engineering Enterprise Data Artificial Intelligence B2B Marketplace Y Combinator

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 5.0/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 0.0 / 20

Access Clarity 0.0 / 20

Operational Transparency 0.0 / 13

Contract Governance 0.0 / 12

Discoverability 5.0 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

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

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 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.

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Security Posture 1

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

Petrarch Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: petrarch
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: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/petrarch.png
name: Petrarch
description: Petrarch is a Y Combinator (Summer 2026) data-marketplace company based in San Francisco that unlocks enterprise
  data for the AI economy. Petrarch sources proprietary, enterprise-facing datasets from distressed businesses and legacy
  industries such as construction, manufacturing, and logistics, clears and anonymizes them, and brokers them to AI companies
  and research labs building for the physical world. Notable data types transacted include construction plans, autonomous-driving
  recordings, and codebases. The company was founded by Harvard graduates Ian Lee, Samuel Hahn, and Sudhish Swain, with prior
  experience at organizations including Scale AI. As of this profile Petrarch operates a public marketing website but does
  not publish a public developer API, SDKs, or developer documentation.
url: https://raw.githubusercontent.com/api-evangelist/petrarch/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- y-combinator
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-20'
x-enrichment:
  date: '2026-07-20'
  status: nochange
  artifacts_added: 0
  pass: local-v1
tags:
- Company
- Data Marketplace
- Data Engineering
- Enterprise Data
- Artificial Intelligence
- B2B
- Marketplace
- Y Combinator
apis: []
common:
- type: DomainSecurity
  url: security/petrarch-domain-security.yml
- type: Website
  url: https://petrarch.co/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io

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