//Source · Business Intelligence
Y Combinator API — Map a Batch, Trace a Founder
Search 4,000+ YC-backed companies by keyword, batch, or industry, pull full company profiles, and trace founders across every cohort — map a batch or follow a founder’s history in one ask.
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What You Can Pull From Y Combinator
/api/yc/search/companiesSearch by keyword, batch (W24, S23), or industry
/api/yc/companyFull company profile: description, founders, status, website
/api/yc/search/foundersSearch founders by name or keyword
What Comes Back
{
"name": "Cartora",
"batch": "W24",
"status": "Active",
"industry": "B2B",
"one_liner": "Freight quotes for mid-market shippers",
"website": "https://cartora.example",
"founders": [
{ "name": "Dana Reyes", "title": "CEO" },
{ "name": "Ilya Fedorov", "title": "CTO" }
]
}Built for These Jobs
Map Every Batch in One Ask
Companies, founders, and cohorts as typed endpoints — 3 endpoints here, 500+ sources on the same key.
Common Questions
Pass the batch code — W24, S23, and so on — to /api/yc/search/companies, alone or combined with a keyword or industry filter. That’s how you map a cohort against an investment thesis or build a prospect list from the newest class.