# Y Combinator API — Companies, Founders & Batches | Anysite

> 3 endpoints over the YC directory — search 4,000+ YC-backed companies by keyword, batch, or industry, and trace founder profiles across every cohort.

URL: https://anysite.io/sources/yc/
Canonical: https://anysite.io/sources/yc/
Language: en
Generated: 2026-10-01

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// 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.

[Start for free](https://app.anysite.io/register?lang=en) 7-day free trial

## What You Can Pull From Y Combinator

/api/yc/search/companies Search by keyword, batch (W24, S23), or industry

/api/yc/company Full company profile: description, founders, status, website

/api/yc/search/founders Search 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

[Outbound](https://anysite.io/use-cases/outbound/) [Market Research](https://anysite.io/use-cases/market-research/) [Competitor Analysis](https://anysite.io/use-cases/competitor-analysis/) [Finance Research](https://anysite.io/use-cases/finance-research/)

## Map Every Batch in One Ask

Companies, founders, and cohorts as typed endpoints — 3 endpoints here, 900+ sources on the same key.

[Start for free](https://app.anysite.io/register?lang=en)

## Common Questions

How do I find companies from a specific batch?

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.

Can I combine YC data with other sources?

Yes — the same key covers 900+ sources, so a batch search can feed people and company profile endpoints for founder career data and team-growth signals, or SEC EDGAR for YC alumni that have gone public.

What’s covered, and how current is it?

The endpoints cover the public YC directory — 4,000+ companies across every cohort, with descriptions, founders, status, and website. Profiles are pulled at ask time, so status changes show up as the directory records them.