ExploreYC

REST API for Y Combinator and a16z startup data

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Added Jul 2026

exploreyc.com

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What is Exploreyc?

ExploreYC provides a read-only REST API for accessing comprehensive data on Y Combinator and a16z portfolio companies, including funding details, stage, exits, founders, and more. It delivers JSON over HTTPS with multiple endpoints for searching, filtering, and analyzing startup data. Built for developers, researchers, and analysts who need programmatic access to curated venture capital portfolio information.

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Key Features of Exploreyc

Y Combinator and a16z portfolio company database
Full-text search over company names and descriptions
Funding, stage, and exit data
Founder information
Company filtering by industry and country
Aggregate portfolio statistics
Geo-located company mapping
Batch-specific wrapped analytics
JSON over HTTPS
Interactive Swagger documentation

Who Should Use Exploreyc?

Research venture capital portfolio trends

Analyze startup funding patterns by batch and industry

Build applications on top of YC startup data

Track company exits and funding milestones

Study geographic distribution of portfolio companies

Access founder and company information for due diligence

Exploreyc: Pros & Cons

✓Pros

Free tier with 5 requests per day
Multiple pricing tiers for different usage needs
Comprehensive data on two major VC portfolios
Easy authentication with API key
Clear rate limiting and error handling
Interactive API documentation

Frequently Asked Questions about Exploreyc

What data does ExploreYC API provide?

ExploreYC provides access to Y Combinator and a16z portfolio company data including funding details, stage, exits, founders, and company information via REST API endpoints.

What is the free tier limit?

The free tier allows 5 requests per day at no cost.

How do I authenticate requests to the API?

Authentication requires your API key passed as a bearer token in the Authorization header or as an X-API-Key header.

What happens if I exceed my rate limit?

The API returns a 429 error with a Retry-After header indicating when you can make your next request.

Can I search for specific companies?

Yes, the /search endpoint provides full-text search over company names, one-liners, and descriptions, and you can filter by industry and country.