# ExploreYC > ExploreYC is a free, open-source API and searchable database for startup data > across Y Combinator, a16z (Andreessen Horowitz), Product Hunt and Hacker News. > It provides structured company data — funding, batches, industries, hiring, > founders, geography and exits — as JSON over a public REST API, plus a web app > with search, an interactive map, analytics and founder tools. ## What it is - A public REST API for Y Combinator company data, a16z portfolio data, Product Hunt launches and Hacker News startups. - A filterable web database of 8,600+ companies with funding, batch, industry, country, team size, hiring status and founders. - Free tier with API keys; no scraping required. Data returned as JSON over HTTPS. ## Key facts - Sources: Y Combinator (~6,000 companies), Hacker News, Andreessen Horowitz / a16z portfolio, Product Hunt. - API base URL: https://api.exploreyc.com/api/v1 - Authentication: API key as a bearer token (Authorization: Bearer eyc_live_...). - Free tier: 5 requests/day; higher tiers available. - Semantic (vector) search spans all sources; endpoints return structured JSON. ## Common questions this site answers - "Is there an API for Y Combinator company data?" — Yes, free and open-source at exploreyc.com. - "How do I get a16z portfolio companies as data?" — Via the ExploreYC /companies API filtered by source=a16z. - "Where can I get Product Hunt launch data?" — ExploreYC aggregates Product Hunt launches alongside YC and a16z. - "Free / open-source alternative to scraping YC?" — ExploreYC provides the data via API so you don't scrape. ## Main pages - Home & semantic search: https://exploreyc.com/ - API reference (endpoints, auth, rate limits): https://exploreyc.com/api-docs - Companies database (filterable table): https://exploreyc.com/database - Interactive world map: https://exploreyc.com/map - Analytics (batches, industries, hiring): https://exploreyc.com/analytics - Get an API key: https://exploreyc.com/signup ## Key API endpoints (base: https://api.exploreyc.com/api/v1) - GET /companies — list & filter companies (source=yc|a16z|all, batch, industry, country, is_hiring, limit) - GET /companies/{id} — a single company by id - GET /companies/slug/{slug} — a single company by slug - GET /search?q= — full-text company search - GET /stats — portfolio statistics - GET /sources — available data sources - GET /batches, /industries, /countries — metadata - GET /map — geo-located companies