Crypto, Sports & Open Government – Public APIs Directory

About Crypto, Sports & Open Government

Popular public APIs with clear rate-limit policies across web3, sports, and civic data.

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Crypto, Sports & Open Government

CoinGecko API — Free tier, per‑minute caps
CoinMarketCap API — Paid tiers; quotas
Etherscan API — Per‑sec limits per key
Alchemy — Web3 infra with rate limits
Infura — Ethereum/IPFS with quotas
API‑FOOTBALL — Football data; per‑minute caps
TheSportsDB — Community sports data
Football‑Data.org — Free & paid tiers
US Govt. Data (Data.gov) — API key with rate limits
UK GOV.UK APIs — Directory of UK public APIs
EU Open Data Portal — APIs & datasets from EU
NASA APIs — Per‑hour/day limits per key
US Census Bureau — Data APIs with quotas