EVM Chains API
A live directory of every EVM-compatible blockchain, keyless. Look up any chain by its chain ID or by name and get its native currency, public RPC endpoints, block explorers, info URL, faucets and testnet flag; search the 2,600+ networks; or just get a chain working public RPC URLs. The networks / chain-ID layer for wallets, dapps, RPC routers, block explorers and multi-chain tooling. Live, nothing stored beyond a short cache. Backed by the open chainid.network (ethereum-lists/chains) registry.
api.oanor.com/evmchains-api