#erc

A live, queryable index of every Ethereum Improvement Proposal (EIP) and ERC token standard, read keyless straight from the canonical ethereum/EIPs and ethereum/ERCs repositories. Look up any proposal by number for its title, status (Draft, Review, Last Call, Final, Living, Stagnant or Withdrawn), type and category, authors, creation date, what it requires and its abstract; pull several proposals at once; or list the whole catalog of 1,500+ EIPs and ERCs. The reference layer for wallets, block explorers, documentation sites and developer tooling that need to resolve "what is EIP-1559" or "is ERC-4626 final yet" programmatically instead of scraping a website. Always current — read live from the source repos, lightly cached.

api.oanor.com/eipregistry-api

Tell what kind of contract an address actually is — live, by asking the chain itself. It probes the contract over the public JSON-RPC (eth_call, no key): an ERC-165 interface sweep (ERC-721, ERC-1155 and their metadata/enumerable/royalty extensions) plus an ERC-20 function probe (name, symbol, decimals, totalSupply), and classifies the address as an ERC-20 token, an NFT (ERC-721), a multi-token (ERC-1155), a plain contract or an externally-owned account. A dedicated endpoint returns a token's live on-chain ERC-20 metadata — working for ANY token, including brand-new ones no token list has yet indexed. The "what is this address" primitive every wallet, explorer, scanner and security tool needs, across Ethereum, Base, Arbitrum, Optimism, BNB, Polygon and more. Reads straight from the chain; live, short cache only.

api.oanor.com/ercdetector-api