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Onesource · Chain Contract

Best-effort contract introspection via batched RPC - bytecode presence, token metadata, and ERC20-like/ERC721/ERC1155 classification

How to call it

curl -i -X GET https://api.onesource.io/api/chain/contract/:address

# It answers 402 Payment Required, with the price and where to pay.
# Pay with any x402 client, then send the same request again.

Uptime, grade and call counts come from other directories, not from us. A blank means nobody has measured it. It does not mean it is safe.

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