319 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.
Native-coin balance + ERC-20 token balances (raw + human) for any address on Base, Ethereum, Arbitrum, Optimism, Polygon or BNB (default Base). On Base pass token symbols or 0x addresses (or a default common set); on oth...
Which block was the chain at at this time? Pass ?chain= (ethereum, base, arc or bnb) and ?time= (ISO date-time or unix seconds, from 2015 to now). Returns the last block whose timestamp is at or before the time: number,...
Ethereum mainnet JSON-RPC from an independently operated full node. One call per payment, no account or API key. Serves eth_, net_ and web3_ methods. Blocks, transactions, receipts and logs from the Merge (block 15537394...
ABI-decode return data against declared types — Genesis402 / UnyKorn Operator Network
ABI-encode a list of typed parameters — Genesis402 / UnyKorn Operator Network
Predict a contract address before it is deployed — Genesis402 / UnyKorn Operator Network
RLP-encode a value or nested list — Genesis402 / UnyKorn Operator Network
Split calldata into its selector and 32-byte words — Genesis402 / UnyKorn Operator Network
Compute the storage slot of a Solidity mapping entry — Genesis402 / UnyKorn Operator Network
Function selector from a Solidity signature — Genesis402 / UnyKorn Operator Network
ENS namehash and labelhash for a name — Genesis402 / UnyKorn Operator Network
Convert between wei, gwei, ether and token units — Genesis402 / UnyKorn Operator Network
Reference data for a supported EVM chain — Genesis402 / UnyKorn Operator Network
EIP-55 checksum an Ethereum address, and check one — Genesis402 / UnyKorn Operator Network
Recover which address signed a message — Genesis402 / UnyKorn Operator Network
Derive an Ethereum address from a public key — Genesis402 / UnyKorn Operator Network
EIP-191 digest of a message (what personal_sign actually signs) — Genesis402 / UnyKorn Operator Network
Event topic0 from a Solidity event signature — Genesis402 / UnyKorn Operator Network
DNS lookup: A, AAAA, MX, TXT, NS, CNAME, CAA, SOA, SRV via public resolvers — Genesis402 / UnyKorn Operator Network
EIP-712 typed-data digest — Genesis402 / UnyKorn Operator Network
Pad hex to a fixed byte width — Genesis402 / UnyKorn Operator Network
Live status and details of a transaction by hash: success/failed/pending, from/to, value (wei + ether), nonce, block number, gas used, effective gas price and any created contract address. Returns `found:false` for unkno...
Is this Ethereum address a contract or a wallet? EOA, EIP-7702 delegated wallet or smart contract, bytecode size, ETH balance and ERC-20 symbol. Safety check before sending funds.
ERC-20 token info on Ethereum: name, symbol, decimals and total supply of any token contract on Ethereum mainnet, read live via eth_call.