213 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.
Token allowance, Ethereum ERC-20. ERC-20 token allowance on Ethereum: how much a spender may move from an owner's wallet (allowance), raw and in token units, and whether the approval is unlimited. Use to check an approva...
Eth call, Ethereum contract call. Read-only contract call on Ethereum (eth_call): send ABI-encoded calldata to a contract at the latest block and get the raw return data, without a transaction or gas. Use to read any vie...
Estimate gas, Ethereum. Estimate the gas a transaction would use on Ethereum (eth_estimateGas) and what it would cost at the current gas price, in gas units, gwei and ETH. Give to, plus value in ETH and calldata for a co...
Gas history, Ethereum gas price. Gas price history on Ethereum (eth_feeHistory): base fee in gwei for each of the last N blocks (5-100, default 20), how full each block was, and the 10th, 50th and 90th percentile priorit...
NFT balance, Ethereum. How many NFTs of one ERC-721 collection a wallet holds on Ethereum (balanceOf), with the collection's name and symbol. Use to check a holder before a token-gated action or to see whether a wallet s...
NFT metadata, Ethereum. NFT metadata on Ethereum: the token URI of one ERC-721 token id (tokenURI) and the JSON it points to (name, description, image, attributes), read from data: URIs, https or ipfs:// (through ipfs.io...
NFT owner, Ethereum. Owner of an NFT on Ethereum: the wallet that holds one ERC-721 token id right now (ownerOf), plus the collection's name and symbol. Use to verify who holds an NFT before a trade, a mint gate or an ai...
Proxy implementation, Ethereum. Find the implementation behind a proxy contract on Ethereum: reads the EIP-1967 implementation, beacon and admin slots, EIP-1822 (UUPS), the older OpenZeppelin layout and EIP-1167 minimal-...
Storage slot read, Ethereum. Read one raw storage slot of a contract on Ethereum (eth_getStorageAt): the 32-byte word, as a number and, when it holds one, as an address. Slot is a decimal index or a 0x 32-byte key (mappi...
On-Chain Bundle: multiple Ethereum mainnet reads in one paid call. Parts: eth_mainnet_token_verdict_preview, eth_mainnet_token_verdict. Returns: each named part service's own result, in one paid call, keyed by the part's...
On-Chain Bundle: multiple Ethereum mainnet reads in one paid call. Parts: eth_mainnet_token_verdict_preview, eth_token_verdict_v3. Returns: each named part service's own result, in one paid call, keyed by the part's name...
Solidity abi.encodePacked equivalent — Genesis402 / UnyKorn Operator Network
NFT owner and metadata link for an ERC721 token on Ethereum, Base, Arc or BNB Chain: the current owner, the collection name and symbol, and the tokenURI (with an IPFS gateway link when it is ipfs://). A token that does n...
Base gas price and fee estimate. Live gas prices on Base (chain 8453) read from the latest block: base fee and priority fee in gwei, suggested maxFeePerGas and maxPriorityFeePerGas in wei for an EIP-1559 transaction, how...
Ethereum contract check. Check whether a 0x address on Ethereum is a smart contract or a plain wallet: bytecode size, and whether it is an EIP-1167 minimal proxy and which implementation it points to. Use before sending...
Ethereum recent event logs. Recent contract event logs on Ethereum (eth_getLogs): the events a contract emitted over the last N blocks (1-1,000, default 50), optionally filtered by topic0 (the 0x 32-byte event signature...
Ethereum account nonce. Read the transaction count (nonce) of a 0x address on Ethereum, both confirmed and including pending transactions. Use to build the next transaction or to tell whether an address has ever sent any...
Ethereum transaction receipt. Transaction receipt on Ethereum (eth_getTransactionReceipt): success or reverted, gas used, effective gas price, fee paid in ETH, number of event logs and any contract created. Use to confir...
Ethereum ERC-20 balance. ERC-20 token balance of a wallet on Ethereum (USDC, USDT, WETH or any token, via balanceOf): raw amount, decimals, symbol and the human-readable amount, live from the token contract. Use to check...
Ethereum ERC-20 token info. Look up the name, symbol, decimals and total supply of an ERC-20 token contract on Ethereum, live from the contract. Use to identify an unknown token address or to format raw amounts; for a ho...
Ethereum transaction. Look up an Ethereum transaction by hash: sender, recipient, value in ETH, nonce, gas limit, the 4-byte function selector and its block. Use to see what was sent or whether it exists; for success or...
Token info and total supply for any ERC20 on Ethereum, Base, Arc or BNB Chain: name, symbol, decimals and total supply (raw and in token units), read at a named block. A contract that is not an ERC20 is refused before an...
Ethereum mainnet gas tip for agents that send transactions: latest block number and age, base fee, eth_gasPrice, eth_maxPriorityFeePerGas and a suggested maxFeePerGas (2x base fee + priority), from one batched RPC call e...
Read-only Base and Ethereum chain data over x402: gas, blocks, balances, token metadata, tx status, nonces, and token safety verdicts scored 0-100. Batch up to 25 tokens. Free /scan and /t/<address> verdict pages.