403 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.
zkSync Era transaction. Look up a zkSync Era 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...
ABI and readable function/event signatures of a verified smart contract from Sourcify, with contract name, compiler, licence, proxy implementation and deployer. Use before calling or decoding a contract.
Compare transaction fees across chains. Cost in USD of the same transaction (given gas units) on Ethereum, Base, Arbitrum, OP Mainnet, Polygon and BNB Chain right now, sorted cheapest first, with slow/standard/fast tiers...
Every transaction receipt in one block, in one call — Genesis402 / UnyKorn Operator Network
Event logs filtered by contract, topic and block range — Genesis402 / UnyKorn Operator Network
Merkle-Patricia state proof for an account and optional storage slot — Genesis402 / UnyKorn Operator Network
Everything cheap that is knowable about an address, in one call — Genesis402 / UnyKorn Operator Network
Derive an Ethereum address from a public key — Genesis402 / UnyKorn Operator Network
Current block height on any of ten EVM chains — Genesis402 / UnyKorn Operator Network
EIP-191 digest of a message (what personal_sign actually signs) — Genesis402 / UnyKorn Operator Network
EIP-155 chain id, confirmed from the node itself — Genesis402 / UnyKorn Operator Network
Event topic0 from a Solidity event signature — Genesis402 / UnyKorn Operator Network
Suggested EIP-1559 priority fee (miner tip) — Genesis402 / UnyKorn Operator Network
Is this address a contract or an externally-owned account — Genesis402 / UnyKorn Operator Network
EIP-712 typed-data digest — Genesis402 / UnyKorn Operator Network
The Nth transaction in a block — Genesis402 / UnyKorn Operator Network
Block header by block hash — Genesis402 / UnyKorn Operator Network
An EVM chain's pending block (Ethereum, Base, Arbitrum, Optimism, Polygon): transaction count, priority-fee and gas-price percentiles, most-called contracts and largest native transfers. Use to price gas.
Breached password check: is this password in known data breaches, and how often? Send only the SHA-1 hash (never the password); just the first 5 characters reach Have I Been Pwned (k-anonymity). Up to 50 hashes per call.
Balances of a wallet address or ENS name on Ethereum, Base, Arbitrum, Optimism and Polygon in one call: native ETH/POL, USDC, USDT, DAI and any ERC-20 contracts you add, each with USD value and a total. Use to check whet...
What is at an EVM address: wallet (with EIP-7702 delegate) or contract, bytecode size, token standard (ERC-20/721/1155), name, symbol, decimals, supply, owner() and proxy implementation. Use before interacting with an un...
Decode EVM transaction input data: looks up the 4-byte function selector and decodes every argument (addresses, amounts, arrays). Use to see what a transaction or signing request will really do.
Recent ERC-20 Transfer events for a token, a wallet (in and out) or both over the last N blocks (max 5,000), with sender, receiver and amount in token units. Use to confirm incoming payments or watch whale moves.
Event logs a contract emitted (eth_getLogs), filtered by event signature such as Transfer(address,address,uint256) or a topic hash, over a block range (max 5,000 blocks, default last 100). Use to monitor swaps, mints or...