230 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.
Fetch a block header by number, hash, or "latest" on Ethereum, Base, Arbitrum, Optimism, Polygon, or BNB Chain: timestamp, miner, gas used/limit, base fee, transaction count, size. Public JSON-RPC, no API keys. POST a JS...
Wandelt CSV in JSON oder JSON in CSV um, ohne KI (Convert CSV to JSON or JSON to CSV, deterministic).
🆕 A Base transaction by hash, unedited: from, to, value in wei and ETH, nonce, gas, fee caps, type, and the 4-byte method selector with the calldata size. Flags a contract creation (null to) and a still-pending transact...
Check a UUID: send a string and get whether it is a valid UUID plus its version and variant. $0.001 USDC per call on Base.
The current chain tip (latest block height) via eth_blockNumber, across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. The freshness read settlement, indexing and trading agents poll to know where the chain is. Liv...
Wallet screening bundle (balance, activity, contract vs EOA check): ETH balance + balance_usd + tx count + contract-code check (EIP-7702 delegated-EOA aware) for a Base mainnet address, in one call.
🆕 The receipt for a Base transaction: success or reverted, block, gas used, effective gas price, the fee in wei and ETH, how many logs it emitted and which contracts emitted them. A contract deployment reports the new a...
Retrieve a live EVM block header and a bounded list of real transaction hashes by height, tag, or block hash.
Determine whether a Base address is a contract or an externally-owned account.
Base Latest Block: current Base mainnet block number, timestamp, base fee and gas used. $0.001 per call.
Base mainnet token facts: name, symbol, decimals, totalSupply, contract/EIP-1967 proxy status, owner(), and mint/pause/blacklist selectors in bytecode. Facts only, no ratings.
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.
Decode EVM calldata before signing: function signature candidates (openchain DB), decoded args, and plain-English warnings for approve/setApprovalForAll/permit/unlimited amounts.
Is a Base address a smart contract or an EOA? Returns is_contract and bytecode size. Use when an agent must decide whether a recipient is a contract before sending funds or approving it.
Raw storage slot (eth_getStorageAt) of a Base contract. Use when an agent needs proxy implementation/admin slots or raw contract state.
ERC-20 allowance(owner, spender) on Base, raw + formatted, flags unlimited approvals.
Basename/ENS resolution on Base: forward name->address (give 'name') or reverse address->name (give 'address', forward-verified against spoofing).
Check a Base wallet's ERC-20 approvals: allowances for 8 major tokens (USDC, WETH, USDbC, DAI...) to common spenders (Permit2, Uniswap Universal Router, Uniswap SwapRouter02, Aerodrome Router...); flags unlimited approva...
Resolve an ENS name or Basename to an address (plus url/twitter/github text records), or reverse-resolve an address to its primary name.
Live gas snapshot for Base, Ethereum and BNB Smart Chain: gas price, base fee, block utilization, and estimated native cost of a transfer, ERC-20 transfer and swap.
ERC-20 token metadata read on-chain: name, symbol, decimals, total supply, owner (and whether renounced), EIP-1967 proxy implementation, holder count and reputation. Default chain Base; prefix another: ethereum:, arbitru...
Latest block number on Base, Ethereum, Arbitrum, Optimism, Polygon or BSC. $0.01 per call.
Raw transaction by hash: from, to, value, nonce, block, gas, type, method selector, pending flag. Default chain Base; prefix another: ethereum:, arbitrum:, optimism:, polygon:, bsc:. $0.01 per call.
Block by number (or latest): time, hash, transaction count, gas used and limit, base fee, proposer. Default chain Base; prefix another: ethereum:, arbitrum:, optimism:, polygon:, bsc:. $0.01 per call.