Estimate gas, Gnosis. Estimate the gas a transaction would use on Gnosis (eth_estimateGas) and what it would cost at the current gas price, in gas units, gwei and xDAI. Give to, plus value in xDAI and calldata for a contract call, and the sender when the call depends on it. Use before sending a transaction or to price a batch; for the gas price alone use gnosis_gas. A transaction that would revert is 422 with the reason, uncharged.

Token transfers, Celo. List a wallet's recent transfers of one ERC-20 token (default USDC) on Celo, in and out, over the last N blocks (1-2,000, default 1,000): direction, counterparty, amount and transaction, newest first, up to 50. Use to confirm a payment arrived or see what was sent; for the current balance use celo_token_balance. Malformed addresses are rejected with 400, uncharged.

Eth call, Gnosis contract call. Read-only contract call on Gnosis (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 view function that has no dedicated tool (the example reads USDC totalSupply, selector 0x18160ddd); decode the result with the function's ABI. Calldata up to 8 KB; a call that reverts is 422 with the reason, uncharged.

Celo transaction. Look up a Celo transaction by hash: sender, recipient, value in CELO, nonce, gas limit, the 4-byte function selector and its block. Use to see what was sent or whether it exists; for success or failure and fees paid use celo_receipt, for emitted events celo_logs. Input is a 0x-prefixed 64-hex hash; an unknown hash returns 404, uncharged.

Gnosis native balance. Native xDAI balance (eth_getBalance) of any 0x wallet address on Gnosis at the latest block, in wei and in xDAI. Use to check whether a wallet can pay gas or a transfer; for ERC-20 tokens use gnosis_token_balance, for all holdings at once use wallet_portfolio. A malformed address is rejected with 400, uncharged.

Eth call, HyperEVM contract call. Read-only contract call on HyperEVM (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 view function that has no dedicated tool (the example reads USDC totalSupply, selector 0x18160ddd); decode the result with the function's ABI. Calldata up to 8 KB; a call that reverts is 422 with the reason, uncharged.

HyperEVM native balance. Native HYPE balance (eth_getBalance) of any 0x wallet address on HyperEVM at the latest block, in wei and in HYPE. Use to check whether a wallet can pay gas or a transfer; for ERC-20 tokens use hyperevm_token_balance, for all holdings at once use wallet_portfolio. A malformed address is rejected with 400, uncharged.

HyperEVM transaction receipt. Transaction receipt on HyperEVM (eth_getTransactionReceipt): success or reverted, gas used, effective gas price, fee paid in HYPE, number of event logs and any contract created. Use to confirm a payment or call went through; for sender, value and calldata use hyperevm_tx. Input is a 0x-prefixed 64-hex hash; a pending or unknown hash returns 404, uncharged.

Storage slot read, Gnosis. Read one raw storage slot of a contract on Gnosis (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 (mapping and proxy slots). Use to inspect contract state that has no getter, owners or implementation pointers; for proxies use gnosis_proxy. A malformed address or slot is rejected with 400, uncharged.

Storage slot read, HyperEVM. Read one raw storage slot of a contract on HyperEVM (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 (mapping and proxy slots). Use to inspect contract state that has no getter, owners or implementation pointers; for proxies use hyperevm_proxy. A malformed address or slot is rejected with 400, uncharged.

Block number, HyperEVM. Latest block number and block details on HyperEVM, or any block by decimal number: hash, timestamp, transaction count, gas used and limit, base fee in gwei and producer. Use for timestamps and confirmation counts; for current fees use hyperevm_gas. A block that does not exist yet returns 404, uncharged.

HyperEVM contract check. Check whether a 0x address on HyperEVM 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 funds or approving a spender; for a fuller risk verdict use check_counterparty. A malformed address is rejected with 400, uncharged.

Gnosis ERC-20 balance. ERC-20 token balance of a wallet on Gnosis (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 stablecoin or token holdings before a transfer or trade; for the native coin use gnosis_balance. Both inputs are 0x addresses (40 hex characters); no contract returns 404 and a non-ERC-20 contract 422, both uncharged.

Gas history, HyperEVM gas price. Gas price history on HyperEVM (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 priority fees, with the low, average and high base fee over the window. Use to judge whether fees are rising, pick a priority fee or time a transaction; for the current price alone use hyperevm_gas.

HyperEVM gas price. Current gas price on HyperEVM (eth_gasPrice): gas price, base fee and suggested priority fee in gwei, plus what a plain HYPE transfer (21,000 gas) costs right now. Takes no input. Use before sending a transaction or to decide whether to wait; for the fee a past transaction actually paid use hyperevm_receipt.

Estimate gas, HyperEVM. Estimate the gas a transaction would use on HyperEVM (eth_estimateGas) and what it would cost at the current gas price, in gas units, gwei and HYPE. Give to, plus value in HYPE and calldata for a contract call, and the sender when the call depends on it. Use before sending a transaction or to price a batch; for the gas price alone use hyperevm_gas. A transaction that would revert is 422 with the reason, uncharged.

Gnosis ERC-20 token info. Look up the name, symbol, decimals and total supply of an ERC-20 token contract on Gnosis, live from the contract. Use to identify an unknown token address or to format raw amounts; for a holder's balance use gnosis_token_balance. Input is a ticker (USDC, WETH…) or the token's 0x contract address; an address that is not an ERC-20 contract returns 422, uncharged.

Gnosis transaction. Look up a Gnosis transaction by hash: sender, recipient, value in xDAI, nonce, gas limit, the 4-byte function selector and its block. Use to see what was sent or whether it exists; for success or failure and fees paid use gnosis_receipt, for emitted events gnosis_logs. Input is a 0x-prefixed 64-hex hash; an unknown hash returns 404, uncharged.

Token allowance, HyperEVM ERC-20. ERC-20 token allowance on HyperEVM: 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 approval before a swap or to audit risky open approvals; for the owner's balance use hyperevm_token_balance. Token is a ticker (USDC, USDT, WETH…) or a 0x contract; a missing contract is 404 and a non-ERC-20 422, both uncharged.

Token transfers, Gnosis. List a wallet's recent transfers of one ERC-20 token (default USDC) on Gnosis, in and out, over the last N blocks (1-2,000, default 1,000): direction, counterparty, amount and transaction, newest first, up to 50. Use to confirm a payment arrived or see what was sent; for the current balance use gnosis_token_balance. Malformed addresses are rejected with 400, uncharged.