Token allowance, Celo ERC-20. ERC-20 token allowance on Celo: 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 celo_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.

Eth call, Celo contract call. Read-only contract call on Celo (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 gas price. Current gas price on Celo (eth_gasPrice): gas price, base fee and suggested priority fee in gwei, plus what a plain CELO 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 celo_receipt.

Estimate gas, Celo. Estimate the gas a transaction would use on Celo (eth_estimateGas) and what it would cost at the current gas price, in gas units, gwei and CELO. Give to, plus value in CELO 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 celo_gas. A transaction that would revert is 422 with the reason, uncharged.

Block number, Celo. Latest block number and block details on Celo, 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 celo_gas. A block that does not exist yet returns 404, uncharged.

Proxy implementation, Celo. Find the implementation behind a proxy contract on Celo: reads the EIP-1967 implementation, beacon and admin slots, EIP-1822 (UUPS), the older OpenZeppelin layout and EIP-1167 minimal-proxy bytecode, and names the kind found. Use before trusting or decoding a contract whose code can be swapped by its admin; for a fuller risk verdict use contract_risk. A malformed address is 400; an address without code is 404, both uncharged.

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

Celo ERC-20 balance. ERC-20 token balance of a wallet on Celo (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 celo_balance. Both inputs are 0x addresses (40 hex characters); no contract returns 404 and a non-ERC-20 contract 422, both uncharged.

Celo account nonce. Read the transaction count (nonce) of a 0x address on Celo, both confirmed and including pending transactions. Use to build the next transaction or to tell whether an address has ever sent anything; for its balance use celo_balance. A malformed address is rejected with 400, uncharged.

Storage slot read, Celo. Read one raw storage slot of a contract on Celo (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 celo_proxy. A malformed address or slot is rejected with 400, uncharged.

Celo ERC-20 token info. Look up the name, symbol, decimals and total supply of an ERC-20 token contract on Celo, live from the contract. Use to identify an unknown token address or to format raw amounts; for a holder's balance use celo_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.

Token allowance, Gnosis ERC-20. ERC-20 token allowance on Gnosis: 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 gnosis_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.

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 account nonce. Read the transaction count (nonce) of a 0x address on Gnosis, both confirmed and including pending transactions. Use to build the next transaction or to tell whether an address has ever sent anything; for its balance use gnosis_balance. A malformed address is rejected with 400, uncharged.

Gnosis recent event logs. Recent contract event logs on Gnosis (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 hash). Returns up to 100 logs with block, transaction hash and topics. Use to watch transfers or contract events; for one transaction's outcome use gnosis_receipt.

Gnosis gas price. Current gas price on Gnosis (eth_gasPrice): gas price, base fee and suggested priority fee in gwei, plus what a plain xDAI 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 gnosis_receipt.

Gnosis contract check. Check whether a 0x address on Gnosis 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.

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.

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.

Block number, Gnosis. Latest block number and block details on Gnosis, 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 gnosis_gas. A block that does not exist yet returns 404, uncharged.