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

Scroll transaction. Look up a Scroll 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 failure and fees paid use scroll_receipt, for emitted events scroll_logs. Input is a 0x-prefixed 64-hex hash; an unknown hash returns 404, uncharged.

Token transfers, Scroll. List a wallet's recent transfers of one ERC-20 token (default USDC) on Scroll, 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 scroll_token_balance. Malformed addresses are rejected with 400, uncharged.

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

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

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

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

Proxy implementation, Scroll. Find the implementation behind a proxy contract on Scroll: 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.

Scroll account nonce. Read the transaction count (nonce) of a 0x address on Scroll, 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 scroll_balance. A malformed address is rejected with 400, uncharged.

Gas history, Sonic gas price. Gas price history on Sonic (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 sonic_gas.

Sonic gas price. Current gas price on Sonic (eth_gasPrice): gas price, base fee and suggested priority fee in gwei, plus what a plain S 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 sonic_receipt.

Sei account nonce. Read the transaction count (nonce) of a 0x address on Sei, 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 sei_balance. A malformed address is rejected with 400, uncharged.

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

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

Sonic recent event logs. Recent contract event logs on Sonic (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 sonic_receipt.

Eth call, Sonic contract call. Read-only contract call on Sonic (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.

Sonic account nonce. Read the transaction count (nonce) of a 0x address on Sonic, 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 sonic_balance. A malformed address is rejected with 400, uncharged.

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

Proxy implementation, Sei. Find the implementation behind a proxy contract on Sei: 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.

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