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Token allowance, Sonic ERC-20. ERC-20 token allowance on Sonic: 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 sonic_token_balance. Token is a ticker (USDC, USDT, WETH…) or a 0x contract; a missing contract is 404 and a

Sonic native balance. Native S balance (eth_getBalance) of any 0x wallet address on Sonic at the latest block, in wei and in S. Use to check whether a wallet can pay gas or a transfer; for ERC-20 tokens use sonic_token_balance, for all holdings at once use wallet_portfolio. 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.

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 42

Estimate gas, Sonic. Estimate the gas a transaction would use on Sonic (eth_estimateGas) and what it would cost at the current gas price, in gas units, gwei and S. Give to, plus value in S 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 sonic_gas. A transaction that would revert is 422 w

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.

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_ga

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.

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.

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.

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

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

Storage slot read, Sonic. Read one raw storage slot of a contract on Sonic (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 sonic_proxy. A malformed address or slot is rejected with 400, u

Sonic ERC-20 balance. ERC-20 token balance of a wallet on Sonic (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 sonic_balance. Both inputs are 0x addresses (40 hex characters); no contract returns 404 and a non-ERC-2

Sonic ERC-20 token info. Look up the name, symbol, decimals and total supply of an ERC-20 token contract on Sonic, live from the contract. Use to identify an unknown token address or to format raw amounts; for a holder's balance use sonic_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 transfers, Sonic. List a wallet's recent transfers of one ERC-20 token (default USDC) on Sonic, 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 sonic_token_balance. Malformed addresses are rejected with 400, uncharged.

Sonic transaction. Look up a Sonic transaction by hash: sender, recipient, value in S, 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 sonic_receipt, for emitted events sonic_logs. Input is a 0x-prefixed 64-hex hash; an unknown hash returns 404, uncharged.

Token allowance, Unichain ERC-20. ERC-20 token allowance on Unichain: 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 unichain_token_balance. Token is a ticker (USDC, USDT, WETH…) or a 0x contract; a missing contract is

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

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

Estimate gas, Unichain. Estimate the gas a transaction would use on Unichain (eth_estimateGas) and what it would cost at the current gas price, in gas units, gwei and ETH. Give to, plus value in ETH 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 unichain_gas. A transaction that would re

Unichain gas price. Current gas price on Unichain (eth_gasPrice): gas price, base fee and suggested priority fee in gwei, plus what a plain ETH 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 unichain_receipt.

Gas history, Unichain gas price. Gas price history on Unichain (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 un

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

Unichain recent event logs. Recent contract event logs on Unichain (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 unichain_receipt.

NFT balance, Unichain. How many NFTs of one ERC-721 collection a wallet holds on Unichain (balanceOf), with the collection's name and symbol. Use to check a holder before a token-gated action or to see whether a wallet still holds a collection; for who holds one token id use unichain_nft_owner. Both inputs are 0x addresses; a missing contract is 404, a contract that is not ERC-721 422, both unchar

NFT metadata, Unichain. NFT metadata on Unichain: the token URI of one ERC-721 token id (tokenURI) and the JSON it points to (name, description, image, attributes), read from data: URIs, https or ipfs:// (through ipfs.io). Strings over 1,000 characters, such as on-chain SVG images, are shortened. Use to show or check what an NFT is; for its owner use unichain_nft_owner. A token that does not exist

NFT owner, Unichain. Owner of an NFT on Unichain: the wallet that holds one ERC-721 token id right now (ownerOf), plus the collection's name and symbol. Use to verify who holds an NFT before a trade, a mint gate or an airdrop; for how many a wallet holds use unichain_nft_balance, for the token's metadata unichain_nft_metadata. A missing contract is 404, a token that does not exist 422, both unchar

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

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

Unichain transaction receipt. Transaction receipt on Unichain (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 unichain_tx. Input is a 0x-prefixed 64-hex hash; a pending or unknown hash returns 404, uncharged.

Storage slot read, Unichain. Read one raw storage slot of a contract on Unichain (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 unichain_proxy. A malformed address or slot is rejected wi

Unichain ERC-20 balance. ERC-20 token balance of a wallet on Unichain (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 unichain_balance. Both inputs are 0x addresses (40 hex characters); no contract returns 404 and a

Unichain ERC-20 token info. Look up the name, symbol, decimals and total supply of an ERC-20 token contract on Unichain, live from the contract. Use to identify an unknown token address or to format raw amounts; for a holder's balance use unichain_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 transfers, Unichain. List a wallet's recent transfers of one ERC-20 token (default USDC) on Unichain, 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 unichain_token_balance. Malformed addresses are rejected with 400, uncharge

Unichain transaction. Look up an Unichain 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 unichain_receipt, for emitted events unichain_logs. Input is a 0x-prefixed 64-hex hash; an unknown hash returns 404, uncharged.

Token allowance, zkSync ERC-20. ERC-20 token allowance on zkSync Era: 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 zksync_token_balance. Token is a ticker (USDC, USDT, WETH…) or a 0x contract; a missing contract is 40

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

Block number, zkSync Era. Latest block number and block details on zkSync Era, 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 zksync_gas. A block that does not exist yet returns 404, uncharged.

Eth call, zkSync contract call. Read-only contract call on zkSync Era (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

zkSync Era gas price. Current gas price on zkSync Era (eth_gasPrice): gas price, base fee and suggested priority fee in gwei, plus what a plain ETH 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 zksync_receipt.

Gas history, zkSync gas price. Gas price history on zkSync Era (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 zk

zkSync Era contract check. Check whether a 0x address on zkSync Era 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.

zkSync Era recent event logs. Recent contract event logs on zkSync Era (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 zksync_receipt.

NFT balance, zkSync. How many NFTs of one ERC-721 collection a wallet holds on zkSync Era (balanceOf), with the collection's name and symbol. Use to check a holder before a token-gated action or to see whether a wallet still holds a collection; for who holds one token id use zksync_nft_owner. Both inputs are 0x addresses; a missing contract is 404, a contract that is not ERC-721 422, both uncharge

NFT metadata, zkSync. NFT metadata on zkSync Era: the token URI of one ERC-721 token id (tokenURI) and the JSON it points to (name, description, image, attributes), read from data: URIs, https or ipfs:// (through ipfs.io). Strings over 1,000 characters, such as on-chain SVG images, are shortened. Use to show or check what an NFT is; for its owner use zksync_nft_owner. A token that does not exist i

NFT owner, zkSync. Owner of an NFT on zkSync Era: the wallet that holds one ERC-721 token id right now (ownerOf), plus the collection's name and symbol. Use to verify who holds an NFT before a trade, a mint gate or an airdrop; for how many a wallet holds use zksync_nft_balance, for the token's metadata zksync_nft_metadata. A missing contract is 404, a token that does not exist 422, both uncharged.

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

Proxy implementation, zkSync. Find the implementation behind a proxy contract on zkSync Era: 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 malforme

zkSync Era transaction receipt. Transaction receipt on zkSync Era (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 zksync_tx. Input is a 0x-prefixed 64-hex hash; a pending or unknown hash returns 404, uncharged.