Native coin plus up to 20 ERC-20 token balances for one wallet in a single batch on 16 EVM chains, at one block height.

Recent ERC-20 Transfer events for a token or wallet on 16 EVM chains, incoming or outgoing, decimal-scaled, newest first, no indexer needed.

EVM address balance on 16 chains: native coin, main stablecoins or chosen ERC-20s, nonce, and whether it is a plain account, a contract or an EIP-7702 delegate.

Bitcoin block lookup by height, hash or latest: time, size, weight, difficulty, transaction count and transaction ids, from Bitcoin Core RPC.

Bitcoin fee estimates in sat per vByte for 1 to 144 block targets, with fast, standard and economy picks, mempool size and congestion level.

Hedera account lookup: HBAR balance, token balances, staking, deleted and receiver-signature flags, EVM address and key type, from the mirror node.

Validate a crypto address offline: format and checksum for EVM EIP-55, Bitcoin, Litecoin, Tron, XRP, Solana, TON, Sui, Cosmos and Cardano, with network detection.

Cosmos Hub transaction lookup: result code and error, message types, fee, gas used, block height and time, read from a Cosmos SDK REST node.

EVM contract bytecode facts on 16 chains: code hash and size, proxy type and implementation, admin, and the list of function selectors in the dispatcher.

Call any EVM view function from its signature on 16 chains and get the decoded result, such as balanceOf(address) returns (uint256), with revert detection.

EVM block lookup by number, hash or latest on 16 chains: time, gas use, base fee, miner, transaction count and the transaction hashes in the block.

Bitcoin transaction lookup: inputs and outputs with types, fee and fee rate, confirmations, block time and RBF signalling, from Bitcoin Core RPC.

EVM token approval audit on 16 chains: active and unlimited allowances to Permit2, Uniswap, 1inch, 0x, Seaport and Aave for the main tokens of a wallet.

Aptos transaction lookup: success, VM status, gas fee in APT, entry function called, sender, ledger version, time and event types, from an Aptos fullnode.

Filecoin address lookup: FIL balance, actor type (account, miner, multisig), nonce, ID address and Ethereum-style f410 address, from a Lotus node.

Filecoin chain head: height, time, block count, base fee, network version and total raw and quality-adjusted storage power in PiB.

Filecoin message lookup: execution exit code, sender, recipient, value, method, gas limit and gas used, height and time, read from a Lotus node.

Cosmos Hub account lookup: ATOM balance, staked amount, delegation count, pending staking rewards and IBC token balances, from a Cosmos REST node.

Aptos account lookup: APT balance, sequence number, authentication key and key rotation status, read from an Aptos fullnode REST API.

Hedera token facts: name, symbol, decimals, supply, treasury, paused state and which admin, supply, freeze and wipe keys exist, from the mirror node.