Algorand transaction lookup: type, sender, receiver, amount, asset id, fee, confirmed round and time, with note text, read from an Algorand indexer.

Algorand account lookup: ALGO balance, minimum balance, spendable amount, rekey status, asset opt-ins, created assets and apps, from an Algorand node.

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

Uniswap V3 swap quote for any token pair on Ethereum, Base, Arbitrum, Optimism or Polygon: best fee tier or WETH hop, output amount, price impact and gas.

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

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

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.

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

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.

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

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.

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

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.

Solana account lookup: SOL balance, account type (wallet, mint, token account, program) and every non-zero SPL and Token-2022 balance, from Solana RPC.

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

Kaspa address lookup: KAS balance in sompi and coins, transaction count, address type and whether the address has ever been used, from a Kaspa indexer.

NFT token lookup on 16 EVM chains: ERC-721 or ERC-1155, current owner, token URI, inline metadata when on-chain, collection name and ERC-2981 royalty.

EVM account nonce on 16 chains: latest versus pending, transactions in flight, next nonce to use, and how to replace a stuck transaction.