blockchain-protocol-intelligence

SHA-256 of any string or hex payload, returned as hex and as base64. The hash everything outside Ethereum uses: file digests, API signatures, content addressing.

Barker's cross-chain route availability for a stablecoin from a given chain (bridge/venue coverage). Use for 'bridge USDC from arbitrum', '跨链路径'.

Live health of every supported chain in one call: chain id, block height and how stale the head is. Use it to pick a chain that is actually responding. Via eth_getBlockByNumber.

Returns information about decentralized applications and their on-chain activity.

DeFi protocol TVL, chains, and 1d/7d change. ?protocol=aave

Current latest block heights for Base, Polygon, Arbitrum and Nano networks — check chain liveness and sync status. No params.

DeFi protocol TVL, chains, and 1d/7d change. ?protocol=aave

Access to api/v2/transactions. List blockchain transactions with filtering options for status, type, and method

Chain id, client version and current block height for Base, Ethereum, Arbitrum, Optimism or Polygon, in one call with no API key and no node to run. The cheapest liveness and identity probe for a chain before you build on it.

Is this Base contract safe to interact with? Detect whether an address has no code, is an upgradeable proxy, or is currently paused, and get a bounded allow, review or block trust verdict with evidence and block freshness before you call it. Positive-sum by design: $0.03 when nobody has checked this contract yet, $0.02 on a shared bytecode fingerprint, $0.01 once another agent has computed the full answer — and the wallet that computed it first earns a share of every reuse.

Header + summary for a base block by number (or "latest"): hash, timestamp, tx count, gas used and base fee.

Header + summary for a base block by number (or "latest"): hash, timestamp, tx count, gas used and base fee.

Executes queries against blockchain data or smart contract information.

Latest block heights for Base, Polygon, Arbitrum, Nano

TraceFast live Ethereum data: the current runtime bytecode of a contract as hex, with its code hash and a structural fingerprint that is equal across contracts sharing the same logic. Up to 24 576 bytes of code. An address with no indexed code answers 404. Path address: The contract address, `0x`-prefixed, 40 hex characters, any case. Docs: https://docs.tracefast.xyz/api/contract-bytecode.md

Returns the current chain tip via eth_blockNumber. 2s cache. Default network is base.

Returns the ABI of a verified Ethereum smart contract as JSON, for use in wallet approval auditing. Takes a contract address (0x + 40 hex). Query: address (contract, 0x + 40 hex).

EVM Block (bsc). BNB Chain (BSC) block by number or latest: hash, parent hash, timestamp, transaction count and hashes, gas used and limit, base fee and validator (miner) address. Use it for block explorers, confirmations and timing checks.

EVM Block (ethereum). Ethereum block by number or latest: hash, time, tx count and first 100 tx hashes, gas used/limit, base fee, miner.

EVM Block (polygon). Polygon block by number or latest: hash, time, tx count and first 100 tx hashes, gas used/limit, base fee, miner.

EVM Block (arbitrum). Arbitrum block by number or latest: hash, time, tx count and first 100 tx hashes, gas used/limit, base fee, miner.

EVM Block (base). Base block by number or latest: hash, time, tx count and first 100 tx hashes, gas used/limit, base fee, miner.

EVM Network Status (polygon). Polygon network status: chain ID, block height, block age, gas price and base fee.

EVM Network Status (base). Base (Coinbase L2) network status in one call: chain ID, latest block height and how many seconds old it is, current gas price and EIP-1559 base fee in gwei. Use it to check whether Base is producing blocks and what a transaction will cost right now.