blockchain-protocol-intelligence

Checks one address on Ethereum, Base, Arbitrum, Optimism, Polygon or BNB Smart Chain against the open verification registry and against the chain itself. For a proxy the answer is deliberately split in two: whether the proxy is verified says almost nothing, whether the implementation it currently points to is verified is the real question, and both are reported separately with the implementation address read from the EIP-1967 storage slot, the EIP-1167 clone pattern or an implementation() call —

Live block summary by number, hex, or tag (latest/earliest/pending/safe/finalized; default latest): number, hash, parent, timestamp (unix + ISO), transaction count, gas used/limit, base fee and miner. Reads live on-chain data with automatic endpoint fallback.

Fetch an EVM block (latest or by number). Given a chain and an optional block number returns block number, hash, parent hash, timestamp, transaction count, gas used/limit, base fee and miner. Omit the number for the current block height. For indexers, chain-tip monitoring, finality-tracking and block-explorer agents.

Get an ERC-20's name, symbol, decimals, total supply, holder count and USD rate in one call. An ERC-20 on Base in one call: name, symbol, decimals, total supply, holder count, contract type and USD rate when Blockscout knows it. Query: ?address=0x…

Get the latest Base block with its age in seconds, base fee and gas used. The latest Base block: number, hash, timestamp, age in seconds (so you know the node is not lagging), base fee, gas used. Public RPC, no key. Query: none.

The verified ABI of a smart contract on any EVM chain from Sourcify: function signatures, event names, contract name, compiler version and proxy implementations, plus the full ABI JSON ready for a client. Query: ?address=0x8335…&chain_id=8453

DeFi protocol TVL breakdown by chain, category, description, staking/borrowed TVL (DeFiLlama). Covers 3000+ protocols.

Is the Bitcoin network healthy right now? Price, hash rate, 24h transaction count, blocks mined and average block time reduced into one object — the security-budget and congestion numbers a risk or mining judgement needs, without assembling them from raw chain stats.

Inspect live bytecode and common EIP-1967 and EIP-1167 storage patterns to identify upgradeable contract proxy evidence.

Identify an address: EOA vs contract, token standard (ERC20/721/1155), proxy, metadata.

DeFi protocol TVL ranking (7742+ protocols): top protocols by TVL with chain breakdown, 1d/7d change. Filter by chain or category (DeFiLlama).

Blockchain TVL overview — all 469+ chains ranked by total value locked with token symbol and chain ID (DeFiLlama).

Retrieve a live EVM block header and a bounded list of real transaction hashes by height, tag, or block hash.

Returns current blockchain information including chain height, difficulty, and network statistics.

Validate and sign a portable event hash chain

Validate a blockchain address. Supply `chain` to check against a specific chain, or omit it to auto-detect. Ethereum addresses report their EIP-55 checksum state; Bitcoin covers base58check (P2PKH/P2SH) and bech32/bech32m segwit (P2WPKH/P2WSH/P2TR). A well-formed but invalid address returns `valid:false` — not an error.

Read deployed bytecode for an address and return contract-versus-EOA classification, byte size, and bytecode hash.

Read a block header by number or the latest, live from Base mainnet, for a fraction of a cent. No API key, no account — a wallet is the only requirement, and you are charged only if the read succeeds. Plain unsigned data; the attested version of chain reads is /v1/oracle/onchain. Answers are read at the moment of the call and stamped with the block they came from where applicable.

Read whether an address is a contract, and its code size, live from Base mainnet, for a fraction of a cent. No API key, no account — a wallet is the only requirement, and you are charged only if the read succeeds. Plain unsigned data; the attested version of chain reads is /v1/oracle/onchain. Answers are read at the moment of the call and stamped with the block they came from where applicable.

Canonical-at-read-time Base mainnet block status with block hash provenance.

Guess which chain an address belongs to from its shape and encoding, without requiring the caller to know it up front. Returns the chain, format and address type, or nulls when nothing matches.

Detect upgradeable proxy patterns (EIP-1967, UUPS, Transparent, Beacon) for any contract and return the current implementation address. Essential before trusting or calling an unknown contract.

Retrieves a complete list of supported blockchain networks with their identifiers including network name, chain ID, and CAIP format identifier.

Is this address a contract? Bytecode size, EIP-1967 proxy implementation and EIP-7702 delegation. Default chain Base; prefix another: ethereum:, arbitrum:, optimism:, polygon:, bsc:. $0.01 per call.