blockchain-protocol-intelligence

Real-time blockchain security analysis across 30+ EVM chains with sanctions screening and risk detection.

Contract-code check for a Base mainnet address (is_contract + code size + EIP-7702 delegated-EOA detection).

Contract-code check for a Base mainnet address (is_contract + code size + EIP-7702 delegated-EOA detection).

Check whether a smart contract's source code is verified on the block explorer, with contract name, compiler and proxy status across Ethereum/Base/Arbitrum/Optimism/Polygon/BSC - a pre-interaction safety check agents need that LLMs cannot perform live. contract verified, source code verified, contract audit, unverified contract, contract safety, is contract safe

Block info on five EVM chains, latest by default or by number: timestamp, transaction count, gas used, base fee and sample transaction hashes. latest block, block number lookup, block timestamp, chain head, block explorer data

Base mainnet transaction status by hash: success/reverted, block number, confirmation count, gas used and effective gas price, from redundant public RPCs

OFAC / FATF / JFSA sanctions screening for any blockchain address. Returns hit list with sanction list source, designation date, and program code.

Fetch a block header by number, hash, or "latest" on Ethereum, Base, Arbitrum, Optimism, Polygon, or BNB Chain: timestamp, miner, gas used/limit, base fee, transaction count, size. Public JSON-RPC, no API keys. POST a JSON body like: {"chain":"base","block":"latest"}

Returns block header data (number, hash, timestamp, gas used/limit, base fee, tx count, validator address) for any block on Base, Ethereum, or Arbitrum. Accepts block tag (latest/safe/finalized) or number. Free-RPC alternative to skills.onesource.io at 33% lower price — $0.002 vs $0.003.

Given a transaction hash and chain, returns a decoded breakdown: sender, recipient, ETH value transferred, gas used, transaction fee, decoded method name (transfer/approve/swap/deposit/etc.), ERC-20 token transfer details if applicable, block number, block timestamp, and a one-sentence agent-readable summary. Supports Ethereum (default), Base, Polygon, and Arbitrum mainnet. Uses free public JSON-RPC nodes — no API key required, results in ~1-2s.

Returns an Ethereum block header + current stablecoin depeg status in one call. Collapses the eth-block → stablecoin-watch 2-hop chain. Block fields: number, hash, miner, timestamp, gas_used, tx_count. Stablecoin fields: symbol, price, peg_deviation, depeg_status, composite alert level. Supports Ethereum, Base, Polygon, Arbitrum. Free upstreams (DRPC + DeFiLlama), no API key required.

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

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

CRYPTO: the 15 most-recent Bitcoin blocks — height, time, tx count, size, pool, reward, median fee (mempool.space). Returns JSON.

CRYPTO: fundamental profile — type, tags, proof mechanism, whitepaper, dev status, links (CoinPaprika). ?id=btc-bitcoin. Returns JSON.

CRYPTO: Bitcoin blockchain vitals — 24h tx, blocks, block interval, on-chain USD volume, difficulty, supply (blockchain.info). Returns JSON.

CRYPTO: Bitcoin Lightning Network state — node/channel counts, capacity, Tor vs clearnet, fee rates (mempool.space). Returns JSON.

Base species and evolutions in a Pokemon evolution chain (param id). Query: ?id= Returns JSON.

BTC链上网络健康 — BTC 链上网络健康度（mempool.space 实时免key）：全网算力、挖矿难度、内存池积压、推荐手续费、未确认交易数，合成矿工压力/网络活跃指数。注：MVRV/SOPR/NUPL 估值类需 Glassnode 付费，本产品仅网络健康层。

Map common EVM chain_id integers to short network names. Call when labeling multi-chain configs without embedding a full chainlist fetch. Returns short name and known flag for the chain_id as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.

Queries every public RPC endpoint this hub knows for a chain in parallel — at least three, usually five — and reports what each one says instead of trusting one. Disagreement is the valuable finding: a single endpoint that lags or serves a different fork is exactly the failure mode this endpoint is built to expose, so agreement is reported per endpoint and the tolerance in blocks is derived from that chain's block time and stated. Beyond height it compares the actual block hash six blocks deep a

USD Coin

Resolve verified contract ABI from Sourcify and block explorers

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 —