356 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.
Determine whether an address on Base is a contract or an externally owned account. POST {"address":"0x..."} and receive isContract, the bytecode size in bytes and its keccak-256 hash. Useful before sending funds to an un...
Read the native ETH balance of an address on Base. POST {"address":"0x..."} and receive the balance in wei and in ether. Live chain state read directly from a node, with no indexer lag and no API key.
Look up a transaction on Base by hash. POST {"hash":"0x..."} and receive its status, block number, from and to addresses, value, gas used and effective gas price. Returns a clear not-found rather than an empty object whe...
Read the head of the Base chain, or a specific block. POST {} for the latest block, or {"number":12345678} for one by height. Returns number, hash, unix timestamp, gas used and transaction count. Useful as an authoritati...
Read an ERC-20 token balance on Base. POST {"address":"0x...","token":"0x..."} and receive the raw balance, the token decimals and the human-readable amount. Defaults to USDC when token is omitted. Live chain state, no i...
Check an ERC-20 spending allowance on Base; flags unlimited approvals.
Runs one read-only SELECT in SQLite dialect over the served schema and returns its rows. Exactly one statement; SELECT or WITH only; capped at 2000 rows and 30 seconds. catalog returns each object's price tier, the permi...
Token approvals + revoke plan: Find risky ERC-20 approvals for a wallet (default: common tokens × 20 well-known routers/spenders, or your own lists) and get UNSIGNED approve(spender,0) revoke transactions. Read-only.
One-call multi-chain wallet & counterparty forensics across Base, Ethereum, Arbitrum, Polygon, and Solana: native + USDC balances, transaction nonce activity, contract vs EOA detection, and burner/Sybil risk scoring.
Two independent RPCs must agree on block, status and transfers; give an EVM hash or a Solana signature, optional recipient/amount/token checks.
Executable NGN rate per exchange at your trade size: effective rate, slippage, spread vs the official rate
Live Base wallet snapshot: USDC balance, block height, gas price.
Base network stats: block height, gas price, USDC total supply.
On-chain risk screen for a wallet or contract: account type, activity, balance, risk band.
ERC-20 metadata read live from the contract: symbol, decimals, total supply, holders' token balance.
Gas cost oracle: current gas price and the live USD cost of a transfer, a swap, and an ERC-20 approval on Base.
Live Base block activity: block number, transaction count, gas used, and base fee.
USDC balance for many addresses in one call, with the running total. Addresses comma-separated.
Full wallet profile in one call: account type, transaction count, USDC balance, block, gas price.
Cross-pool WETH/USDC arbitrage scan on Base: live prices, gross spread, fees, gas, and net spread after costs.
Solana mainnet health: current slot, epoch, and lifetime transaction count.
Paid AI bot policy audit via x402
Paid DNSSEC chain-of-trust audit via x402
Paid redirect-chain map (cycle 95) — follows 3xx chain up to 15 hops without auto-follow (custom HTTPRedirectHandler); per-hop status+location+scheme_change+latency_ms+content_length; detects redirect loops, cross-domain...