🆕 What sits at a Base address: contract or plain wallet, and if a contract, whether it declares ERC-721 or ERC-1155 via ERC-165 or carries the ERC-20 shape, plus name, symbol, decimals and code size. Interface support is read from the contract's own declaration first and only inferred when there is none — the ordering matters, because NFTs answer totalSupply() too.

🆕 totalSupply for any Base token, returned raw and scaled by its decimals, alongside the name and symbol. When a contract doesn't declare decimals the answer assumes 18 and marks that it assumed — a silent guess here quietly moves every downstream number by orders of magnitude. Non-token addresses answer found:false.

🆕 An ERC-20 balance on Base, in raw units and in decimals, with the token's symbol and decimals resolved in the same call. Zero is flagged explicitly, since it is the commonest answer and the one most easily confused with a failed read. An address that doesn't implement balanceOf answers found:false and says so.

Complete ERC-20 portfolio for a Base address — every non-zero token with balance, metadata and live USD value, plus a total. Token discovery via CDP Data API (Coinbase) with Alchemy fallback; USD from DexScreener.

The latest transactions for a Base address — hash, time, from/to, ETH value, success — via Covalent. For agents tracking what a wallet is doing.

Lists a wallet's active token approvals — which contracts can spend its tokens, the allowance, USD value at risk and a risk factor (revoke.cash-style). Essential wallet-security check for agents and users.

AI provider health reading for one provider (GET /v1/decide/provider-health?provider=anthropic; a model id also works): the vendor's own status-page indicator and active incidents, the share of disturbed checks in the last 24h of our record (checked every 10 min), and a reading field (go, caution, …

🆕 The next nonce for any Base address, plus its ETH balance and whether it is a contract. The count means different things either side of that line — transactions sent for a wallet, contracts deployed for a contract — so both are reported under their own name instead of one ambiguous number. What you need before building a transaction, or to tell a fresh address from a used one.

Reads the deployment records of Clanker's own factories on Base (v4 tokenDeploymentInfo, v3.1/v3/v2 deploymentInfoForToken; v0/v1 via the factory's TokenCreated in the deploy receipt) to verify a launch: version, factory, requester, pool, and whether the LP position NFTs are held by Clanker's locker. Cross-checked with clanker.world. Returns clanker_verified, not_clanker or unknown; RPC failure is not charged.

Returns the latest tokens profiled on Base from the DexScreener feed — address, description, and links. Great for discovery bots hunting new launches early.

🆕 The receipt for a Base transaction: success or reverted, block, gas used, effective gas price, the fee in wei and ETH, how many logs it emitted and which contracts emitted them. A contract deployment reports the new address. No receipt yet means pending, dropped, or never here — and it says which is possible instead of failing.

Recent transfers of a specific token for a wallet — direction (in/out), amount, USD value, counterparty, tx hash and time, via Covalent. For agents tracking token flows and cost basis.

Central bank interest rate decisions, one card per bank: FED (FOMC), Bank of England (BOE), ECB, BOJ, RBA, BOC, SNB. Each card: hike/hold/cut, policy rate, previous rate, change in bps, vote and dissent where published, next decision date, summary and official source_url. Next decision date and content hash in /catalog, free. Free sample: /sample/policy/FED. Other ids 404 (no charge).

Lists the NFT collections a Base wallet holds — name, count and floor value — spam-filtered, via Covalent. For agents profiling a wallet's NFT exposure.

🆕 Live — B20 is Base's native precompile token standard, and unlike ERC-20 a B20 issuer can freeze holders (Policy Registry) and even SEIZE your balance (burnBlocked) at the protocol level. This reads those powers — seizable, freezable, paused, rebase, uncapped-mint — into one hold/caution/avoid verdict, and separates a real tokenized stock from one merely wearing an equity ticker by reading the transfer-policy admin on chain, not a list: all 13 Coinbase equities, and the next on day one.

Goes past 'top-10 = X%' to classify the holder base: how much the creator & owner still hold, which top holders are infrastructure (LP/CEX/bridge — benign) vs unlabelled wallets (the concentration that can actually dump the price), and the largest non-infra wallet. Separating benign from dangerous concentration is the analysis others skip.

Call before buying, swapping into or accepting any Base ERC-20, to learn if you can sell it back. $0.02, ~1-3 s, measured on-chain: honeypot test (simulated buy then sell via the deepest pool: sell ok? round-trip loss vs fees), per-pool transfer tax from real recent swap receipts, USD liquidity per pool (Uniswap v2/v3, Aerodrome, Slipstream), sell quotes, and an ok/caution/avoid verdict citing each fact. Errors: 400/503 JSON {error}, not charged.

Working days / next working day in a date range: weekends + gazetted public holidays

Total US public debt outstanding to the penny (held by the public and intragovernmental), with its change over 30 days and one year and the average daily increase. Official US Treasury Fiscal Data.

Moon phase on a date: name, illuminated percentage, lunar age and the next new and full moon dates. Local astronomical calculation.