BitBooth Whois: pay 0.01 USDC, get the parsed whois record for any domain — registrar, creation/updated/expiry dates, name servers, status flags, plus the raw whois text. Two-hop resolution via whois.iana.org then the authoritative registry over TCP port 43. 5s per-connection timeout cap. Rejects IPv4/IPv6 inputs and blocks SSRF at the DNS layer. Built for agents auditing domain ownership, monitoring expiry, or pre-flighting a target.

Returns tamper-resistant on-chain USD spot prices, 24h volatility, and Chainlink/TWAP oracle deviation metrics for major Base and EVM assets.

Inspects Base EVM smart contract bytecode size, EIP-1967/UUPS proxy implementation slots, EIP-7702 delegation designators, and verified function selectors.

Screens EVM and Solana wallet addresses against OFAC SDN sanctions lists, Lazarus Group attributions, and known DeFi exploit/drainer blacklists.

Contract-code check for a Base mainnet address (is_contract + code size + EIP-7702 delegated-EOA detection). Use when an agent must check whether a Base address is a contract or an EOA before interacting.

Official US Treasury reporting rates of exchange — government FX reference rates for ~170 currencies, in units of foreign currency per 1 USD, for the latest quarter. Use for accounting-grade and exotic-currency conversion the market /api/v1/forex feed lacks. Filter with `?currency=Euro`. Updated quarterly. From the US Treasury (FiscalData). From x402stock

Pay-per-call: Research brief (micro)

Detect the language of input text and translate it to any specified target language. AI-powered translation supporting numerous world languages.

Foresight API request

PoolTogether draw scan data

New token-pair digest since a timestamp with a signed pre-trade risk verdict per pair (liquidity/freshness).

Transaction receipt by hash on Base mainnet: status, gas used, full logs, L1 fee breakdown, l1_fee_usd/total_fee_usd.

Pre-trade token security GO / HOLD / BLOCK gate for an autonomous Base trading agent: pass token, side (buy|sell) and notional_usd; get a one-word decision plus reason in one fast call. Combines honeypot/sellability simulation, admin-control checks and Uniswap v3 WETH-pool liquidity vs. your trade size (price-impact guard). Use when an autonomous trading agent needs a GO/HOLD/BLOCK check right before a Base swap.

Get the current Base gas price and the ETH cost of an ETH, ERC-20 or x402 USDC transfer at that price. Current Base gas: gas price, base fee, priority fee, and the ETH cost of an ETH transfer, an ERC-20 transfer and an x402 USDC settlement at that price. Query: none.

worldchain gas snapshot: eth_gasPrice + maxPriorityFee on a chainId-verified keyless RPC.

worldchain read-only RPC: allowlisted no-param reads or bounded caller method (eth_blockNumber/eth_chainId/... ). 1MiB cap.

Signed stateless anomaly verdict over an agent transaction log: spikes, merchant concentration, overnight volume, vendor drift, burn-rate, duplicates.

The total US public debt outstanding to the penny — the headline national-debt figure — split into debt held by the public and intragovernmental holdings, with the latest value, prior business day, day-over-day change, and recent history. No ticker needed. Updates each business day. Sourced from the US Treasury (FiscalData). Pass `?limit=` for more history (default 30, max 250). From x402stock

Nearest holiday parks, DOC campsites and DOC huts to a place, with distance and open/closed status. Drive-up stays are ranked before backcountry huts (huts carry walkIn:true). Use for 'where can I stay near X'. If the name is unusual, call /resolve?place=... first (free); a failed lookup is still charged.

Find tickers by free-text `?search=` (name or symbol) across asset classes via `?market=stocks|crypto|fx|indices` (default stocks), with optional `?type=`, `?exchange=`, `?active=`, `?limit=`. Returns symbol, name, market, exchange, type, and identifiers. Use to discover crypto pairs (X:BTCUSD), FX pairs (C:EURUSD), and index symbols (I:SPX). From x402stock