x402 tools

Endpoints (13 live)

• GET /tools/sanctions — Use before sending funds to check that a recipient isn't sanctioned. Screens up to 50 crypto addresses (ETH/EVM, BTC, TRX, USDT, SOL and more) against the addresses on the US Treasury OFAC SDN list, refreshed daily, returning the sanctioned entity, programs and listing date. Exact-address match only: not a full compliance screen. (0.005 USDC on Base)
• GET /tools/statute-lookup — Use to check one US statute citation before relying on it. Returns whether the section exists, is in force or repealed, its heading, full text and official source link. 48 states, DC and the US Code. Data: Open US Law v2026.08 (CC BY 4.0). Not legal advice. (0.003 USDC on Base)
• GET /tools/liquidations — Use before opening, sizing or hedging a Hyperliquid perp to see where leveraged positions get liquidated. Liquidation levels for one coin, bucketed by price, from the open positions of the most active accounts (measured, not modelled): volume within 5%/10% of the mark, biggest clusters, largest positions, open-interest coverage. (0.02 USDC on Base)
• GET /tools/hackernews — Use to find what developers and the tech industry are discussing about a topic, or to get today's top tech stories. Full-text Hacker News search (or the front page when no query), filterable by age, points and story type, up to 50 stories with points, comment counts and links. Not charged if nothing matches. (0.002 USDC on Base)
• GET /tools/dex-price — Use to price tokens by contract address, including long-tail tokens with no CoinGecko listing. Live DEX price, 24h change, volume, liquidity and market cap for up to 30 tokens per call on ethereum, base, arbitrum, optimism, polygon, bsc, avalanche, solana. One flat price per call; not charged if no address has a price. (0.002 USDC on Base)
• GET /tools/wallet — Resolve an address or ENS name and return ETH and USDC balances and tx counts on Ethereum and Base. (0.002 USDC on Base)
• GET /tools/gas — Use before sending an EVM transaction to pick the cheapest chain and set its fees. Live gas on Ethereum, Base, Arbitrum, Optimism, Polygon and BSC: slow/standard/fast EIP-1559 fee tiers (priority fee, maxFee) from recent blocks, plus the USD cost of a transfer, ERC-20 transfer and swap per tier, cheapest chain first. (0.002 USDC on Base)
• GET /tools/domain — Use to vet a domain or URL before trusting it, or to check if a name is available. Registry RDAP data (the WHOIS successor) for up to 20 domains per call: registrar, created/expiry dates, age in days, status and transfer lock, nameservers, DNSSEC. Subdomains resolve to their registered domain. One flat price per call. (0.002 USDC on Base)
• GET /tools/metadata — Fetch a web page and return its title, description, Open Graph and Twitter card tags, icons and canonical URL. (0.002 USDC on Base)
• GET /tools/qr — Generate a QR code as PNG or SVG. Params: data, format (png|svg), size (64-2048), ecc (L|M|Q|H), margin. (0.001 USDC on Base)
• GET /tools/markdown — Use when an agent needs to read web pages: returns each page's main content as clean markdown (Readability + Turndown) with title, byline and word count. $0.002 per URL; pass up to 10 comma-separated URLs in 'urls' for one batched call. Not charged if every URL fails. (0.002 USDC on Base)
• GET /tools/token-price — Use to price a crypto portfolio or watchlist in one call. Market data for up to 50 symbols or 250 CoinGecko ids: price, 1h/24h/7d/30d change, 24h high/low, volume, market cap, rank, FDV, supply, and distance from all-time high/low; optional 7-day sparkline. One flat price per call; not charged if nothing is found. (0.002 USDC on Base)
• POST /tools/statute-verify — Use to catch hallucinated or repealed statute citations in a brief, memo or AI answer. Finds up to 25 US statute citations in text, checks each exists and is in force, and checks quoted passages against the section. Not charged if none are found. Data: Open US Law v2026.08 (CC BY 4.0). Not legal advice. (0.01 USDC on Base)