File what you want to buy from an agent-facing API and cannot buy today. Optional kind is typically one of coin, country, vies_country, monitor_host, sms_service — free-form values possible. The $0.01 fee is there to keep intents honest, not to sell you anything: it is not a purchase of the capability and no promise that it gets built. Optionally add the price per call you would pay and your expected monthly volume. Free alternative: POST /agent/request.

Returns per-stablecoin price and deviation from peg (USDC, USDT, DAI) with an overall status and anomaly score — poll every minute to catch micro-depegs before they become crises.

Summarize text: Verb-path alias of POST /v1/cheap-errand ($0.01 USDC). Same handler + payment terms; path defaults task=summarize when body.task omitted. Cheap agent glue for buyer-supplied text. Base via x402. No API key.

Returns matching company names with IDs plus links to their profile and intelligence endpoints — use it to resolve a search into specific companies before paying for deeper data

Performs comprehensive URL health checks, measuring response time, status code, security headers, and TLS/SSL certificate validity. Route: GET /paid/health-check?url=https://example.com. Ideal for automated monitoring and endpoint auditing.

Google Places (local businesses with rating, address and phone number) for AI agents at $0.010 per call, from the same Serper.dev source as /web/search. Send a query, get back compact JSON: top places with position, title, address, coordinates, rating, rating count, category, phone and website. Tune with num (1-10 results), country and language (2-letter codes). Zero results is a valid, honest answer. Pay per call in USDC on Base, no account, no API key.

Explain what an EVM transaction would actually do: decodes the calldata (ERC-20 transfers/approvals via known ABIs, unknown selectors via the 4byte directory) and simulates the call against live chain state to report the outcome — including unlimited-approval warnings — without sending anything. Use this when an agent needs to decode and simulate a transaction — before signing it.

Top cryptocurrencies by market cap with live price, market cap, 24h volume, and 24h + 7d % change. Pass limit (1–100, default 20). Source: CoinGecko.

Nasdaq Composite spot index quote, delayed, via Yahoo Finance

Render a bar/line/area chart to SVG (v2 discovery probe)

Look up SEC EDGAR company information by ticker, CIK, or company name. Returns company profile and recent filings.

SEC filing delta since a date: new filings, form counts, updated financial facts and change signals for monitoring agents.

Full on-chain due-diligence report for any NFT collection: mint supply, unique holders, top-10 ownership concentration with a verdict, wash-trading indicators from transfer patterns, and recent activity trend. Read straight from the chain — the check an agent runs before its human buys. Use this when an agent needs to the Carfax for NFT collections — holders, concentration, wash signals.

SEC filing lookup and XBRL facts by ticker or CIK, with form filters, direct EDGAR links and machine-readable JSON.

Current Base base fee, suggested priority fees and USD cost estimates for a transfer or an ERC-20 transfer.

Parses robots.txt groups and applies deterministic longest-match allow and disallow semantics.

Compare any two NFT collections on the full due-diligence metric set: supply, holders, holder ratio, top-10 concentration, wash-trading score and activity trend — with a winner per metric. The head-to-head an agent runs before recommending one collection over another. Use this when an agent needs to two collections side-by-side, metric by metric verdicts.

Get a daily horoscope for any zodiac sign. Optionally request a specific date.

Investment committee memo from SEC filings: financial trajectory, margins, leverage, ranked risk flags, positives, open questions and sources.

Total US public debt outstanding, to the penny, latest available