Pick one or more items at random (without repeats) from a comma- or line-separated list. Use for raffles, choosing who goes first, or breaking ties fairly.

Returns the message you send, with its length and the server time. Use to test an x402 client, payment flow or agent tool wiring end to end.

Decode a BOLT11 Lightning Network invoice without paying it: network, amount in sats and BTC, description, payment hash, creation time, expiry time and whether it has already expired. Use to check what an invoice asks for before an agent pays it.

Ask a yes-or-no question and get one of the 20 classic Magic 8-Ball answers, chosen at random. For fun only. Use for games and chat bots.

A fair random yes or no, with a cryptographic random source. For quick decisions when the options are equally good. Use to break ties.

x402 audit of a seller. Audit an x402 seller before an agent buys from it: decodes the endpoint's 402 terms without paying, OFAC-screens each payTo address, reads its account type and nonce on the payment network, checks the seller domain's age and trust flags, and flags non-USDC assets and high prices. One block, review or pass verdict with reasons. Never signs. Screening aid, not legal advice. Use before the first payment to an unfamiliar x402 seller.

Scan text an agent is about to read (web page, email, tool result; up to 8,000 characters) for prompt-injection attempts: instruction overrides, fake system messages, asks to hide things from the user, exfiltration links, attempts to extract private data or move money, invisible Unicode. Returns a risk level, score and findings with excerpts. Heuristic, not a guarantee. Use before acting on untrusted content.

Fast check of a payee before an agent pays it: OFAC SDN match on the address, account type (wallet, delegated wallet or contract) and nonce on Base, Ethereum, Arbitrum, Optimism or Polygon, and optionally the payee domain's age and trust flags. One block, review or pass verdict with reasons. Screening aid, not legal advice. Use before an x402 or USDC payment to an unfamiliar address; holdings and wallet heuristics: check_counterparty.

A structured Markdown outline (headings and bullet points) of a text you send, or a suggested outline for a topic. Use to plan articles, reports, talks and documentation.

Domain intelligence in one call: DNS records (A, AAAA, CNAME, MX, NS, TXT, CAA), DNSSEC status, registrar, registration and expiry dates with domain age in days (RDAP/WHOIS), and email authentication (SPF and DMARC records and policies, whether the domain accepts mail). Use for lead qualification, phishing and trust checks, and deliverability audits. For a trust verdict with named flags use domain_report.

Split a list of names into a given number of random, evenly sized teams. Use for games, workshops and classrooms.

LLM inference, large model. Send a prompt, get an answer from a larger open model: Llama 3.3 70B Instruct (default) or OpenAI gpt-oss-120b, with an optional system prompt, up to 1,024 output tokens and adjustable temperature. Same call as /ai/chat with a stronger model. Use when the 8B model is not enough: reasoning, drafting and Q&A.

Fear and greed index, crypto. The Crypto Fear & Greed Index (0 = extreme fear, 100 = extreme greed) from alternative.me: today's value and label, the change against 1, 7 and 30 days ago, the low, high and average over the window, and the daily history (up to 90 days, default 30). Updated once a day. Use as a market-sentiment input for a trading agent, a dashboard or a daily brief; for live prices use price_token.

Web page to Markdown, rendered. Same output as /extract, but the page is first rendered in a real browser, so single-page apps and pages that build their content with JavaScript come back with their text instead of an empty shell. Waits for the network to settle (up to 15 seconds). Public pages only; no login. Use when /extract returns EXTRACTION_EMPTY or too little text for a page you can read in a browser.

Gas tracker, multichain gas. One call for current gas prices on Base, Ethereum, Arbitrum, Optimism and Polygon: gas price, base fee and priority fee in gwei and what a plain transfer costs in the native coin and, for the ETH chains, in US dollars (Uniswap ETH price), sorted cheapest first, plus Bitcoin fee rates in sat/vB. Cheaper than the tools bought one by one. Use to pick the cheapest chain, time a transaction or show fees in a wallet.

Uptime check, website status. Check whether a website is up right now: one live request (following redirects) with the HTTP status, up or down, response time in ms, the final URL, content type, server header and page size, and optionally whether the page contains a given text. Timeouts and connection failures come back as down with the reason, not as an error. Use for uptime monitoring, health checks before calling an API, or to confirm a deploy.

SEO audit, on-page. On-page SEO audit of one URL: title and meta description with their lengths, canonical, meta robots, H1s and H2 count, images without alt text, lang and viewport, Open Graph and Twitter card tags, JSON-LD blocks, internal and external link counts and word count, plus a list of issues and a 0-100 score. Reads the server's HTML (no JavaScript), up to 1 MB. Use to check a page before publishing or to compare competitors.

Markdown table from CSV. Convert CSV (comma, semicolon, tab or pipe, detected automatically; quoted fields supported) into a GitHub-flavoured Markdown table, with number columns right-aligned, pipes escaped and line breaks kept as <br>. Up to 100 KB. Use to show spreadsheet data in a README, chat reply, issue or report; for JSON use csv_to_json.

Base gas-cost estimates. Estimates Base gas costs from current fees and priority-fee presets. Fixed gas units (100k simple, 250k complex, 180k liquidity) are typical assumptions, not transaction-specific estimates or quotes. Valid values: standard, high-mev (3x priority fee), low-gas (half); invalid values return HTTP 400 without charge. No transaction simulation, mempool observation, or MEV/sandwich-risk measurement. Use to budget gas for a Base transaction.

Location data, place brief. One call for a place by name: its coordinates, country, region, population and elevation (Wikidata), the current weather and a short hourly forecast (MET Norway, CC BY 4.0), today's sunrise, sunset and day length, and facts about its country (capital, region, income level, population). Cheaper than the tools bought one by one. Use for travel planning, event and delivery context, or enriching a city name in a record.