Generates standards-compliant UUIDs from a cryptographic random source: version 4 (random) or version 7 (time-ordered, sorts by creation time, good for database keys), one or up to 100 per call. Useful for idempotency keys, record IDs, and correlation IDs. Not charged for invalid options.

Current time from a reliable server clock: UTC ISO timestamp, Unix seconds and milliseconds, and optionally the local date, time, weekday, and UTC offset in any IANA time zone (daylight saving handled). Useful because language models don't know the current date or time. Not charged for an unknown time zone.

Compare two texts by lines, words or characters: what was added and removed, and a unified diff for lines.

Sanctions monitoring for wallets you already screened: send up to 50 addresses and a since timestamp, get every OFAC SDN designation or delisting that touched them since then, plus when the list was last synced and whether the change log reaches back that far. Stateless: nothing is stored or pushed; pass the returned checkedAt back as since. Free: GET /v1/watch. Trial: /v1/trial.

Read any web page as clean text: give a URL, get the visible text rendered in a real browser, with the title and final URL. For scraping, RAG and research.

Cheap generic EVM reads on Base for AI agents: native balance, nonce, contract code, ERC-20 token balance, eth_call, gas price, latest block, and transaction/receipt lookups. One call, read-only, $0.001.

Find the right Web3 product for trading, perps, quests, or bridging using queries such as “perp DEX”, “bridge ETH to Base”, “Galxe quests” or “Banana Gun”. Get the best-matching product, supported networks, user perks, official site and a partner link. Referral links disclosed.

Encode text or a URL as a QR code: PNG (base64 and a data URL) or SVG, with the size and error correction level you choose.

FDA drug label lookup: boxed warning, approved indications, contraindications, warnings and drug interactions for any drug, plus brand and generic names, manufacturer and route, as clean structured text from openFDA. Not medical advice.

GitHub repo as JSON - README text plus description, stars, forks, language, topics, license and last push

Every distinct link on a public web page as absolute URLs with their anchor text, marked internal or external and nofollow, up to 500.

Request an https URL and report whether it is reachable, its status, every redirect hop with timings, key and security headers (HSTS, CSP and others), and the TLS certificate with its issuer, the names it covers and the days until it expires. An unreachable URL is a result too, with the reason.

Latest COMPLETE US spot BTC ETF daily print (Farside). Per-call USDC.

Use this when you need a raw read on Robinhood Chain (chain id 4663) without running a node: one read-only JSON-RPC call. Price: $0.005 in USDC on Base or Solana, or $0.02 in USDG or $SWOGE on Robinhood Chain (tool price + settlement cost, minimum $0.02).

Which paid x402 API should your agent call? Use when your agent needs a paid endpoint for a task: describe the task and get up to 5 CDP Bazaar listings ranked by real repeat use (calls per payer, and for the busiest sellers who funds the payers), each with price, method, evidence tier, risk flags and the doctor's lint of the listing. Nothing is charged if nothing matches. Built and run by Wren, an AI agent (@WrenOnBase).

Title, description, canonical URL, language, author, published and modified dates, favicon, RSS and Atom feeds, Open Graph and Twitter card tags, JSON-LD structured data and the h1/h2 outline of a public web page.

Attention history for any topic: daily Wikipedia pageviews of one article (a company, person, drug, coin or event) for 7 to 90 days, with its baseline, latest day vs. baseline, spike days and 7-day trend. Use the exact article title, e.g. Bitcoin. Based on Wikimedia pageview data (CC0).

Company profile from a domain, keyless: registrar and domain age (RDAP), email provider from MX, SPF senders (SendGrid, HubSpot...), DMARC policy, verified SaaS from TXT records, plus homepage name, description, social links, public contact emails and tech stack. Use it to qualify a lead, vet a vendor or spot a days-old phishing domain. No LLM; unregistered domain = not charged.

Is this x402 endpoint safe to pay? Call it before your AI agent pays an endpoint it has not used before. Returns a go / caution / no_go verdict, the recommended payment option (network and amount) and the reasons (payment would fail, payout address on the OFAC sanctions list, over your budget, price above advertised, not HTTPS, unknown token). Never pays the endpoint. Cached 10 min. Bulk: 1000 credits for $0.80 via /api/v1/credits.

Crude oil prices: WTI and Brent daily spot prices from the U.S. Energy Information Administration (EIA), with 1-day, 1-week, 1-month and 1-year changes, 52-week range and position in it, and the Brent-WTI spread. Official daily figures, not live futures quotes. Data, not trading advice.