Explains a cron expression in plain English and lists its next runs in UTC and in a time zone. Five fields (minute hour day month weekday), or six with seconds first. Names (MON, JAN) and steps are supported. Computed in the Worker; no network call.

arXiv papers matching search terms, optionally in one category (cs.AI, math.CO), newest first, max 25: id, title, authors, dates, a 500-character summary, categories and the PDF link. Attribution: Thank you to arXiv for use of its open access interoperability.

An EVM block by number, or the latest one: hash, time, transaction count, gas used and limit, and base fee in gwei. Read over public RPC.

Recent earthquakes from USGS, newest first: magnitude, place, time, depth, coordinates, tsunami flag and alert level. Filter by minimum magnitude, days back (max 30) and a radius around a point. Public domain data.

ENS on Ethereum mainnet. A name (vitalik.eth) resolves to its address, and an address resolves to its primary name, accepted only when that name resolves back to the same address. Returns the avatar and the url, com.twitter, com.github, description and email text records when set. A name that is not registered returns 200 with address null.

A DOI's bibliographic record from Crossref (title, authors, journal, publisher, date, type, citation count, license), or the best matches for a citation-style search (max 10). An unknown DOI answers 404, not charged.

Current disaster alerts from GDACS (UN OCHA and EC JRC): type (earthquake, tropical cyclone, flood, volcano, drought, wildfire), name, country, alert level, start date, severity and link. Filter by type and alert level. Attribution: GDACS.

Who is behind a token: our safety verdict (grade, honeypot), DexScreener market (liquidity, volume, age, pair), declared X + website with contract/X linking checks, the creator wallet (Clanker admin or on-chain deployer) profiled as /identity/wallet, stable red-flag signals (impersonation, wash trading, dead token, serial rugger, rug ring) and a credibility verdict. Not charged when nothing could be read.

Translates up to 1500 characters with Amazon Translate between any of its 75 languages, detecting the source language when not given. Optional formal or informal tone for the languages that support it.

Turns text into speech with Amazon Polly and returns a signed URL of the audio, valid for an hour. Up to 3000 characters with standard voices or 1000 with neural ones. Voices include Joanna, Matthew (English), Mizuki, Takumi (Japanese), Lucia (Spanish), Lea (French), Vicki (German) and about 60 more.

Security headers of a URL's final response: Strict-Transport-Security, Content-Security-Policy, X-Frame-Options (or CSP frame-ancestors), X-Content-Type-Options, Referrer-Policy, Permissions-Policy, Cross-Origin-Opener-Policy and Cross-Origin-Resource-Policy, each with present, value, ok and advice. Also cookies missing Secure, HttpOnly or SameSite (names only), version leaks in Server or X-Powered-By, and a grade from A to F.

The grounded council: we buy the facts first, then deliberate on them. Your question is scanned for a contract address, URL or $TICKER; we spend on the matching evidence (honeypot simulation, sanctions screen, page content, SEC profile), hand it to one analyst that judges on what was found, not on recollection. The response lists every source and what we spent for you.

What a seller's payTo address earned from x402 payments on Base in the last days, read from the chain: total, distinct and repeat payers, per day, per price, top payers and recent payments, with plain USDC transfers counted apart and your own test wallets left out on request. Includes the seller's Bazaar listings with their payers, calls and measured uptime.

Hacker News stories or comments from the Algolia search API: keyword search (q) or the current front page (mode=front), optionally since a date. Stories give title, URL, HN link, points, comments, author and time. Comments give their text (400 characters, HTML stripped) and the story title. Up to 50 results. Public data, no key.

Public holidays of a country (ISO 2 code) for a year (default: this year): date, local and English names, and whether the holiday is nationwide or regional with its counties. Source: Nager.Date. An empty list is a valid answer.

Put one question to a panel of 3 different AI models and get a single verdict back. Each model answers independently, then a chair synthesizes: verdict, confidence, the points they all agreed on, the dissent, and what would flip the answer. Use it for judgement calls where one model's opinion is not enough: is this safe, is this worth it, which option. No account, no API key, one USDC micropayment per call.

What a wallet spent on x402 APIs on Base in the last days, read from the chain: total, per seller (named by the Bazaar listings that pay to it), per day, and the recent payments, with other USDC transfers counted apart.

The deep council: 4 different AI models, two rounds. Each seat answers, then sees the other seats' positions and revises - so you get a verdict that survived cross-examination, with changed_after_debate on each seat and the dissent that held. For decisions where being wrong is expensive.

Gas prices on Base (default), Ethereum, Arbitrum, Optimism, Polygon or Solana, or chain=all for every chain at once: the base fee and slow, normal and fast priority fees, the latest block, and what a plain transfer and an ERC-20 transfer cost in native token and USD. EVM figures come from eth_feeHistory over the last 20 blocks; Solana from recent prioritization fees. Cached 15 seconds.

Place names to coordinates and back: up to 5 matches for a name, or the place at a coordinate. Each match has a display name, latitude and longitude, country code and type. Attribution: © OpenStreetMap contributors, ODbL. Results are cached seven days.