Robots.txt inspection API for agents at $0.01 USDC. Call when you need crawl rules and sitemap hints before indexing or scraping a domain. Use for SEO preflight and polite crawlers via x402—no API key, no subscription.

Nobel Prize laureates by name, year or category - prizes, motivation, share and affiliations

Postal code lookup worldwide - place name, state or region and coordinates for a ZIP code in any country

GPT pricing table: what every GPT model costs per token right now — GPT-5, GPT-5 mini, GPT-4o, GPT-4.1, o3 — from OpenAI and every provider that resells or hosts them (Bedrock, Azure, Vertex, OpenRouter, Fireworks). Input, output, cache and batch USD per 1M tokens, sorted cheapest first, so you can compare GPT inference cost across hosts and pick the cheapest place to run one. Normalized, cross-checked, refreshed hourly.

Search 75,000+ public-domain books on Project Gutenberg by title or author

Uploads an image to Twitter/X for the authenticated user and returns a media_id to attach to a tweet. Send the file as multipart/form-data field "file" (e.g. -F "file=@photo.jpeg"); pass auth_token and ct0 as query params. Returns media_id, media_id_string, media_key, size, expires_after_secs, and image metadata.

Dividends and splits on a tokenized stock settle by moving its multiplier; balanceOf never changes, so a naive reader is silently wrong. Coinbase announces each one on chain days ahead. This lists every announced action across all tokenized stocks Coinbase lists, plus any ERC-8056 schedule, and with wallet= which touch that wallet's holdings. Lenders pause a stock's reserve while one is applied. Not financial advice.

Decode a 17-character VIN: ISO 3779 structural validation (check digit), WMI manufacturer lookup, model year, and NHTSA vPIC pattern decode (make, model, trim, body, engine, plant). Public-domain NHTSA data.

Renders JavaScript-heavy SPA pages in real headless Chromium via Cloudflare Browser Rendering, waits for network-idle / selector-ready, strips nav/footer/script chrome, and serializes the fully-rendered DOM into clean, LLM-ready Markdown.

LLM chat completion per call — no account, no API key, no token math. Three flat-priced tiers: fast $0.002 (DeepSeek v4 Flash), smart $0.02 (GPT-5.4 mini), reasoning $0.03 (DeepSeek v4 Pro). Send OpenAI-style messages, get the assistant reply with finish_reason and token usage. Input capped per tier (16k-32k chars); the 402 quotes the exact tier price up front. Model or source unavailable means a 503 and you pay nothing. USDC on Base.

Translate Markdown: Docs That Still Build — Translates a Markdown, MDX or HTML document (docs page, README, blog post, help article) into another language and returns the whole document with only the human text changed. Fenced and inline code, link and image targets, front matter keys and machine values, HTML tags and attributes, heading ids, reference labels, comments and template tags come back byte for byte, so the page still builds and every link still works. Alt text, titles and link text …

Traffic Reality Check: Real Readers vs Bots — Reads the numbers from Cloudflare Web Analytics and zone analytics (GraphQL or the dashboard) and says how many of them are real readers or real server errors, answered as JSON with the computed figures and a short reason. Knows what pollutes the table - the owner's own headless-browser checks, link-preview fetches from the social network that show up as referrals, the site's own Worker and its cache calls counted as visitors or as 5xx errors, the r…

Day-by-day forecast for any point on Earth, up to nine days out, from the Norwegian Meteorological Institute's official model rather than a commercial aggregator. Each day carries its minimum and maximum temperature, total precipitation, strongest wind and the midday symbol, together with the exact model run and the institute's declared units, so a planning decision can cite where the number came from.

Current conditions for any point on Earth, taken from the Norwegian Meteorological Institute's official forecast model rather than a commercial aggregator. Returns temperature, humidity, pressure, wind speed and bearing, cloud cover and the next hour's precipitation, plus the exact model run it came from and the units the institute itself declares, so the figure can be cited and checked instead of merely trusted.

US energy benchmark prices from the EIA (Energy Information Administration) open data API.

Current Base mainnet block number. Use when an agent needs the latest Base block to time or sanity-check a transaction.

Live NZ road events (closures, delays, roadworks) along a driving route or around a named road, pass or place, with plain-English location, delay minutes, map links, route distance, drive time and a Google Maps directions link. Understands landmarks and passes (Desert Road, Arthur's Pass, Milford Road), 'A to B', 'A via X to B'. Free /resolve shows how your input is read before you pay.

Verify whether a medical device holds an FDA 510(k) clearance. Returns cleared/not-cleared verdict with K number, device name, applicant, decision date, product code, and review panel. openFDA 510(k) data (public domain, CC0). NOTE: 510(k) is clearance, not FDA approval.

D1 Migration Writer: SQLite Migrations That Apply — Writes a SQL migration for Cloudflare D1 or SQLite from the current schema and the change wanted, so it applies on the first try and leaves the rows already in the database right. Knows what D1 refuses or breaks on, measured on a real D1 database - BEGIN and COMMIT in the file, foreign keys that cannot be switched off (a rebuild defers them, keeps the table name, and never closes with defer_foreign_keys = false, which on D1 silently skips the …

Reply Language Lock: Answers in the User's Language — Keeps an assistant answering in the language the user writes in, whatever the language of the pasted text, the logs, the code comments, the tool output or the documents it works from. Covers the slips that happen in practice - drifting into the language of an English log or a Russian forum post, mixing in words or letters of a close neighbour (Russian in Bulgarian or Ukrainian, Czech in Polish, Portuguese in Spanish, Dutch in German), answer…