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Human for hire by AI agents: ground-truth checks, photo evidence, errands near Crystal Lake, IL

Air quality in St. Louis right now: European and US AQI, PM2.5, PM10, ozone, nitrogen dioxide, sulphur dioxide and carbon monoxide with a health label, from Open-Meteo Air Quality (CAMS). Outdoor-activity and health decisions for St. Louis. $0.01 per call.

Everything free by Fergus Hume: the 100 catalogued public-domain books, audiobooks and texts credited to Fergus Hume across Project Gutenberg, LibriVox and Internet Archive, most popular first, each with direct download links. Add words to narrow by title. Re-verified daily. $0.01 per page of 20.

Is the IPv4 address inside 70.24.0.0/13 (Bell Canada)? Pure bit-mask check, no network call, returning inside true/false with the range's first/last address and size. Precise allow/deny rules for a well-known block. $0.01 per check.

Air quality in Milan right now: European and US AQI, PM2.5, PM10, ozone, nitrogen dioxide, sulphur dioxide and carbon monoxide with a health label, from Open-Meteo Air Quality (CAMS). Outdoor-activity and health decisions for Milan. $0.01 per call.

Air quality in Havana right now: European and US AQI, PM2.5, PM10, ozone, nitrogen dioxide, sulphur dioxide and carbon monoxide with a health label, from Open-Meteo Air Quality (CAMS). Outdoor-activity and health decisions for Havana. $0.01 per call.

RFC 6454: title, authors, publication date, status (Internet Standard, Proposed Standard, Informational…), page count, what obsoletes or updates it and what it obsoletes, keywords, abstract and links to the HTML/text versions, from rfc-editor.org. One RFC, one call, for protocol work. $0.01 per call.

Free audiobooks on "India": public-domain recordings (LibriVox and Internet Archive audio) whose subject tags match, with runtime, language and mp3 links, most downloaded first. Add words to narrow. $0.01 per page of 20.

Change watch for ip listed on sorbs: runs the check, compares it with the result from your previous call for the same ip (kept 90 days) and returns the current answer, changed true/false, the fields that changed with before/after values, and when it was last seen. Schedule it to be alerted when this changes. $0.02 per check.

Air quality in Chicago right now: European and US AQI, PM2.5, PM10, ozone, nitrogen dioxide, sulphur dioxide and carbon monoxide with a health label, from Open-Meteo Air Quality (CAMS). Outdoor-activity and health decisions for Chicago. $0.01 per call.

Air quality in Windsor right now: European and US AQI, PM2.5, PM10, ozone, nitrogen dioxide, sulphur dioxide and carbon monoxide with a health label, from Open-Meteo Air Quality (CAMS). Outdoor-activity and health decisions for Windsor. $0.01 per call.

Air quality in Victoria right now: European and US AQI, PM2.5, PM10, ozone, nitrogen dioxide, sulphur dioxide and carbon monoxide with a health label, from Open-Meteo Air Quality (CAMS). Outdoor-activity and health decisions for Victoria. $0.01 per call.

Air quality in Hong Kong right now: European and US AQI, PM2.5, PM10, ozone, nitrogen dioxide, sulphur dioxide and carbon monoxide with a health label, from Open-Meteo Air Quality (CAMS). Outdoor-activity and health decisions for Hong Kong. $0.01 per call.

Merchant product catalogs for AI agents: price, availability, specs, variants, buy links. Read-only.

Hill radius of a planet in AU and km from its mass, orbit, eccentricity and star mass, with the stable-moon region.

+8 more from NASA Exoplanets

Same-as links for a Wikidata entity: VIAF, ISNI, GND, Library of Congress, GeoNames, Wikipedia editions, exact-match URLs.

+3 more from Wikidata Facts

Room mode frequencies (axial, tangential, oblique) for a rectangular room, plus Schroeder frequency from RT60.

+8 more from Audio Calc

Match a misspelled or branded drug name to RxNorm: best candidates with RxCUI identifiers, names and match scores.

+2 more from Medical Codes and Drug Names

Levenshtein and Damerau-Levenshtein edit distance (restricted and unrestricted) between two texts, with a 0 to 1 similarity.

+6 more from Text Similarity

Kelly criterion fraction for a stated win probability and payoff, with growth rate and overbet threshold. NOT advice.

+4 more from Portfolio Stats

Friction pressure loss in psi (and feet of head) over a pipe run by the Hazen-Williams formula, from flow, size and C factor.

+5 more from Plumbing & Pipe Flow Calc

Human-equivalent age of a dog by the AVMA 15-9-5 rule and the 2020 epigenetic-clock formula 16 ln(age) + 31.

+6 more from Pet Care Calc

Latest observed water level at a NOAA station against its tide prediction: the difference shows surge or blow-out in feet.

+4 more from Marine Conditions

Agent-native dental planning MCP for plan drafts, presentations, and price estimates.

XRPL fees, order books, CLOB/AMM slippage for agents. Free /mcp; x402 pay-per-call at /mcp/pro.

Analyze customer reviews: sentiment, emotion, topics, themes, digests, and drafted replies.

Evidence-backed AI content studio with 21 stable trend intelligence tools.

RFC 791: title, authors, publication date, status (Internet Standard, Proposed Standard, Informational…), page count, what obsoletes or updates it and what it obsoletes, keywords, abstract and links to the HTML/text versions, from rfc-editor.org. One RFC, one call, for protocol work. $0.01 per call.

MMO game for AI agents: mine, trade, craft, explore, and battle in a galaxy of ~500 systems

What moved in Indian retail: store openings, deals, results, launches, leadership, each verified.