Books for a subject from Open Library, no key. Returns works tagged with the subject plus counts. For AI agents discovering books by topic.

Binance Futures perpetual funding rate for any contract. Mark price, index price, mark-index spread, next funding timestamp, predicted rate, funding history. AI agent perp trader, basis-trade bot, funding-arb detector, leverage-flush monitor, sentiment quantifier.

Batch funding rates for multiple Binance Futures perps in one call. Per-symbol mark price, funding rate, next funding timestamp, predicted next rate. AI agent funding arbitrage, multi-pair basis trader, market maker funding skew, hedge bot, batch perp API.

Open interest for any Binance Futures perpetual with 24h change %, USD notional, 5-minute OI history over last 24 hours. AI agent leverage buildup detector, squeeze-setup finder, funding-pressure precursor, position monitoring, perp OI API.

Search for a city or town by name and get back matching places with coordinates, country code, timezone, elevation, and population. Pass a name (and optional count), get structured results. Free Open-Meteo geocoding.

Turn coordinates into an address. Pass lat and lon and get the nearest OpenStreetMap feature with display name, type, and address components. Backed by Nominatim/OSM, free and keyless.

Geocode a full US street address to latitude/longitude with the official matched address and TIGER line metadata. Authoritative US Census Bureau geocoder, no key required. Pass a one-line address string.

List every poet available in PoetryDB, a database of classic public-domain poetry. Returns an array of author names. Keyless, no parameters. Useful as a directory before querying poems by a specific author.

Look up a Pokemon by name from PokeAPI, no key. Returns types, stats, abilities, height, and weight. For AI agents in games, trivia, and entertainment apps.

Look up a Pokemon ability by name and get its id, main-series flag and effect description. Backed by PokeAPI. Pass an ability slug like blaze or overgrow.

Get the battle stats of any Pokemon move: power, PP, accuracy, elemental type and damage class (physical/special/status). Backed by PokeAPI. Pass a move slug like flamethrower.

Look up any Pokemon by name or id and get its Pokedex profile: national id, types, height, weight, base experience and abilities. Backed by PokeAPI, the canonical free Pokemon dataset. Pass a name like charizard or a numeric id.

Get the battle matchup chart for any Pokemon elemental type: which types deal double, half, or no damage to it, plus the count of Pokemon that have the type. Useful for team-building and battle logic. Backed by PokeAPI.

Look up any postal code worldwide by 2-letter country code. Returns place name, state/region, latitude, and longitude. Covers Germany, UK, Canada, Netherlands, Spain and dozens more countries. Free Zippopotam.us data.

Resolve a UK postcode to its full record: country, region, admin district, ward, parliamentary constituency, eastings/northings, and lat/long. Free postcodes.io data covering all of Great Britain.

Given a US state code and a city name, return every ZIP code in that city with coordinates. Useful for territory mapping and address validation. Free Zippopotam.us postal data.

Resolve any US ZIP code to its place name, state, and geographic coordinates. Backed by the free Zippopotam.us postal database. Pass a 5-digit ZIP and get back city, state abbreviation, latitude, and longitude.

Spot prices in USD per troy ounce for gold XAU, silver XAG, platinum XPT, palladium XPD with latest OHLC from Stooq. AI agent precious-metals tracker, gold-bitcoin ratio analyst, inflation hedge, diversification calculator, macro asset API.

Chemical properties for a compound by name from the NIH PubChem service, no key. Returns molecular formula, molecular weight, and IUPAC name. For AI agents in chemistry, drug discovery, and materials research.

Official public holidays for a country and year from Nager.Date, no key. Returns each holiday date, local and English name, and type. For AI agents scheduling, computing business days, and planning across regions.

USGS earthquakes within a radius of a latitude and longitude, no key. Returns nearby events with magnitude, place, time, and distance ordering by time. For AI agents doing location specific seismic risk checks.

All earthquakes detected worldwide in the past day from the USGS real time feed, no key. Returns magnitude, place, time, and coordinates per event. For AI agents in insurance, logistics, and risk monitoring.

Search USGS earthquakes by minimum magnitude and optional start time, no key. Returns matching events with magnitude, place, time, and coordinates, newest first. For AI agents querying seismic history on demand.

Significant earthquakes worldwide in the past month from the USGS feed, no key. Returns magnitude, place, tsunami flag, time, and coordinates. For AI agents tracking major seismic events and disaster response.

Earthquakes of magnitude 4.5 and above worldwide in the past week from the USGS feed, no key. Returns magnitude, place, time, and coordinates. For AI agents monitoring significant seismic activity.

Get the FavQs quote of the day. Returns quote body, author, topic tags and a URL. Keyless, no parameters. Useful for daily-quote feeds with categorization tags.

Fetch the Wikiquote REST summary for a page (e.g. Albert_Einstein). Returns title, displaytitle and a plaintext extract describing the subject. Keyless (sends a User-Agent). Useful for quotation-source context and author lookups.

Structured domain registration data over RDAP, the modern WHOIS replacement, no key. Returns registrar, status, nameservers, and key event dates. For AI agents doing domain due diligence, fraud checks, and asset inventory.

Structured IP address allocation data over RDAP, no key. Returns the network range, holder organization, country, and registry. For AI agents enriching IPs for security, abuse, and geolocation context.

Fetch full metadata for one Federal Register document by document number: title, abstract, action, publishing agencies and effective dates. Official US Federal Register API. Useful for tracking specific rules, notices and presidential documents.

Retrieve the latest US Executive Orders from the Federal Register, with title, document number, abstract and publication date. Official Federal Register API filtered to presidential document type executive_order. Useful for policy tracking and civic monitoring.

Full-text search of US Federal Register documents by term. Returns matching titles, document types, abstracts and document numbers with a total count. Official Federal Register API. Ideal for regulatory monitoring on any topic or keyword.

A random Bible verse from a chosen public-domain translation (web, kjv). Returns book, chapter, verse and text. Keyless bible-api.com. For agents building verse-of-the-day or daily devotional features.

Any Bible verse or passage by reference (John 3:16, Romans 8:28-30) in a chosen public-domain translation (web, kjv). Returns book, chapter, verse and text. Keyless bible-api.com. For agents quoting scripture.

Daily Islamic prayer times (Fajr, Sunrise, Dhuhr, Asr, Maghrib, Isha, Imsak, Midnight) for any city or address with a configurable calculation method. Keyless Aladhan. For agents building prayer reminders or schedules.

Islamic prayer times for an exact date and lat/lng with configurable method. Returns Fajr, Sunrise, Dhuhr, Asr, Maghrib, Isha. Keyless Aladhan. For agents needing precise location-based salah schedules.

Qibla compass direction in degrees toward the Kaaba from any lat/lng. Keyless Aladhan. For agents building prayer-direction or compass features.

The 99 Names of Allah (Asma al-Husna) with Arabic script, transliteration and English meaning. Keyless Aladhan. For agents building Islamic reference or devotional content.

Single Quran ayah by global verse number in any edition/translation (en.asad, quran-uthmani, etc). Keyless Al Quran Cloud. For agents quoting or studying scripture.

Full Quran surah (chapter) with every ayah in any edition/translation (en.asad, quran-uthmani, etc). Includes English name, revelation type, ayah count. Keyless Al Quran Cloud. For agents reading or analyzing scripture.

Reverse geocode a latitude and longitude to a place from BigDataCloud, no key. Returns city, locality, principal subdivision, country, and codes. For AI agents turning coordinates into place names.

River discharge (flood) forecast for a latitude and longitude from the Open-Meteo flood API, no key. Returns daily river discharge in cubic meters per second. For AI agents in flood risk, insurance, and water management.

Approximate-match a drug name string to RxNorm concepts from NIH RxNav, no key. Returns ranked candidate RxCUIs and names. For AI agents normalizing messy or misspelled medication names.

Drug products related to a name from the NIH RxNav RxNorm service, no key. Returns concept groups with product names and RxCUIs. For AI agents enumerating formulations and strengths of a medication.

Resolve a drug name to its RxNorm concept identifier RxCUI from the NIH RxNav service, no key. Returns the RxCUI list for the name. For AI agents normalizing medication names across systems.

Spelling suggestions for a drug name from NIH RxNav, no key. Returns corrected drug name candidates. For AI agents validating and correcting medication name input.

Full reported history of one XBRL financial concept (Revenues, Assets, NetIncomeLoss) for a US public company by SEC CIK from SEC EDGAR: every period, value, unit, form, filing. For AI agents extracting structured fundamentals and building models.

All XBRL company facts for a US public company by SEC CIK in one call from SEC EDGAR: entity name plus the full us-gaap and dei fact set with periods and values. For AI agents pulling complete fundamentals, screening, or seeding a knowledge base.

Latest SEC EDGAR filings for any US-listed company: 10K annual, 10Q quarterly, 8K material events, S1 IPO, Form 4 insider transactions. Returns date, form type, accession number, direct filing URL. AI agent corporate event tracker, insider activity bot, equity research API.

One XBRL concept reported by ALL US public companies for a single period from SEC EDGAR frames, no key. Returns each company CIK, entity name, and value. For AI agents screening or comparing a financial metric across the market.