Web & Data

List Polymarket category tags (id + label) used to filter markets by category (politics, crypto, sports, pop-culture). Free Polymarket Gamma data.

Fetch the metadata of any xkcd webcomic by its number: title, publication date, alt text and image URL. Backed by the keyless xkcd JSON API. Pass a comic number like 614.

Look up a Polymarket market by its url slug: question, outcomes, outcome prices, conditionId and CLOB token ids. Free Polymarket Gamma data.

Polymarket markets filtered by category tag id (politics, crypto, sports, etc.): question, outcome prices, volume. Free Polymarket Gamma data. Use polymarket-tags to discover tag ids.

Random number API with proof: an integer in your range plus the HMAC-SHA256 server seed revealed so the draw is verifiable after the fact. Provably fair randomness for games, raffles, and tie-breaking agents.

Search MusicBrainz for release groups (albums, singles, EPs) by title. Returns matches with title, primary-type, artist credit and MBID. Keyless (sends a User-Agent). Useful for finding canonical album entries in the open music database.

Search MusicBrainz for recordings (tracks) by title. Returns matches with title, length (ms), artist credit and MBID. Keyless (sends a User-Agent). Useful for resolving song titles to canonical recordings.

Search MusicBrainz for record labels by name. Returns matches with label name, type, area and MBID. Keyless (sends a User-Agent). Useful for music-industry research and label-catalog datasets.

Search breweries by free-text query (matches name) and get back type, address, contact, and lat/long for each hit. Source: Open Brewery DB. Pass a query string in the q param.

Fetch a batch of random trivia questions (multiple choice) with the correct answer, distractors, category, and difficulty. Source: Open Trivia Database. Pass amount and optional type/difficulty query params.

List Project Gutenberg books filtered by language (ISO code, e.g. fr, de, es) and sorted by popularity via Gutendex. Returns count and matching books. Keyless. Useful for building multilingual public-domain reading datasets.

Pull a batch of trivia questions (with category, difficulty, type and the question text) from the Open Trivia Database. Keyless and high-volume. Pass a category id (e.g. 9 = General Knowledge); amount defaults to 5.

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.

Daily river discharge forecast for any coordinate from Open-Meteo's GloFAS-based flood API. Returns a multi-day discharge series in m3/s. Keyless, global. Useful for flood risk monitoring and hydrology agents.

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.

Fetch one Project Gutenberg book by its numeric ID via Gutendex. Returns title, authors, subjects, languages, formats and download_count. Keyless. Useful for resolving a Gutenberg ID to full book metadata and download URLs.

Search the Metropolitan Museum of Art collection by free-text query, optionally only objects with images. Returns total count and a list of matching objectIDs to resolve to full records. Keyless museum API.

Looks up normalized package metadata from the Python Package Index, version, dependencies, license, homepage, and yank/deprecation status, trimmed down from the much larger raw index response. For agents auditing or generating requirements files before running pip install.

Breaks down any text into character, word, and sentence counts, estimated LLM token count, and reading time, computed instantly with nothing stored. Useful for context-budget checks before an API call, content-length validation, and editorial word-count requirements.

Text statistics API: characters, words, sentences, average sentence length, Flesch reading-ease score, estimated reading time, and estimated LLM token count for any text — instant, computed locally, nothing stored. For context-budget checks, readability gates, and content QA in agent pipelines.

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.

Search the Art Institute of Chicago collection by free-text query (artist, title, keyword). Returns ranked matches with artwork IDs and titles. Keyless museum open-access API. Useful for finding artworks before fetching full detail.

Search the Project Gutenberg free ebook catalog by author or title via Gutendex. Returns matching books with title, authors, languages and download_count. Keyless. Useful for public-domain book discovery and reading-list datasets.

Pulls the current day's featured astronomy image along with its title and full explanatory caption, as structured JSON. Built for content agents, daily digest bots, and education tools that want a rotating supply of space imagery with context attached rather than a static image library. Cached 6 hours.