information-retrieval

Check if an address or identity (Twitter, email, username) exists in database.

Retrieves status and monitoring information for configured system monitors.

URL metadata extraction and unfurling ($0.01)

Is this person or company sanctioned? Screens a name against the live US Treasury OFAC SDN and Consolidated (non-SDN) lists — sanctions screening, watchlist check, KYC/AML pre-check, counterparty screening before a payment. Fuzzy-matches primary names AND every OFAC alias, so transliteration and word-order variants still hit. Deterministic: no LLM. Returns official OFAC rows verbatim (programs, SDN uid, remarks) with a 0-100 match score.

Single-paper lookup by DOI or title for research agents — citation count, influence, open-access status with a direct legal-OA link (Unpaywall), venue, and a TLDR. Deterministic passthrough over OpenAlex + Semantic Scholar + Unpaywall, no synthesis, cheap and fast.

Executes computational queries and returns calculated results across mathematical, scientific, and general knowledge domains.

Deterministic, rule-based proofreading flags — passive voice, adverbs, wordiness, filler, repeated words, whitespace, a/an, punctuation, sentence length, capitalization. Each flag carries an offset + suggestion. For long text use POST.

Deterministic citation formatter — APA 7, MLA 9, Chicago 17 author-date, BibTeX. From structured fields, returns the reference entry (markdown/html/plain) + the in-text citation, reproducing published style-manual examples exactly. For full author lists use POST. Every answer signed. Free sample, no payment required: GET /play/cite

Stack Overflow question search. Returns top-scored questions matching the query with answer counts, accepted-answer status, tags, and body excerpts. Filter by tags (comma-separated). Sort by votes, relevance, activity, or creation date. Useful for developer agents debugging errors or researching library patterns.

Search for upcoming concerts. Supports city, date range, genre, and artist filtering.

Returns content-change signals for any public URL: ETag, Last-Modified, Content-Length, and Content-Type via HTTP HEAD. Falls back to GET + SHA-256 of the first 32 KB when the server returns no cache markers. Store the snapshot and re-call periodically to detect changes. Useful for monitoring competitor pricing, news, regulatory filings, or any public page.

Retrieve an ESG (Environmental, Social, Governance) and sustainability profile for a company including key initiatives, ratings, controversies, and reporting frameworks.

Retrieve detailed information about a university or college including location, type, enrollment, accreditation, notable programs, and key statistics.

Fetch a PDF by URL and return its text as Markdown-ish plain text, page by page

Search Wikipedia and pull article summaries in 300+ languages. Pass "query" for ranked search results (title, snippet, link) or "title" for one article's summary, description, and thumbnail. Official MediaWiki API; content is CC BY-SA 4.0, attributed in every response. POST a JSON body like: {"query":"Ada Lovelace","limit":5}

Performs searches across social intelligence data sources.

Resolve a public docs, changelog, release-note, pricing, or policy page into clean markdown and metadata for autonomous agents.

List & search Pokemon species by name, type or Pokedex range — paginated structured JSON reference for game agents

Looks up classic and contemporary books by title, author, or ISBN via Open Library (748M+ editions). Returns publication year, subjects/genres, page count, cover images, and links to read online via Project Gutenberg or Internet Archive. Useful for research agents, reading recommendation workflows, literature analysis, and bibliographic data enrichment.

Search the Federal Register for Rules, Proposed Rules, and Notices matching a keyword — returns title, abstract, document type, agencies, significance, effective date, and links. No API key. $0.002/call.

Parse and explain any Unix cron expression in plain English. Returns human-readable schedule description, field breakdown, and the next N run times (UTC). Supports @yearly/@monthly/@weekly/@daily/@hourly shortcuts. Zero external calls.

Wikipedia article lookup and search. Given a search query, returns the top matching Wikipedia articles with title, plain-text extract (~800 chars), description, thumbnail URL, page URL, and last-modified date. Use for rapid factual lookup, entity enrichment, concept explanation, or pre-flight research on any topic. No API key required.

Fetches and parses any public RSS 2.0 or Atom 1.0 feed. Returns feed metadata (title, description, language, last updated) and structured items (title, link, 400-char summary, author, published date, GUID). Useful for monitoring news, blog posts, GitHub release notes, Reddit RSS, arXiv category feeds, or security advisories.

Country information lookup by name, ISO code (alpha-2 or alpha-3), or capital city. Returns: official name, ISO codes, capital, population, area (km²), region, languages, currencies (code + symbol), borders, calling code, timezones, and flag image URL. Useful for international business agents, geographic enrichment, currency identification, and compliance workflows.