information-retrieval

URL status checker: send any web address and get back its HTTP status code, response latency in milliseconds, and key response headers in one call. Built-in SSRF protections make it safe to point at user-submitted links. Useful for dependency health dashboards, broken-link audits, and confirming an endpoint responds before a scheduled job depends on it.

Returns rhyming words, sound-alikes, or commonly paired adjectives for any input word, ranked by strength of association. Useful for crossword and word-game agents, poetry generation, and naming brainstorms that need a wider candidate list than a model would produce unprompted.

Finds words related to any input word, similar meanings, words that sound alike, or adjectives commonly paired with it, ranked by association strength, up to 20 results per call. For copywriters, product namers, and word-game agents looking for options beyond an LLM's usual first guesses.

Validates a cron expression and lists its next several scheduled run times as ISO timestamps in any timezone, so you can confirm a schedule does what it's supposed to before deploying it. For automation and DevOps agents building or auditing recurring jobs.

Machine-readable English dictionary entry by word: definitions across senses, part-of-speech tags, phonetic pronunciation, syllable count, and related synonyms/antonyms. Deterministic JSON shape for vocabulary apps, crossword helpers, and language-learning agents.

Search the constants table by key, symbol or name substring. Exact matches rank first, then prefix matches, then substring matches. Returns up to `limit` constants (default 20) plus the total match count.

Sniff which structured format an unknown document is. Because formats overlap, returns every plausible format with a 0–1 score plus the best guess — honest about ambiguity rather than pretending certainty.

Fetch data rows from a specific e-Stat statistical table (by id from estat.search), with all category codes (region, item, time period, etc.) pre-resolved to their human-readable Japanese labels in a single call — normally requires a separate metadata lookup and manual code-matching against the raw e-Stat API. Source: e-Stat API, government standard terms of use (CC BY-compatible, commercial use permitted). Factual statistical data only; not investment or economic advice.

Parses loosely formatted phone number input and returns its E.164 standard representation, country, and line type, with a default-country hint for numbers missing a country code. Built for lead deduplication, SMS delivery systems, and validation steps that reject malformed numbers before they hit a paid messaging API.

URL expansion API: safely follow a short or redirecting link (up to 6 hops, SSRF-guarded) and return the final URL, complete redirect chain, and final HTTP status — see where a link REALLY goes before touching it. For link-safety checks, affiliate auditing, and phishing triage.

Look up any topic on the web's largest collaboratively-edited encyclopedia and get back the title, short description, lead summary paragraph, thumbnail image, and canonical article URL as structured JSON. For entity enrichment, fact-checking, and research agents that need a grounded summary instead of a hallucinated one. Cached 24 hours, attribution included.

Pull a structured summary for any known topic — short description, lead paragraph, thumbnail, and source URL — from a continuously updated, community-maintained knowledge base. Accepts titles with spaces or underscores. Built for research agents and chatbots that need quick, grounded background on a person, place, or concept.

Apply a Unicode normalisation form (NFC, NFD, NFKC or NFKD) to a string. Reports whether the text changed and its length in UTF-16 code units and code points.

Fuzzy-search countries, currencies and languages by name or code. Scope with `registry` (defaults to all). Matches are ranked exact-code/name → prefix → substring.

List the supported units and their metadata (abbreviation, measure, system, singular/plural names), optionally filtered to a single measure — a discovery endpoint for choosing valid `from`/`to` values.

Compute a cryptographic digest (SHA-2, SHA-3, BLAKE2, and legacy SHA-1/MD5/RIPEMD-160) of some data. The input may be utf8/hex/base64/base64url and the digest is returned as hex/base64/base64url.

Build a valid .ics document from event fields (summary, start/end, location, …).

Search a privacy-safe metadata index derived from 77,053 archived census rows and deduplicated to 23,370 unique content hashes. Includes readiness, quarantine, domain, file type, field names and provenance hashes; does not redistribute raw fields, media or third-party content.

Score up to 100 texts with a transparent deterministic positive and negative keyword lexicon.

Create a deterministic extractive summary by ranking and selecting sentences from the supplied text.

Screen a party name against the current official U.S. Treasury OFAC SDN primary-name list and return transparent potential matches.

DNS lookup — Resolve DNS records via DNS-over-HTTPS.

Retrieve bounded public web content with source, timestamp and cryptographic hashes

Looks up one IPv4 or IPv6 address against the two authoritative, keyless public sources: RDAP registry data (who holds the block, in which country, since when, abuse contact) via the ARIN-to-RIR referral chain, and the origin ASN from Team Cymru's DNS service. No city-level geolocation and no VPN/proxy detection — those need a licensed commercial database this endpoint deliberately does not use. Built for going through a list of IPs one at a time.