information-retrieval

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.

One curious but true fact, in English or Spanish, filtered by topic: science, computing, history or nature. Takes parameters, returns an id so you can avoid repeats across a session, and accepts a seed for a reproducible answer.

Resolve current DNS records and fetch public RDAP registration metadata for a domain.

Fetch public IP network, ASN, organization, location, and timezone context. This does not claim an abuse or threat score.

Returns normalized metadata for any npm package, current version, license, dependency list, and whether it's been deprecated, without needing to parse the full, much larger raw registry response. For agents auditing a project's dependency tree or deciding what to install.

Email validation — Syntax check + live MX/deliverability + disposable-domain flag.

Latest version, licence, deprecation, repository and dependency count for an npm, PyPI or crates.io package. Live from the registry.

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

Screen a name against OFAC SDN plus the EU, UN, and UK consolidated lists with fuzzy matching and confidence scores. POST /v1/ofac with a {name} and get matches and the lists checked as one JSON object. Deterministic per daily cache. Pay per request in USDC; no account, no API key.

Structured lookup of Japan law articles containing a keyword, via live proxy to e-Gov Law API v2 (Digital Agency). Returns law title/id, category, excerpt and source URL. Live data, not cached. Factual; not legal advice.

Search posts within one subreddit (not site-wide — use reddit.search.list for that).

Fetch a public HTTP(S) page with private-network blocking and return bounded Markdown-like content plus title, description, Open Graph image, status, and URL metadata.

Lists repositories with optional filters and pagination, sorted by composite score by default.

Returns a day-by-day weekend shape (arrival, main day), a lodging posture recommendation, and transit strategy, with confidence caveats. Use to draft a 2-3 day trip between an origin and destination.

Any RSS, RSS/RDF or Atom feed parsed into one shape: title, link, ISO date, author, summary and categories. Pass since to poll for changes.

Runs the same substring name search already used by sanctions.uk.check, plus the JP MOF and OFAC name lookups behind sanctions.cross_check, against all three lists in a single call instead of three separate ones. Same underlying data and matching method as those two products -- no new list, no new matching logic. Factual screening data; not legal or compliance advice.

PEP + sócios + até 10 graus de relacionamento societário até a pessoa física final. Revenda de fornecedor com fonte pública/institucional. Uso restrito a finalidade legítima; consultas são auditadas.

Check the status and tracking of a physical letter previously sent via POST /api/letters. Returns render status, expected delivery date, and (for certified mail) the USPS tracking number.

Check the status and tracking of a physical letter previously sent via POST /api/letters. Returns render status, expected delivery date, and (for certified mail) the USPS tracking number.

Find new or changed U.S. federal grants for a maintained scope. Use scope, as_of, window_days, event_limit, and continuation cursor inputs. Receive JSON with events, changed fields, deadline risks, award-value changes, dataset status, evidence URLs, and next_request.

Returns latest per-symbol signal scores and a ranked top_k list across crypto and supported stock symbols — pair with /kronos/risk and /kronos/forecast for full decision context.

Check robots.txt before crawling or scraping a page. Decide whether GPTBot, ClaudeBot, Googlebot, or another crawler may fetch the exact URL and return ALLOW/DENY, winning rule, crawl-delay, sitemap URLs, and live provenance.