information-retrieval

Search Hacker News and Lemmy posts by query, sort and time window, merged, with score, comments, permalink and excerpt. Community search across Hacker News and Lemmy in one call, no key: posts by query, sorted by relevance, new or top, over a time window, with score…

Read a page and get a deterministic verdict on whether the retrieval can be trusted, with evidence. PRIVATE BET…

Every image on a page with its resolved URL, alt text and dimensions, plus the social preview image. Body: {url}.

Trace the redirect chain of a URL to its final destination without downloading page bodies: every hop with its status code, time and Location header, the final URL, whether the domain changed, and loop detection. Useful before trusting a short link or an ad link. Query: ?url=https://bit.ly/…

Newstex MCP Network: one page of metadata-only story search results.

Deterministic unit conversion reproducing NIST SP 811 exact factors (length, mass, volume, energy, power, pressure, force, area, speed, data, angle, frequency + affine temperature). Every answer signed. Free sample, no payment required: GET /play/unit

Exact structured diff. mode=text -> unified diff + line counts; mode=json -> an RFC 6902 JSON Patch (RFC 6901 pointers) that round-trips a->b; mode=words -> inline word-level opcodes. For large inputs use POST. Every answer signed. Free sample, no payment required: GET /play/diff

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

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.

Retrieve a bounded passage from the public-domain Berean Standard Bible or World English Bible with exact source labels and provenance.

Find source-linked scientific papers by topic. Returns metadata pointers, authors, dates, licence evidence when supplied by the source, and corpus provenance; it does not sell paper text or infer reuse rights.

Get details for a Reddit community (subreddit).

Fetch a URL and return its main content as clean Markdown (boilerplate stripped)

Search Federal Register rulemaking: new and changed rules, comment windows, and docket links. POST /v1/federal with a {query} and get matching documents as one JSON object. Deterministic per document. Pay per request in USDC; no account, no API key.

US Code and CFR section lookup plus legislative bill tracking from govinfo. POST /v1/us with a {title} (and optional section) and get the regulation text and structure as one JSON object. Deterministic per compilation. Pay per request in USDC; no account, no API key.

Newstex MCP Network: one page of metadata-only story search results.

Groups managed news feeds into events when an agent needs a compact news briefing. Supply topic, language, time window and result limit using the published schema. Returns headlines, a short abstract, first-report time, reporting-source counts and citations. Coverage is limited to the managed feed set; source count is not independent confirmation. Third-party article bodies are never returned.

Screen a name in one call against US OFAC SDN, the EU Consolidated Financial Sanctions List, UK OFSI, the UN Security Council Consolidated List, and Wikidata-derived Politically Exposed Persons (PEP) data -- with fuzzy name matching, not exact-only. Real competitor research (2026-09-11) found this exact bundle+fuzzy-match shape is what actually converts in this niche; the single-source exact-match ofac-sanctions-search-v1 listing did not.

Retrieve a bounded evidence report for a validated Polymathica solver, including validation state/version, implementation source, evidence location, scope summary and registry-snapshot provenance.

Academic literature search over OpenAlex (250M+ works with citation counts) or arXiv: title, authors, year, venue, DOI, abstract

Parse an RSS/Atom feed into structured items (title, link, published, summary) — or auto-discover the feed from a site URL

Retrieves photos associated with a specific location.

Return title, description, OpenGraph card, canonical URL, feeds, favicon and detected technologies for one URL.

Viewport or full page, optional element selector, dark mode and cookie banner removal. Returns base64 image plus a short lived fetch URL, byte size, load time and the final HTTP status of the page.