io.github.cyanheads/libofcongress-mcp-server · v0.5.1 · ai-and-media
io.github.cyanheads/libofcongress-mcp-server is healthy: it completed an MCP handshake in 234 ms and exposes 6 tools.
Search LOC digital collections, Chronicling America newspapers (full OCR), and LC Subject Headings.
Endpoint: https://libofcongress.caseyjhand.com/mcp (streamable-http)
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| Users (last 30 days) | 0 |
| Handshake | Healthy |
| Auth needed | None |
| Tool count | 6 |
| Latency | 234 ms |
| Last checked (UTC) | 2026-10-16T07:20:34.275Z |
| Checked (UTC) | Status | Latency | Error |
|---|---|---|---|
| 2026-10-16T07:20:34.275Z | Healthy | 234 | |
| 2026-10-15T03:25:39.028Z | Healthy | 1886 |
libofcongress_search_items | Search the Library of Congress digital collections by keyword. Optionally filter by material format (photos, maps, newspapers, audio, etc.), date range, subject heading, or geographic location, or scope the search to a single curated collection with collection_slug. Returns item summaries with title |
libofcongress_get_item | Retrieve the full metadata record for a specific LOC digital item. Returns the imprint (place, publisher, and date of publication), contributors, LCSH subject headings and the subject terms the search subject filter accepts, summary, languages, locations, rights information, physical description, ca |
libofcongress_search_newspapers | Search historical newspaper pages in the Chronicling America corpus. Returns matching pages with the opening of each page's OCR text (~500 characters), publication title, date, the states LOC indexes the title under, and the page URL needed for libofcongress_get_newspaper_page. Filters by keyword, d |
libofcongress_get_newspaper_page | Retrieve the full text of one LOC page — a historical newspaper page, or a book or manuscript page — or, with match, only the passages around your search terms, with its publication metadata: for newspapers the title, issue date, place of publication, indexed states, and edition; for every page its |
libofcongress_search_subjects | Search Library of Congress Subject Headings (LCSH) by keyword. Returns authorized subject headings and their URIs, ranked by relevance with a heading that exactly matches the query first; a partial word with no keyword match returns the headings that begin with it. Use the returned label as the subj |
libofcongress_browse_collections | List and browse Library of Congress curated digital collections. Returns collection names, descriptions, item counts, slugs, and URLs. Optionally filter by keyword. Collections are curated subsets of the digital holdings with specific focuses (e.g., "Civil War Glass Negatives", "Baseball Cards", "WP |