Libofcongress MCP Server

Last 30 days

Uptime

100%

Response time

249 ms typical, 249 ms slowest 5%

Last check

6 h ago

Next check

any minute now

How to call it

Add it to any MCP client that supports remote servers.

{
  "mcpServers": {
    "libofcongress-mcp-server": {
      "type": "http",
      "url": "https://libofcongress.caseyjhand.com/mcp"
    }
  }
}

6 tools

• libofcongress_search

  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

• libofcongress_get_item

  Retrieve the full metadata record for a specific LOC digital item. Returns contributors, subjects, summary, languages, locations, rights information, physical description, call number, original and online formats, access restrictions, former catalog IDs, notes, related items, and

• libofcongress_search_newspapers

  Search historical newspaper pages in the Chronicling America corpus. Returns matching pages with OCR text excerpts (~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,

• libofcongress_get_newspaper_page

  Retrieve the full OCR text of a specific historical newspaper page along with publication metadata — newspaper title, issue date, place of publication, indexed states, edition, the page's sequence, and the issue's page count. Pass the url field from a libofcongress_search_newspap

• libofcongress_search_subjects

  Search Library of Congress Subject Headings (LCSH) by keyword. Returns controlled-vocabulary subject labels and their URIs. Use the returned label as the subject filter in libofcongress_search — LCSH uses precise, standardized terms that differ from natural language (e.g., "World

• 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", "

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