Libraryofcongress MCP server

by smeet666·io.github.smeet666/mcp-libraryofcongress·v3.0.1

Search inside scanned US newspapers and browse the Library of Congress catalogue. No API key.

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Usage numbers are collected on the next scan

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If you have run it, two minutes of your experience saves the next person an afternoon.

No tool declarations could be read from the package source. They show once the server is installed.

Not scanned yet. New registry listings are scanned within a day of import.

Runs npx -y mcp-libraryofcongress on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add mcp-libraryofcongress -- npx -y mcp-libraryofcongress

Is Libraryofcongress MCP server safe?: Not known yet: the safety scan has not run. New listings are scanned within a few days.
How do I install Libraryofcongress?: It runs on your machine. Copy the Claude Code, Claude Desktop or Cursor config from the install section.
Does Libraryofcongress need an API key?: No secret keys are declared. It reads 5 settings from the environment.
Is Libraryofcongress maintained?: The latest release is v3.0.1.
What can I use instead of Libraryofcongress?: Servers from other publishers that do the same job: Zotero MCP server, Eur Lex MCP server and Cert Atlas MCP server. Compare all Libraryofcongress alternatives.

Same job from other publishers: the closest match first, then the best rated.

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Local package. It runs on your machine, not through the gateway.

LOC_USER_AGENTIdentify your own client. The project's own identifier is appended, so the Library can always reach a human.
LOC_MIN_INTERVAL_MSMinimum milliseconds between requests. Default 6000, floor 3000.
LOC_TIMEOUT_MSDeadline for one catalogue, record or collection request, in milliseconds. Default 30000.
LOC_NEWSPAPER_TIMEOUT_MSDeadline for one search_newspapers request, in milliseconds. The full-text corpus answers in tens of seconds. Default 90000.
LOC_LOG_LEVELsilent, error, info or debug. Default error. Logs go to stderr.

Claim it to keep the listing current and reply to reviews. Claiming never changes the grade or hides a review.

Shows the safety grade and links back to this page. It updates itself after every scan and review.

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