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mcp-libraryofcongress MCP Server
Search inside scanned US newspapers and browse the Library of Congress catalogue. No API key.
Install
~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"smeet666-mcp-libraryofcongress": {
"command": "npx",
"args": [
"-y",
"mcp-libraryofcongress@3.0.1"
],
"env": {
"LOC_USER_AGENT": "",
"LOC_MIN_INTERVAL_MS": "",
"LOC_TIMEOUT_MS": "",
"LOC_NEWSPAPER_TIMEOUT_MS": "",
"LOC_LOG_LEVEL": ""
}
}
}
}
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Environment
| Name | Required | Notes |
|---|
| LOC_USER_AGENT | No | Identify your own client. The project's own identifier is appended, so the Library can always reach a human. |
| LOC_MIN_INTERVAL_MS | No | Minimum milliseconds between requests. Default 6000, floor 3000. |
| LOC_TIMEOUT_MS | No | Deadline for one catalogue, record or collection request, in milliseconds. Default 30000. |
| LOC_NEWSPAPER_TIMEOUT_MS | No | Deadline for one search_newspapers request, in milliseconds. The full-text corpus answers in tens of seconds. Default 90000. |
| LOC_LOG_LEVEL | No | silent, error, info or debug. Default error. Logs go to stderr. |
Tools show up when the registry metadata or the repository README lists them. GitHub enrichment fills this in when a token is configured.
About
Search inside scanned US newspapers and browse the Library of Congress catalogue. No API key.
FAQ
- What is mcp-libraryofcongress?
- Search inside scanned US newspapers and browse the Library of Congress catalogue. No API key.
- How do I install mcp-libraryofcongress?
- Pick a client above and copy the generated config. Cursor and VS Code also have a deep link when the server can run locally or remotely.
- Is mcp-libraryofcongress official?
- No. Registry-listed is not the same as vendor-official. Read the methodology for the difference.
- How is the trust score calculated?
- This listing scores 13 (Limited). The formula is published on the methodology page.
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