Koskamo

mcp-libraryofcongress

An MCP server for the Library of Congress that allows agents to search inside scanned US newspapers, browse the catalogue, read records, and list digital collections. It connects a chat client to the library's online holdings including books, photographs, maps, and newspapers.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

mcp-libraryofcongress logo, by smeet666Community listingLocal stdioSource reviewed; not executedPublished by smeet666
Vendor documentation

What you can do with it

  • Search inside scanned newspapers
  • Browse the catalogue
  • Read records
  • List digital collections

Source and maintenance

Community listingRegistry 3.1.0MIT
mcp-registry: io.github.smeet666/mcp-libraryofcongress@3.1.0Source repositoryProject website
Last repository push
Latest release
v3.1.0
Maintenance checked

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

mcp-libraryofcongress 3.1.0

npm
mcp-libraryofcongress package definition
{
  "version": "3.1.0",
  "transport": "stdio",
  "identifier": "mcp-libraryofcongress",
  "registryType": "npm",
  "environmentVariables": [
    {
      "name": "LOC_USER_AGENT",
      "description": "Identify your own client. The project's own identifier is appended, so the Library can always reach a human."
    },
    {
      "name": "LOC_MIN_INTERVAL_MS",
      "description": "Minimum milliseconds between requests. Default 6000, floor 3000."
    },
    {
      "name": "LOC_TIMEOUT_MS",
      "description": "Deadline for one catalogue, record or collection request, in milliseconds. Default 30000."
    },
    {
      "name": "LOC_NEWSPAPER_TIMEOUT_MS",
      "description": "Deadline for one search_newspapers request, in milliseconds. The full-text corpus answers in tens of seconds. Default 90000."
    },
    {
      "name": "LOC_LOG_LEVEL",
      "description": "silent, error, info or debug. Default error. Logs go to stderr."
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · repository · passed · metadata changed · updated
  • · backfill · recorded · Pre-expansion baseline; unobserved rich metadata remains unknown

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "mcp-libraryofcongress": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-libraryofcongress@3.1.0"
      ],
      "env": {
        "LOC_USER_AGENT": "<YOUR_LOC_USER_AGENT>",
        "LOC_MIN_INTERVAL_MS": "<YOUR_LOC_MIN_INTERVAL_MS>",
        "LOC_TIMEOUT_MS": "<YOUR_LOC_TIMEOUT_MS>",
        "LOC_NEWSPAPER_TIMEOUT_MS": "<YOUR_LOC_NEWSPAPER_TIMEOUT_MS>",
        "LOC_LOG_LEVEL": "<YOUR_LOC_LOG_LEVEL>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "mcp-libraryofcongress": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-libraryofcongress@3.1.0"
      ],
      "env": {
        "LOC_USER_AGENT": "<YOUR_LOC_USER_AGENT>",
        "LOC_MIN_INTERVAL_MS": "<YOUR_LOC_MIN_INTERVAL_MS>",
        "LOC_TIMEOUT_MS": "<YOUR_LOC_TIMEOUT_MS>",
        "LOC_NEWSPAPER_TIMEOUT_MS": "<YOUR_LOC_NEWSPAPER_TIMEOUT_MS>",
        "LOC_LOG_LEVEL": "<YOUR_LOC_LOG_LEVEL>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.
VS Code configuration
{
  "servers": {
    "mcp-libraryofcongress": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "mcp-libraryofcongress@3.1.0"
      ],
      "env": {
        "LOC_USER_AGENT": "<YOUR_LOC_USER_AGENT>",
        "LOC_MIN_INTERVAL_MS": "<YOUR_LOC_MIN_INTERVAL_MS>",
        "LOC_TIMEOUT_MS": "<YOUR_LOC_TIMEOUT_MS>",
        "LOC_NEWSPAPER_TIMEOUT_MS": "<YOUR_LOC_NEWSPAPER_TIMEOUT_MS>",
        "LOC_LOG_LEVEL": "<YOUR_LOC_LOG_LEVEL>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.
Claude Desktop configuration
{
  "mcpServers": {
    "mcp-libraryofcongress": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-libraryofcongress@3.1.0"
      ],
      "env": {
        "LOC_USER_AGENT": "<YOUR_LOC_USER_AGENT>",
        "LOC_MIN_INTERVAL_MS": "<YOUR_LOC_MIN_INTERVAL_MS>",
        "LOC_TIMEOUT_MS": "<YOUR_LOC_TIMEOUT_MS>",
        "LOC_NEWSPAPER_TIMEOUT_MS": "<YOUR_LOC_NEWSPAPER_TIMEOUT_MS>",
        "LOC_LOG_LEVEL": "<YOUR_LOC_LOG_LEVEL>"
      }
    }
  }
}

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