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Libofcongress MCP Server

Developer ToolsLow Risk10.0MCP RegistryLocalRemote
Free

Server data from the Official MCP Registry

Search LOC digital collections, Chronicling America newspapers (full OCR), and LC Subject Headings.

About

Search LOC digital collections, Chronicling America newspapers (full OCR), and LC Subject Headings.

Remote endpoints: streamable-http: https://libofcongress.caseyjhand.com/mcp

Security Report

10.0
Low Risk10.0Low Risk

Valid MCP server (1 strong, 1 medium validity signals). No known CVEs in dependencies. Package registry verified. Imported from the Official MCP Registry. Trust signals: 8 highly-trusted packages.

6 tools verified · Open access · 1 issue found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

HTTP Network Access

Connects to external APIs or services over the internet.

What You'll Need

Set these up before or after installing:

User-Agent header sent with LOC API requests. LOC recommends a descriptive value for polite access.Optional

Environment variable: LOC_USER_AGENT

Delay in milliseconds between LOC API requests to stay under the 20 req/min rate limit.Optional

Environment variable: LOC_REQUEST_DELAY_MS

Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').Optional

Environment variable: MCP_LOG_LEVEL

HTTP session mode: auto, stateful, or stateless.Optional

Environment variable: MCP_SESSION_MODE

The hostname for the HTTP server.Optional

Environment variable: MCP_HTTP_HOST

The port to run the HTTP server on.Optional

Environment variable: MCP_HTTP_PORT

The endpoint path for the MCP server.Optional

Environment variable: MCP_HTTP_ENDPOINT_PATH

Authentication mode to use: 'none', 'jwt', or 'oauth'.Optional

Environment variable: MCP_AUTH_MODE

How to Install & Connect

Available as Local & Remote

This plugin can run on your machine or connect to a hosted endpoint. during install.

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