About Library Of Congress
Library Of Congress is an MCP server for accessing Library of Congress material through loc.gov. It is intended for users searching library content; the README shows a query-based search call but does not list specific tools.
Key features
- 01Search library material by query
- 02Access through the Pipeworx gateway
- 03Call search over HTTP
Use cases
- 01Search for Civil War photographs
- 02Ask a natural-language collection query
- 03Retrieve library material from an MCP client
MCP support
It provides MCP clients access to Library of Congress data through a dedicated endpoint or the full Pipeworx gateway. The README does not specify its tool list.
Configuration
Remote servers need no local install. Pick your client, then copy the config or install in one click.
https://gateway.pipeworx.io/library-of-congress/mcpclaude mcp add --transport http pipeworx-io-library-of-congress https://gateway.pipeworx.io/library-of-congress/mcp{"mcpServers":{"pipeworx-io-library-of-congress":{"type":"http","url":"https://gateway.pipeworx.io/library-of-congress/mcp"}}}Open in Cursor{"servers":{"pipeworx-io-library-of-congress":{"type":"http","url":"https://gateway.pipeworx.io/library-of-congress/mcp"}}}Open in VS Code{"mcpServers":{"pipeworx-io-library-of-congress":{"type":"http","url":"https://gateway.pipeworx.io/library-of-congress/mcp"}}}{"mcpServers":{"pipeworx-io-library-of-congress":{"serverUrl":"https://gateway.pipeworx.io/library-of-congress/mcp"}}}Run commands in a terminal; paste JSON into the client’s MCP config and restart. Servers that need sign-in will prompt on first connect.
Tools
Details
From the project READMEmcp-library-of-congress
Library of Congress (loc.gov) MCP — the world's largest library.
Part of Pipeworx — an MCP gateway connecting AI agents to 965+ live data sources.
Tools
| Tool | Description |
|---|
Quick Start
Add to your MCP client (Claude Desktop, Cursor, Windsurf, etc.):
{
"mcpServers": {
"library-of-congress": {
"url": "https://gateway.pipeworx.io/library-of-congress/mcp"
}
}
}
Or connect to the full Pipeworx gateway for access to all 965+ data sources:
{
"mcpServers": {
"pipeworx": {
"url": "https://gateway.pipeworx.io/mcp"
}
}
}
Using with ask_pipeworx
Instead of calling tools directly, you can ask questions in plain English:
ask_pipeworx({ question: "your question about Library Of Congress data" })
The gateway picks the right tool and fills the arguments automatically.
More
License
MIT
No MCP client? Call it over HTTP
curl -X POST https://gateway.pipeworx.io/v1/tools/search \
-H 'Content-Type: application/json' \
-d '{"query":"Civil War photographs"}'
No account needed for the first calls. Inspect any tool: GET https://gateway.pipeworx.io/v1/tools/search. Find one: POST https://gateway.pipeworx.io/v1/tools/search_packs with {"query":"..."}.
Comments
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