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Use Library of Congress with your AI.

Connect your account once and let the AI you already use work with it, without building another integration. Search and retrieve millions of historical items, maps, photos, and manuscripts from the world's largest library.

Included with plan

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

Complete set · 8 capabilities

The complete Library of Congress capability set.

These are the exact actions your AI can choose when you ask it to work with Library of Congress.

Capability set01 / 02

01-04

4 capabilities in this set.

Part of 8 available through Library of Congress.

  1. 01

    List collections

    List all digital collections

  2. 02

    Search

    Using a keyword query. Search the entire Library of Congress website

  3. 03

    Search format

    G., maps, photos, audio). Search items of a specific format

  4. 04

    Get collection items

    List items within a specific collection

Capability set02 / 02

05-08

4 capabilities in this set.

Part of 8 available through Library of Congress.

  1. 05

    Get image info

    Json for a specific image identifier. Get technical metadata about an image (IIIF)

  2. 06

    Get item

    Get detailed bibliographic data for a single item

  3. 07

    Get resource

    G., a specific page of a newspaper) using resource_id. Get access to discrete digitized files

  4. 08

    Get text service

    Access full-text OCR, word coordinates, and context snippets

Observed, not estimated

898ms average. Fast in production.

Library of Congress is checked daily against the live service.

Daily averagePeak 1067ms
Aug 20Today
Fastest day
768ms
Slowest day
1067ms
14-day trend
Stable+2%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 8 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of Library of Congress, so you can see the experience inside your AI.

It does not authenticate your account with Library of Congress. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

Library of Congress Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_AjTjJo3aHNsbsGSqfRyZvlZJBZfDk0w19q4MaOwY/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — Library of Congress capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "library-of-congress-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_AjTjJo3aHNsbsGSqfRyZvlZJBZfDk0w19q4MaOwY/mcp"
    }
  }
}
  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Step-by-step instructions for each client are in the guide. How to connect

FAQ

Questions Library of Congress owners ask.

  • 01

    Can I search for items specifically in a format like 'maps' or 'audio'?

    Yes! Use the search_format capability and specify the format parameter (e.g., 'maps', 'photos', 'audio') along with your query to get targeted results.

  • 02

    How do I get the full OCR text of a digitized document?

    You can use the get_text_service capability. Provide the document segment path and set the full_text parameter to 1 to retrieve the complete OCR transcript.

  • 03

    Can I list items from a specific collection like the Abraham Lincoln papers?

    Yes. Use the get_collection_items capability with the collection slug (e.g., 'abraham-lincoln-papers') to see all items contained within that specific archive.

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