Library of Congress
search-tools:library-of-congress · www.loc.gov/apis/ ↗
Search the Library of Congress digital collections: books, maps, photos, newspapers and recordings.
About the Library of Congress API
Library of Congress API on Apizie: 1 endpoint (Search) returned as clean JSON through one API key. 1 endpoint is live now. Call it over REST at https://zieapi.vercel.app/v1/search-tools:library-of-congress/{endpoint} or from Claude, ChatGPT and Cursor through the Apizie MCP server. Free plan: 1,000 requests a month.
| Project key | search-tools:library-of-congress |
|---|---|
| Status | Live |
| Endpoints | 1 |
| Category | Search Tools |
| Source | www.loc.gov/apis/ |
| Base URL | https://zieapi.vercel.app/v1/search-tools:library-of-congress/{endpoint} |
| For AI tools | OpenAPI spec · Markdown (what is this?) |
Library of Congress API FAQ
How do I call the Library of Congress API?
Create a free Apizie key, then send GET https://zieapi.vercel.app/v1/search-tools:library-of-congress/search with the header x-api-key. Every endpoint returns { project, data, timestamp }.
Is the Library of Congress API free on Apizie?
Yes. The Free plan includes 1,000 requests a month at 100 requests a minute, no credit card.
Can AI agents use the Library of Congress API?
Yes. Add the Apizie MCP server (https://zieapi.vercel.app/mcp) to Claude, ChatGPT, Cursor or VS Code, then ask in plain language. The agent calls run_scraper with project key search-tools:library-of-congress.
What is the status of the Library of Congress API?
Live: works with just an Apizie key