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Openlibrary search

An MCP tool from the Public Knowledge server, hosted on mcp.hjlabs.in.

Search books by title, author or subject (Open Library): title, authors, first publication year, edition count, ISBNs, subjects, cover and Open Library link.

Name on the gateway: knowledge__openlibrary_search · read-only.

Parameters

NameTypeDescription
query requiredstringFree text, e.g. "the pragmatic programmer".
authorstringAuthor name filter.
limitintegerResults (default 10, max 50).

How to call it

Through the Smart Gateway, any client can run it by name with call_tool, or let the gateway find it with search_tools:

call_tool arguments
{
  "name": "knowledge__openlibrary_search",
  "arguments": {
    "query": "…"
  }
}

Or connect the Public Knowledge server directly, which lists 47 tools including this one:

Run in your terminal
claude mcp add --transport http hj-knowledge https://mcp.hjlabs.in/mcp/knowledge \
  --header "Authorization: Bearer YOUR_API_KEY"

Try asking

Use the openlibrary search tool with query set to ….

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