Catalo.ai - Book Discovery

Find Books You'll Actually Finish You know what you like in a book,\ You just haven't had a good way to search for it.\ Until now...

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What it can do

  • Explore Books: Search and filter fiction books. Filters are far reaching, including things like genre, mood, theme, pacing and more. Call list_filters first to discover available filter identifiers an
  • Get Book Details: Get full details for up to 20 books (as returned by explore_books). When showing showing a book to the user, include a link to the website for the book, eg. [View on Catalo.ai](https
  • List Bookmarked Books: List the current user's bookmarked books filtered by bookmark state. Use this tool when the user asks about their reading list, books they want to read, books they have read, or

What data it sees

Do you need an account

No: the server works without sign-in

Find Books You'll Actually Finish

You know what you like in a book,
You just haven't had a good way to search for it.
Until now...

Catalo.ai is an AI-curated book catalog built for readers who are tired of vague recommendations. Search by mood, theme, pacing, genre, and more — without hallucinated titles or the same 10 books everyone already knows.

What you can do here that you can't do anywhere else

  • Search by vibe, not just genre — filter by mood, theme, pacing, writing style, and atmosphere in combination. Ask for "slow-burn, atmospheric, cold setting, not action-heavy" and get real results.
  • Find lesser-known titles — the catalog is curated to surface books beyond the usual bestseller lists and algorithmic "if you liked X" suggestions.
  • No hallucinated titles — general-purpose LLMs frequently invent books that don't exist. Every result in Catalo is a real book from a real, curated catalog.
  • Natural language discovery inside your AI client — find books mid-conversation without switching apps or tabs.
  • A reading list your AI can reason over — bookmark books with personal notes, then ask your AI to analyze your habits across what you've finished, dropped, or want to read next.
  • Explore the search space itself — ask what filters exist and what values are valid; the catalog's own structure is queryable.

Suggested Prompts

Discovery

  • "Find me a slow-burn literary thriller set in a cold, remote location — something atmospheric, not action-heavy."
  • "I want a fantasy novel that isn't epic in scale — more intimate, character-driven, maybe bittersweet."
  • "Recommend some lesser-known sci-fi from the 70s or 80s with a philosophical bent."
  • "I loved the vibe of Piranesi — find me something with that same dreamlike, uncanny feeling."

Using filters

  • "What moods and themes can I filter books by?"
  • "Show me all the pacing options available, then find me something fast-paced and tense."

Bookmarks

  • "Show me all the books I've bookmarked but haven't started yet."
  • "Bookmark that last book and add a note: recommended by my sister."

Statistics

  • "Analyze the books I've read, want to read, and the books I've dropped, then give me insights into my reading habits."

Links

How to connect

How to connect Catalo.ai - Book Discovery to Claude

The server address to paste into Claude settings:

https://catalo-ai.run.tools

  1. Open Claude (claude.ai or the desktop app).
  2. Go to Settings → Connectors.
  3. Click Add custom connector.
  4. Paste the server address copied below into Remote MCP server URL and click Add.
  5. In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect Catalo.ai - Book Discovery to ChatGPT

The server address to paste into ChatGPT settings:

https://catalo-ai.run.tools

  1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
  2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
  3. Open Settings → Connectors and click Create.
  4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
  5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
  6. In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect Catalo.ai - Book Discovery to Cursor

The server address to paste into Cursor settings:

https://catalo-ai.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

  1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
  2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
  3. Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (5)

Raw names from tools/list. Only developers need these.

explore_booksSearch and filter fiction books. Filters are far reaching, including things like genre, mood, theme, pacing and more. Call list_filters first to discover available filter identifiers and their valid values. Returns a list of books matching the criteria. Always call list_filters() before calling explore_books(). %!(EXTRA string=https://catalo.ai/details/:id)
get_book_detailsGet full details for up to 20 books (as returned by explore_books). When showing showing a book to the user, include a link to the website for the book, eg. [View on Catalo.ai](https://catalo.ai/details/:id/details/{book_id}) Always show what readers liked (for_readers) and disliked (against_readers), mood and themes. Include anything else that might be relevant to the users query.
list_bookmarked_booksList the current user's bookmarked books filtered by bookmark state. Use this tool when the user asks about their reading list, books they want to read, books they have read, or books they dropped.
list_filtersList all available book filter identifiers and their valid values for use with the filters argument of explore_books.
save_bookmarkSave or update a bookmark for a book. Optionally include a personal note (max 140 characters).