On-Demand-Books MCP Server

by gmlewis Your server? Claim it

answering

On-Demand-Books is answering right now. Last checked 1 min ago. It exposes 3 tools. Last commit 8 Jul 2026.

Find personalized puzzle books by first name from a 100,000+ title Shopify catalog.

Uptime history 48 days of history · worst day 86%

48 days agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

441 ms

Response time

average over 24h

Stars

last commit 8 Jul 2026

Nothing serious here today

Today is the operative word: we check On-Demand-Books every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 1 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add on-demand-books --transport http https://on-demand-books-dq2yvpdh.fermyon.app/

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "on-demand-books": {
      "url": "https://on-demand-books-dq2yvpdh.fermyon.app/"
    }
  }
}

~/.codex/config.toml

[mcp_servers.on-demand-books]
url = "https://on-demand-books-dq2yvpdh.fermyon.app/"

.cursor/mcp.json

{
  "mcpServers": {
    "on-demand-books": {
      "url": "https://on-demand-books-dq2yvpdh.fermyon.app/"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "on-demand-books": {
      "url": "https://on-demand-books-dq2yvpdh.fermyon.app/"
    }
  }
}

Available tools 3

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

book

get_book

Re-resolve a single book's purchase URL, cover image, and ISBN from its Shopify product handle. Use this to refresh or re-reference a book across turns without re-running the full name search.

books

search_books

Search for personalized puzzle books by first name. Returns matching books with direct Shopify purchase links, cover images, and ISBNs. A typical exact match returns 9 books across 3 puzzle types (mazes, name-sudokus, word searches) and 3 difficulty levels. When no exact match exists, returns similarly-named books. Use this whenever a user is shopping for a personalized gift and knows the recipient's first name.

suggest

suggest_names

Suggest first names for which personalized puzzle books are likely available. Use this when a user is unsure of a spelling, wants gift-recipient ideas, or only has part of a name. Returns popular available names, optionally filtered by a case-insensitive prefix. To confirm a specific name has matching books, follow up with `search_books`.

Endpoints

URL	Transport	State	Latency	Checked
https://on-demand-books-dq2yvpdh.fermyon.app/	streamable-http	answering	524 ms	1 min ago

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On-Demand-Books — questions

Answers built from our own checks of this server.

What can On-Demand-Books do?

It exposes 3 tools, read directly from the server on our last check. Among them: get_book, search_books, suggest_names. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is On-Demand-Books working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 441 ms. The bar chart above shows every period we have measured.

How do I connect On-Demand-Books?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does On-Demand-Books need an API key?

No. On-Demand-Books completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 3 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is On-Demand-Books?

It answers our handshake in 441 ms on average, which is faster than 34% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is On-Demand-Books open source?

Yes — it is published under the Apache-2.0 licence, written in Rust and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.