Isbn
FreeNot checkedValidates and converts ISBN-10 and ISBN-13 numbers offline, checking check digits and supporting conversion between formats.
About
Validates and converts ISBN-10 and ISBN-13 numbers offline, checking check digits and supporting conversion between formats.
README
ISBN validation & conversion MCP.
Part of Pipeworx — an MCP gateway connecting AI agents to 1137+ live data sources.
Tools
| Tool | Description |
|---|---|
validate_isbn |
Validate an ISBN-10 or ISBN-13 (keyless, offline): detects the format and checks the check digit (ISBN-10 uses mod-11 with an "X" for 10). Hyphens/spaces ignored. Validates the number, not the book. |
convert_isbn |
Convert an ISBN between ISBN-10 and ISBN-13 (recomputing the check digit). ISBN-10 -> ISBN-13 prefixes "978"; ISBN-13 -> ISBN-10 works only for the 978 prefix. |
Quick Start
Add to your MCP client (Claude Desktop, Cursor, Windsurf, etc.):
{
"mcpServers": {
"isbn": {
"url": "https://gateway.pipeworx.io/isbn/mcp"
}
}
}
Or connect to the full Pipeworx gateway for access to all 1137+ data sources:
{
"mcpServers": {
"pipeworx": {
"url": "https://gateway.pipeworx.io/mcp"
}
}
}
Using with ask_pipeworx
Instead of calling tools directly, you can ask questions in plain English:
ask_pipeworx({ question: "your question about Isbn data" })
The gateway picks the right tool and fills the arguments automatically.
More
License
MIT
Installing Isbn
This server has no published package — it is built from source. Open the repository and follow its README.
▸ github.com/pipeworx-io/mcp-isbnFAQ
Is Isbn MCP free?
Yes, Isbn MCP is free — one-click install via Unyly at no cost.
Does Isbn need an API key?
No, Isbn runs without API keys or environment variables.
Is Isbn hosted or self-hosted?
A hosted option is available: Unyly runs the server in the cloud, no local setup required.
How do I install Isbn in Claude Desktop, Claude Code or Cursor?
Open Isbn on unyly.org, pick your client tab (Claude Desktop, Claude Code, Cursor) and press Install — the config is generated automatically, no JSON editing.
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