ISBN Validation

live BooksUtility

Validate ISBN-10 and ISBN-13 check digits and convert between the two formats (keyless, offline). Number/checksum only, no book lookup.

2 tools
0ms auth
free tier 50 calls/day

Tools

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.

No parameters required.

▶ Try it
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.

No parameters required.

▶ Try it

Test with curl

The gateway speaks JSON-RPC 2.0 over HTTP POST. You can test any pack directly from the terminal.

List available tools
bash 
curl -X POST https://gateway.pipeworx.io/isbn/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'
Call a tool
bash 
curl -X POST https://gateway.pipeworx.io/isbn/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"validate_isbn","arguments":{}}}'

Use with the SDK

Install @pipeworx/sdk to call tools from any TypeScript/Node project.

TypeScript 
import { Pipeworx } from '@pipeworx/sdk';
const px = new Pipeworx();
const result = await px.call("validate_isbn", {});
ask_pipeworx 
// Or ask in plain English:
const answer = await px.ask("validate isbn-10 and isbn-13 check digits and convert between the two formats (keyless, offline)");