How do I check if an ISBN is valid?

You can use the `validate_isbn` tool by providing the raw ISBN string, including hyphens or spaces.

Can this tool identify the country of origin for a book?

Yes, the `identify_registration_group` tool extracts the registration group prefix to determine the country or language group.

Does it support ISBN-10 with the 'X' check digit?

Yes, the validation logic correctly handles the 'X' character used in ISBN-10 checksums.

ISBN-10 and ISBN-13 Validator MCP Connector for Claude

A+

Verify the mathematical integrity of ISBN-10 and ISBN-13 identifiers and identify registration groups.

3 tools Official Updated Oct 1, 2026 Official Vinkius Partner

More Details Connect to Claude

This MCP server provides precise mathematical validation for ISBN-10 and ISBN-13 identifiers. It can verify if a specific ISBN string is correct using validate_isbn, extract detailed formatting information with get_isbn_metadata, or identify the associated country or language group using identify_registration_group.

isbnvalidationbooksidentifiersmetadata

Connect to Claude

Subscribe on Vinkius, then add this connector to Claude.ai or Claude Code.

① Claude.ai (web app)

Go to Settings → Connectors → Add custom connector
Paste the MCP endpoint URL below

https://edge.vinkius.com/vk_preview_jg71A3SaqnJ4uarz5Q182blC1Ch7vPFOlBSJGyUt/mcp

② Claude Code (terminal)

claude mcp add --transport http isbn-10-and-isbn-13-validator https://edge.vinkius.com/vk_preview_jg71A3SaqnJ4uarz5Q182blC1Ch7vPFOlBSJGyUt/mcp

③ Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "isbn-10-and-isbn-13-validator": {
      "url": "https://edge.vinkius.com/vk_preview_jg71A3SaqnJ4uarz5Q182blC1Ch7vPFOlBSJGyUt/mcp"
    }
  }
}

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