Check Digit Validator
Validates IBAN/ISBN/EAN/Luhn checksums and finds the one wrong digit
Power your agent
Add this server
The publisher's own URL. Not a PlugMCP endpoint.
Server URL
https://check-digit.gumballtools.com/api/mcp
Provider
Claude Code
claude mcp add --transport http com.gumballtools-check-digit https://check-digit.gumballtools.com/api/mcp
Run in a terminal.
Claude Desktop
{
"mcpServers": {
"com.gumballtools-check-digit": {
"command": "npx",
"args": [
"-y",
"mcp-remote",
"https://check-digit.gumballtools.com/api/mcp"
]
}
}
}claude_desktop_config.json
Remote URL or a command on your machine? How the two installs differ
Run on PlugMCP
Host a copy with our keys and logs.
A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.
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Validates IBAN/ISBN/EAN/Luhn checksums and finds the one wrong digit
README is not crawled yet. Open the repository
- How do I install Check Digit Validator?
- Copy the http config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.
- Does Check Digit Validator need an API key?
- No required environment variable is listed on this record.
- What transport does Check Digit Validator use?
- Check Digit Validator is reached over HTTP.
- When was Check Digit Validator last checked?
- Last checked 2026-10-16. Validates IBAN/ISBN/EAN/Luhn checksums and finds the one wrong digit
No tool list yet. Remote servers get one after the first health check.