LocalFree server, account needed

Beelzebub MCP server

mariocandela/beelzebub

Honeypot framework for building decoy MCP tools that an agent would never use in normal work, to detect prompt injection and malicious agent behavior.

Install Beelzebub in Claude Code

This server doesn't publish a package to a registry, so follow the install steps in its README. Once it runs, register it with Claude Code:

Claude Code
claude mcp add beelzebub -- <command to start the server>

Frequently asked questions

What does the Beelzebub MCP server do?

Honeypot framework for building decoy MCP tools that an agent would never use in normal work, to detect prompt injection and malicious agent behavior.

Is the Beelzebub MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does Beelzebub run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add Beelzebub to Claude Code?

Follow the install steps in the project's README at https://github.com/mariocandela/beelzebub, then register it with "claude mcp add".

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