pbx-mcp: An Open-Source MCP Server for Secure AI Control of Asterisk
ictinnovations · reddit · 2026-08-10
A developer has released pbx-mcp, an MCP server for open-source telephony systems Asterisk and FreeSWITCH. It allows AI models to read live system states (like active channels, caller IDs, and gateway registration statuses) to answer daily operational queries.
The project emphasizes a strong safety model:
- Read-Only by Default: Write tools like originate and hangup are never registered with the model unless explicitly enabled via PBXMCPALLOWWRITE=true.
- Injection Guards & Clamping: Uses allow lists for CLI commands, rejects shell metacharacters to prevent AMI header injection, and clamps output to 20k characters to protect the context window.
The tool can be deployed via npx or Docker and is MIT-licensed.
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