Signal
MCP

What is Signal MCP

Signal exposes an MCP bridge so an AI client like Claude can read and prepare work in your workspace — always behind the same approval gate.

Last updated June 14, 2026

MCP (Model Context Protocol) lets an AI client like Claude connect to Signal as a tool. Through the bridge, the assistant can read your workspace and prepare items — but it cannot bypass approval. Anything that would publish still passes through the human gate.

The bridge authenticates with a scoped bearer token you create, not your login session, and every tool call is scoped to that token's workspace and audited.

Principles

  • ·Token-scoped — a bearer token bound to one workspace, not your cookie session.
  • ·Audited — every tool call is recorded.
  • ·Approval-preserving — the assistant cannot publish without the same approval as the UI.