Signal
MCP

MCP token guide

Create, name, and revoke MCP tokens from settings. A token scopes an AI client to one workspace and can be revoked anytime.

Last updated June 14, 2026

An MCP token is how an AI client authenticates to Signal. You create it in Settings → MCP → Tokens, give it a name, and use it as the bearer token in your client's MCP configuration. Tokens are scoped to the workspace they're created in and can be renamed or revoked at any time.

Step by step

  1. 1
    Open Settings → MCP → Tokens

    You'll see existing tokens and a create control.

  2. 2
    Create and copy the token

    Name it for the client you'll use it with (e.g. "Claude Desktop"). Copy it now — it's shown once.

  3. 3
    Revoke when done

    Revoke a token to immediately cut off any client using it.

Common mistakes

  • !Sharing one token across many clients — create one per client so you can revoke precisely.