Cadence MCP Server

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

claude mcp add cadence -- npx -y @cadencercs/mcp

{
  "mcpServers": {
    "cadence": {
      "args": [
        "-y",
        "@cadencercs/mcp"
      ],
      "command": "npx"
    }
  }
}

[mcp_servers.cadence]
command = "npx"
args = ["-y", "@cadencercs/mcp"]

{
  "mcpServers": {
    "cadence": {
      "args": [
        "-y",
        "@cadencercs/mcp"
      ],
      "command": "npx"
    }
  }
}

{
  "mcpServers": {
    "cadence": {
      "args": [
        "-y",
        "@cadencercs/mcp"
      ],
      "command": "npx"
    }
  }
}

This one needs environment variables set before it will start: CADENCE_API_KEY (Your Cadence API key. A sandbox key (sk_sandbox_…) simulates delivery end to end and reaches no handset; a live key sends real messages. Get one free at https://cadencercs.com/app.html — no card, no compliance wait.), CADENCE_ALLOW_IRREVERSIBLE (Set to 1 to expose the three one-way-door tools: sync_google, request_verification and request_launch. They create an agent at Google that can never be deleted, and freeze the launch questionnaire. Left unset they are absent from tools/list entirely, so no model in this configuration can reach them.), CADENCE_API_URL (Override the API host. Defaults to https://api.cadencercs.com.). The author declared them in the registry entry; get the values from the project itself.