MCP Server - Assistable.ai Docs

The MCP server exposes every v3 API operation as a Model Context Protocol tool, so AI clients (Claude Desktop, Cursor, Claude Code, …) can manage assistants, contacts, calls, knowledge bases, and more on your behalf.

Add it to your MCP client

Most clients are configured with a JSON file. Point the command at npx so it always runs the latest published version:

{
  "mcpServers": {
    "assistableai": {
      "command": "npx",
      "args": ["-y", "@assistableai/mcp"],
      "env": {
        "ASSISTABLE_API_KEY": "ask_live_…",
        "ASSISTABLE_SUBACCOUNT_ID": "<subaccount-id>"
      }
    }
  }
}

Client	Config file
Claude Desktop	`claude_desktop_config.json`
Cursor	`.cursor/mcp.json`
Claude Code	`claude mcp add` / project `.mcp.json`

Environment

Variable	Required	Purpose
`ASSISTABLE_API_KEY`	yes	Bearer key (`ask_live_…`)
`ASSISTABLE_SUBACCOUNT_ID`	no	Default `X-Subaccount-Id` for every tool call
`ASSISTABLE_BASE_URL`	no	Override (default `https://api.assistable.ai`)

Auth is applied on the underlying HTTP client, so it reaches every tool call. The server communicates over stdio and registers one tool per operation (e.g. listAssistants, createContact, createCall).

Run it directly to sanity-check your env: ASSISTABLE_API_KEY=ask_live_… npx -y @assistableai/mcp. It exits with an error if the key is missing.