Multi-Account Gmail MCP Server

io.github.cunicopia-dev/multi-account-gmail-mcp

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What is the Multi-Account Gmail MCP server?

Multi-account Gmail MCP server — read, search, draft, and label across every inbox.

How to install Multi-Account Gmail

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

Environment / auth

GMAIL_MCP_CLIENT_SECRET
Path to the Google OAuth "Desktop app" client-secret JSON. Defaults to ~/.gmail-mcp/client_secret.json.
GMAIL_MCP_DB
Path to the SQLite token store holding per-account refresh tokens. Defaults to ~/.gmail-mcp/tokens.db.
GMAIL_MCP_OAUTH_PORT
Localhost port for the OAuth redirect during account authorization. Defaults to 8765.

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "multi-account-gmail-mcp": {
      "command": "uvx",
      "args": [
        "multi-account-gmail-mcp"
      ],
      "env": {
        "GMAIL_MCP_CLIENT_SECRET": "<YOUR_GMAIL_MCP_CLIENT_SECRET>",
        "GMAIL_MCP_DB": "<YOUR_GMAIL_MCP_DB>",
        "GMAIL_MCP_OAUTH_PORT": "<YOUR_GMAIL_MCP_OAUTH_PORT>"
      }
    }
  }
}