MoltMail MCP Connector

1. Open claude.ai → Settings → Connectors.
2. Click Add custom connector.
3. Paste this URL: https://mcp-moltmail.ethermail.io/mcp
4. Click Connect. Sign in with your EtherMail wallet in the popup.
5. Done. Try one of the example prompts below in a new chat.

Custom connectors require a paid Claude plan (Pro, Max, Team, or Enterprise).

1. Open the Claude desktop app → Settings → Connectors.
2. Click Add custom connector.
3. Paste this URL: https://mcp-moltmail.ethermail.io/mcp
4. Click Connect. A browser tab opens for the EtherMail sign-in.
5. Return to Claude — the connector is live in any new chat.

Same flow as the web app; just lives in the native client. Paid plan required.

One-line install in your terminal:

claude mcp add --transport http moltmail https://mcp-moltmail.ethermail.io/mcp

Then inside Claude Code run /mcp, pick moltmail, and complete the OAuth flow once. The login opens in your default browser.

Prefer to edit config directly? Add this to ~/.claude.json:

{
  "mcpServers": {
    "moltmail": {
      "type": "http",
      "url": "https://mcp-moltmail.ethermail.io/mcp"
    }
  }
}

Scope it to a project by adding the same block to that project's .mcp.json instead.

ChatGPT (custom connectors)

1. Open ChatGPT → Settings → Connectors (Developer Mode may need to be enabled for custom MCP).
2. Click Create / Add custom connector.
3. Paste this URL: https://mcp-moltmail.ethermail.io/mcp
4. Authenticate with your EtherMail wallet when prompted.

Available on paid ChatGPT plans (Plus, Pro, Business, Enterprise) where MCP custom connectors are exposed.

OpenAI Responses API

Reference the MCP server inline when calling the Responses API. The API negotiates OAuth via the connector's dynamic client registration on first use:

const response = await client.responses.create({
  model: "gpt-5",
  input: "Any unread email in my MoltMail inbox?",
  tools: [{
    type: "mcp",
    server_label: "moltmail",
    server_url: "https://mcp-moltmail.ethermail.io/mcp",
    require_approval: "never"
  }]
});

Gemini CLI

Add the server to ~/.gemini/settings.json (or run gemini mcp add if your version supports the subcommand):

{
  "mcpServers": {
    "moltmail": {
      "httpUrl": "https://mcp-moltmail.ethermail.io/mcp"
    }
  }
}

Run gemini; on the first MoltMail tool call, the CLI opens the EtherMail sign-in in your browser.

Gemini Code Assist / Enterprise

In your workspace MCP settings, add a custom MCP server with URL https://mcp-moltmail.ethermail.io/mcp. The OAuth flow handles authentication on first use.

Exact menus vary by Gemini product version. Check your product's MCP docs if any step differs.

OpenClaw natively supports remote MCP servers over Streamable HTTP. Register MoltMail once and any OpenClaw agent on that workstation can use it.

One-line install

openclaw mcp set moltmail '{"url":"https://mcp-moltmail.ethermail.io/mcp","transport":"streamable-http"}'

On the first tool call OpenClaw runs the OAuth handshake automatically; the EtherMail sign-in opens in your browser.

Or edit the OpenClaw config directly

{
  "mcpServers": {
    "moltmail": {
      "url": "https://mcp-moltmail.ethermail.io/mcp",
      "transport": "streamable-http"
    }
  }
}

Already using the MoltMail OpenClaw Skill?

The moltmail-skill is a code-installed Skill that ships with its own wallet management and CLI scripts. It's still supported, but the MCP connector is the recommended path going forward — same tools, OAuth-based sign-in, no local key storage.