OpenMail MCP MCP server

OpenMail MCP provides Gmail-like capabilities for AI agents, enabling them to create inboxes, read and reply to emails, send messages, and manage domains. It supports OAuth sign-in for secure access and offers various endpoints including read-only modes and inbox-scoped keys to ensure security and granular control over agent permissions.

Endpoint and access

OAuth sign-in: the first time you connect, your client opens the vendor's own authorization prompt in a browser.

OAuth sign-inEndpoint checked 2026-10-06Operated by OpenMail

MCP endpoint (Streamable HTTP)

https://mcp.openmail.sh/mcp

Vendor documentation

What you can do with it

Set up an inbox for this agent and show me the address.
Reply to unread mail that needs an answer.
Add and verify mail.example.com.

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http openmail-mcp https://mcp.openmail.sh/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add openmail-mcp --url https://mcp.openmail.sh/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable openmail-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "openmail-mcp": {
      "url": "https://mcp.openmail.sh/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.

Cline configuration

{
  "mcpServers": {
    "openmail-mcp": {
      "type": "streamableHttp",
      "url": "https://mcp.openmail.sh/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start openmail-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "openmail-mcp": {
      "type": "http",
      "url": "https://mcp.openmail.sh/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http openmail-mcp https://mcp.openmail.sh/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "openmail-mcp": {
      "url": "https://mcp.openmail.sh/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "openmail-mcp": {
      "serverUrl": "https://mcp.openmail.sh/mcp"
    }
  }
}

See all 1,687

Do you run OpenMail MCP?

Prove ownership with a DNS record, a well-known file, or your Official MCP Registry entry, and your edits publish immediately. Proofs are re-checked weekly; admins can still hide or remove a listing.

Claim this listing