DevInbox MCP MCP server

DevInbox provides an official MCP server that allows AI agents to programmatically create real email inboxes, wait for incoming verification emails, and extract structured data like OTPs or magic links. It supports sending emails and managing inboxes via tools like create_inbox, wait_for_email, and send_email, enabling agents to complete web sign-ups and authentication flows autonomously without human intervention.

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 2026-10-05Operated by DevInbox

MCP endpoint (Streamable HTTP)

https://mcp.devinbox.io

Vendor documentation

What you can do with it

Create isolated email inboxes for AI agents
Wait for and extract OTP verification codes
Send emails from agent-controlled addresses
Automate web service sign-up flows

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 devinbox-mcp https://mcp.devinbox.io

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 devinbox-mcp --url https://mcp.devinbox.io

Cursor

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

Cursor configuration

{
  "mcpServers": {
    "devinbox-mcp": {
      "url": "https://mcp.devinbox.io"
    }
  }
}

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": {
    "devinbox-mcp": {
      "type": "streamableHttp",
      "url": "https://mcp.devinbox.io",
      "disabled": false
    }
  }
}

VS Code

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

VS Code configuration

{
  "servers": {
    "devinbox-mcp": {
      "type": "http",
      "url": "https://mcp.devinbox.io"
    }
  }
}

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 devinbox-mcp https://mcp.devinbox.io

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": {
    "devinbox-mcp": {
      "url": "https://mcp.devinbox.io"
    }
  }
}

Windsurf

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

Windsurf configuration

{
  "mcpServers": {
    "devinbox-mcp": {
      "serverUrl": "https://mcp.devinbox.io"
    }
  }
}

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