agentic-inbox
A self-hosted email client with an AI agent, running entirely on Cloudflare Workers
Agentic Inbox is a self-hosted email client with MCP server capabilities, running entirely on Cloudflare Workers infrastructure. It enables developers to send, receive, and manage emails through a modern web interface while exposing email operations via MCP endpoints for AI assistants like Claude Code and Cursor. Built with Cloudflare Email Routing, Durable Objects, R2 storage, and Workers AI, it includes an embedded AI agent that can read messages, search conversations, and draft replies using the Cloudflare Agents SDK.
Key Features
Use Cases
- 01Connecting Claude Code or Cursor to manage email operations programmatically via MCP
- 02Self-hosting a secure email client on your own Cloudflare infrastructure
- 03Automating email triage and response drafting with AI assistance
- 04Building custom email workflows that integrate with AI development tools
- 05Managing multiple isolated mailboxes with per-mailbox AI configuration
- 06Developing email-aware AI agents that can read, search, and compose messages
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agentic-inbox — FAQ
What is agentic-inbox MCP server?+
Agentic Inbox is a self-hosted email client that runs on Cloudflare Workers and exposes an MCP server endpoint at /mcp. This allows AI tools like Claude Code and Cursor to perform email operations on any mailbox by passing a mailboxId parameter.
How do I install agentic-inbox MCP server?+
Deploy the Worker using the Deploy to Cloudflare button, then configure Cloudflare Access, set up Email Routing with a catch-all rule, enable Email Service for sending, and create mailboxes. The MCP endpoint becomes available at /mcp once deployed and Access is configured.
Which AI clients work with agentic-inbox?+
The README mentions Claude Code and Cursor as compatible external AI tools that can connect to the MCP server endpoint. Any MCP-compatible client can access mailbox operations through the /mcp endpoint.
What are the prerequisites for agentic-inbox?+
You need a Cloudflare account with a custom domain, Email Routing enabled for receiving mail, Email Service enabled for sending, Workers AI enabled for the agent, and Cloudflare Access configured for production deployments. All users who pass the Access policy can access all mailboxes.
Is agentic-inbox free to use?+
The software is open source under Apache 2.0 license, but it runs on Cloudflare Workers, R2, Durable Objects, and Workers AI which have their own pricing. Usage costs depend on your Cloudflare plan and resource consumption.
Does agentic-inbox require API keys?+
You must configure POLICY_AUD and TEAM_DOMAIN secrets from Cloudflare Access for production authentication. The domain must be set in wrangler.jsonc, and Email Routing and Email Service must be enabled in your Cloudflare dashboard.
How do I install agentic-inbox?+
Open the source repository on GitHub and follow its README. agentic-inbox is a mcp server — MCP Agents Market links you directly to the official repo.
Is agentic-inbox free?+
agentic-inbox is an open-source project hosted on GitHub. Check the repository for its license and any usage requirements.