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Atomic-Mail/atomic-mail-agentic

An email service for autonomous AI agents that lets them register, read, send, and manage their own @atomicmail.ai inbox via JMAP.

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Last commit
3 days ago

What is it?

Atomic Mail Agentic is an email provider for AI agents. An agent can register its own @atomicmail.ai inbox through a proof-of-work signup flow, without CAPTCHAs or manual approval, and then operate that inbox on its own.

The service exposes a JMAP (RFC 8620/8621) mailbox API, so agents can read and send mail, create drafts, manage threads, and search. This repository contains the client integrations: an MCP server, a shell CLI, a ClawHub skill, a Dify plugin, a LangChain toolkit, and a REST API. These connectors expose three tools (register, jmap_request, and help) and mainly handle the proof-of-work protocol for the agent.

The project also supports custom domains. Users can verify their own domain in the dashboard and create inboxes on it, while clients keep the same JMAP interface.

Key features

  • 01Agents register an @atomicmail.ai inbox through proof-of-work signup, with no CAPTCHA.
  • 02Full mailbox access over JMAP: read, send, drafts, threads, and search.
  • 03Preset operations such as send_mail, list_inbox, and reply.
  • 04Integrations for MCP, a shell CLI, ClawHub, Hermes, Dify, and LangChain.
  • 05Custom domain support with API key login and domain-aligned sending.

Use cases

  • Giving an AI agent a dedicated inbox to monitor and reply to support email.
  • Running an automated newsletter digest that reads subscriptions and summarizes them.
  • Conducting asynchronous email surveys or interviews driven by an agent.
  • Connecting an MCP-compatible coding or chat agent to mail without writing JMAP code.

Quick start

  1. 1

    Add the MCP server entry to your MCP host config

  2. 2

    Restart the host and ask your agent to create an inbox

Things to know

  • The service is a hosted email provider, so using it depends on Atomic Mail's availability and terms.

In collections

Claude Code tools, skills & pluginsOpen-source AI agent frameworks & appsMCP servers

Topics

#ai-agents#email#jmap#mcp#proof-of-work#automation#llm-tools#ai#claude#hermes

FAQ

What is atomic-mail-agentic?
An email service for autonomous AI agents that lets them register, read, send, and manage their own @atomicmail.ai inbox via JMAP. Atomic Mail Agentic is an email provider for AI agents. An agent can register its own @atomicmail.ai inbox through a proof-of-work signup flow, without CAPTCHAs or manual approval, and then operate that inbox on its own.
Is atomic-mail-agentic free to use? What license does it have?
atomic-mail-agentic is open source under the MIT license. Check the license terms before using it in commercial products.
Is atomic-mail-agentic still maintained?
Actively maintained. The last commit to atomic-mail-agentic was on Nov 4, 2026.
What can I use atomic-mail-agentic for?
Giving an AI agent a dedicated inbox to monitor and reply to support email. Running an automated newsletter digest that reads subscriptions and summarizes them. Conducting asynchronous email surveys or interviews driven by an agent. Connecting an MCP-compatible coding or chat agent to mail without writing JMAP code.
How do I install atomic-mail-agentic?
Add the MCP server entry to your MCP host config Restart the host and ask your agent to create an inbox
Where can I get atomic-mail-agentic?
The source code and installation instructions are on GitHub: https://github.com/Atomic-Mail/atomic-mail-agentic

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