Atomic Mail is a Model Context Protocol (MCP) server: Programmable email inbox for AI agents — JMAP, PoW auth, stdio MCP server. Because it speaks the Model Context Protocol, AI assistants can use Atomic Mail as a set of callable tools instead of you copy-pasting between apps.
It runs locally: the npm package @atomicmail/mcp-modelcontextprotocol speaks MCP over stdio on your machine. The current release is v0.3.26, published under the MIT license, with source at Atomic-Mail/atomic-mail-agentic on GitHub, where it has earned 256 stars.
On mcp.site, Atomic Mail sits in the AI & Agents category. Any MCP client can use it — Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed among them — via the install snippets below. If you maintain Atomic Mail for Atomic-Mail, claim this listing to verify ownership, earn the Verified badge, and keep the details current.
▸npm package — @atomicmail/mcp-modelcontextprotocol · MCP over stdio
▸Open source — MIT license · Atomic-Mail/atomic-mail-agentic