Atomic Mail MCP Server

Programmable email inbox for AI agents — JMAP, PoW auth, stdio MCP server.

Local + remotestreamable-httpstdio

What is the Atomic Mail MCP Server?

Atomic Mail is an MCP integration. Programmable email inbox for AI agents — JMAP, PoW auth, stdio MCP server.

Hosted connection

The registry lists a streamable-http connection at https://mcp.atomicmail.ai/mcp.

Packages and local setup

The published npm package is @atomicmail/mcp-modelcontextprotocol, version 0.3.27. Its declared MCP transport is stdio.

The package declares ATOMIC_MAIL_CREDENTIALS_DIR: Override default credential directory (~/.atomicmail/); ATOMIC_MAIL_API_KEY: Existing API key — skips PoW registration; ATOMIC_MAIL_AUTH_URL: Override auth service base URL; ATOMIC_MAIL_API_URL: Override JMAP API base URL; ATOMIC_MAIL_INBOX_DOMAIN: Default inbox domain when inboxId has no @ (default: atomicmail.ai).

Before connecting

Check the maintainer’s instructions for account access, authentication and the supported client configuration. Once connected, inspect the tools your client receives and try a small task that matches the server’s stated purpose. The registry description does not include a verified, complete tool list.

Project and source

View the publisher’s registry entry · Project repository · Project website. This profile uses version 0.3.27 from the registry. Registration identifies the publisher namespace; it does not establish that this is a first-party integration for every service it connects.

Browse related communication MCP servers for tools that cover the same kind of work.

Configuration

VariableDescriptionRequired
ATOMIC_MAIL_CREDENTIALS_DIROverride default credential directory (~/.atomicmail/)Optional
ATOMIC_MAIL_API_KEYExisting API key — skips PoW registrationOptional
ATOMIC_MAIL_AUTH_URLOverride auth service base URLOptional
ATOMIC_MAIL_API_URLOverride JMAP API base URLOptional
ATOMIC_MAIL_INBOX_DOMAINDefault inbox domain when inboxId has no @ (default: atomicmail.ai)Optional