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Atomic Mail

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

Atomic-Mailatomic-mail/mcp★ 266Updated Sep 18, 2026

server.json

{
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "name": "io.github.Atomic-Mail/mcp",
  "description": "Programmable email inbox for AI agents — JMAP, PoW auth, stdio MCP server.",
  "title": "Atomic Mail",
  "repository": {
    "url": "https://github.com/Atomic-Mail/atomic-mail-agentic",
    "source": "github"
  },
  "version": "0.3.27",
  "websiteUrl": "https://atomicmail.ai",
  "packages": [
    {
      "registryType": "npm",
      "identifier": "@atomicmail/mcp-modelcontextprotocol",
      "version": "0.3.27",
      "transport": {
        "type": "stdio"
      },
      "environmentVariables": [
        {
          "description": "Override default credential directory (~/.atomicmail/)",
          "name": "ATOMIC_MAIL_CREDENTIALS_DIR"
        },
        {
          "description": "Existing API key — skips PoW registration",
          "isSecret": true,
          "name": "ATOMIC_MAIL_API_KEY"
        },
        {
          "description": "Override auth service base URL",
          "name": "ATOMIC_MAIL_AUTH_URL"
        },
        {
          "description": "Override JMAP API base URL",
          "name": "ATOMIC_MAIL_API_URL"
        },
        {
          "description": "Default inbox domain when inboxId has no @ (default: atomicmail.ai)",
          "name": "ATOMIC_MAIL_INBOX_DOMAIN"
        }
      ]
    }
  ],
  "remotes": [
    {
      "type": "streamable-http",
      "url": "https://mcp.atomicmail.ai/mcp"
    }
  ]
}

Permissions

DeclaredDetected
Runs code—node
Installs—npm:@atomicmail/mcp-modelcontextprotocol@0.3.27
Runs install scripts—None
Networkmcp.atomicmail.aimcp.atomicmail.ai
Needs credentialsATOMIC_MAIL_API_KEYATOMIC_MAIL_API_KEY
Outside the workspace—None
Agent tools—None

Checks

Low risk · Nothing worth a warning was found.

Not reviewed by a person · Checked by rules; the model review is not switched on yet.

Versions

  1. #10.3.27latestOct 7, 2026