@atomicmail/mcp-modelcontextprotocol

Name: @atomicmail/mcp-modelcontextprotocol Review
Item: @atomicmail/mcp-modelcontextprotocol
Rating: 3.0
Author: Aaron Matthews

Connector Setup & Config Usable

Works inClaude Code Claude Cowork Claude Chat

Usable Scanned — metadata only

Enables AI agents to securely access email systems via standardized protocol, reducing custom integration work and providing cryptographic authentication wit…

Atomic Mail MCP server — local stdio proxy with PoW auth and JMAP, for AI agents. (modelcontextprotocol install channel)

Ask Claude to securely connect to your local mail server using proof-of-work authentication.
Generate JMAP protocol configurations to enable AI agents accessing email without exposing credentials.
Automate email server setup for Claude integrations with built-in security verification mechanisms.

269 starsMIT (commercial OK)Free

Usable rating — This tool is functional but has notable gaps. Review the evaluation notes below before deploying.

Why it matters

Enables AI agents to securely access email systems via standardized protocol, reducing custom integration work and providing cryptographic authentication without external infrastructure dependencies.

Best for

Engineering teams integrating AI agents with email workflows requiring local-first security and JMAP compatibility.

Works in

Claude Code Claude Cowork Claude Chat

Source

https://www.npmjs.com/package/@atomicmail/mcp-modelcontextpr...

By dom-dalty

How to Get It

Option 1: Claude Desktop AppOpen the Customize panel in the sidebar → browse connectors → search and add. Works in Claude Code, Claude Cowork, and Claude Chat.

Option 2: Paste into Claude CodeCopy the command below and paste it into a Claude Code conversation. Claude will run it for you.

Command

npx -y @atomicmail/mcp-modelcontextprotocol

Tip: Paste this into a Claude Code conversation. Verify command matches your Claude Code version.

Auto-generated from the tool's public listing — not hands-on verified. Cross-check against the source repo's README before running.

First thing to try

Once it’s connected, paste this into Claude:

Securely connect to my local mail server using proof-of-work authentication

CostFree

Trust Signals Auto-scanned

Stars269Contributors2Last updated2026-07-02LicenseMIT (OK for commercial use)Weekly downloads184Known CVEsNone foundSources: GitHub Advisory Database + OSV.dev · Scanned 2026-07-25 · scanner v1

Data & Access

Data processingPrompts sent to Anthropic API. Enterprise/Team plans exclude training.

Community Pulse New

No community discussions found yet. This doesn't mean the tool isn't good — it may be new or serve a niche use case.

Reviewer notes

Auto-scanned review. These are observations, not a security certification.

Scored from trust signals (evidence-eval-v1): 269 GitHub stars; 2 contributors; last commit 23d ago; license MIT.

Things to check

Scanned, not hands-on tested — this entry was auto-scanned from public metadata (GitHub metrics, license, security flags). No reviewer has run it, and no tool-specific limitations have been documented yet.

How to evaluate tools before deploying →

Data shown here comes from public APIs and automated scanning. Reviewer notes reflect one person's experience. This is not a security certification or legal recommendation. Always evaluate tools according to your own organization's policies.

Evaluation Scores

Evaluation

Ease of Use

3/5

Versatility

3/5

Reliability

3/5

Security

3/5

Overall score3.00 / 5.00 UsableEvaluatedJul 2026

Scored from trust signals (evidence-eval-v1): 269 GitHub stars; 2 contributors; last commit 23d ago; license MIT.

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