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ProtonMail MCP
38
Stack Score
Editorial pick✓ Verified workingMCP server
ProtonMail MCP logo

ProtonMail MCP

ProtonMail encrypted email ops.

Try ProtonMail MCP

Best for

Best for privacy-conscious individuals + teams on Proton.

At a glance

Pricing
open-source
Setup time
30 minutes
Learning curve
steep
Last verified
5/26/2026

What we love

  • ✓E2E encrypted
  • ✓Privacy + Swiss jurisdiction
  • ✓Open-source bridge

Where it falls short

  • −Bridge setup required
  • −API limited vs Gmail
  • −Proton subscription required for advanced

Pricing

✓ Pricing verified Jun 14, 2026

1 tier

Open-source

$0

perpetual

  • ✓MIT

Overview

MCP server for Proton Mail — encrypted email via Proton Mail Bridge or API. End-to-end encrypted email exposed to Claude.

Key features

  • ●Encrypted email send/read
  • ●Proton Mail Bridge
  • ●Custom domain
  • ●Calendar (paid)
  • ●Privacy-first

Best use cases

Encrypted email automation

Let Claude send + read encrypted email via Proton Bridge.

Privacy-sensitive workflows

Run email automations for privacy-sensitive workflows.

Integrations

Proton Mail Bridge
Proton Calendar

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