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Proton Mail MCP server

by Alexendros·io.github.Alexendros/proton-mail-mcp·v0.1.2
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Proton Mail MCP via Bridge (IMAP/SMTP) · 13 tools · dual transport stdio + HTTP.

B70/100grade B
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Safety scan
B70/100

full report

Adoption
New

0 stars

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If you have run it, two minutes of your experience saves the next person an afternoon.

Proton Mail tools

No tool declarations could be read from the package source. They show once the server is installed.

Public scan report

scanner v0.1.9 · 2026-09-27 · same rubric, same numbers if you re-run it

1 high
  • –Code scanpackage could not be scannedn/a
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitystatic API keys via environment variables6/15
  • Maintenancelast push 2 days ago15/15
  • Maintainer identityregistry namespace matches repository owner7/10

Findings (1)

  • highPackage @alexendros/proton-mail-mcp not found on npmcode.package-missing
Overall 70/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Proton Mail compares

Against every graded Email MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
70/100
higher than 40% of 916 Email servers

Install Proton Mail in Claude Code, Cursor or VS Code

Runs npx -y @alexendros/proton-mail-mcp on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add proton-mail-mcp -- npx -y @alexendros/proton-mail-mcp
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What the publisher says

From the Proton Mail repository's README, as published. We do not edit it. Read it on GitHub

Proton Suite Agent

Propósito de este documento

  • Objetivos: Orientar el pulso del repo, el quickstart y el enrutado a los documentos canónicos.
  • Estructura: Ficha → pulso → mapa de lectura → instalación, tools, agente, calidad.
  • Contenido a integrar según contexto: Stack TypeScript/MCP, frontera Bridge, dry-run por defecto, Makefile fachada.

Abrir cuando: Orientación, pulso y enrutado. Aprobado: 15 de agosto de 2026 Audiencia: Agente, Dirección, Usuarios Autoridad: Lectura Clase: Obligatorio Días para revisión: 14 En repo: Sí Estado: Vigente Orden: 1 Propósito: Punto de entrada: pulso, quickstart y qué leer después. Reforma: Operativa Responsable: Alexendros Revisión: 29 de agosto de 2026 Rol: Entrada Ruta: ./README.md

📌

Propósito

Punto de entrada de lectura. Te dice el pulso, cómo arrancar y qué documento abrir después. Lo no negociable vive en CONSTITUTION.md.

Estado en una mirada

Pulso: 24 de septiembre de 2026 · v1.4.0

Fase activa: Fase 1 (Pass / agente / DX) checklist cerrada · siguiente: Fase 2 (Calendar, bloqueada). Ver ROADMAP.md.

Métricas: 47 tools por defecto (50 con Calendar experimental) · 965 tests · cobertura ~98% (gate 95%).

MCP server multi-producto para Proton Suite: Mail, Pass, Drive y Calendar (stub). Un agente opera el buzón, gestiona contraseñas y sincroniza archivos — local, sin exfiltrar contenido E2E.

Qué leer a continuación

Primera sesión: este README → AGENTS.md §§ TL;DR + ficha → fase activa en ROADMAP.md → ADR/ancla citada.

Quickstart

Prerrequisitos: Node ≥ 22, pnpm, Proton Mail Bridge en local, pass o gopass + gpg para contraseñas.

1. Instalar y compilar

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Proton Mail: common questions

Is Proton Mail MCP server safe?
Mostly: it is graded B (70/100). Read the Proton Mail safety report
How do I install Proton Mail?
It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does Proton Mail need an API key?
Yes. The registry entry asks for PROTON_PASSWORD.
Is Proton Mail maintained?
The last commit was 40 days ago (2026-09-25). The latest release is v0.1.2.
What can I use instead of Proton Mail?
Servers from other publishers that do the same job: Email MCP server, Proton Mail (unofficial) MCP server and owlpost MCP server.

Alternatives to Proton Mail

Same job from other publishers: the closest match first, then the best rated.

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    A
  • Mailoo - Email MCP Server
    Email MCP server for AI agents: IMAP/SMTP, Gmail, Outlook, calendar, ManageSieve, AI triage, OAuth2.
    A
  • Atomic Mail
    Programmable email inbox for AI agents — JMAP, PoW auth, stdio MCP server.
    A