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Built for the Claude Code community with Claude Code by @mertduzgun

Independent project, not affiliated with Anthropic

Proton Mail Mcp

alexendros/proton-mail-mcp
authSTDIOregistry active
Summary

Connects Claude to Proton Mail via the local Bridge client, exposing 13 tools over IMAP and SMTP. You get read ops (list folders, search with filters, fetch full messages and attachments up to 50MB), writes (send with threading headers, move, flag, delete), and folder management. Runs dual transport: stdio for local CLI work, HTTP with bearer auth and rate limiting for remote clients like Routines. The crypto boundary stays at Bridge on your machine, so end-to-end encryption holds and nothing leaks plaintext to third parties. Ships with connection pooling, retry logic, and a full CI suite. Reach for this when you need Claude to manage a privacy-focused inbox without OAuth handoffs to SaaS providers.

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Proton Suite Agent

CI Quality CodeQL License: AGPL-3.0 Node

MCP server multi-producto para Proton Suite: Mail (Bridge IMAP/SMTP), Pass (pass-cli), Drive (CLI oficial) y Calendar (CalDAV stub). Un agente puede operar el buzón, gestionar contraseñas, sincronizar archivos y clasificar correo — todo sin salir de tu máquina.

ModoDescripción
stdio (default)Sin exponer nada a la red. Ideal para agentes IA locales.
streamable HTTPBearer auth + origin allowlist. Para despliegue con Docker.

Quickstart

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

1. Instalar y compilar

git clone https://github.com/Iniciativas-Alexendros/protonmail-agent.git
cd protonmail-agent
npm install && npm run build && npm run smoke

2. Configurar variables de entorno

export PROTON_BRIDGE_USER=you@proton.me
export PROTON_BRIDGE_PASS=your-bridge-password
export PROTON_MAIL_FROM=you@proton.me

3. Conectar tu cliente MCP

{
  "mcpServers": {
    "protonsuite": {
      "command": "npx",
      "args": ["-y", "@alexendros/protonsuite-agent", "protonsuite-mcp"],
      "env": {
        "MCP_TRANSPORT": "stdio",
        "PROTON_BRIDGE_USER": "you@proton.me",
        "PROTON_BRIDGE_PASS": "your-bridge-password",
        "PROTON_MAIL_FROM": "you@proton.me",
        "PROTON_BRIDGE_TLS_INSECURE": "true",
        "PROTON_PASS_ENABLED": "true",
      },
    },
  },
}

Seguridad: usa PROTON_PASS_BRIDGE_PATH=proton/bridge/password o el wrapper JIT en connectors/stdio-wrapper.sh.example para no dejar el bridge password en disco.

4. Organizar el buzón (dry-run)

AGENT_DRY_RUN=true npx -y @alexendros/protonsuite-agent organize

El agente analiza el inbox y presenta un plan de carpetas, etiquetas y alertas sin aplicar cambios. Desactiva AGENT_DRY_RUN para ejecutar.


Tools MCP

25 tools organizadas por producto. Todas aceptan response_format: "markdown" | "json".

ProductoToolsResumen
Mail14List, search, read, send, reply, forward, flag, move, delete, attachments
Pass4List, get (sin exponer valores), generate, health
Drive8Status, list, download, upload, share, audit, organize, format report
CalendarstubRegistradas pero {available: false} hasta CalDAV vía Bridge
Suite1Estado unificado de todos los productos

Ver tabla completa en docs/agent-quickstart.md.


Agente

GoalPipeline
setupVerifica Bridge (IMAP + SMTP), envía email de prueba
organizeClasifica inbox, propone carpetas/etiquetas, detecta amenazas
monitorSolo lectura — presenta alertas sin modificar
alertInspecciona amenazas de seguridad
pass-auditFortaleza de contraseñas, duplicados, rotación
suite-statusReporte unificado cross-producto
discover / check-imapVerificación rápida de conectividad

Drive CLI

# Instalar (opcional)
sudo wget -q 'https://proton.me/download/drive/cli/linux/proton-drive' \
  -O /usr/local/bin/proton-drive && sudo chmod +x /usr/local/bin/proton-drive
proton-drive auth login

Requiere DRIVE_ENABLED=true (default). Ver docs/drive-audit.md para configuración completa.


Despliegue

Docker

docker compose up -d

Ver docs/deployment-http-docker.md para auth, allowlist y healthcheck.

Instalador Ubuntu

bash scripts/install.sh

Ver scripts/install.sh para la instalación interactiva completa.


Documentación

DocumentoPara quiénQué cubre
docs/human-quickstart.mdUsuarios no técnicosInstalación paso a paso, Bridge, Pass, primer uso
docs/agent-quickstart.mdAgentes IATools, formatos de respuesta, ejemplos
docs/bridge-core.mdTodosBridge headless, puertos, vault, troubleshooting
docs/deployment-http-docker.mdDevOpsDocker, auth, allowlist, healthcheck
docs/local-stdio-secrets.mdOperadoresWrapper stdio sin secretos en disco
docs/alerting.mdOperadoresAlertas de contenido, webhook, logs
docs/knowledge-base.mdTodosClasificación profesional y categorías
docs/drive-audit.mdOperadoresDrive CLI, persistencia token, auditoría
ARCHITECTURE.mdDesarrolladoresCapas internas, modelo de amenazas
SECURITY.mdAuditoresControles activos y threat model
CONTRIBUTING.mdContribuidoresConvenciones, PRs, tests

Conectores

ArchivoUso
connectors/stdio-npx.jsonConfig stdio genérica para cualquier cliente MCP
connectors/stdio-wrapper.sh.exampleWrapper seguro con resolución JIT de secretos
connectors/http-curl.sh.exampleHandshake HTTP con curl

Playbooks

playbooks/ — workflows predefinidos: onboarding, organize inbox, triage, fraud detection, pass audit, daily briefing, setup checklist.


Calidad

npm run typecheck   # TypeScript strict
npm test            # 218 tests (Vitest)
npm run build       # Compilación
npm run smoke       # Verificación stdio
npm run knip        # Unused deps/exports

Seguridad

  • Bearer timing-safe, origin allowlist, rate-limit 120/min/token.
  • Per-session HTTP transport, sesiones idle evicted a los 30 min.
  • Sin credenciales ni cuerpos de request en logs.
  • Pass nunca expone valores de secreto — solo {found: true}.
  • Dry-run por defecto en el agente.

Licencia

AGPL-3.0 — Copyright 2026 Alejandro Domingo Agustí (Alexendros). Sin afiliación a Proton AG.

Ver NOTICE.md para dependencias y compatibilidad de licencias.

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Configuration

PROTON_BRIDGE_HOST

Hostname or IP of the Proton Mail Bridge (default: 127.0.0.1 for local, or container hostname in compose).

PROTON_IMAP_PORT

IMAP port exposed by Proton Mail Bridge (default: 1143).

PROTON_SMTP_PORT

SMTP port exposed by Proton Mail Bridge (default: 1025).

PROTON_USERNAME*

Bridge username (your Proton Mail address).

PROTON_PASSWORD*secret

Bridge-generated app password (NOT your Proton account password).

Registryactive
Package@alexendros/proton-mail-mcp
TransportSTDIO
AuthRequired
UpdatedMay 2, 2026
View on GitHub