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Proton Mail MCP via Bridge (IMAP/SMTP) · 13 tools · dual transport stdio + HTTP.
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Proton Mail MCP via Bridge (IMAP/SMTP) · 13 tools · dual transport stdio + HTTP.
Security Report
Well-architected MCP server for Proton Mail with strong security practices including timing-safe token comparison, per-session HTTP transport, rate limiting, and origin allowlist. Code is well-tested with 39 tests, strict TypeScript, and comprehensive CI/CD. Permissions align appropriately with purpose (network access to Bridge, environment variables for credentials). Minor findings around logging practices and input validation do not materially impact security. Supply chain analysis found 4 known vulnerabilities in dependencies (0 critical, 3 high severity). Package verification found 1 issue.
3 files analyzed · 9 issues found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
What You'll Need
Set these up before or after installing:
Environment variable: PROTON_BRIDGE_HOST
Environment variable: PROTON_IMAP_PORT
Environment variable: PROTON_SMTP_PORT
Environment variable: PROTON_USERNAME
Environment variable: PROTON_PASSWORD
How to Install
Add this to your MCP configuration file:
{
"mcpServers": {
"io-github-alexendros-proton-mail-mcp": {
"env": {
"PROTON_PASSWORD": "your-proton-password-here",
"PROTON_USERNAME": "your-proton-username-here",
"PROTON_IMAP_PORT": "your-proton-imap-port-here",
"PROTON_SMTP_PORT": "your-proton-smtp-port-here",
"PROTON_BRIDGE_HOST": "your-proton-bridge-host-here"
},
"args": [
"-y",
"@alexendros/proton-mail-mcp"
],
"command": "npx"
}
}
}Documentation
View on GitHubFrom the project's GitHub README.
Proton Suite Agent
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: 15 de agosto de 2026 · v1.2.1
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) · 958 tests · cobertura ~98% (gate 95%).
| Capa | Estado |
|---|---|
| Mail (Bridge IMAP/SMTP) | Operativo |
Pass (pass / gopass) | Operativo |
Drive (proton-drive CLI) | Operativo (ADR-006) |
| Calendar | Stub hasta CalDAV en Bridge (ADR-005) |
| Documentación canónica | Subfase 0 |
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.
| Modo | Descripción |
|---|---|
| stdio (default) | Sin exponer red. Ideal para agentes IA locales. |
| streamable HTTP | Bearer auth + origin allowlist. Docker / reverse proxy. |
Qué leer a continuación
| Si necesitas | Abre | Aún no |
|---|---|---|
| Lo no negociable | CONSTITUTION.md | ROADMAP entero |
| Orden de trabajo y fases | ROADMAP.md | Código |
| Implementar como agente | AGENTS.md | ARCHITECTURE completo |
| Capas y flujos | ARCHITECTURE.md | Código |
| Threat model | SECURITY.md | — |
| Contribuir / PR | CONTRIBUTING.md | — |
| Contrato de tools MCP | docs/api/mcp-tools.md | — |
| Decisiones (por qué) | docs/adr/ | — |
| Índice de guías | docs/README.md | — |
| Playbooks + prompts | playbooks/README.md | — |
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
git clone https://github.com/Iniciativas-Alexendros/agent-protonsuite.git
cd agent-protonsuite
pnpm install && pnpm build && pnpm 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/passwordo el wrapper JIT enconnectors/stdio-wrapper.sh.examplepara no dejar el bridge password en disco.
4. Organizar el buzón (dry-run)
AGENT_DRY_RUN=true pnpm exec protonsuite-agent organize
# o: npx -y @alexendros/protonsuite-agent organize
El agente analiza el inbox y presenta un plan sin aplicar cambios. Desactiva AGENT_DRY_RUN solo tras revisión.
Tools MCP
47 tools por defecto (50 con Calendar experimental). Lectura: response_format: "markdown" | "json".
| Producto | Tools | Resumen |
|---|---|---|
| 14 | List, search, read, send, reply, forward, flag, move, delete, attachments | |
| Pass | 4+ | List, get (sin valores), generate, health; audit vía agente |
| Drive | 8+ | Status, list, download, upload, share, audit, organize |
| Calendar | stub | {available: false} hasta CalDAV vía Bridge (ADR-005) |
| Suite / Bridge / Ecosystem / Agent | resto | Estado unificado, Bridge, binarios, plan de agente |
Contrato generado: docs/api/mcp-tools.md. Guía: docs/agent-quickstart.md.
Agente
| Goal | Pipeline |
|---|---|
setup | Verifica Bridge (IMAP + SMTP) |
organize | Clasifica inbox, carpetas/etiquetas, amenazas |
monitor / alert | Solo lectura — alertas |
pass-audit | Fortaleza, duplicados, plan de rotación (dry-run) |
suite-status | Reporte cross-producto |
discover / check-imap | Conectividad |
| Drive goals | drive-audit, drive-organize, … |
Drive CLI
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.
Despliegue
docker compose up -d
Ver docs/deployment-http-docker.md. Instalador: scripts/install.sh.
Documentación
| Documento | Para quién | Qué cubre |
|---|---|---|
CONSTITUTION.md | Todos | No negociables |
ROADMAP.md | Dirección / agente | Fases y criterios de salida |
AGENTS.md | Agentes IA | Contrato operativo |
docs/human-quickstart.md | Usuarios | Instalación paso a paso |
docs/agent-quickstart.md | Agentes IA | Tools y ejemplos |
docs/bridge-core.md | Operadores | Bridge headless |
docs/deployment-http-docker.md | DevOps | Docker, auth, Pass en compose |
docs/local-stdio-secrets.md | Operadores | Wrapper JIT |
docs/alerting.md | Operadores | Webhook, ntfy, logs |
docs/drive-audit.md | Operadores | Drive CLI |
ARCHITECTURE.md | Desarrolladores | Capas y flujos |
SECURITY.md | Auditores | Threat model |
CONTRIBUTING.md | Contribuidores | PRs, pnpm, tests |
playbooks/ | Operadores | Workflows + prompts |
Calidad
pnpm run typecheck # TypeScript strict
pnpm test # Vitest (953+)
pnpm run coverage # Coverage v8 — gate 95%, objetivo ≥98%
pnpm run build # tsc → dist/
pnpm run smoke # stdio initialize + tools/list
pnpm run knip # Unused deps/exports
pnpm docs:check # mcp-tools.md en sync
Seguridad (resumen)
- Bearer timing-safe, origin allowlist, rate-limit 120/min/token.
- HTTP per-session; idle eviction 30 min.
- Pass nunca expone valores — solo
{found: true}. - Dry-run por defecto en el agente (CONSTITUTION.md §4).
Progreso de cobertura
| Fecha | Statements | Branches | Tests | Notas |
|---|---|---|---|---|
| Ago 2026 | ~98% | ~95% | 953 | Subfase 0 + Fase 1 |
| Jul 2026 | 98.07% | 93.63% | 864 | Branch hunt |
| Jun 2026 | 61.7% | — | 258 | Base |
Conteo canónico: pnpm test 2>&1 | grep -E 'Test Files|Tests'.
Licencia
AGPL-3.0 — Copyright 2026 Alejandro Domingo Agustí (Alexendros). Sin afiliación a Proton AG.
Ver NOTICE.md para dependencias.
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