Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Se ejecuta en tu computadora
Benethos Mailbox MCP
Resumen
Descripción del creador (original en inglés)
MCP server that gives AI agents your mailboxes through mailbox-service, within its token's rights.
Los tres pilares de PopNx MCP
Estos tres nunca se combinan en una sola puntuación: las opiniones, las mediciones y la popularidad son cosas distintas.
- Opinión de usuariosiAún no hay reseñasLas reseñas se abrirán junto con las cuentas en una etapa posterior
- Nuestras revisiones básicasi1 de 1 superadasRevisado con información pública; el código aún no se ha escaneado
- UsoiMuy nuevo↓ 111/sem · ★ –
Qué puedes hacer con él
Todavía no escribimos un resumen sencillo para este. Abajo están los datos que leímos del registro.
- Conexión: Se ejecuta en tu computadora
- Transporte: stdio
- Categoría: Otros
- Debes completar: MAILBOX_SERVICE_TOKEN
Instalación
Elige la app de IA que usas y copia la configuración.
Antes de instalar
- Revisiones básicas: 1 de 1 superadas
- Se ejecuta en tu computadora con los permisos de tu usuario (archivos, red, apps).
- Debes completar tú:
MAILBOX_SERVICE_TOKEN,MAILBOX_SERVICE_URL,MAILBOX_SERVICE_ALLOW_HTTP
Los valores marcados como secretos son llaves de tu cuenta. Nunca los compartas ni los pegues en un chat.
Necesitas
- PyPIuv de Python instalado (para el comando uvx)
¿Qué app usas?
Elige tu app arriba. La recordamos, así que la próxima vez el botón dirá “Instalar en …”.
Descargar el archivo .mcpb del creador
El enlace lleva al archivo del propio creador; no lo alojamos ni lo reempaquetamos. Abre el archivo y Claude Desktop lo instalará.
Ejecuta esto en tu terminal
claude mcp add benethos-mailbox --env MAILBOX_SERVICE_TOKEN=your-value --env MAILBOX_SERVICE_URL=your-value --env MAILBOX_SERVICE_ALLOW_HTTP=your-value -- uvx benethos-mailbox-mcpCompleta los valores vacíos antes de ejecutarlo.
O copia la configuración tú
Pégalo en .cursor/mcp.json de tu proyecto, o en ~/.cursor/mcp.json
{
"mcpServers": {
"benethos-mailbox": {
"command": "uvx",
"args": [
"benethos-mailbox-mcp"
],
"env": {
"MAILBOX_SERVICE_TOKEN": "your-value",
"MAILBOX_SERVICE_URL": "your-value",
"MAILBOX_SERVICE_ALLOW_HTTP": "your-value"
}
}
}
}Tu navegador te pide permiso para abrir la app; luego la app muestra la configuración y te pide confirmar. Los valores de las claves quedan vacíos para que los completes tú.
O copia la configuración tú
Pégalo en .vscode/mcp.json de tu proyecto
{
"servers": {
"benethos-mailbox": {
"type": "stdio",
"command": "uvx",
"args": [
"benethos-mailbox-mcp"
],
"env": {
"MAILBOX_SERVICE_TOKEN": "your-value",
"MAILBOX_SERVICE_URL": "your-value",
"MAILBOX_SERVICE_ALLOW_HTTP": "your-value"
}
}
}
}Tu navegador te pide permiso para abrir la app; luego la app muestra la configuración y te pide confirmar. Los valores de las claves quedan vacíos para que los completes tú.
Este se ejecuta en tu computadora, y ChatGPT solo puede conectarse a servidores en internet. Elige otra app.
Tu elección se guarda en una cookie en este dispositivo; no necesitas cuenta.
Valores que debes completar
- An API token of mailbox-service, made on a user's page in its UI. The server acts with that user's rights.
MAILBOX_SERVICE_URLenvThe address of mailbox-service.MAILBOX_SERVICE_ALLOW_HTTPenvSet to true to send the token over plain http to a service on another machine. Not needed for localhost or https.
Esta configuración se genera a partir de la ficha del creador en el registro. Si el README dice otra cosa, sigue el README.
Qué puede hacer
Se ejecuta en tu computadora; la lista de herramientas aparece en tu app de IA después de instalarlo.
Revisiones básicasi
Revisamos información que cualquiera puede ver; no hemos leído el código. Las revisiones que no aplican no se cuentan. · Revisado el 9 nov 2026
- ✓ Superada
El creador coincide con el repo
El nombre en el registro se verificó con la cuenta de GitHub benethos-hub, dueña del repo
- … Aún sin revisar
Sigue en mantenimiento
Todavía no hemos leído este repo en GitHub
- … Aún sin revisar
Tiene licencia
Todavía no hemos leído este repo en GitHub
- – No aplica
El endpoint responde
Este se ejecuta en tu computadora; no hay endpoint en internet
- – No aplica
Inicio de sesión con OAuth
Se ejecuta en tu computadora y usa ajustes locales en su lugar
- … Aún sin revisar
Sin instrucciones ocultas en las descripciones de herramientas
Se ejecuta en tu computadora; solo podemos leer listas de herramientas de endpoints en internet
Comparado con otros en Otrosi
- Más estrellas que el 0% de los otros 18669 servidores de esta categoría
- Publicado en el registro más recientemente que el 95% de los otros 18669 servidores de esta categoría
- Revisiones básicas iguales o mejores que el 100% de los otros 18669 servidores de esta categoría
Comparado con todos los servidores activos de esta categoría en el registro. Las estrellas solo cuentan cuando quien lo publica es dueño del repo.
Preguntas frecuentes
¿Es seguro Benethos Mailbox MCP?
Superó 1 de 1 revisiones básicas aplicables. No hemos leído el código. Antes de agregar una clave o un token, revisa qué acceso pide el servidor y usa una clave que tenga solo los permisos que necesitas.
¿Qué claves o códigos necesita?
Debes completar: MAILBOX_SERVICE_TOKEN
¿Se ejecuta en mi computadora o en la nube?
Se ejecuta en tu computadora. Tu app de IA lo inicia cuando hace falta, y los datos no pasan por los servidores del creador (a menos que el propio servidor llame a un servicio en línea).
¿Sigue en mantenimiento?
El repo de GitHub cambió por última vez –, y la última versión (0.6.1) llegó al registro ayer.
¿Qué apps pueden usarlo?
Las apps compatibles con MCP, como Claude Desktop, Claude Code, Cursor y VS Code. También necesitas Python (uv), MCPB en tu computadora.
¿Qué puedo usar en su lugar?
En la misma categoría: Spec Driven Development, Remote Desktop Commander, CLIO Paraview
Alternativas
Servidores de la misma categoría hechos por otros creadores, ordenados por estrellas.
Cómo leer una tarjeta:↓ Descargas por semanai★ Estrellas de GitHubiTres pilares: reseñas · revisiones · usoiActualizado = fecha en que se publicó la última versión en el registroi
Remote Desktop Commander
Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.
Se ejecuta en la nube✓ desktopcommander.app
CLIO Paraview
Visualize simulation results in ParaView: load fields, then slice, contour, color and render them.
Se ejecuta en tu computadora
README del creador
Abrir el README
Copiado tal cual del repo del creador. PopNx MCP no lo ha revisado ni lo respalda. Se quitaron HTML, imágenes y scripts. Los enlaces llevan fuera de este sitio.
Mailbox
One REST API for all your mailboxes, whichever provider they are at, a Python client for it and an MCP server on top. Scripts, tools and AI agents work with your mail through one door you control.
Status: beta, version 0.6.1. Usable with real accounts. A breaking
change of the API or the configuration is announced in the changelog.
Stored data is carried forward by migrations.
Contents
- What it is for
- Working with an AI agent in your mail
- More uses
- What it can do today
- Providers
- The four packages
- Getting started
- Documentation
- Development
- Licence
What it is for
Most people and small companies have more than one mail account: a personal address at GMX or web.de, a company mailbox at Microsoft 365, an info@ address at some hoster, maybe a Gmail account. Each speaks its own dialect: IMAP here, Microsoft Graph there. Every tool that wants to work with mail has to learn all of them and has to be given the passwords.
Mailbox turns that around. It has four packages. mailbox-service runs on your own machine or server and holds the connections to all accounts. Everything else talks to that service only, through one REST API that looks the same for every provider. mailbox-client is the Python client of that API, for scripts and apps. mailbox-mcp, the MCP server, builds on the client and opens the service to AI agents. mailbox-common holds what the service and the MCP server share. The service decides who may do what. A script, an app or an AI agent gets a token of its own. That token opens exactly the accounts and operations it was given, nothing more.
That makes a few things simple that are hard otherwise.
Working with an AI agent in your mail
Through the MCP server, Claude or another AI agent works with every account you gave it. A few requests it handles today:
- "What came in since last night?"
- "Move every invoice from Company XY to the folder Accounting."
- "Forward today's invoices to our tax advisor."
- "Show me all mail from Company XY between the 1st and the 15th of September."
- "Which mails with attachments came this week? Read the invoice and tell me the amount and the due date."
- "Sum up the mails about the offer and write a draft reply."
- "Mark last week's newsletters as read and move them to the archive."
Its rights decide whether it may send on its own or only leave drafts for a person to send. A grant can also name the recipients it may write to, such as the tax advisor's address alone, and how many mails it may send a day. A mail to anyone else is refused. It can keep the agent to some folders, such as the invoices, and end after a week.
More uses
- Controlled access. A bookkeeping tool reads the invoice folder of one account and nothing else. It may neither send nor delete, and it never sees a mail password, only its own token.
- Automation across accounts. A script files invoices, archives newsletters and forwards order confirmations. It works the same way for GMX, Microsoft 365 and your own mail server.
- Sending with guard rails. A newsletter job sends from info@, to a fixed list of recipients, at most a few times a day.
- React instead of polling. Signed webhooks tell your own system about new mail, a ticket tool or an internal dashboard for example.
- Traceable. Every send is recorded in the audit: by whom, when and under which grant. So is every sign-in and every change to users, tokens, roles, accounts and webhooks.
- One inbox for your own tools. A dashboard or a small internal app lists, searches and answers mail from every account with one client.
- Self-hosted. The service stores the credentials encrypted. Mail goes straight from the provider to you, never through a third party's cloud.
What it can do today
- Accounts: IMAP with SMTP for sending, set up from the address alone (autodiscovery), JMAP servers such as Fastmail and Stalwart, POP3 for mailboxes without IMAP (the inbox only), Microsoft accounts (Outlook.com, Microsoft 365) over Microsoft Graph with OAuth sign-in, and Gmail over the Gmail API. Credentials are encrypted (AES-256-GCM) under a master key kept outside the database.
- Reading: folders, lists and search, one account or all at once, conversations across folders, messages as text and HTML, attachments, the raw source. Message ids stay the same when a message moves, kept by a background sync. A link to an attachment lets another service fetch the file once, without a token.
- Writing: read state, stars and keywords, moving, deleting, folders, drafts, and sending with reply, reply to all and forward. A retried send is not sent twice (
Idempotency-Key). - Changes: a change feed names each message created, changed or deleted since a point you keep, in IMAP, JMAP, POP3, Microsoft and Gmail accounts, flags set in other mail clients included where the IMAP server offers CONDSTORE. Webhooks post the same events, signed, to a URL of your choice, a host in your local network included.
- Users and rights: users, roles and grants per account and per operation, down to folders, grants that expire, API tokens, limits on sending (allowed recipients, sends per day), an audit of every send and an audit of administration.
- MCP server: reads, sorts, writes drafts, sends and tells what is new, over stdio or streamable HTTP, offering only the mail tools its token may use,
server_statusalways, and following its rights while it runs. Mail content reaches the model marked as foreign text. - Configuration UI in the browser under
/ui: accounts, users, rights, tokens, reading and writing mail, the send audit, webhooks, the status of accounts and sync, the audit of administration, the service log. - Operation: encrypted backup and restore, container images, compose files for operation with HTTPS through Caddy and MCP server instances.
What comes next, and in which order, is in docs/ROADMAP.md.
Providers
| Provider | Connected via | Credential | State |
|---|---|---|---|
| GMX, web.de, T-Online, Yahoo, AOL, iCloud, Posteo, mailbox.org, IONOS, Strato, own mail servers | IMAP + SMTP | app password | available |
| Microsoft 365, Outlook.com | Microsoft Graph | OAuth, through the project's app or your own (setup) | available |
| Proton Mail | IMAP + SMTP through Proton Mail Bridge | Bridge password | IMAP, not tested |
| Gmail / Google Workspace | Gmail API, or IMAP + SMTP | OAuth, with your own Google Cloud client (setup), or an app password | available |
| Fastmail, Stalwart, other JMAP servers | JMAP | API token or password | available |
| legacy mailboxes without IMAP | POP3 + SMTP: the inbox only, no folders, no read state, no search | password | available |
Not supportable: Tuta, which offers no IMAP and no API. Details per provider in docs/CONCEPT.md, section 5.3.
The four packages
| Package | What it is | Runs | Read more |
|---|---|---|---|
mailbox-service | the service: REST API, configuration UI, users and rights, accounts, encrypted credentials, provider adapters, background sync | permanently | packages/mailbox-service |
mailbox-client | the Python client of the REST API, async and sync | inside your own code | packages/mailbox-client |
mailbox-mcp | the MCP server, on top of mailbox-client | per client over stdio, or as a server over HTTP | packages/mailbox-mcp |
mailbox-common | what the service and the MCP server share | installed with them | packages/mailbox-common |
A release publishes all four to PyPI under the same version, as benethos-mailbox-service, benethos-mailbox-client, benethos-mailbox-mcp and benethos-mailbox-common, and the service and the MCP server as container images on ghcr.io. The MCP server is listed in the official MCP Registry as io.github.benethos-hub/benethos-mailbox-mcp, and every release carries it as a Claude Desktop extension, benethos-mailbox-mcp.mcpb. Each package has its own README. It explains how to install, start and configure it, for the service and the MCP server with the container image and the compose file.
The MCP server and the service must have the same version to work
together. Update both at once. The MCP server's tool
server_status
shows the service's version and whether it matches its own.
Getting started
- Start the service and create the first user: packages/mailbox-service.
- Open
http://127.0.0.1:8080/ui, sign in asadminwith the one-time password, choose a password of your own and connect your accounts. - Give y
Solo se muestra el principio; lee el resto en el repo