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PopNx MCPMCP servers for people who use AI · explained in plain words

BumbleBox

by BumbleBoxversion 2.1.0i★ –iRuns in the cloud
Registry nameai.bumblebox/mail

Install

Overview

Description from the maker (original English)

Search and triage all your mailboxes; draft replies and campaigns; send only as you allow.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

  • Connection: Runs in the cloud
  • Transport: Streamable HTTP
  • Category: Marketing & social media

Install

Pick the AI app you use, then copy the settings.

Before you install

You need

Which app do you use?

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

  1. Open Settings → Connectors
  2. Press Add custom connector
  3. Paste the address below and press Add
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Add2https://…3
https://api.bumblebox.ai/api/mcp

Run this in your terminal

claude mcp add --transport http mail https://api.bumblebox.ai/api/mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "mail": {
      "url": "https://api.bumblebox.ai/api/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "mail": {
      "type": "http",
      "url": "https://api.bumblebox.ai/api/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

  1. Open ChatGPT on the web → Settings → Connectors (Apps)
  2. Press Create or Add (some plans need Developer mode under Advanced first)
  3. Paste the address below, give it a name and save
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Create2https://…3
https://api.bumblebox.ai/api/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Tool names and descriptions exactly as the server reported them on Nov 7, 2026. The maker wrote them, not us; we show them as plain text.

  • search_emails

    Searches every connected mailbox (sender, subject, preview), newest first. Operators: from:, subject:, before:YYYY-MM-DD, after:YYYY-MM-DD, in:sent (only what the user sent, from any mailbox or alias); the rest is free text. Deleted emails are not returned.

  • get_email

    One email in full: sender, recipients, date, subject, plain-text body, attachment names, folder and BumbleBox classification.

  • list_to_answer

    Received emails BumbleBox classified as needing a reply and still in the inbox, newest first.

  • search_contacts

    Contacts BumbleBox knows from the mail history (name, address, organization domain, exchange counts, last exchanges, VIP mark, note), matched on name, address or domain.

  • list_folders

    The folders of each connected mailbox, as last synced. Trash, spam, sent and drafts are left out.

  • list_calendar_events

    Events of the connected Google calendars between two dates (default: the next 7 days, at most 62 days).

  • draft_reply

    Saves the text as the reply draft of a received email, from the address the email was written to (a brand address or the mailbox). needsIdentity: that address cannot send until the user verifies it in BumbleBox. Nothing is sent: the draft waits in BumbleBox (Pilotage › prepared r

  • send_reply

    Replies to the sender of one received email, and only to them (no Cc, no Bcc, no attachment), from the address the email was written to. What happens next is the level the user set in BumbleBox for this kind of reply: a draft, a reply waiting for one tap (the default), or a reply

  • archive_email

    Moves one inbox email to its mailbox's archive folder, on the mail server too. Undone by restore_to_inbox. Nothing is deleted.

  • move_email

    Moves one inbox email to an existing folder of the same mailbox (see list_folders), on the mail server too. No folder is created. Undone by restore_to_inbox.

  • trash_email

    Moves one inbox email to its mailbox's trash when BumbleBox certifies it as noise (spam, newsletter, promotion, with a unanimous safety vote and no known contact or action word). Any other email is not moved: it becomes a proposal the user confirms in one tap in BumbleBox. Never

  • restore_to_inbox

    Moves an archived, filed or trashed email back to the inbox, on the mail server too.

  • list_missions

    The user's prospection campaigns (missions), most recently active first, with the number of drafts waiting, emails sent and prospects who replied.

  • list_campaign_drafts

    The drafts of one campaign that wait for the user to validate them in BumbleBox (recipient, subject, plain-text body, sender), newest first, with the true totals.

  • list_replies_to_validate

    Replies received on campaigns that still need the user: prepared reply drafts waiting for validation, and replies with no answer yet (with the stored AI triage: kind, summary, whether a human is needed).

  • create_campaign_draft

    Writes one draft inside an existing campaign, to one recipient (added to the campaign list if new), from the campaign's sender. Nothing is sent: the draft waits for the user to validate the campaign send in BumbleBox.

  • update_campaign_draft

    Changes the subject, body or recipient of a draft that is still a draft. Nothing is sent, and a draft the user already validated cannot be changed.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 8, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified against the domain bumblebox.ai (the registry checks domain ownership)

  • … Not checked yet

    Still maintained

    We have not read this repo from GitHub yet

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • ✓ Pass

    Endpoint responds

    Responded in 94 ms (HTTP 200)

  • – Not applicable

    Sign-in with OAuth

    No sign-in needed

  • ✓ Pass

    No hidden instructions in tool descriptions

    Read 17 tool descriptions and found no hidden instructions to the AI

Compared with others in Marketing & social mediai

  • More stars than 0% of the other 3609 servers in this category
  • Published to the registry more recently than 67% of the other 3609 servers in this category
  • Basic checks equal to or better than 100% of the other 3609 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is BumbleBox safe?

It passed 3 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (2.1.0) reached the registry 17 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: MCP YouTube Transcript, Google Analytics MCP, BibiGPT YouTube Video Summarizer

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

MCP YouTube Transcript

An MCP server retrieving transcripts of YouTube videos

by jkawamotoGrowing★ 495Updated 11 days ago

Runs on your computer

Google Analytics MCP

GA4 MCP server for AI agents: schema discovery, server-side aggregation, analysis-ready defaults.

by surendranbGrowing↓ 1.1K/wk★ 244Updated 11 days ago

Runs on your computer

BibiGPT YouTube Video Summarizer

AI video summarizer: summarize and transcribe YouTube, Bilibili, TikTok and podcast videos.

by JimmyLvGrowing★ 137Updated 11 days ago

Runs in the cloud✓ bibigpt.co

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

BumbleBox MCP server

Email intelligence for people running several businesses, inside your AI assistant. BumbleBox triages every connected mailbox (Gmail, Outlook, any IMAP); this remote MCP server lets Claude, ChatGPT, Cursor, VS Code or any MCP client work with it.

  • Endpoint: https://api.bumblebox.ai/api/mcp (streamable HTTP)
  • Auth: OAuth 2.1 with dynamic client registration and PKCE. You approve once on bumblebox.ai and see exactly which permissions the assistant gets.
  • Plans: Pro or Business (pricing).
  • Setup for every client: https://bumblebox.ai/integrations

Install

Claude Code (plugin, with the /bumblebox:to-answer and /bumblebox:tidy commands):

/plugin marketplace add BumbleBox/bumblebox-mcp

/plugin install bumblebox@bumblebox

Or just the server: claude mcp add --transport http bumblebox https://api.bumblebox.ai/api/mcp

Claude (claude.ai, desktop): Settings → Connectors → Add custom connector → https://api.bumblebox.ai/api/mcp.

ChatGPT: Settings → Apps & Connectors → create a connector (developer mode), paste the server URL, authentication OAuth.

Cursor (~/.cursor/mcp.json):

{ "mcpServers": { "bumblebox": { "url": "https://api.bumblebox.ai/api/mcp" } } }

VS Code (.vscode/mcp.json):

{ "servers": { "bumblebox": { "type": "http", "url": "https://api.bumblebox.ai/api/mcp" } } }

Tools

ToolWhat it does
search_emails, get_emailSearch and read every connected mailbox
list_to_answerEmails waiting for your reply
search_contacts, list_folders, list_calendar_eventsContacts, folders, calendar
draft_replyA reply draft that waits in BumbleBox for your click on Send
send_replyA reply to the original sender, at the level you set in BumbleBox
archive_email, move_email, trash_email, restore_to_inboxTidy on request, always undoable
list_missions, list_campaign_drafts, list_replies_to_validateYour campaigns
create_campaign_draft, update_campaign_draftCampaign drafts, sent only from BumbleBox

What it never does

BumbleBox sends nothing without your click — Send, Schedule, or a standing permission you set yourself in BumbleBox for a precise scope (existing participants of a thread you opened, a message with no commitment), capped, logged and cancellable. Anything else waits for your validation, and an assistant can never change that permission.

There is no permanent deletion: trash_email moves only certified noise to the Trash and turns anything else into a one-tap proposal in BumbleBox; everything is undone with restore_to_inbox.

Links

  • Privacy policy: https://bumblebox.ai/privacy
  • Terms: https://bumblebox.ai/terms
  • Support: contact@bumblebox.ai
  • llms.txt: https://bumblebox.ai/llms.txt

This repository holds the public metadata (registry server.json, Claude Code plugin). The server itself is operated by BumbleBox. Licence: MIT.

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