Vexa
by Vexa-ai
Meeting bot and transcripts for Google Meet, Teams and Zoom. Live or after, speakers labelled.
Runs in the cloud★ 2,949Apache-2.0Updated 2 months ago
Install
mailmcp
Overview
Description from the maker (original English)
Your mailboxes in ChatGPT and Claude: Gmail, iCloud, Fastmail, any IMAP. Passwords stay yours.
PopNx MCP’s three pillars
These three are never merged into one score: opinions, measurements and popularity are different things.
- User voiceiNo reviews yetReviews open together with accounts in a later step
- Our basic checksi3 of 3 passedChecked from public information; code not scanned yet
- UsageiNot measured yet★ –
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: Computer or cloud
- Transport: stdio, Streamable HTTP
- Category: Chat & email
Install
Pick the AI app you use, then copy the settings.
Before you install
- Basic checks: 3 of 3 passed
- Runs on the maker’s server: what you ask it goes through their server.
- The registry lists no key to fill in.
You need
- Runs in the cloudNothing to install; it connects over the internet
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:
- Open Settings → Connectors
- Press Add custom connector
- Paste the address below and press Add
- If it asks you to sign in, sign in with the maker
https://mailmcp.ai/mcpDownload the maker’s .mcpb file
The link goes to the maker’s own file; we do not host or repackage it. Open the file and Claude Desktop installs it.
Run this in your terminal
claude mcp add --transport http mailmcp https://mailmcp.ai/mcpOr copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"mailmcp": {
"url": "https://mailmcp.ai/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.
Or copy the settings yourself
Paste into .vscode/mcp.json in your project
{
"servers": {
"mailmcp": {
"type": "http",
"url": "https://mailmcp.ai/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:
- Open ChatGPT on the web → Settings → Connectors (Apps)
- Press Create or Add (some plans need Developer mode under Advanced first)
- Paste the address below, give it a name and save
- If it asks you to sign in, sign in with the maker
https://mailmcp.ai/mcpMenu 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
The server asks you to sign in before it lists its tools.
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 6, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified against the domain mailmcp.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 149 ms (HTTP 401)
- ✓ Pass
Sign-in with OAuth
Declares OAuth sign-in, so your AI app can take you to log in
- … Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint
Compared with others in Chat & emaili
- More stars than 0% of the other 1767 servers in this category
- Published to the registry more recently than 92% of the other 1767 servers in this category
- Basic checks equal to or better than 100% of the other 1767 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 mailmcp 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?
Either way works: install it on your computer or connect to the cloud version.
Is it still maintained?
The GitHub repo last changed –, and the latest version (0.15.0) reached the registry 2 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: Vexa, emailmd, MCP WhatsApp Cloud
Alternatives
Servers in the same category from other makers, sorted by stars.
Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
emailmd
by anypost
Render markdown into email-safe HTML, lint drafts for deliverability problems, and preview emails.
Computer or cloud★ 1,385MITUpdated 31 days ago
Install
MCP WhatsApp Cloud
by codespar
MCP server for WhatsApp Cloud API (Meta) — messages, media, and templates via Graph API
Runs on your computer★ 277MITUpdated 5 months ago
Install
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.
mailmcp
All your mailboxes in ChatGPT and Claude. Passwords stay yours.
mailmcp is a self-hosted MCP server that gives ChatGPT, Claude and other MCP clients access to your e-mail over IMAP and SMTP: several mailboxes at once, any provider, attachments in both directions. This repository is the prebuilt distribution (minified bundles in dist/, no build step) under a commercial licence; it runs as a free tier without a key. The source code is not provided.
Ask *"What came in from accounting this week?"* and get one answer across Gmail, iCloud and the company mail server: the invoice as a download link, a reply already drafted.
When to use it
Use mailmcp when you have more than one mailbox, a provider without an official connector, or you need attachments. As of September 2026 the official Gmail and Outlook connectors in ChatGPT and Claude handle one mailbox each and cannot send attachments.
| Official connectors | mailmcp | |
|---|---|---|
| Mailboxes | one per connector | several at once, one token |
| Providers | Gmail, Outlook | Gmail, Outlook.com, Microsoft 365, iCloud, Fastmail, Yahoo, Zoho, Seznam.cz and any IMAP/SMTP server with password sign-in, including your own domain |
| Attachments | read some, send none | one-hour download links; sending from the mailbox, from a file the assistant uploads, or by forwarding |
| Authentication | OAuth grant held by the AI vendor | an app password, encrypted in your browser into a token; the server keeps one master key and no database |
| Hosting | the vendor's | yours: Vercel, Docker, any Node 22 host, or Claude Desktop without a server |
| Cost | included in the assistant's plan | free with a signature in sent mail, or one payment (€19 / €149) |
Quickstart
Requirements. Node 22 (or Vercel, or Docker), an HTTPS address (ChatGPT and Claude only connect over HTTPS), and an app password for each mailbox. Gmail: turn on 2-Step Verification first, otherwise Google hides the app-passwords page (organisation policies or Advanced Protection can hide it too). Outlook.com and Microsoft 365 need no password: the user signs in at Microsoft on the setup page (see "Outlook and Microsoft 365" below).
- Set an invite code. A server that issues user tokens must say who may create one, otherwise anyone who knows the address can spend your quota. Pick
MAILMCP_INVITE_CODE(at least 8 characters) and hand it to the people who may create a token; without it the server issues no tokens and the setup page shows a notice for you. Forgot the code? Read it in your Vercel or Docker environment, or set a new one and redeploy: tokens already issued keep working. A deliberately public server setsMAILMCP_OPEN_SIGNUP=1instead.
- Deploy. Click the Vercel button above; it asks for
MAILMCP_KEY(32 random bytes as base64url,node -e "console.log(require('crypto').randomBytes(32).toString('base64url'))"),MAILMCP_LICENSE(your key, or empty for the free tier) and the invite code from step 1. Or run it yourself:
docker build -t mailmcp . && docker run -d -p 8080:8080 \-e MAILMCP_KEY=… -e MAILMCP_LICENSE=… -e MAILMCP_INVITE_CODE=… \ -e MAILMCP_PUBLIC_URL=https://mail.example.com mailmcp
without Docker: node dist/node.js with the same variables
- Open `https:// /start` and follow it: on the setup page pick the provider, paste the e-mail and the app password, tick what the assistant may do (reading is on by default; drafts are a good second step; sending only with an allowlist of recipients). The page encrypts the password in your browser and hands you one token.
- Connect. ChatGPT → Settings → Apps → Create → URL
https:// /mcp; claude.ai → Settings → Connectors → Add custom connector. Sign in with the token. Then ask: *"List my mail accounts."*
Try it without deploying. The shared server at mailmcp.ai/setup runs this same code; create a token there and connect. The operator of any shared server can technically see your configuration while it serves your requests, which is why companies run their own.
Claude Desktop, no server. Download mailmcp.mcpb from the latest release, open it in Claude Desktop, paste the configuration from /setup → "Values for your own deployment".
Behind a reverse proxy set MAILMCP_PUBLIC_URL or MAILMCP_TRUST_PROXY=1. Company mail servers on private addresses need MAILMCP_ALLOW_PRIVATE_MAIL_HOSTS=1. Changing MAILMCP_KEY invalidates every token. All variables: .env.example.
| Variable | What it does |
|---|---|
MAILMCP_KEY | The one master key; seals user tokens and signs OAuth artifacts. Changing it invalidates every token. |
MAILMCP_LICENSE | Your licence key. Empty runs the free tier. |
MAILMCP_INVITE_CODE | Required on a token-issuing server: the code your users type on /setup, at least 8 characters. |
MAILMCP_OPEN_SIGNUP | 1 on a deliberately public server, in place of an invite code. |
MAILMCP_MS_CLIENT_ID | Your own Entra app registration id for the Microsoft sign-in. Required for any Microsoft sign-in on your server (the vendor's app is used on mailmcp.ai only). |
MAILMCP_MS_REDIRECT | 1 when this origin is registered as a redirect URI (https:// /api/ms/callback) in that app: the setup page then signs in through a popup instead of a device code. |
MAILMCP_MS_DISABLED | 1 hides the Microsoft sign-in and answers 404 on every /api/ms/* route. |
MAILMCP_DISABLE_GRAPH | 1 refuses Outlook mailboxes at runtime, including in tokens already issued. |
MAILMCP_ATTACHMENT_DIRS | stdio only: folders (separated by : on macOS/Linux, ; on Windows) where attachments may be saved and read, in addition to policy.attachment_dirs. Claude Desktop sets them in the extension settings. |
MAILMCP_NO_STATS | 1 switches the usage statistics off; the daily update check stays (a GET /api/version without content). |
MAILMCP_STATS | Server copies: 0/false/off/no switches the statistics off, like MAILMCP_NO_STATS=1. Claude Desktop and other desktop (stdio) copies: 1/true/on/yes switches them on (the extension setting "Anonymous usage statistics" writes it); empty or unset leaves them off. |
MAILMCP_NO_UPDATE_CHECK | 1 sends no request to mailmcp.ai at all: no update check and no statistics. |
DO_NOT_TRACK | 1/true switches the statistics off, like MAILMCP_NO_STATS=1. |
MAILMCP_PUBLIC_URL | The public address, when the server is behind your own reverse proxy. |
MAILMCP_ALLOW_PRIVATE_MAIL_HOSTS | 1 lets user tokens name mail servers on private addresses. |
Outlook and Microsoft 365
These mailboxes have no password: Microsoft rejects password sign-in on most accounts. The user picks the provider Outlook / Microsoft 365 on /setup and clicks Sign in with Microsoft. This needs your own Entra app registration (MAILMCP_MS_CLIENT_ID, steps below); without it the setup page offers no Microsoft sign-in. When your server's origin is a registered redirect URI (MAILMCP_MS_REDIRECT=1) the button opens a popup with the account picker; otherwise the page asks whether the user signs in with a personal account (Outlook.com, Hotmail) or a work or school account (Microsoft 365) and shows a short code to type at microsoft.com/link or login.microsoft.com/device respectively. Either way the sign-in sits behind your invite code (the device-code relay requires one even with MAILMCP_OPEN_SIGNUP=1), and your users see your app's name on the consent screen. No token reaches the vendor: your server runs the sign-in.
What to tell your users: at most three Outlook mailboxes per token; the consented Microsoft permissions follow the capabilities they tick (Mail.Read for read-only, otherwise Mail.ReadWrite and Mail.Send), so widening them later needs a new sign-in; a sign-in lasts about 90 days (the date is on /setup and in list_accounts as reauth_by, and clients that refresh through our OAuth have it rolled automatically); changing the mailbox password does not end it, revoking the app at Microsoft does, for every token that used that account. Tenants that leave consent to administrators need a one-off approval at https://login.microsoftonline.com/organizations/adminconsent?client_id= . Mail then flows over Microsoft Graph, so message ids are strings rather than numbers and labels are Outlook categories. Full guide: mailmcp.ai/docs.
Your own Microsoft app registration
Microsoft sign-in on your server needs an app registration of your own (the vendor's registration is used on mailmcp.ai only). Register it and use the popup flow, which works for personal and work accounts alike; new Microsoft 365 tenants block sign-in with a code (security defaults, AADSTS530035):
- Microsoft Entra → App registrations → New registration; supported account types: Accounts in any organizational directory and personal Microsoft accounts.
- Authentication → add the platform Mobile and desktop applications (not Web) with the redirect URI
https:// /api/ms/callback. mailmcp is a public client with no secret; under the Web platform Microsoft demands one and the sign-in fails with AADSTS7000218. - Authentication → Allow public client flows: Yes.
- API permissions → delegated Microsoft Graph
Mail.Read,Mail.ReadWrite,Mail.Send,User.Read,offline_access. - Set
MAILMCP_MS_CLIENT_ID=andMAILMCP_MS_REDIRECT=1, redeploy.
Tenants that allow user consent only for verified publishers additionally need publisher verification on your registration (Microsoft AI Cloud Partner Program), or an admin's consent for the whole tenant.
What the assistant can do
Every tool is gated by the permissions in the token, per mailbox:
| Permission | Tools |
|---|
| read (default) | list_accounts, list_folders, search_messages (Gmail syntax on Gmail), get_message, get_thread, get_attachment (one-hour download link), ChatGPT search/fetch, triage, awaiting_replies, digest
Only the beginning is shown; read the rest in the repo