Gateway

Name: Gateway
Author: Edison-Watch

by Edison-Watchversion 1.0.0i★ –iRuns in the cloud

Registry nameai.sealgate/gateway

Install

Overview

Description from the maker (original English)

MCP gateway with runtime security policy, tool-call-level control, and audit of agent actions.

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 checksi1 of 1 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: Runs in the cloud
Transport: Streamable HTTP
Category: Other

Install

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

Before you install

Basic checks: 1 of 1 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?

ClaudeClaude CodeCursorVS CodeChatGPT

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://mcp.sealgate.ai/mcp

Run this in your terminal

claude mcp add --transport http gateway https://mcp.sealgate.ai/mcp

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "gateway": {
      "url": "https://mcp.sealgate.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.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "gateway": {
      "type": "http",
      "url": "https://mcp.sealgate.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://mcp.sealgate.ai/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

We have not read this server’s tool list yet; we check endpoints in rotation.

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 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified against the domain sealgate.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
… Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
… Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
… 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 Otheri

More stars than 0% of the other 32568 servers in this category
Published to the registry more recently than 32% of the other 32568 servers in this category
Basic checks equal to or better than 100% of the other 32568 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 Gateway safe?

It passed 1 of 1 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 (1.0.0) reached the registry 2 months 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: Spec Driven Development, Remote Desktop Commander, FlyDocs

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

Spec Driven Development

by formulahendry

MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.

Runs on your computer★ 440MITUpdated 14 months ago

Install

Remote Desktop Commander

by desktop-commander

Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.

Runs in the cloud★ 211Updated yesterday

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FlyDocs

by flydocs.ai

Spec-driven development workflow: your agent works issues, sessions and the status lifecycle.

Runs on your computerUpdated today

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.

Sealgate MCP Server

The Model Context Protocol (MCP) server for Sealgate, the AI data-leak-prevention platform: a security gateway and data firewall that sits between AI agents (Claude, ChatGPT, Cursor, Copilot) and your organisation's data and tools.

This server is a thin MCP proxy. It forwards a small set of tool calls to a Sealgate gateway, which you configure with two environment variables. Sealgate runs managed release hosts (the remote MCP gateway at mcp.sealgate.ai and the Management API at dashboard.sealgate.ai), and demo or self-hosted orgs run their own, so this bridge stays host-agnostic: you supply the URL and key.

Tools

Tool	What it does
`list_mcp_servers`	List the MCP servers governed by your Sealgate gateway, with access-control classification and connection status.
`get_session_status`	Review recent agent sessions and audit events: what agents did, which data flowed, and any blocked actions.

Connect to the hosted gateway

Sealgate runs a managed remote MCP gateway at https://mcp.sealgate.ai/mcp. It is a per-user proxy that aggregates every MCP server you have enabled behind one Streamable HTTP endpoint and enforces Sealgate's access-control policies on every call. There is nothing to install: point your client at the endpoint and sign in through the browser.

Endpoint:   https://mcp.sealgate.ai/mcp

Transport: streamable HTTP (remote, not stdio) Auth: OAuth 2.1 in the browser, no key to paste

Client	Add it
Claude	[Add to Claude](https://claude.ai/new?modal=add-custom-connector&connectorName=SealGate&connectorUrl=https%3A%2F%2Fmcp.sealgate.ai%2Fmcp#settings/customize-connectors) opens the Add custom connector dialog with the name and URL filled in. Claude flags it as suggested by an external link; that is expected. On Team and Enterprise plans an admin adds it.
ChatGPT	Settings → Connectors → Advanced settings → turn on Developer mode. Back on Connectors, click Create, paste the endpoint, and name it. Start a new chat so the tools menu refreshes.

| Claude Code | claude mcp add --transport http --scope user sealgate https://mcp.sealgate.ai/mcp Then run /mcp in a session to sign in. | | Cursor | Not working? Add the endpoint by hand under Settings → MCP. | | VS Code | [Add to VS Code](https://vscode.dev/redirect/mcp/install?name=sealgate&config=%7B%22type%22%3A%22http%22%2C%22url%22%3A%22https%3A%2F%2Fmcp.sealgate.ai%2Fmcp%22%7D) requires Copilot agent mode. | | Goose | Adds it as an extension over streamable HTTP. | | Grokbot | Add a remote MCP server pointing at https://mcp.sealgate.ai/mcp over streamable HTTP, then sign in through the browser. | | Any MCP client | Add a remote server at https://mcp.sealgate.ai/mcp over streamable HTTP. Cline, Zed and Windsurf all work; each spells the config differently (VS Code servers, Cursor and Cline mcpServers, Zed context_servers, and Windsurf wants serverUrl where everyone else wants url). |

Every one-click button routes through an https:// install URL, since GitHub strips custom URL schemes such as cursor:// from links.

How OAuth works

The gateway is an OAuth 2.1 authorization server, so most clients connect with no API key at all. The flow uses dynamic client registration (RFC 7591) and client ID metadata documents, mandatory PKCE (S256), and issues refresh tokens via the offline_access scope, so a session stays connected without re-authenticating every hour. Discovery, consent, and token endpoints all live on the gateway origin, so self-hosted single-origin deployments work with no extra configuration.

API key in the URL

Clients that cannot run an OAuth flow can pass a Sealgate API key as a URL path segment instead:

https://mcp.sealgate.ai/mcp/{api_key}/?client={label}

Replace {api_key} with the key from your dashboard and {label} with an optional session label. This is not OAuth and not an Authorization header; the key travels in the path.

mcp.sealgate.ai is the managed release host. Demo and self-hosted orgs run their own gateway host, so substitute your own URL where needed.

Connect your messaging apps

The same gateway fronts Sealgate's messaging connectors (the Beeper desktop app plus the sealgate-stdiod tunnel), so any client above can read and send across your chat networks. Every message an agent reads or sends passes through the same policy checks and lands in the same audit log as every other tool call.

Network	Guide
WhatsApp	https://sealgate.ai/connect/whatsapp
Telegram	https://sealgate.ai/connect/telegram
iMessage	https://sealgate.ai/connect/imessage
Signal	https://sealgate.ai/connect/signal
LinkedIn DMs	https://sealgate.ai/connect/linkedin
Instagram	https://sealgate.ai/connect/instagram
Messenger	https://sealgate.ai/connect/messenger
Discord	https://sealgate.ai/connect/discord
X	https://sealgate.ai/connect/x
LINE	https://sealgate.ai/connect/line
Per-client guides	Codex + iMessage, Claude + LinkedIn, ChatGPT + WhatsApp, and all 100 at https://sealgate.ai/connect

Codex + iMessage in one command: the companion repo Edison-Watch/codex-imessage wires Codex to iMessage through the gateway with a single install step.

Configuration

Set two environment variables, both issued or hosted by your organisation:

Variable	Description
`SEALGATE_GATEWAY_URL`	Base URL of your Sealgate Management API (e.g. `https://dashboard.sealgate.ai`).
`SEALGATE_API_KEY`	Sealgate API key from your dashboard.

If either is unset, every tool returns a clear configuration message instead of failing, so registry probes and --help never crash.

Install

Prefer the hosted gateway above. The npm package is the stdio alternative for clients that cannot use a remote server; it runs via npx and needs the two environment variables from Configuration. Also published in the official MCP Registry as ai.sealgate/gateway and io.github.Edison-Watch/sealgate-mcp.

"mcpServers": { "sealgate": { "command": "npx", "args": ["-y", "@sealgate/mcp"], "env": { "SEALGATE_GATEWAY_URL": "https://dashboard.sealgate.ai", "SEALGATE_API_KEY": "your-sealgate-api-key" } } } }

VS Code spells the same block as servers with "type": "stdio". Ready-made files for each client live in examples/.

Usage

# Run over stdio (default transport)

npx -y @sealgate/mcp

Show usage

npx -y @sealgate/mcp --help

Set SEALGATE_MCP_TRANSPORT=http (with an optional PORT, default 3000) to serve streamable HTTP instead of stdio.

Develop

Requires Bun.

bun install

bun run src/index.ts --help # run from source bun test # run tests bun run build # bundle to dist/ make ci # lint, typecheck, dead-code, and the rest

Gateway

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

FlyDocs

README from the maker

Sealgate MCP Server

Tools

Connect to the hosted gateway

How OAuth works

API key in the URL

Connect your messaging apps

Configuration

Install

Usage

Show usage

Develop

Links

License