The LetX MCP server,
connected in one click.
Collaborative LaTeX editor: search 1,019 templates, edit projects, and compile them to PDF. Connect the official LetX MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
Add LetX to your AI in one minute
Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.
claude mcp add --transport http letx https://api.letx.app/mcpRun in your terminal, then restart Claude Code. The client will open the vendor's sign-in the first time you use it.
LetX · https://api.letx.app/mcp
What your AI can do with LetX
Real prompts you can type the moment it's connected — no setup, no docs to read.
“What can LetX do for me?”
“Show me the tools LetX exposes.”
How secure is the LetX MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how LetX holds up.
Official endpoint
Operated by LetX (letx.app) at its documented MCP endpoint — not a third-party mirror or community re-host.
OAuth sign-in — your account, your rules
You grant access from your own LetX account and can revoke it there at any time. gate never sees your password.
Scanned before it goes live
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
Watched for drift
If LetX adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
LetX's server requires OAuth, so it can't be scanned anonymously — connect it in gate and the same scan runs automatically before it goes live.
Connected in three steps
Connect your gate
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Pick LetX
Choose LetX in the gate directory. Sign in to your LetX account to grant access.
Use it anywhere
LetX's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
Who runs the LetX MCP server?
The LetX MCP server at a glance
https://api.letx.app/mcpQuestions, answered
Is there an official LetX MCP server?
Yes — LetX operates its own remote MCP server at api.letx.app. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
How do I connect LetX to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick LetX in the directory. You sign in to LetX via OAuth to grant access. From then on, LetX's tools are available in every client you've connected to gate.
Do I need to host anything?
No. LetX runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the LetX MCP server safe to connect?
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Is it free?
Yes — you can get started with gate for free and connect LetX in minutes. No credit card required.
Connect more than just LetX
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up LetX in: Claude · Claude Code · ChatGPT · Cursor · VS Code