letX connector
Use letX inside ChatGPT
Compile LaTeX to PDF, use 1000+ templates, and create letX projects, without leaving ChatGPT.
Requires a paid ChatGPT plan (Plus/Pro/Team) with developer mode. Free-plan access arrives when letX is listed in the ChatGPT apps directory.
- 1
Enable developer mode
In ChatGPT go to Settings → Connectors → Advanced and turn on Developer mode.
- 2
Add the letX connector
Choose Add custom connector and enter the server URL:
https://api.letx.app/mcp - 3
Sign in to letX
Your browser opens letx.app. Sign in (or create a free account) and click Allow access. ChatGPT never sees your password.
- 4
Use it
Ask ChatGPT things like “compile this LaTeX and give me the PDF”, “find an IEEE paper template and start a project”, or “fix the compile error in my thesis project”.
What ChatGPT can do with letX connected
- Compile LaTeX → PDF on a real TeX Live farm
- Search 300+ free templates
- Start projects from any template
- Read & edit your project files
- See compile errors and fix them itself
- Hand off to the letX editor anytime
Frequently asked questions
Is it free?
Connecting is free for every letX account. Compiles use your letX plan’s quota. Free accounts get a generous daily allowance and Pro is unlimited.
What can ChatGPT do with my account?
Exactly what you approve on the consent screen: browse templates, read and edit your projects, and compile. It cannot delete projects, manage sharing, or see your password. Disconnect anytime from Settings → Connected Accounts.
Can it insert images or figures?
The connector handles text files (.tex.bib). For figures, open the project in letX. The editor handles uploads, live preview, and collaboration.