Getting started

For plan advice and quotes, join the pre-sales group. After purchase, join the after-sales group first for hands-on help.

Step 1 — Create an account

Go to the sign-up page: https://api.lmuai.ai/register?ref=vJaWWr4T

Enter your email and a password to finish registration.

Step 2 — Subscribe or top up

After logging in, click "Top up / Subscribe" in the left menu:

• Subscribe: pick a plan and get a fixed monthly quota
• Top up: add balance on demand and use any model flexibly

You're ready to go as soon as payment completes.

Step 3 — Create an API key

1. Click "API Keys" in the left menu
2. Click "Create key" and give it any name
3. Once created, save your API key (the value that starts with sk-)

Step 4 — Configure your tool

API base URL:

Pick the base URL that matches your tool's protocol:

Anthropic protocol (Claude Code, Cherry Studio, Trae, Kilo Code with Claude / Chinese models, etc.):

https://api.lmuai.ai

OpenAI protocol (Codex CLI, Codex App, VS Code / Cursor with GPT, Kilo Code with OpenAI models, etc.):

https://api.lmuai.ai/v1

Keep these three things handy — every tool setup below needs them:

• API Key: the sk- key you created in the console (shared by both protocols)
• Anthropic base URL: https://api.lmuai.ai
• OpenAI base URL: https://api.lmuai.ai/v1

Next steps

Pick the setup guide for your tool:

Last updated: 2026-08-26

Still have questions? Ask in the LMU AI Community (in Chinese) and sign in with your console account.