Connecting Roo Code

Difficulty 🧩 Medium (VS Code extension)　|　API format OpenAI compatible　|　base_url https://byesu.com/v1

Setup · fill these in

API addresshttps://byesu.com/v1

API keysk-xxxxxxxxCreate in console →

Modelgpt-5.5

API format OpenAI compatible · model names follow the console

Roo Code is an AI coding assistant extension for VS Code (formerly Roo Cline). Point it at byesu — an AI API gateway with OpenAI-compatible and Anthropic-native endpoints — and one key lets you code with Claude, GPT-5.6, Grok, Gemini and more, billed pay-as-you-go with no subscription. Just enter the byesu base URL and your token in its settings.

Before you start

First go to Console → Tokens and create a token (for coding we recommend the Claude or GPT group, see Choosing a group).

Step 1: Install the extension

Open VS Code → Extensions Marketplace (Ctrl/⌘ + Shift + X) → search for Roo Code → install.

Step 2: Configure the endpoint

1. Click the Roo Code icon on the left to open it, then click Settings (the gear ⚙️)
2. For API Provider, select OpenAI Compatible
3. Fill in three things:
   • Base URL: https://byesu.com/v1
   • API Key: your sk-xxxx
   • Model: enter a model name, such as claude-opus-4-8 or gpt-5.5

The address ends with /v1

The Base URL must end with /v1 (https://byesu.com/v1). The model name must match the one in the Console exactly.

Roo Code uses the OpenAI-compatible endpoint (https://byesu.com/v1). byesu also exposes an Anthropic-native /v1/messages endpoint for clients like Claude Code — see Claude Code CLI Setup.

Step 3: Start using it ✅

Go back to the Roo Code chat box, send a message or ask it to edit a chunk of code. If it works normally, you're connected.

How billing works

Billing is pay-as-you-go per token — no subscription, no monthly plan. Each model's price is expressed as a multiplier relative to its official list price, and the Console shows your live billed price next to the official list price. Top up with USDT or Alipay.

Stuck?

• 401 / invalid token → the Key is wrong or has leading/trailing spaces (details)
• 404 / wrong endpoint → confirm the Base URL is https://byesu.com/v1 (with /v1)
• No available channel → the model isn't in your token's group (Choosing a group, details)
• For anything else, see Common errors & fixes