OpenCode

Overview#

OpenCode is a terminal-first AI coding tool. It supports configurable providers, including OpenAI-compatible endpoints like ModelStack.

Prerequisites#

• OpenCode installed
• ModelStack API key from dashboard

Installation#

Use the official installer:

curl -fsSL https://opencode.ai/install | bash

Configure ModelStack#

Set your provider in OpenCode config with:

• Base URL: https://api.modelstack.cc/v1
• API key: your ModelStack key
• Model: e.g. claude-sonnet-4-6

Example provider config (shape may vary by OpenCode version):

{
  "provider": {
    "id": "modelstack",
    "type": "openai",
    "options": {
      "apiKey": "YOUR_MODELSTACK_API_KEY",
      "baseURL": "https://api.modelstack.cc/v1"
    }
  }
}

Troubleshooting#

• Confirm your API key is active
• Confirm base URL is exact (no extra path)
• Confirm model name exists in supported models