OpenCode

OpenCode is an open-source AI coding agent. It can route through PrimeRouter via the @ai-sdk/openai-compatible provider.

One-line installer

Windows PowerShell

irm https://primerouter.ai/install/opencode.ps1 | iex

macOS / Linux / WSL

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

💡 The script writes ~/.config/opencode/config.json (Windows: %APPDATA%\opencode\config.json), declares a provider called primerouter with default model claude-sonnet-4-6, and chmod 600's the file.

Launch:

opencode

Fallback: manual install

Full manual setup

1. Install Node.js v22+ and opencode-ai:

   npm install -g opencode-ai

2. Write ~/.config/opencode/config.json:

   {
     "$schema": "https://opencode.ai/config.json",
     "provider": {
       "primerouter": {
         "npm": "@ai-sdk/openai-compatible",
         "name": "PrimeRouter",
         "options": {
           "baseURL": "https://primerouter.ai/v1",
           "apiKey": "sk-your-key"
         },
         "models": {
           "claude-sonnet-4-6": { "name": "claude-sonnet-4-6" }
         }
       }
     },
     "model": "primerouter/claude-sonnet-4-6"
   }

3. Full walkthrough: Coding Tools → OpenCode