OpenCode

OpenCode's provider system supports any OpenAI-compatible endpoint via the @ai-sdk/openai-compatible package. Add a custom provider to opencode.jsonc (either project-local or ~/.config/opencode/opencode.jsonc for all projects):

{
  "$schema": "https://opencode.ai/config.json",
  "provider": {
    "dodorouter": {
      "npm": "@ai-sdk/openai-compatible",
      "options": {
        "baseURL": "{base_url}/r/{router}/v1",
        "apiKey": "sk-dodo-YOUR_KEY"
      },
      "models": {
        "default": { "name": "DodoRouter" }
      }
    }
  }
}

Then run it against that provider/model:

opencode run -m dodorouter/default "Reply with exactly the single word: pong"

Verified: returned pong. The model key (default above) can be any label — it isn't sent upstream as a real model id, since DodoRouter substitutes whatever the routing chain resolves to. Add more entries under "models" if you want several OpenCode-visible "models" that all point at the same DodoRouter provider but happen to carry different display names.