OpenCode

Reviewed by Proof · Updated

Definition

OpenCode is an open-source AI coding agent for the terminal that can use luv13 as a custom OpenAI-compatible provider.

Key takeaways

  • Add luv13 as a custom provider in your opencode.json config.
  • Use the @ai-sdk/openai-compatible package, and set options.baseURL to https://api.luv13.ai/v1.
  • List the luv13 model ids you want under models, such as luv13/glm-5.3-flash.
  • Store the key with OpenCode's /connect command (choose Other), or point options.apiKey at an environment variable.
  • These names come from OpenCode's official providers docs.

Setup

  1. In OpenCode, run /connect, scroll to Other, and enter a provider id such as luv13. Then paste your luv13 key.
  2. Create or edit opencode.json in your project and add a provider with the same id:
{
  "$schema": "https://opencode.ai/config.json",
  "provider": {
    "luv13": {
      "npm": "@ai-sdk/openai-compatible",
      "name": "luv13",
      "options": {
        "baseURL": "https://api.luv13.ai/v1"
      },
      "models": {
        "luv13/glm-5.3-flash": {
          "name": "GLM 5.3 Flash (luv13)"
        }
      }
    }
  }
}
  1. Run /models and pick the luv13 model.

Using an environment variable instead

OpenCode's config supports {env:NAME} values, so you can skip /connect and read the key from your environment:

"options": {
  "baseURL": "https://api.luv13.ai/v1",
  "apiKey": "{env:LUV13_API_KEY}"
}

Notes

  • The keys under models must match luv13's ids exactly. Get them from https://api.luv13.ai/v1/models. See Model IDs.
  • OpenCode lets you set limit.context and limit.output per model. luv13's model list doesn't publish context lengths, so leave these out unless the operator gives you numbers. See Context Window.
  • OpenCode is an agent that relies on tool calling. See Tool Calling on luv13.
  • If it doesn't work, run opencode auth list to check the credential, and make sure the provider id in /connect matches the one in opencode.json.

Check your settings first

curl https://api.luv13.ai/v1/chat/completions \
  -H "Authorization: Bearer $LUV13_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "luv13/glm-5.3-flash", "messages": [{"role": "user", "content": "Hi"}]}'