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OpenCode

4i.codes8/13/26About 1 min

Connect OpenCode Desktop to 4i.codes

Before you begin, create an API key for an OpenAI service group in the 4i.codes console. See API Keys and Access if needed.

Step 1: Download and open OpenCode

Visit the OpenCode download page, install the desktop app for your operating system, and open it to reach the main screen.

Step 2: Add a custom OpenAI-compatible provider

  1. Click the current model name at the lower-left corner of the prompt box.
  1. Click View 70+ more providers at the bottom of the model window.
  1. Select Custom OpenAI-compatible provider from the provider list.

Step 3: Configure the custom provider

Use the following values:

  • Provider ID: enter 4icodes. This field accepts lowercase letters, numbers, hyphens, or underscores.
  • Display name: choose any name; 4i.codes is recommended for easy identification.
  • Base URL: enter https://api.4i.codes/v1.
  • API key: enter the API key created in the 4i.codes console.

Scroll down to the Models section. Click Add model, then enter each model ID and display name in a separate row.

Model IDDisplay name
gpt-5.6-solGPT-5.6 Sol
gpt-5.6-terraGPT-5.6 Terra
gpt-5.6-lunaGPT-5.6 Luna
gpt-5.5GPT-5.5

After adding the models, scroll down and click Submit.

Step 4: Test the model connection

After submitting the provider, select one of the models you just added from the lower-left corner of the prompt box and send a simple test message. If the model replies normally, 4i.codes has been connected to OpenCode successfully.

Warning

An API key grants access to your account balance. Never share a complete key or commit it to a public repository.

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