OpenCode Zen Provider

VS Code extension project for using curated OpenCode Zen models in Copilot Chat with your own OpenCode Zen API key.

Requirements

• VS Code 1.104.0 or later
• GitHub Copilot extension installed and active
• An OpenCode Zen API key from https://opencode.ai/auth

Installation

From Source

1. Clone this repository.
2. Run bun install --ignore-scripts && bun run compile.
3. Press F5 in VS Code to launch the Extension Development Host.

From VSIX

1. Run bun install --ignore-scripts && bun run package:vsix.
2. Install the generated .vsix file via Install from VSIX... in the Extensions view.

Setup

1. Open Copilot Chat and open the model picker.
2. Add or configure OpenCode Zen.
3. Enter your OpenCode Zen API key when prompted.
4. If needed, run OpenCode Zen: Manage OpenCode Zen API Key from the Command Palette.
5. Select OpenCode Zen in Copilot Chat and choose a model.

Supported Models

V1 uses a checked-in static catalog. The initial catalog includes:

• Big Pickle
• MiniMax M2.5, MiniMax M2.5 Free, MiniMax M2.7
• Claude Opus 4.7, Claude Sonnet 4.6
• GPT 5.4, GPT 5.4 Mini, GPT 5.4 Nano, GPT 5.4 Pro
• GPT 5.5, GPT 5.5 Pro
• Gemini 3 Flash, Gemini 3.1 Pro
• GLM 5.1
• Hy3 Preview Free
• Kimi K2.6
• Ling 2.6 Flash Free
• Nemotron 3 Super Free
• Qwen3.6 Plus

Current V1 Scope

• Provider registration, API key management, static model catalog, and core chat-provider wiring are included.
• The custom image-analysis tool from the Go reference project is intentionally excluded.
• Non-vision models reject image input explicitly in V1.

Development

bun install --ignore-scripts
bun run compile
bun run lint
bun run test -- --runInBand

Press F5 in VS Code to launch the Extension Development Host.

Available Scripts

• bun run compile - TypeScript compile
• bun run watch - TypeScript watch mode
• bun run test - Run Jest
• bun run lint - Run ESLint
• bun run lint:fix - Auto-fix ESLint issues
• bun run format - Run Prettier
• bun run package:vsix - Build a VSIX package

Marketplace Packaging

bun run package:vsix

Privacy

• Your API key is stored securely in VS Code SecretStorage.
• The Zen provider base URL is https://opencode.ai/zen/v1.