pi-opencode

OpenCode provider extension for pi coding agent.

Access OpenCode Zen (cash balance) and OpenCode Go (subscription credits) models.

Features

• opencode-zen / opencode-zen-anthropic: Pay-as-you-go (https://opencode.ai/zen)
• opencode-go / opencode-go-anthropic: Subscription credits (https://opencode.ai/zen/go)
• 40+ models: GPT, Claude, Gemini, GLM, Kimi, Qwen, MiniMax, and more

Prerequisites

• pi installed
• OpenCode account at https://opencode.ai/auth

Installation

Option 1: Git URL (Recommended)

Add to your pi settings.json (~/.pi/agent/settings.json):

{
  "packages": [
    "git:https://github.com/awtotty/pi-opencode.git"
  ]
}

Option 2: Clone locally

git clone https://github.com/awtotty/pi-opencode.git ~/.pi/agent/extensions/pi-opencode

Configuration

1. Get your API key

1. Sign up at https://opencode.ai/auth
2. Add billing for Zen or subscribe to Go
3. Copy your API key

2. Set the environment variable

export OPENCODE_API_KEY="your-api-key-here"

Add to shell profile (~/.bashrc, ~/.zshrc, etc.) to persist.

3. Reload pi

/reload

Usage

Select a provider and model

/model opencode-zen/gpt-5.1
/model opencode-go-anthropic/minimax-m2.7

Or use /model to browse all available options.

Available Providers

| Provider | API | Endpoint | |----------|-----|----------| | opencode-zen | OpenAI Chat Completions | https://opencode.ai/zen/v1/chat/completions | | opencode-zen-anthropic | Anthropic Messages | https://opencode.ai/zen/v1/messages | | opencode-go | OpenAI Chat Completions | https://opencode.ai/zen/go/v1/chat/completions | | opencode-go-anthropic | Anthropic Messages | https://opencode.ai/zen/go/v1/messages |

MiniMax M2.7 and M2.5 use the Anthropic Messages API. All other models use OpenAI Chat Completions.

Troubleshooting

"No API key" error

echo $OPENCODE_API_KEY

If empty, set it and reload pi:

export OPENCODE_API_KEY="your-key"
/reload

Extension not loading

Run /reload after changes.

Model not found

Verify the model name is correct. Model IDs are case-sensitive.

Development

# Clone the repository
git clone https://github.com/awtotty/pi-opencode.git
cd pi-opencode

# Test locally
pi -e ./src/index.ts

License

MIT

Links

• pi coding agent
• OpenCode Zen
• OpenCode Go
• OpenCode