OpenCode CLI

OpenCode is an open-source CLI that supports multiple AI providers through a unified interface. It allows you to use models from Anthropic, OpenAI, Google, and other providers with a single tool.

Setup

1. Install the CLI: Follow the OpenCode documentation.

2. Set API keys for your chosen provider:

   # For Anthropic models:
   export ANTHROPIC_API_KEY="sk-ant-..."
   # For OpenAI models:
   export OPENAI_API_KEY="sk-..."
   # For Google models:
   export GOOGLE_API_KEY="..."

3. Verify it works: Test in your terminal:

   opencode "hello"

4. Configure in Burp: Open Burp AI Agent → Settings → AI Backend and set:

Setting	Value
Preferred Backend	OpenCode CLI (select from dropdown)
OpenCode CLI Command	opencode --model anthropic/claude-sonnet-4-5

The model flag must be included in the command field. Examples:

opencode --model anthropic/claude-sonnet-4-5
opencode --model openai/gpt-4o
opencode --model google/gemini-1.5-pro

Troubleshooting

• "command not found": Ensure opencode is installed and in your system PATH.

• Provider errors: Verify the API key for your chosen provider is configured correctly.

• Model not available: Check that the model identifier follows the provider/model format.