Generic (OpenAI-compatible)

Use this backend to connect to any provider that implements the OpenAI-compatible Chat Completions API.

Setup

1. Obtain the base URL from your provider.

2. Identify the model name you want to use.

3. Configure in Burp: Burp AI Agent → AI Backend tab in the bottom settings panel:

Setting	Value
Preferred Backend	Generic (OpenAI-compatible)
Base URL	Provider base URL
Model	Provider model identifier
API Key (Bearer)	(optional) if required
Extra Headers	(optional) additional headers
Timeout (seconds)	Increase for large responses

URL behavior

The extension builds the final endpoint as follows:

• If the Base URL ends with /v1 or /v4 (or any /vN), it appends /chat/completions.

• If the Base URL already ends with /chat/completions, it uses it as-is.

• Otherwise, it appends /v1/chat/completions.

Examples:

Base URL: https://api.example.com       -> https://api.example.com/v1/chat/completions
Base URL: https://api.example.com/v1    -> https://api.example.com/v1/chat/completions
Base URL: https://api.example.com/v4    -> https://api.example.com/v4/chat/completions

Headers are entered one per line:

X-Org: myorg
X-Project: myproj

Notes

• The backend uses non-streaming responses by default.

• If the provider requires authentication, set API Key (Bearer) or provide the header manually.

Troubleshooting

• HTTP 401/403: Check your API key and headers.

• HTTP 404: Verify the base URL and that the Chat Completions endpoint is supported.

• Timeouts: Increase the timeout value or use a smaller model.