Lightcone API
The Lightcone API by Tzafon provides cloud browser and desktop computers operated by AI. It spans an agent Tasks API (start, stream, pause, resume, inject messages) driven by the Northstar computer-use model, a direct computer-control surface (create/list/delete computers, click, type, scroll, navigate, screenshot, shell exec, tabs, batch actions), an OpenAI-compatible Responses API with computer-use tool calls and multi-turn previous_response_id chaining, Chat Completions, and a Models listing. Errors use RFC 7807 problem+json; task streams are resumable SSE.