OpenCast — Turn Any Screen into an AI-Driven Display

OpenCast (云播屏) is a screen carousel display system for live streaming, dashboards and smart-home scenarios. AI agents push live messages — device status, stream stats, countdowns, charts, logs — straight to any browser-connected TV, tablet or projector over a simple REST and WebSocket API. No app install, zero setup: open a screen URL, pick one of 330+ visualization templates and 35+ color themes, and your data starts rotating full-screen within seconds.

• 330+ visualization templates: KPI cards, terminal logs, live charts, weather, media walls and more.
• REST API for agents: PUT/POST/GET/DELETE on /api/s/{screenId}/messages with bearer token auth.
• Real-time sync via WebSocket (/ws) and Server-Sent Events, with polling fallback.
• Infinite carousel mode chains multiple screens into one continuous playlist.
• Agent resources: OpenAPI spec at /openapi.json, onboarding guide at /opencast-skill/SKILL.md, docs index at /llms.txt.

Each screen lives at a URL of the form /s/{screenId}:{token}. Visit the homepage to spawn a live screen instantly, or generate an 8-character screen ID and 16-character token locally and push data with one curl command.