# CesiumJS Agent browser-only

Natural language control of CesiumJS -- no MCP needed.

## Setup

Just want to try it? Click Start — defaults work out of the box. Open this dialog later from the Settings button to change the model, endpoint, or API key.

API Endpoint Default /api/chat works with Cloudflare Pages deployment
OpenAI API Key (optional, for direct calls) If provided, calls OpenAI directly (CORS required). Leave empty to use proxy.
Model Default deepseek/deepseek-chat-v3-0324 via proxy. For direct call use openai/gpt-4o-mini
Cesium Ion Token (optional) For terrain/imagery access. Default demo token used if empty.