Skybridge

Skybridge is an open-source React framework for building MCP apps and MCP servers that run across Claude, ChatGPT, VS Code, and compatible MCP clients. The official site emphasizes a local emulator, hot module reload, public tunneling, type-safe server-to-view data flow, and agent-ready developer tooling.

• Cross-client MCP apps — write once and run in Claude, ChatGPT, VS Code, and compatible MCP clients • Local developer workflow — includes a local emulator, hot module reload, and a stable public tunnel for testing • Type-safe app model — uses tRPC-style inference from MCP server tool definitions to React views • Agent-ready tooling — CLI, Skills, and programmatic devtools APIs are designed to let coding agents build MCP apps end to end • Open-source credibility — official site states MIT licensing, 1K+ GitHub stars, and 100K monthly npm downloads