sunpeak
View on GitHubServer-agnostic MCP testing framework and full-stack MCP App framework for ChatGPT Apps, Claude Connectors, and more.
TypeScript framework for building cross-platform MCP Apps, with a local ChatGPT and Claude runtime inspector, deterministic simulations, end-to-end and visual testing, and multi-model evaluations.
Use Cases
Build cross-platform MCP AppsTest MCP tools and app UIs locallyRun end-to-end and visual regression tests in CISimulate ChatGPT and Claude host environmentsEvaluate MCP tool schemas and descriptions across modelsInspect and interact with any MCP server
Built With
- Language
- TypeScript
- Frameworks
- MCP Apps SDK · MCP TypeScript SDK · React · Vercel AI SDK · Playwright
Tags
MCP · MCP Apps · testing · evals · inspector · ChatGPT Apps · Claude Connectors · end-to-end testing · visual regression · simulations · multi-platform · hot reload