Vibe Coding Discover

MCP

Server-agnostic MCP testing framework and full-stack MCP App framework for ChatGPT Apps, Claude Connectors, and more.

★ 21712 forksTypeScriptMITAlignbase

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

sunpeak — Vibe Coding Discover