I built MCP Chat Studio as a local, Postman-style UI for testing and debugging
Model Context Protocol (MCP) servers during development.
The goal was to quickly explore tools, inspect protocol flows, run scenarios,
and catch breaking changes without embedding the server into a full chat app.
In v2 I added things like:
- A workspace canvas for organizing test panels
- Visual workflows and scenario runners
- Tool/schema inspection and diffing
- Mock MCP servers for offline testing
It’s still very much a developer tool, and I’m actively iterating on it.
I built MCP Chat Studio as a local, Postman-style UI for testing and debugging Model Context Protocol (MCP) servers during development.
The goal was to quickly explore tools, inspect protocol flows, run scenarios, and catch breaking changes without embedding the server into a full chat app.
In v2 I added things like: - A workspace canvas for organizing test panels - Visual workflows and scenario runners - Tool/schema inspection and diffing - Mock MCP servers for offline testing
It’s still very much a developer tool, and I’m actively iterating on it.
Repo + demo GIFs: https://github.com/JoeCastrom/mcp-chat-studio
I’d love feedback from anyone building MCP servers or similar tooling.