MCP Inspector vs Windmill
Side-by-side comparison of two AI agent tools
MCP Inspectorfree
Visual testing tool for MCP servers
Windmillopen-source
Open-source developer platform to power your entire infra and turn scripts into webhooks, workflows and UIs. Fastest workflow engine (13x vs Airflow). Open-source alternative to Retool and Temporal.
Metrics
| MCP Inspector | Windmill | |
|---|---|---|
| Stars | 11.0k | 18.1k |
| Star velocity /mo | 282.83422459893046 | 317.80748663101605 |
| Commits (90d) | 1.6k | 1.2k |
| Releases (6m) | 10 | 10 |
| Overall score | 0.8526887446365441 | 0.8726503315063926 |
Pros
- +提供直观的可视化界面，无需复杂的命令行操作即可测试 MCP 服务器
- +支持多种传输协议（stdio、SSE、streamable-http），兼容性强
- +零配置快速启动，通过 npx 命令即可直接运行，开发体验极佳
- +Multi-language support with automatic UI generation from scripts in Python, TypeScript, Go, Bash, SQL, and more
- +High performance workflow engine claiming 13x faster execution than Airflow
- +Self-hostable open-source solution with AGPLv3 license providing full control and customization
Cons
- -需要 Node.js 22.7.5+ 环境，对运行环境有特定要求
- -主要面向 MCP 服务器开发者，普通用户使用场景有限
- -作为调试工具，不适合生产环境部署使用
- -AGPLv3 license may restrict some commercial use cases and require careful compliance consideration
- -Being a comprehensive platform may introduce complexity for simple automation tasks
- -Self-hosting requires infrastructure management and maintenance overhead
Use Cases
- •MCP 服务器开发过程中的功能验证和调试测试
- •集成 MCP 服务器到应用前的接口兼容性检查
- •MCP 协议实现的教学演示和原型验证
- •Building internal APIs and webhooks from existing scripts without additional infrastructure
- •Creating automated workflows for background jobs and data processing pipelines
- •Developing low-code internal applications with custom UIs for non-technical team members