Free and Open Source, Distributed, RESTful Search Engine

Open Source Identity and Access Management For Modern Applications and Services

http下载工具，基于http代理，支持多连接分块下载

A powerful flow control component enabling reliability, resilience and monitoring for microservices. (面向云原生微服务的高可用流控防护组件)

CAT 作为服务端项目基础组件，提供了 Java, C/C++, Node.js, Python, Go 等多语言客户端，已经在美团点评的基础架构中间件框架（MVC框架，RPC框架，数据库框架，缓存框架等，消息队列，配置系统等）深度集成，为美团点评各业务线提供系统丰富的性能指标、健康状况、实时告警等。

Digital Signature Service : creation, extension and validation of advanced electronic signatures