Flashcat

Flashcat (Chinese brand name 快猫星云, KuaMao XingYun) is a Chinese software company that positions itself as a full-stack observability solution provider for the intelligent era. Its product family covers metrics, logs, APM, real user monitoring (RUM), monitoring and alerting, and on-call management, with AI used to drive fault discovery, root-cause analysis, incident response and performance optimization in order to reduce MTTR and keep business services stable. The company's flagship platform, Flashcat, is a privatizable (on-premises deployable) full-stack observability platform built on the open-source Nightingale (夜莺) monitoring and alerting engine. Nightingale is described as the first open-source project accepted and hosted by the CCF (China Computer Federation) after donation, with roughly 12,000 GitHub stars. Flashcat's unified alerting engine can connect to many data sources including Prometheus, Elasticsearch, ClickHouse, Loki and MySQL, providing alert evaluation, event processing and flexible alert distribution and notification. The platform is designed to trace and monitor every request end-to-end, from the user terminal through backend services and infrastructure, and ships with pre-built best practices for fault discovery and localization. Alongside the on-premises platform, Flashcat offers Flashduty, a SaaS one-stop alert and incident response platform supporting alert aggregation, noise reduction, scheduling, collaboration and multiple notification channels such as Feishu, DingTalk, WeCom, SMS, phone and Status Page. It lets teams respond to and handle alerts inside IM tools and a mobile app, managing the full lifecycle of alert events and analyzing alert data to improve the on-call experience and shorten MTTA/MTTR. A separate RUM SaaS product tracks and analyzes the real experience of users of web applications and mobile apps, collecting data directly from browsers or apps rather than through simulated tests, and includes session replay that records clicks, scrolling and input to reproduce problems precisely. Flashcat emphasizes three differentiators: full-stack coverage from user terminal to backend and infrastructure; intelligence, via a "power strip" data-integration mechanism that connects diverse data sources and breaks down data silos, using large language model technology and agent architecture for fault discovery, root-cause analysis and incident response; and openness, being derived from the Nightingale open-source core, following OpenTelemetry standards, deeply compatible with the Prometheus ecosystem to avoid vendor lock-in, and offering an all-in-one collector with open-source code and flexible extension. The company operates as Beijing KuaMao XingYun Technology Co., Ltd. (北京快猫星云科技有限公司), headquartered in the Haidian District of Beijing at the UFIDA Software Park East Zone 19A. It holds a computer software copyright registration certificate from the National Copyright Administration of the People's Republic of China (obtained 16 November 2022), ISO 9001 quality management system certification (23 November 2022), ISO 27001 information security management system certification (22 November 2022), and was recognized as a High-Tech Enterprise (高新技术企业) on 31 December 2024. Its customers span smart manufacturing, chain retail, gaming, enterprise services, finance, government and public sector, and internet companies. Flashcat is a private company and is not publicly listed.

Flashcat (快猫星云) is a Chinese observability software company whose history is closely tied to the open-source Nightingale (夜莺) monitoring project. Nightingale is an open-source cloud-native monitoring and alerting tool that became the first open-source project accepted and hosted by the CCF (China Computer Federation) after being donated, and it has grown to roughly 12,000 GitHub stars. Its unified alerting engine can connect to data sources such as Prometheus, Elasticsearch, ClickHouse, Loki and MySQL, offering alert evaluation, event handling and flexible alert distribution and notification. Building on that open-source core, the company created Flashcat, a privatizable full-stack observability platform covering metrics, logs, APM, RUM, monitoring and alerting, and on-call. The platform is designed to trace and monitor every request end-to-end, from the user terminal through backend services and infrastructure, and it ships with pre-built best practices for fault discovery and localization while deeply using AI to accelerate fault analysis and shorten recovery time. The company also developed Flashduty, a SaaS one-stop alert and incident response platform supporting alert aggregation, noise reduction, scheduling and collaboration, with built-in notification channels including Feishu, DingTalk, WeCom, SMS, phone and Status Page. Flashduty lets teams respond to and handle alerts inside IM tools and a mobile app, managing the full lifecycle of alert events and analyzing alert data to improve the on-call experience and shorten MTTA/MTTR. A separate RUM SaaS product tracks and analyzes real user experience for web and mobile applications, collecting data directly from browsers or apps and offering session replay that records clicks, scrolling and input to reproduce issues precisely. On the corporate side, the operating entity is Beijing KuaMao XingYun Technology Co., Ltd. (北京快猫星云科技有限公司), headquartered at UFIDA Software Park East Zone 19A in Haidian District, Beijing. The company obtained a computer software copyright registration certificate from the National Copyright Administration of the People's Republic of China on 16 November 2022, ISO 27001 information security management system certification on 22 November 2022, and ISO 9001 quality management system certification on 23 November 2022. On 31 December 2024 it was recognized as a High-Tech Enterprise (高新技术企业). Flashcat's product documentation covers multiple generations of Nightingale (V5 through V9), the Categraf collector, and enterprise-edition modules such as 北极星 (Polaris), 灭火图 (fire map), 事件墙 (event wall) and 日志分析 (log analysis), alongside ecosystem compatibility documentation for Prometheus and Telegraf. The company serves customers across smart manufacturing, chain retail, gaming, enterprise services, finance, government and public sector, and internet industries. It remains a private company and is not publicly listed.

• Beijing KuaMao XingYun Technology Co., Ltd. obtained a computer software copyright registration certificate from the National Copyright Administration of the People's Republic of China.

• The company obtained ISO 27001 information security management system certification.

• The company obtained ISO 9001 quality management system certification.

• The company was recognized as a High-Tech Enterprise (高新技术企业).

Full-stack, intelligent and open observability for the intelligent era, built on the open-source Nightingale core and AI-driven fault analysis.

• Flashcat full-stack observability platform

  A privatizable full-stack observability platform built on the open-source Nightingale core, covering metrics, logs, APM, RUM, monitoring and alerting, and on-call, with end-to-end request tracing and AI-accelerated fault analysis.

• Flashduty SaaS alert and incident response platform

  A SaaS one-stop alert and incident response platform supporting alert aggregation, noise reduction, scheduling and collaboration, with built-in Feishu, DingTalk, WeCom, SMS, phone and Status Page notifications, managing the full lifecycle of alert events.

• RUM SaaS real user monitoring platform

  Tracks and analyzes real user experience for web and mobile applications, collecting data directly from browsers or apps, with session replay recording clicks, scrolling and input to reproduce issues precisely.

• Nightingale (夜莺) open-source monitoring and alerting tool

  An open-source cloud-native monitoring and alerting tool, the first open-source project accepted and hosted by the CCF after donation, with roughly 12,000 GitHub stars and a unified alerting engine connecting Prometheus, Elasticsearch, ClickHouse, Loki and MySQL.

• Categraf all-in-one collector

  An all-in-one collector with open-source code and flexible extension, documented for installation, configuration, advanced capabilities and plugins.

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