LangWatch Review 2026: LLM and Agent Application Monitoring Platform
LangWatch는 LLM 애플리케이션과 AI 에이전트를 위한 오픈소스 모니터링·평가·최적화 플랫폼이다. 트레이싱, 실시간 평가, 에이전트 시뮬레이션, 프롬프트 관리를 단일 시스템에서 제공하며, 클라우드 플랜은 월 €59부터 시작하고 셀프호스팅은 완전 무료다. What Is LangWatch? (The LLM Observability Platform Explained) LangWatch is an open-source LLMOps platform that combines production monitoring, automated evaluation, agent simulation testing, and prompt optimization in a single unified system. Founded to address the fragmented tooling problem facing AI teams — where developers typically need 3–5 separate tools for tracing, evals, prompt management, and cost control — LangWatch consolidates all these workflows under one roof. As of 2026, the platform has surpassed 3,000 GitHub stars and supports 10+ LLM providers including OpenAI, Azure, AWS Bedrock, Google Gemini, Deepseek, Groq, MistralAI, VertexAI, and LiteLLM. The platform is built natively on OpenTelemetry, meaning enterprise teams can integrate with existing observability stacks without vendor lock-in. The LLM observability market it operates in is expanding fast: from $1.97 billion in 2025, it’s projected to hit $2.69 billion in 2026 at a 36.3% CAGR, and $9.26 billion by 2030. LangWatch positions itself as the platform for developers who want production-grade AI monitoring without stitching together half a dozen point solutions. ...