Arize Phoenix
Open-source LLM tracing and evaluation with real-time monitoring
Built with:
Typescript 
GitHub 
NodeJS 
Bash 
Github Actions 
OpenAPI 
Docker 
pnpm 
React 
Vite 
Vitest 
Playwright 
Zod 
JSX 
Postgres 
Eslint 
OpenAI 
LangChain 
Mastra 
Anthropic 
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