# Glassbrain > Instant AI fix engine for AI-powered applications Glassbrain is a visual debugging tool for AI applications. It captures every step of your AI's reasoning chain and shows it as an interactive visual tree. Developers can click any node, see what went wrong, test fixes with time-travel replay, and copy paste-ready code into their project. ## Key Features - Visual trace tree showing every AI decision - Time-travel replay to test fixes without redeploying - AI-powered fix suggestions with code snippets - Before/after diff view with metrics - JavaScript and Python SDKs - Works with OpenAI, Anthropic, LangChain, LlamaIndex ## Links - Website: https://glassbrain.dev - Docs: https://glassbrain.dev/docs - Pricing: https://glassbrain.dev/pricing - Blog: https://glassbrain.dev/blog - JavaScript SDK: https://www.npmjs.com/package/glassbrain-js - Python SDK: https://pypi.org/project/glassbrain