Breadcrumb is the open-source, self-hosted LLM tracing solution built specifically for developers who demand clear insights into their AI agents' behavior, free from the enterprise complexity of tools like LangFuse or LangSmith. Integrate Breadcrumb into your application with just three lines of code and gain immediate visibility. An embedded LLM intelligently monitors every trace, automatically flagging critical issues such as incorrect tool calls, persistent agent loops, oversized models, and unexpected cost spikes, often before you even realize a problem exists. Furthermore, you can effortlessly query your traces in plain English and receive insightful charts, making debugging and optimization intuitive and efficient.
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Launch Team / Built with
Launch Date:
March 29, 2026