Breadcrumb

Breadcrumb

Open-source LLM tracing for agent visibility

Breadcrumb serves as the 'Plausible' for LLM tracing, offering a self-hosted, open-source solution specifically designed for developers. It empowers you to gain deep insights into your AI agents' behavior without the complexity and overhead often associated with enterprise-grade tools like LangFuse or LangSmith. With just three lines of code, your application can be fully traced. An integrated LLM intelligently monitors every trace, automatically flagging critical issues such as incorrect tool calls, looping agents, oversized models, and unexpected cost spikes, often before you even detect a problem. Furthermore, you can effortlessly query your traces in plain English and receive insightful charts and visualizations in response.

Categories:

Open Source

Launch Team / Built with

JK

Launch Date:

March 29, 2026

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