Errorcore

About the startup

Errorcore helps engineering teams understand why production software failed without spending hours reconstructing incidents from logs, traces, and stack traces. For Node.js applications, Errorcore captures bounded runtime evidence at the moment of failure, including local state, async context, request metadata, recent database and HTTP I/O, and the execution path leading to the exception. Unlike traditional observability tools that primarily show where and when something went wrong, Errorcore preserves the application state that can explain why it happened. Developers can use that evidence to investigate hard-to-reproduce failures faster, while AI debugging agents get structured runtime context instead of having to infer the root cause from thousands of lines of telemetry. Errorcore is built for production with bounded capture, privacy controls, sensitive-data scrubbing, and low-overhead instrumentation. Stack traces tell you where. Errorcore gives you the evidence behind why.