Web frontendDeveloper toolsby frei-l
trae
A local viewer for AI app traces from OpenTelemetry and Langfuse: model calls, tokens and cost.
About
A trace viewer for AI apps that runs on your machine, with no account, cloud or Docker. It receives OpenTelemetry traces on a local port, also from Langfuse SDKs, and shows model calls with their messages, tool calls, tokens, cost and time to first token on a span tree with a waterfall. Built with MyGo, its HTML, CSS and JavaScript frontend runs in the system webview.