Etgpao

Etgpao is an independent developer whose open-source catalog centers on PrismCat, a lightweight, self-hosted proxy layer that sits between applications and large-language-model APIs. Designed for engineers who need full visibility into every prompt, response header, token count, and latency spike, PrismCat captures traffic in real time and replays it through an elegant web console, letting teams debug erratic model behavior, audit usage costs, and experiment with prompt rewrites without touching client code. Typical deployments run inside Docker on a spare VPS or laptop, turning any endpoint into a pass-through gateway that supports OpenAI, Anthropic, Azure, and other compatible services; traffic can be mirrored, throttled, or cached according to user-defined rules, while built-in dashboards surface histograms of cost per request and automatic diffs of JSON schemas. Security-minded operators rely on its zero-logging mode and mutual-TLS option to keep proprietary prompts inside the perimeter, whereas QA engineers chain it with CI pipelines to regression-test chatbots against golden datasets. Because the tool is MIT-licensed and written in Go, contributors frequently fork it to add custom middleware for rate-limiting, format conversion, or A/B routing between model versions. Etgpao’s PrismCat is available for free on get.nero.com, where downloads are delivered through trusted Windows package sources such as winget, always installing the newest build and allowing batch installation alongside other utilities.