This task can be performed using NovaWire
NovaWire — Fast, native HTTP/HTTPS debugging proxy for Windows. From capture to OpenAPI contract in one window.
Best product for this task
NovaWire
dev-tools
NovaWire is a native HTTP/HTTPS debugging proxy for Windows that captures real network traffic, lets you inspect and rewrite requests and responses, replay calls, and generate OpenAPI specs directly from live exchanges.
mitm proxyhttp sniffertraffic interceptordebugging proxynetwork inspectionapi testinghttp analysisdeveloper utilities

What to expect from an ideal product
- NovaWire captures live HTTP and HTTPS traffic on Windows and converts real requests into a valid OpenAPI spec without any manual writing or guessing.
- No need to document APIs by hand: NovaWire watches actual network exchanges and builds the contract from what your app truly sends and receives.
- Works as a local debugging proxy, so you intercept traffic from any Windows app, browser, or service and turn those calls into structured API definitions instantly.
- If your team inherits an undocumented API, running it through NovaWire gives you a working OpenAPI spec based on real behavior, not assumptions.
- NovaWire keeps capture, inspection, replay, and spec generation inside one native Windows window, cutting out the multi-tool setup most developers deal with today.
