Introduction

Wispr Proxyflow is an educational MITM helper for Wispr Flow (macOS). It runs a local proxy that intercepts the app's subscription API response and rewrites it so the app shows the Pro plan (plan: FLOW_PRO_MONTHLY, status: active).

What it does

Starts a local mitmproxy on 127.0.0.1:8080.
Rewrites responses to /api/v1/payment/subscription — when the body contains the marker key (total_trial_days), it is patched (plan, status, credits, trial days, …).
Relaunches Wispr Flow with --proxy-server=http://127.0.0.1:8080 --ignore-certificate-errors so its traffic goes through the proxy.

What it does not do

It does not modify the Wispr Flow app itself.
It does not send anything to Wispr's servers on your behalf.
It requires the original Wispr Flow app to be installed.
It only changes what the app displays — unrelated responses, non-JSON payloads and other hosts pass through untouched.

Requirements

macOS (Apple Silicon)
Python 3.11+ (for running the script) or the prebuilt .app / .dmg
The original Wispr Flow app at /Applications/Wispr Flow.app

Table of Contents

What it does
What it does not do
Requirements