429 too many requests with clean npm install on free plan

I got rate-limited for trying to use the cli to install all packages from my package.json:

⠏ Looking up data for 760 packages(node:67363) MaxListenersExceededWarning: Possible EventTarget memory leak detected. 31 abort listeners added to [AbortSignal]. MaxListeners is 30. Use events.setMaxListeners() to increase limit
(Use `node --trace-warnings ...` to show where the warning was created)
⠹ npm error Socket API POST request failed (429): Too Many Requests
npm error A complete log of this run can be found in: /path/to/.npm/_logs/2025-11-28T13_17_29_504Z-debug-0.log

Seems very unusual that such a basic npm feature doesn't work. I'm on a free plan, could that be it?

Comienza reproduciendo la instalación de la CLI con un package.json que contenga muchos paquetes e inspecciona la ruta de la solicitud asociada al Socket API POST 429 informado. Compara el comportamiento con una instalación más pequeña y la salida de advertencia; se considera terminado cuando una instalación limpia del conjunto de paquetes informado no alcanza inesperadamente los límites de tasa en el plan gratuito.