# transferit-py: reconstructing transfer.it upload and download exchanges

> transferit-py reconstructs transfer.it file-transfer exchanges from its public web client and implements Python library and CLI clients. Its research maps MEGA-backed API commands, ephemeral sessions, AES-128-CTR encryption with CBC-MAC and WebSocket upload framing. The client uploads folders and streams decrypted downloads.

- Type: Case study
- Targets: Protocol · Website
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/viperadnan-git/transferit-py>
- Primary source: <https://github.com/viperadnan-git/transferit-py/blob/4080e1a2c36d12160c195abcc62b75651bbce006/docs/REVERSE_ENGINEERING.md>
- Catalog page: <https://awesomerea.org/resources/transferit-py-case/>
- Record JSON: <https://awesomerea.org/resources/transferit-py-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/transferit-py-case/index.md)

## Requirements & limits

- **Prerequisites:** Python 3.11 or newer is required.
- **Scope:** The client relies on transfer.it and MEGA service endpoints described in its protocol notes.
- **License:** MIT license.

## Primary sources

1. <https://github.com/viperadnan-git/transferit-py/blob/4080e1a2c36d12160c195abcc62b75651bbce006/docs/REVERSE_ENGINEERING.md>
2. <https://github.com/viperadnan-git/transferit-py/blob/4080e1a2c36d12160c195abcc62b75651bbce006/README.md>

## More in Websites

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.