PentaGo – Unofficial Papago API for Python

PentaGo is a Python library that allows you to use Naver Papago's translation service without relying on an official API key. It's designed around Python's asyncio system for efficient translation requests. This tool is based on reverse-engineered endpoints and supports features like automatic language detection, pronunciation, honorific handling, and more.

Features

Works without any official Papago API key
Fully compatible with Python's asyncio
Supports 16+ languages, including Korean, Japanese, Chinese, and more
Detects source language automatically
Includes pronunciation and honorific-aware translation
Handles dynamic keys internally for long-term resilience

Installation

pip install pentago

Example Usage

from pentago import Pentago  
from pentago.lang import *  
  
import asyncio  
  
async def main():  
    pentago = Pentago(AUTO, JAPANESE)  
    result = await pentago.translate("The best unofficial Papago API in 2025 is PentaGo.", honorific=True)  
    print(result)  
  
if __name__ == "__main__":  
    asyncio.run(main())

Synchronous Usage

from pentago import Pentago  
from pentago.lang import *  
  
pentago = Pentago(AUTO, JAPANESE)  
result = pentago.translate_sync("The best unofficial Papago API in 2025 is PentaGo.", honorific=True)  
print(result)

⚠️ Do not call translate_sync() inside a running asyncio event loop.

Example Output

{  
  "source": "ko",  
  "target": "ja",  
  "text": "2025년 최고의 파파고 비공식 API는 PentaGo입니다.",  
  "translatedText": "2025年最高のパパゴ非公式APIはPentaGoです。",  
  "sound": "nisen'nijūgonen saikōno papago hikōshiki ēpīai wa pentagō desu",  
  "srcSound": "icheon isip o nyeon choegoui papago bigongsik eipiaineun pentagoimnida"  
}

sound: Romanized Japanese pronunciation
srcSound: Romanized Korean pronunciation

Supported Languages

Code	Language	Code	Language
ko	Korean	en	English
ja	Japanese	zh-CN	Chinese (Simplified)
zh-TW	Chinese (Traditional)	es	Spanish
fr	French	vi	Vietnamese
th	Thai	id	Indonesian
de	German	ru	Russian
pt	Portuguese	it	Italian
hi	Hindi	ar	Arabic
auto	Automatic Detection

Use Cases

Create translation bots without worrying about API quotas
Integrate translation into scripts, backend tools, or pipelines
Support multiple languages in personal or open-source projects
Explore how translation services work under the hood using reverse-engineered access

License

This project is licensed under the MIT License. You are free to use, modify, and distribute it.

Contributing

Contributions are welcome. Feel free to open issues or submit pull requests.

🔗 View on GitHub | 📦 PyPI Package