: The API is compatible with 2Captcha/ Anti-Captcha clients – just change the endpoint URL to http://localhost:80 .
GET http://localhost:80/res.php?key=your_api_key&action=get&id=CAPTCHA_ID capmonster pro
response = requests.post( "https://api.capmonster.pro/v1/captcha", headers="Authorization": f"Bearer api_key", files="captcha": open(captcha_image, "rb"), ) : The API is compatible with 2Captcha/ Anti-Captcha
| Setting | Recommended Value | Effect | |---------|------------------|--------| | Threads | CPU cores × 2 | Higher threads = more parallel solves | | Image preprocessing | Auto-deskew, contrast enhancement | Improves OCR accuracy | | Cache solved CAPTCHAs | Enabled (for 60 sec) | Avoids re-solving duplicates | | Memory limit | 2048 MB for heavy usage | Prevents out-of-memory errors | headers="Authorization": f"Bearer api_key"
is a high-performance, automatic CAPTCHA recognition software developed by ZennoLab. Designed for high-speed automation, it allows users to bypass over 25,000 CAPTCHA types —including complex systems like reCAPTCHA v2—at a fraction of the cost of manual solving services. Unlike cloud-based solutions that charge per solution, CapMonster Pro operates as a standalone application on your hardware with a fixed annual license, making it a primary choice for high-volume data scraping and web automation. Quick Facts Developer: ZennoLab Average Solve Speed: 0.87 seconds
It comes pre-loaded with recognition modules for thousands of CAPTCHAs and allows for the training of custom modules.