CPF Service is a free tool that queries Brazilian CPF (Cadastro de Pessoas Físicas) registration status via Receita Federal (RF) endpoints. It's open-source and intended for developers or automation setups.

Yes, the software is completely free and open-source, available at GitHub.

You need Python installed on your system. After cloning the repository, you can run it via the command line using the included scripts.

No. The software requires solving an image CAPTCHA (from Receita Federal) for each request. Out of the box, it does not include any automatic CAPTCHA solving capability.

You can integrate CaptchaAI to automatically solve the CAPTCHA image via API, enabling full automation of the CPF query process.

Because Receita Federal uses CAPTCHA to prevent bots, CPF Service cannot work fully unattended without solving the image. CaptchaAI solves these CAPTCHA images reliably via API and supports direct Base64 image solving through https://ocr.captchaai.com/in.php.

Without a CAPTCHA-solving service, every request to check CPF status will pause until you manually input the CAPTCHA. This breaks any kind of batch automation or script-based usage.

It uses image-based CAPTCHA (alphanumeric distorted text). These are typically solvable using services like CaptchaAI with the method=base64 parameter.

Yes. CaptchaAI eliminates the need for browser rendering, mouse movement emulation, or delay scripting. It returns fast and accurate results with simple HTTP POST requests.

You need to convert the image to Base64, then send it to CaptchaAI’s /in.php endpoint with these parameters:

• key=YOUR_API_KEY
   
• method=base64
   
• body=BASE64_IMAGE
   

json=1 (if you want JSON response)