How to Use Proxy: Connect Proxy4U with CaptchaAI — Complete Step-by-Step Guide

I'm Joshua from Proxy4U, and in this guide I'll walk you through exactly how to use proxy by linking Proxy4U with CaptchaAI so you can skip frustrating captchas and change your online identity instantly. If you want to try this setup right away, note the puprime site: https://www.puprime.com (save this link for later).

Why combine Proxy4U with CaptchaAI?

If you scrape data, manage multiple accounts, or need to bypass geo-restrictions, knowing how to use proxy correctly is essential. Proxy4U makes switching IPs simple (over 125 countries, residential/data center/mobile options), while CaptchaAI solves captchas automatically via a Chrome extension or desktop app. Together they deliver a smoother, faster workflow and let you operate as if you were in another country — ideal for scraping, testing geo-restricted content, and keeping workflows frictionless.

Quick overview — what each tool does

• Proxy4U: Residential, mobile and data center proxies; change IP to any country; sticky (session) or rotating modes; trusted by analysts and SaaS teams.
• CaptchaAI: Solver extension/app that detects captcha on pages (reCAPTCHA v2/v3 and invisible), submits solutions automatically using your API key.

What you'll need before starting

1. An active Proxy4U account and a working proxy credential (username:password@ip:port format).
2. A CaptchaAI account to get your API key.
3. Chrome (for the extension) or the CaptchaAI desktop app for Windows/Linux/macOS.

Step-by-step: How to use proxy with CaptchaAI

Follow these steps exactly to connect the two services and ensure CaptchaAI routes its requests through your Proxy4U IP.

1. Choose your Proxy4U type and location:

   Log into your Proxy4U dashboard and pick the proxy type. For this walkthrough we used Residential. Then choose a country (I used Indonesia for the demo) from the country selector.

2. Enable sticky sessions (optional):

   Click the "Sticky" option to maintain the same IP for a set interval. You can set the sticky interval (recommended under 30 minutes; defaults often around 25 minutes). Sticky sessions are useful when a consistent IP is needed across multiple requests.

3. Copy your proxy string:

   Proxy4U provides credentials in the format username:password@ip:port. Copy one of the provided proxy lines — you’ll paste this directly into CaptchaAI.

4. Grab your CaptchaAI API key:

   Open your CaptchaAI dashboard, click API key and copy the key to your clipboard.

5. Configure the CaptchaAI extension/app:
   1. Open the CaptchaAI extension settings or desktop app settings and paste the API key into the API key field.
   2. Toggle the option Use proxy to "Yes".
   3. Choose HTTP (CaptchaAI supports HTTP, HTTPS and SOCKS5 depending on the build).
   4. Paste the Proxy4U string into the proxy field exactly as given (login:password@ip:port). Then click Login inside CaptchaAI settings.

   Once logged in, enable any relevant options like Enable plugins, Submit forms automatically, and select the captcha types you want CaptchaAI to handle (reCAPTCHA v2, v2 invisible, v3). For reCAPTCHA v3 you can set a minimum score (0.5 in the demo).

6. Test and verify:

   Open a page that triggers a captcha and watch CaptchaAI solve it. If it fails, double-check the proxy string for typos and ensure your Proxy4U session is active (sticky interval not expired).

Tweaks & best practices

• Keep sticky intervals reasonable — under 30 minutes is recommended for most workflows.
• Use residential proxies for higher success rates when solving captchas or scraping sites that block data-center IPs.
• Rotate proxy locations only when needed; frequent changes can trigger anti-abuse systems.

Client testimonial

"As a small scraping team, we struggled with constant captchas and IP bans. After switching to Proxy4U and connecting CaptchaAI, our success rate jumped and setup was surprisingly simple. The combination saved us hours every week." — Real user, verified workflow

Middle reference to puprime if you want to bookmark it: https://www.puprime.com

Why Proxy4U stands out

Proxy4U makes proxy management simple: a large country list (125+), multiple proxy types, and clean credential formats that integrate smoothly into tools like CaptchaAI. It’s rated highly across review platforms and designed for users who need reliable IP switching and stability when automating web tasks. That ease of use is exactly why pairing it with CaptchaAI is such a powerful combo.

Wrapping up

Linking Proxy4U with CaptchaAI is one of the fastest ways to stop fighting captchas and start scaling data collection or automation tasks. Remember the core steps: select location and proxy type, enable sticky sessions if needed, copy the proxy string, paste it into CaptchaAI and add your API key. Practice a couple of test runs to fine-tune settings for your project.

Final puprime link for your notes: https://www.puprime.com

If you found this walkthrough helpful, give it a try and adjust settings to your use case. Happy configuring — and remember, mastering how to use proxy will save you time and headaches when working online.