How CapMonster Cloud Helps Solve CAPTCHAs in Automation with Proxies

CapMonster

Automation follows a set scenario: the script opens a page, finds the elements it needs and performs the required actions. A CAPTCHA breaks that process by adding a check an ordinary script can't pass on its own.

The problem is most visible in tasks that run regularly and at scale: collecting data across many pages, running browser scripts in Selenium or Playwright, bulk form processing, automated testing, working with several profiles at once, and routine operations run on a schedule.

 

You can't handle these checks manually: every CAPTCHA stops the scenario and requires a person to step in, and once there are a lot of tasks, automation stops being automation. That's why CAPTCHA handling is moved to a separate service — so the work no longer depends on someone being there.

What CapMonster Cloud Is

CapMonster Cloud is a cloud service that automatically recognizes and solves CAPTCHAs. There's nothing to install: the service runs on its own side, and you call it from your script or browser.

Which CAPTCHAs It Works With

The service supports more than 20 CAPTCHA types and variants. Among the common ones:

  • reCAPTCHA v2 and v3, including Enterprise;
  • Cloudflare Turnstile and Cloudflare Challenge;
  • GeeTest;
  • DataDome;
  • Amazon (AWS WAF);
  • Imperva (Incapsula), FunCaptcha, MTCaptcha and other types.

The sets differ between the API and the extension: the extension covers the common options, while the full list is available through the API.

How It Works

The logic is simple:

  1. The script sees a CAPTCHA on the page.
  2. It takes the required parameters from it.
  3. It sends the task to CapMonster Cloud.
  4. The service solves it.
  5. The script receives the finished answer.
  6. The answer is inserted where the site expects it.
  7. The scenario continues.

The result the service returns is usually a token: a string the site expects to receive together with the form or the request.

You don't have to write everything from scratch — the service provides ready-made libraries for popular languages.

API or Extension: Which to Choose

CapMonster Cloud has extensions for Chrome and Firefox. They solve CAPTCHAs right in the browser, with no integration of your own: in the settings you specify the API key, the CAPTCHA types you need and the proxy the extension works through.

This option is convenient when the work happens in an antidetect browser or a ready-made tool and part of the actions are done manually. The barrier to entry is minimal — no programming required.

The API is the better choice when your own code drives the scenario. You get more control: you can handle the CAPTCHA at the exact moment you need it, deal with errors separately and build the solution into your overall logic.

One doesn't rule out the other: some profiles can run through the extension while the main scenario runs through the API.

How Proxies and CapMonster Cloud Work Together

In a real setup, the proxy and the CAPTCHA-solving service complement each other — each covers its own part of the job.

A proxy is about the network: which IP the connection goes through, which country it comes from, and how to separate the connections of different working profiles.

CapMonster Cloud is about the CAPTCHA: accepting the task, solving it and returning the result to the scenario.

The proxy determines where the site sees the connection coming from, while CapMonster Cloud steps in once the site has shown a check.

One important clarification: your own proxy isn't required for the service to work. By default, CapMonster Cloud uses built-in proxies, and for most sites that's enough — you can get started without any infrastructure of your own. But the service picks them itself: you don't choose the region and you don't tie a specific IP to a specific profile. Your own proxy gives you that control, and it's added when the scenario is sensitive to the IP.

Scenarios Where It's Needed

The service is useful wherever CAPTCHAs appear not as a one-off, but as part of a regular process:

  • Scraping and data collection — a CAPTCHA appears in the middle of a run, and the run still has to be finished.
  • Your own scripts — CAPTCHA handling is built into the code and called when needed.
  • Multiple browser profiles — each one calls the service on its own.
  • Regular repetitive operations — the scenario runs on a schedule.
  • Several working environments — each with its own connection and settings.

When You Need Your Own Proxy

In most cases CapMonster Cloud uses its own built-in proxies, so there's no need to connect your own address separately. You need your own proxy if the site doesn't accept a result obtained through the built-in infrastructure, or if it restricts access to that infrastructure.

Another reason is when it's important to control the IP and its geolocation. For example, the automation works with a site that takes the connection region into account, and the task requires an IP from a specific country. In that case you can use your own proxy with the geolocation you need.

For automation, two types are used most often:

  • Residential — addresses from ISP networks, with rotation. A good fit when you need a "home" IP that changes between sessions.
  • ISP — static addresses. A good fit when the IP has to stay the same for as long as the profile is running.

Datacenter proxies are used when there are no particular requirements for the address; mobile ones when you need a carrier IP.

The proxy type doesn't cancel out the CAPTCHA and doesn't remove restrictions — it's only responsible for the network side.

Where to Start

You pay for results: funds are only deducted for successfully solved CAPTCHAs. New users get a 20% bonus on their first balance top-up.

The easiest way to start is to take a single scenario where automation runs into a CAPTCHA and connect the CapMonster Cloud API or extension to it. That will immediately show which CAPTCHA types come up in your task and whether you need a proxy of your own.