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NexCaptcha

Captcha type · Ai Securius

atbCAPTCHA solver API

atbCAPTCHA slider and click challenges solved from the app id and API server, returning the token the verification step expects.

Also searched asatb captchaaisecurius captchaappId apiServer captchaatbCAPTCHA slidercap.aisecurius.com

Price
$2.18
per 1,000
Token acceptance
99.0%
Median solve
5.2s
p95 solve
11.9s

[ 01 ]What it looks like

A compact slide-to-complete or character-click widget gating login and withdrawal forms.

[ 02 ]Why it is hard

atbCAPTCHA is deployed per customer, so there is no fixed endpoint: both an appId and an apiServer host have to be read off the page, and operators routinely move apiServer onto their own domain. The challenge itself is ordinary slider and character-click work; the integration is what breaks. Its deployment base is gaming, payment and betting sites, which tend to run aggressive IP filtering in front of the widget.

[ 03 ]How we solve it

Send appId and apiServer with the task and the pool talks to whichever host the site is actually using, self-hosted ones included. Slider offset and character order run on the same models as the generic slider and click types, which is why this type sits a tier below the Chinese vendor captchas on price. No proxy is needed for the token itself.

[ 02 ]Solve it in five lines

Solve it in five lines

Post the task, get the token. Our SDKs collapse creation, polling and retries into one call.

atb-captcha.sh
curl -s https://api.nexcaptcha.net/createTask \
  -H "Content-Type: application/json" \
  -d '{
    "clientKey": "YOUR_API_KEY",
    "task": {
      "type": "AtbCaptchaTaskProxyless",
      "websiteURL": "...",
      "appId": "...",
      "apiServer": "..."
    }
  }'

Required parameters

API task type
AtbCaptchaTaskProxyless
websiteURL
required
appId
required
apiServer
required
Difficulty
Moderate

[ 05 ]Questions about this one

Questions about this one

atbCAPTCHA is self-hosted, so the script origin differs per site. apiServer is the host the page loads the widget from, visible in the network tab as the origin of the captcha script, often something like cap.aisecurius.com or a subdomain of the site itself. Without it the pool has no endpoint to fetch the challenge from.

2.18 USD per 1,000 successful solves against 4.49 for the Chinese vendor captchas. The underlying work is generic slider offset and character ordering, which the existing models already cover; there is no per-vendor behavioural model to maintain.

Median 5.2 seconds, 95th percentile 11.9 seconds, 99.0% success on live traffic. Character-click rounds sit at the slower end because the order has to be returned as a coordinate sequence.

Not for the token. AtbCaptchaTaskProxyless is the normal request. The sites that deploy this type often filter by address at the page level, so if your requests are being blocked before the widget loads, that is a proxy problem in your scraper rather than a captcha problem.

Solve your first thousand on us.

Create a key, paste it into the sample above, and watch a real token come back. No card, no sales call.