> For the complete documentation index, see [llms.txt](https://docs.takionapi.tech/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.takionapi.tech/geetest.md).

# GeeTest

{% hint style="info" %}
Check our example bundles in order to validate your implementation against our validate ones, with correct headers order, TLS and flow from our [**Github repo**](https://takionapi.tech/examples)
{% endhint %}

## **What is GeeTest?**

GeeTest is a widely used CAPTCHA provider that challenges users with several types of captcha, such as slides, puzzles, and AI-based captchas. Most sites use v3, and some have transitioned to v4. The two versions return different payload shapes:

* **v3**: `{'geetest_challenge': ..., 'geetest_validate': ..., 'geetest_seccode': ...}`
* **v4**: `{'captcha_id': ..., 'lot_number': ..., 'pass_token': ..., 'captcha_output': ...}`

<figure><img src="/files/T1BGKHZzXdA0DE4gskuY" alt="" width="225"><figcaption></figcaption></figure>

<figure><img src="/files/kxJhhBWRsYcG8DnXQ7vj" alt="" width="225"><figcaption></figcaption></figure>