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Explore our APIs for integration
API Pricing Plans
Start at $29/month or save more with our $49/month plan. Need more words? Keep going with pay-as-you-go.
Starter
Full Humanizer API access
Access to our Basic, Stealth, Undetectable Humanizer Models
Score as human on 99% of detectors
Access to Undetectable AI other APIs: detection of text, image, video, audio and writing style replicator
Pay-as-you-go at $0.40 / 1K after your allowance
Standard rate limits
Email support
Growth
Full Humanizer API access
Access to our Basic, Stealth, Undetectable Humanizer Models
Score as human on 99% of detectors
Access to Undetectable AI other APIs: detection of text, image, video, audio and writing style replicator
Pay-as-you-go at $0.20 / 1K after your allowance
Higher rate limits
Priority support
Need to humanize at scale?
Get custom volume limits, dedicated support, and pricing built for high-volume API usage.
Top Rated Humanizer in GPTZero's 2026 research
“One of the biggest AI humanizers on the market”
Our Humanization API powers the market
Your Humanizer API comes with more
Start with our Humanizer API and get access to additional APIs for AI detection, image, audio, video, and writing style.
Undetectable AI Humanizer APIWe have an easy-to-use API designed to integrate quickly and effortlessly into your solution. Get started today by visiting our documentation.
Undetectable Check for AI APIWe have an easy-to-use API designed to integrate quickly and effortlessly into your solution. Get started today by visiting our documentation.
Undetectable AI Image Detector APIWe have an easy-to-use API designed to integrate quickly and effortlessly into your solution. Get started today by visiting our documentation.
Undetectable AI Writing Style ReplicatorOur easy-to-use API helps you integrate our Writing Style Replicator quickly and easily so not only can you get your voice out to the world, but you can do so in the exact style you were hoping for.
Undetectable AI Audio Detector API
Undetectable AI Video Detector APIWhether you’re building content moderation tools, media verification systems, or research platforms, our API gives you reliable, lightning-fast results—so you can focus on what matters most: truth in motion.
Zapier No-Code IntegrationEmbed Our Widget On Your Website
Undetectable AI presents its new embeddable widget, which you can directly integrate into your website. Use this on any website, such as WordPress, Squarespace, Webflow, and more!
See live preview
How to Embed the Widget
Create an account at undetectable.ai/earn to get your unique affiliate link.
Copy the widget embed code to your clipboard.
Replace the placeholder URL in the code with your personal affiliate link.
Paste the code into your site, using a Custom HTML block if you are on WordPress.
Sit back and earn a commission for every referral generated through your widget! 💰
<div id="uai-widget" data-affiliate-link="https://undetectable.ai/?_by=hi4km">
<script>
var js = document.createElement("script");
js.async = true;
js.src = "https://widget.undetectable.ai/js/widget-loader.js?t="+Date.now();
document.getElementsByTagName("head")[0].appendChild(js);
</script>
</div>Frequently Asked Questions
We've got answers. Explore our Frequently Asked Questions to learn more about how Undetectable AI works, our guarantee, and how we can assist your content creation journey.
Yes! When you create a new account, you receive 250 word credits that can be directly used through the API.
The API endpoints allow you to access the UD functionality through your account. This means the word credits are deducted directly from your account, and the cost is identical to the web platform. You can visit your settings to see how many word credits you currently have, and the pricing page for more information on cost.
While there are no maximum usage limits, by default there is a rate limit of 3 requests per second, per IP address. If you need to process higher volumes of content, reach out to us at contact@undetectable.ai to raise your API limit.
We conform to the REST standard, which means all endpoints can be access through web requests. Check our documentation for more information specific to your use case.
Webhook integration and web callbacks are available to customers upon request. If you're looking to process high volumes of content and require webhook integration, reach out to us at contact@undetectable.ai.
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