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Humanization API

Integrate the most powerful text humanizer directly into your product. One API call to transform AI-generated text into human writing.

98%

Quillbot

95%

ZeroGPT

94%

Originality

93%

Turnitin

89%

GPTZero

Start building in minutes

01

Buy words

Purchase a word pack from the developer dashboard. No subscription, no commitment. Words never expire.

02

Create an API key

Generate a key from the dashboard. Use it as a Bearer token in your requests.

03

Humanize text

Send a POST request with your text. Get back humanized output that passes AI detection.

Built for production

Everything you need to ship humanization as a feature in your product.

Stealth

Powered by Ghost-1, our proprietary humanization engine. Undetectable on the toughest AI detectors.

100+ languages

Automatic language detection. Send text in any language, get humanized output back.

Fast and reliable

Average response around 7 seconds. If a request fails, your words are refunded automatically.

Simple billing

Pay per word. No subscriptions. Buy words, share them across all keys. Words never expire.

What developers are building

From browser extensions to enterprise content pipelines.

Content platforms

Humanize AI-generated drafts before publishing. Integrate into your CMS or editorial workflow.

Writing tools

Add humanization as a built-in feature. Give your users one-click access to stealth output.

Browser extensions

Humanize text on any website. Build the extension, we handle the processing.

Internal automation

Process bulk content through your pipeline. Batch humanize thousands of documents at scale.

Simple pricing

Pay per word. No subscriptions, no monthly fees, no hidden costs.

250k

words

$50

$0.20 / 1k

1M

words

$180

$0.18 / 1k

10M

words

$1,500

$0.15 / 1k

Words never expire. Shared across all API keys. Volume discounts on larger packs.

Frequently asked questions

How does billing work?

You buy word packs upfront. Each API request deducts the number of input words from your balance. Words are shared across all your API keys and never expire.

What happens if a request fails?

If the humanization process fails for any reason, the words reserved for that request are automatically refunded to your balance.

How many API keys can I create?

Up to 5 active keys per account. Each key has its own rate limit but shares your account's word balance.

What languages are supported?

100+ languages with automatic detection. You don't need to specify the language. The API detects it from the input text.

Is there a rate limit?

Default is 10 requests per minute per key and 20 per minute per IP. Contact us for higher limits.

Do I need a subscription?

No. The API uses one-time word purchases. Buy what you need, use it whenever. No recurring charges.

Start building today

Get your API key and make your first request in under 2 minutes.