Humanizer API
Humanize AI-generated text at scale with one REST call. The same engine behind ProofreaderPro's humanizer, available for your own product. JSON in, JSON out, 60+ languages.
Quickstart
Send your text with an Authorization: Bearer header. The humanizer returns the rewritten text as outputText.
curl https://proofreaderpro.ai/api/humanizer/v1/humanize \ -H "Authorization: Bearer YOUR_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "text": "The results demonstrate a statistically significant effect...", "writingMode": "Academic", "intensityScalar": 0.5 }'{ "outputText": "The findings point to a clear, statistically reliable effect...", "metrics": { /* readability + length stats */ }}60+ languages
Humanize text in English and 60+ other languages from the same endpoint, no separate models to wire up.
Writing modes + intensity
Choose Academic, Corporate, Creative or Blog/SEO, and dial the strength with a single intensity value.
One simple call
A single POST returns the rewritten text as JSON. Pass a requestId and retries are idempotent.
Endpoints
Authorization: Bearer header./api/humanizer/v1/humanize/api/humanizer/v1/balanceText passes are validated for 50 to 1,000 words per request. Larger documents are split into multiple calls.
Request API access
Access is granted per project. Tell us what you're building and we'll send your API keys and full documentation.