Naturalization API for AI-generated content

Turn AI drafts into text that reads human — or slips past detectors. One API, two modes, honest about the trade-off.

🎯 Two Modes

Natural: rewrites to read like a person wrote it.
Undetectable: lowers AI-detector scores via targeted paraphrase.

🔒 Fact-Safe

Numbers, names, entities, and claims are preserved by hard gates. Meaning verified via NLI entailment.

⚡ Simple API

One endpoint. POST /v1/naturalize with text + preset. Get the rewrite + metadata in seconds.

💡 Honest Labels

We tell you exactly what each mode does — and what it costs. No "makes it undetectable AND natural" false promises.

Get started in 3 lines

# Python import requests resp = requests.post("https://api.thinkingnative.com/v1/naturalize", json={ "text": "Moreover, our team leveraged cutting-edge technology.", "preset": "naturalness" # or "undetectable" }, headers={"Authorization": "Bearer YOUR_API_KEY"}) print(resp.json()["text"]) # → "We used modern tech to build this."

How it works

1

Send your AI draft

POST your text with a preset (natural or undetectable). Include preserve terms if needed.

2

ThinkingNative processes it

The engine rewrites for your chosen goal — natural voice or detector evasion — while preserving facts and meaning.

3

Get the rewrite

Receive the naturalized text + metadata (engine, stats, warnings). Use it directly in your pipeline.

Ready to build?

Substantially cheaper than competitors. Transparent per-word pricing.

See pricing →