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GeezerVison is showing writehuman.ai — AI Humanizer API: Humanize AI Text at Scale Developer API Humanize AI text |
| Feature | Standard | Premium |
|---|---|---|
| Included words / month | 125K | 400K – 3M Choose your size |
| Words per call | 2,000 | 4,000 – 6,000 6,000 from Premium 800K |
| Outputs per request | 1 | Best of 3 Scored & ranked automatically |
| Rate limits | 40 req/min | 120 – 160 req/min 160 req/min from Premium 800K |
| Enhanced model | ||
| Built-in AI detection | ||
| Detection-aware processing | ||
| Priority processing | ||
| API keys | Up to 5 | Up to 5 |
| Usage dashboard | ||
| All languages |
Buy top-up packs from the Billing tab of your API dashboard while your plan is active. Top-up words never expire and are used after your monthly allowance.
One humanize API call replaces a brittle stack of prompts and post-processing. Send AI-generated text, get back natural, human-sounding writing, with the controls production apps actually need.
One authenticated POST to /v1/humanize. JSON in, humanized JSON out, with no SDK to install and no streaming protocol to learn. It works with any HTTP client in any language.
Humanize AI text in English, Spanish, French, German, Portuguese, Chinese, Japanese, Korean, Arabic and dozens more. Language is detected from your input, or pin it explicitly per request.
Hold your brand voice with professional, academic, blog, casual, creative, scientific, or technical tones. Set the tone per request, with no fine-tuning or training data required.
Premium returns three distinct rewrites per call, each with a human-likeness score from 0 to 1, so your code can automatically select the strongest variation and ship it.
You are billed by input word count, deducted from your monthly allowance first and then from top-up packs that never expire. No per-token math and no surprise overage bills.
Authenticate with revocable Bearer keys (up to five per account). Published limits of 40 requests/min on Standard, 120 on Premium 400K, and 160 on Premium 800K and up make capacity planning straightforward.
The same key unlocks humanization and AI detection. Pair them to humanize a draft and confirm it reads human before it ships. Every endpoint is a plain JSON request against api.writehuman.ai.
/v1/humanizeRewrite AI-generated text so it reads as naturally human. Send your text, choose an optional tone and language, and receive one or more polished variations, billed by input word.
/v1/detectScore any passage for AI authorship with the same engine behind the WriteHuman AI detector. Returns an overall ai, human, or mixed verdict, plus an optional per-sentence breakdown.
/v1/usageRead your remaining words, plan tier, and top-up balance before kicking off a large batch. Fully read-only, so it never deducts from your allowance.
Production-ready from day one. Integrate in minutes, scale without limits.
Create a key from your dashboard. It starts working instantly.
One POST request. Text in, humanized text out.
Ship to production with confidence.
One integration covers your whole audience. The humanizer API detects the input language automatically, or you can set it per request, so global content runs through the same pipeline.
Whether you publish a few posts a week or humanize text for thousands of users, the same humanizer API scales with you. Explore the build patterns for your team:
Add a humanize step to your CMS or publishing queue so every blog draft reads naturally, at a clear cost per 1,000 words.
Run client articles through a single batch endpoint with a publish gate, sized for high-volume content pipelines.
Embed a white-label humanize feature in your own app and meter usage against your billing in hours, not weeks.
Give every department a governed, revocable key and humanize multilingual customer copy at scale with read-only usage for finance.
Each plan includes a monthly word allowance. Words are counted from your input text and deducted from your allowance first, then from any top-up credits. Your monthly allowance resets at the start of each billing cycle.
API access is paid and billed by word, with plans starting in the dashboard. If you want to evaluate humanization quality before integrating, you can try the WriteHuman humanizer for free on the homepage first.
More than 40, including English, Spanish, French, German, Portuguese, Chinese, Japanese, Korean, and Arabic. Language is auto-detected from your input, or you can set it explicitly on each request.
Yes. Alongside POST /v1/humanize, the API exposes POST /v1/detect, which scores any passage for AI authorship and returns an ai, human, or mixed verdict with an optional per-sentence breakdown.
Most humanize requests complete in around 20 seconds. Premium 400K allows 120 requests per minute, and Premium 800K and above allow 160, which is enough to run bulk pipelines and background jobs comfortably.
Every request is authenticated with a Bearer token. You can create up to 5 keys per account, name each one for a different environment, and revoke any key instantly from your dashboard.
Requests that need more words than you have left may be rejected until you add words or your allowance resets. While your API subscription is active, you can purchase top-up packs for additional words, up to a balance of 1,000,000 top-up words. Top-up words do not expire and are consumed after your included monthly allowance runs out, but they can only be used while you have an active API subscription.
Yes, you can change plans at any time, and the change takes effect right away. Upgrades are prorated, so you only pay the difference for the remainder of your billing cycle. Downgrades come with no credit or refund for the unused part of your higher plan, and the words you have already used this cycle count toward the new plan's allowance.
Create an API key in minutes and integrate WriteHuman's humanizer into your apps, workflows, and platforms.