Humanizer PRO MCP Server

Transform AI-generated text into natural, human-sounding writing directly from Claude or ChatGPT.

Contents

1. Overview
2. Features
3. Tools Reference
4. Setup Instructions
5. Authentication
6. Usage Examples
7. Subscription Plans
8. Support & Privacy

1. Overview

Humanizer PRO is an MCP (Model Context Protocol) server that lets you rewrite AI-generated text so it reads naturally, passes AI detection tools, and matches your intended tone — all without leaving Claude or ChatGPT. Whether you are a student refining an essay, a marketer polishing blog posts, or a professional editing reports, Humanizer PRO processes your text through advanced rewriting models and returns clean, human-sounding output in seconds.

The server exposes four tools covering the full text-enhancement workflow: humanization, naturalness analysis, usage tracking, and plan management. Every tool call is authenticated via OAuth 2.1 with PKCE, and usage is tracked against your word balance so you always know where you stand.

2. Features

Three Rewriting Modes — Stealth (general-purpose, bypasses GPTZero & Copyleaks), Academic (scholarly tone, effective against Turnitin), and SEO (optimized for marketing and blog content).
AI Detection Scanning — Analyze any text to get a naturalness score showing how human-like it reads, before or after humanization.
Real-Time Word Balance — Check your remaining word credits and current plan at any time.
Subscription Plan Info — View all available plans with word limits, pricing, and features to choose the best fit.
Secure OAuth 2.1 + PKCE Authentication — Uses your existing Humanizer PRO account; supports Google Sign-In and email/password.
Anonymous Access — Try the service with a 500-word limit before signing up.
Rate Limiting — 30 requests per minute per IP to ensure fair usage and service reliability.

3. Tools Reference

humanize_text writes / external API

Rewrites text to sound more natural and authentic. Deducts words from your balance.

Parameter	Type	Required	Description
`text`	string	Yes	The text to rewrite and humanize
`mode`	enum	No (default: stealth)	`stealth`, `academic`, or `seo`
`style`	enum	No	`creative`, `journalistic`, or `professional` (stealth mode only)

Returns: Humanized text, word count, remaining balance, and mode used.

scan_ai_detection read-only

Analyzes text to evaluate how natural and human-like it sounds. Does not modify text or deduct words.

Parameter	Type	Required	Description
`text`	string	Yes	The text to analyze for naturalness

Returns: Naturalness score (0–100), assessment label, and recommendation.

check_word_balance read-only

Returns your current word balance, plan name, and usage period. No parameters required.

Returns: Words remaining, words used, plan name, and reset date.

get_subscription_plans read-only

Lists all available subscription plans with word limits and features. No parameters required.

Returns: Array of plans with names, word limits, and feature lists.

4. Setup Instructions

Claude.ai (Web)

Open claude.ai and navigate to your settings or the MCP connectors section.
Search for Humanizer PRO in the connector directory, or add a custom MCP server with the URL: https://texthumanizer.pro/mcp
Click Connect. You will be redirected to sign in with your Humanizer PRO account (Google or email/password).
After authenticating, Claude will have access to all four Humanizer PRO tools.
Start using it by typing prompts like “Humanize this text” or “Check my word balance.”

Claude Desktop

Open Claude Desktop and go to Settings → MCP Servers.
Add a new server with the URL: https://texthumanizer.pro/mcp
Complete the OAuth sign-in flow when prompted.
The four Humanizer PRO tools will appear in your tool list.

Claude Code (CLI)

Run: claude mcp add humanizer-pro https://texthumanizer.pro/mcp
Follow the OAuth authentication prompt in your browser.
Use the tools in your Claude Code sessions.

5. Authentication

Humanizer PRO uses OAuth 2.1 with PKCE (S256) for secure authentication. When you connect from Claude, the following flow occurs:

Claude initiates an authorization request with a code challenge.
You are redirected to the Humanizer PRO sign-in page where you can authenticate with Google or email/password.
After successful authentication, an authorization code is issued and exchanged for access and refresh tokens.
Tokens are securely stored and automatically refreshed when they expire.

Account requirements: A free Humanizer PRO account is all you need. You can create one at texthumanizer.pro or sign up during the OAuth flow. Free accounts include 300 words to get started.

Permissions: The connector requests access to humanize text, scan text, check your word balance, and view subscription plans. It does not access any data outside of Humanizer PRO.

6. Usage Examples

Example 1: Humanize an Essay (Stealth Mode)

User prompt: “Humanize this text in stealth mode: Artificial intelligence has fundamentally transformed the landscape of modern technology. The rapid advancement of machine learning algorithms has enabled unprecedented capabilities in data analysis and pattern recognition.”

What happens:

Claude calls the humanize_text tool with the full text and mode: "stealth".
The server sends the text to the Rephrasy humanization API.
The rewritten text is returned along with word count and remaining balance.

Expected output:

AI has really changed the game when it comes to modern tech.
The way machine learning has grown has opened up some amazing
possibilities for analyzing data and spotting patterns.

Words used: 32 | Remaining balance: 268 | Mode: stealth

Example 2: Scan Text for AI Detection

User prompt: “Scan this paragraph to see if it sounds like AI wrote it: The implementation of sustainable practices within corporate environments necessitates a comprehensive understanding of environmental metrics and stakeholder engagement protocols.”

What happens:

Claude calls the scan_ai_detection tool with the provided text.
The server analyzes the text for naturalness markers.
A score from 0 to 100 is returned (higher means more human-like).

Expected output:

Naturalness Score: 28/100
Assessment: Likely AI-generated
Recommendation: This text shows strong AI patterns.
Consider humanizing it for a more natural tone.

Example 3: Check Word Balance

User prompt: “How many words do I have left?”

What happens:

Claude calls the check_word_balance tool (no parameters needed).
The server retrieves your current plan and usage data.
Your remaining balance, plan name, and reset date are returned.

Expected output:

Plan: Weekly Pro
Words remaining: 5,420 / 7,000
Period resets: February 22, 2026

Example 4: Humanize Academic Content

User prompt: “Rewrite this in academic mode: The study demonstrates that renewable energy sources significantly reduce carbon emissions compared to fossil fuels, presenting a viable pathway toward achieving net-zero targets by 2050.”

What happens:

Claude calls humanize_text with mode: "academic".
The text is processed through the academic rewriting model optimized for scholarly tone.
The result maintains academic rigor while sounding naturally written.

Expected output:

This research shows that switching to renewable energy can
cut carbon emissions by a wide margin compared to fossil fuels.
It points to a practical path for reaching net-zero goals by 2050.

Words used: 30 | Remaining balance: 5,390 | Mode: academic

7. Subscription Plans

Plan	Words	Period	Features
Free	300	request	All 3 modes, AI scanning
7-Day Access	7,000	7 days	All 3 modes, AI scanning, history, priority support
Monthly	40,000	month	All 3 modes, AI scanning, history, priority support
Pro Annual	100,000	month	All 3 modes, AI scanning, history, priority support

Word bundles are also available for one-time purchases if you need additional credits without changing your plan.

8. Support & Privacy

Support: For questions, issues, or feedback, contact us at support@texthumanizer.pro. We respond within 24 hours on business days.

Privacy Policy: https://texthumanizer.pro/privacy

Data Processing Agreement: https://texthumanizer.pro/dpa

Our privacy policy covers data collection, usage, third-party sharing, GDPR rights, and data retention. Text submitted for humanization is processed by the Rephrasy API and is not stored after processing is complete.

Terms of Service: By using Humanizer PRO, you agree to use the service responsibly and in compliance with applicable laws. The service is intended for legitimate text improvement purposes.