Copyleaks is the integrity layer for your tech stack that helps organizations and individuals understand what’s human-made and original, AI-generated, or manipulated across text, image, audio and video. One API also covers text moderation, with secured webhooks, audit trails, and SDKs in six languages. About five minutes from signup to your first scan result.

​
Start here

Quickstart

Authenticate, submit text, and read your first AI detection result. About five minutes end to end.

API Reference

Every endpoint, payload, and webhook.

SDKs

Official clients for Python, JavaScript, Java, C#, PHP, and Ruby.

​
Guides

Detect Plagiarism in Text

Analyze plagiarism, AI-generated text, and writing quality via API. Supports async calls with webhooks and data masking.

Detect Plagiarism in Code

Scan source code files against the web and your own Private Cloud Hub to find out whether the code appears anywhere else.

Detect AI-Generated Text in Documents

Detect AI-generated text in documents with our easy-to-use API.

Detect Plagiarism in Images

Search the web for unauthorized copies of your images and receive categorized match results in a single API call.

Assess Writing in Documents

Improve writing quality with feedback on grammar, spelling, sentence structure, and word choice using our Grammar Checker API.

Exclude Template Text

Refine analysis by excluding specific sections based on a predefined template.

Citation Checker

Detect and verify the academic and non-academic references in a document, catching fabricated, misattributed, or incorrectly dated citations.

Embed Hosted Web Report

Provides a cloud hosted way to display Copyleaks scan reports.

Install Open-Source Web Report

Integrate and customize Copyleaks’ web report module into your application to display Copyleaks scan reports.

​
Official SDKs

Python

JavaScript

Java

C#

PHP

Ruby

​
Products

Plagiarism Checker API

Detect plagiarism and ensure content originality with comprehensive text comparison.

AI Text Detection API

Identify AI-generated content with advanced machine learning detection capabilities.

AI Image Detection API

Detect AI-generated images with high accuracy and gain insights into their origin.

AI Video Detection API

Detect AI-generated videos with audio and visual track analysis and overall AI ratio scoring.

Grammar Checker API

Enhance writing quality with grammar checking, style suggestions, and language improvements.

Text Moderation API

Moderate content for policy violations, inappropriate material, and harmful language.

​
Use Cases

Academic Integrity

Uphold academic standards by detecting plagiarism and identifying AI-generated content in student submissions.

Content Integrity for Publishers

Ensure originality and prevent copyright infringement before publishing.

User-Generated Content Platforms

Maintain a safe online environment by scanning user-generated content.

Enterprise Content Governance

Implement comprehensive content policies and AI governance across your organization.

Image Plagiarism Detection API

Search the web for unauthorized copies and usages of your images.

​
Features

Data Hubs

Compare documents against private and shared databases to detect similarities and prevent plagiarism.

AI Logic

Understand AI detection results through AI phrases - how much more often each phrase appears in AI writing than in human writing, and where it occurs in the text.

Text Manipulation Detection

Flag techniques that can bypass detection, such as character substitution and formatting tricks.

Hosted Web Reports

Display comprehensive plagiarism and AI detection results with ready-to-use report interfaces.