Copyleaks Intros Grammar Checker API

As it continues to add more artificial intelligence features to improve writing tasks, AI content and plagiarism detection company Copyleaks has introduced a new tool — Grammar Checker API — as part of its platform to assist personalized learning and administrative tasks in education.

Grammar Checker API will provide suggestions for sentence structure, mechanics, word choice, spelling, and more, the company said. This tool combines with Copyleaks' AI Content and Plagiarism detectors to assist users to create original, error-free writing. The new grammar checker integrates into native platforms with a single line of code, the company added.

Key features include:

  • Personal Proofreader — flags run-ons, fragments, misused words, and more and suggests word choices tailored to the reading audience;
  • Mechanical Notifications — flags spelling and punctuation errors and problems such as misused conjunctions, subject-verb agreements, prepositions, and others;
  • Originality and Transparency — assists original, error-free writing with the help of the content and plagiarism detectors; and
  • Multi-language Support — in addition to English, will soon offer German, French, Italian, Spanish, and Portuguese to make it accessible to users around the world.

Copyleaks said its API is built "by developers for developers" and is "fully customizable," supporting key programming languages, including C#, Node.JS, PHP, Java, Ruby, Python, and more. Documentation can be found here.

In addition, Copyleaks has released Codeleaks Source Code AI Detector, which identifies AI-generated source code and "provides key licensing details, helping mitigate potential infringement, ensuring full code transparency, and keeping proprietary code secure."

For more information, visit the Grammar Checker API page.

About the Author

Kate Lucariello is a former newspaper editor, EAST Lab high school teacher and college English teacher.

Featured

  • glowing digital brain-shaped neural network surrounded by charts, graphs, and data visualizations

    Google Releases Advanced AI Model for Complex Reasoning Tasks

    Google has released Gemini 2.5 Deep Think, an advanced artificial intelligence model designed for complex reasoning tasks.

  • abstract pattern of cybersecurity, ai and cloud imagery

    OpenAI Report Identifies Malicious Use of AI in Cloud-Based Cyber Threats

    A report from OpenAI identifies the misuse of artificial intelligence in cybercrime, social engineering, and influence operations, particularly those targeting or operating through cloud infrastructure. In "Disrupting Malicious Uses of AI: June 2025," the company outlines how threat actors are weaponizing large language models for malicious ends — and how OpenAI is pushing back.

  • cybersecurity book with a shield and padlock

    NIST Proposes New Cybersecurity Guidelines for AI Systems

    The National Institute of Standards and Technology has unveiled plans to issue a new set of cybersecurity guidelines aimed at safeguarding artificial intelligence systems, citing rising concerns over risks tied to generative models, predictive analytics, and autonomous agents.

  • magnifying glass highlighting a human profile silhouette, set over a collage of framed icons including landscapes, charts, and education symbols

    AWS, DeepBrain AI Launch AI-Generated Multimedia Content Detector

    Amazon Web Services (AWS) and DeepBrain AI have introduced AI Detector, an enterprise-grade solution designed to identify and manage AI-generated content across multiple media types. The collaboration targets organizations in government, finance, media, law, and education sectors that need to validate content authenticity at scale.