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Best grammar APIs

Spell and Grammar Checker API

This API is able to detect any spelling or grammar errors in your application. Submit text and receive a JSON response with potential errors and suggested corrections.

Natural Language Processing (NLP) Free 7-Day Trial

100% uptime 174ms avg MCP ready

Part-Of-Speech Tagging API

This API will help you tag different parts of any speech provided. Tags the provided text with parts of speech (such as nouns, verbs, adjectives, adverbs, etc.)

Natural Language Processing (NLP) Free 7-Day Trial

100% uptime 176ms avg MCP ready

Grammar API

A Spelling and Basic Grammar Check API is a tool that allows developers to integrate spelling and grammar checking functionality into their applications

Natural Language Processing (NLP) Free 7-Day Trial

100% uptime 138ms avg MCP ready

Universal JSON Fix

Universal JSON Fix repairs broken or malformed JSON, especially from LLMs like ChatGPT, Claude, Deepseek, Gemini, or Llama. This API ensures reliable parsing by fixing mixed quotes, missing commas, and formatting issues, making it ideal for AI applications.

Tools & Utilities Free 7-Day Trial

100% uptime 13ms avg MCP ready

Extract Inappropriate Language API

Extract Inappropriate Language API swiftly analyzes text to spot unsuitable language, promoting a positive community environment.

Natural Language Processing (NLP) Free 7-Day Trial

100% uptime 324ms avg MCP ready

Google Language Translator API

The Google Language Translator API, powered by advanced neural machine translation, effortlessly translates between languages, improving global communication and connectivity.

Natural Language Processing (NLP) Free 7-Day Trial

100% uptime 746ms avg MCP ready

Grammar Correction API

The Grammar Correction API is a tool that utilizes advanced AI algorithms to enhance the structure, grammar, and readability of user-entered sentences.

Natural Language Processing (NLP) Free 7-Day Trial

100% uptime 11,322ms avg MCP ready

GS1 Code Translator API

Instantly decode GS1 barcode data and retrieve application identifiers with full descriptions, field types, and industry-compliant formatting.

Data & Analytics Free 7-Day Trial

100% uptime 977ms avg MCP ready

Error Finder API

The Error Finder API detects grammatical, spelling and style errors, providing suggestions to improve the quality of texts in multiple languages and styles.

Natural Language Processing (NLP) Free 7-Day Trial

100% uptime 2,809ms avg MCP ready

Global Linguist API

Translate seamlessly in 100+ languages with structured results, ideal for education, localization, and communication solutions in a globalized world.

Natural Language Processing (NLP) Free 7-Day Trial

100% uptime 2,597ms avg MCP ready

GS Parse Data API

Powerful GS1 barcode interpreter returning all included AIs with full context, metadata, data types, and value descriptions.

Data & Analytics Free 7-Day Trial

100% uptime 1,765ms avg MCP ready

Multilanguage Code Compiler API

Code Compiler API is a versatile tool that allows you to compile code in over 35 programming languages. With this API, you can easily submit your code and receive comprehensive responses, including detailed outputs and error messages. It streamlines the code compilation process, making it convenient and efficient for developers.

Tools & Utilities Free 7-Day Trial

100% uptime 1,963ms avg MCP ready

Linguist Tools API

Extract word definitions, synonyms, antonyms, examples, and translations with structured data from the Cambridge Dictionary for educational tools, research, and language learning applications.

Natural Language Processing (NLP) Free 7-Day Trial

100% uptime 12,826ms avg MCP ready

Grammar Genius API

The Grammar Genius API detects grammatical, spelling and style errors, providing suggestions to improve the quality of texts in multiple languages and styles.

Natural Language Processing (NLP) Free 7-Day Trial

100% uptime 2,071ms avg MCP ready

Polyglot Translator API

Break language barriers with the Polyglot Translator API, offering real-time, accurate translations for global communication, education, and localization needs.

Natural Language Processing (NLP) Free 7-Day Trial

100% uptime 1,939ms avg MCP ready

Language Gateway API

Facilitate global communication by translating text across 100+ languages, with high accuracy and speed for education, localization, and multilingual platforms.

Natural Language Processing (NLP) Free 7-Day Trial

100% uptime 10,640ms avg MCP ready

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Best grammar APIs

Spell and Grammar Checker API

Part-Of-Speech Tagging API

Grammar API

Universal JSON Fix

Extract Inappropriate Language API

Google Language Translator API

Grammar Correction API

GS1 Code Translator API

Error Finder API

Global Linguist API

GS Parse Data API

Multilanguage Code Compiler API

Linguist Tools API

Grammar Genius API

Polyglot Translator API

Language Gateway API

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