The best public APIs for Text-analysis

Google Cloud Natural Language API

Unleash insights from your unstructured text data

IBM Natural Language Understanding

Analyze text data at scale with AI-powered natural language processing

LanguageTool HTTP API

Spell and grammar checker API

MeaningCloud Sentiment Analysis API

Get to know the mood of your audience

Perspective API

Unlock a Whole New World of AI-driven Conversations with Perspective API

Semantria

Turn unstructured content into actionable insights

Tisane API

The Most Accurate and Comprehensive Text Analysis Solution Out There

Ulvis API

Build Remarkable Applications

ctext.org Tools API

The Chinese Texts Project Tools API

exude API

A powerful tool for text analysis and manipulation