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Text Processing

NLP Tools.
One API Key.

Language detection, sentiment analysis, keyword extraction

Get Started FreeAlso available on RapidAPI →
Stateless API Processing — No request data stored

Features

Language detection for 100+ languages

Sentiment analysis with confidence scores

Keyword and keyphrase extraction

Named entity recognition (people, places, orgs)

Readability scoring (Flesch-Kincaid, etc.)

Text summarization and compression

Use Cases

Content Moderation

Analyze user-generated content for sentiment, toxicity, and appropriateness before publishing.

Customer Feedback Analysis

Automatically categorize and score customer reviews, support tickets, and survey responses.

Multilingual Applications

Detect content language for automatic translation routing or localized processing.

SEO Content Optimization

Extract keywords and analyze readability to optimize content for search engines.

Pricing

Start free with 200/month. Scale up as you grow.

Free

200/month

Free
  • 200/month
  • 5/min
  • Hard limit
Get Started

Pro

10k/month

$9.99/mo
  • 10k/month
  • 30/min
  • $0.001/req
Get Started
Best Value

Ultra

100k/month

$49.99/mo
  • 100k/month
  • 150/min
  • $0.0005/req
Get Started

Mega

1M/month

$199/mo
  • 1M/month
  • 500/min
  • $0.00025/req
Get Started

Frequently Asked Questions

Language detection supports 100+ languages. Sentiment analysis and keyword extraction currently support English, Spanish, French, German, and Dutch.
Single requests support up to 10,000 characters. For longer documents, split into paragraphs and aggregate results for best accuracy.
Our sentiment model achieves 85%+ accuracy on standard benchmarks. Results include confidence scores so you can filter by certainty level.
Named entity recognition identifies people, organizations, locations, dates, and monetary values. Results include entity type and position in text.

Start using NLP Tools API today

Free tier available. No credit card required.