API Bouncer

Buy me a coffee

Watson Natural Language Understanding

Natural language processing for advanced text analysis

Text AnalysisAuth: OAuthHTTPS: YesCORS: unknownStatus: alive

Last verified: November 12, 2026

Reliability

80.0% uptime: the documentation responded in 4 of 5 checks over the last 30 days. Median response time: 738 ms.

How we check, and the most reliable APIs →

Visit API →

At a glance

// Fetch the docs page with cURL curl https://cloud.ibm.com/apidocs/natural-language-understanding

History

  • November 12, 2026: last health check, responding
  • November 2, 2026: Documentation link updated

See every change to the directory →

More Text Analysis APIs

Looking for other Text Analysis APIs? Here are more free options in the same category:

  • AI Translate text API — The Text Translation API translates text into any of the 80 supported languages, providing accurate and context-aware translations
  • Analyse Keywords API — This API lets you extract high-frequency keywords, key phrases and latent semantic keywords from any URL
  • Audexum — Text-to-speech REST API with 43 voices and 33 languages
  • Cloudmersive Natural Language Processing — Natural language processing and text analysis
  • Convert Text to Speech API — This API converts any text to speech automatically
  • Detect Language API — This API detects the language from any text (+ 50 languages supported)
  • ELI — Natural Language Processing Tools for Thai Language
  • Fuzzy Text Search API — The Fuzzy Text Search API finds close matches for user queries, handling typos and partial inputs to deliver relevant results quickly and accurately
  • GeoScore — Score content for AI search citation readiness. Returns a 0-100 GEO score, 8 structural metrics, and improvement fixes
  • Google Cloud Natural — Natural language understanding technology, including sentiment, entity and syntax analysis

View all Text Analysis APIs →