FreeAPI
Natural Language Processing (NLP)Key Required

Watson Natural Language UnderstandingFree REST API

IBM Watson AI text analytics: keyword extraction, sentiment, and semantic concepts

API Docs

Developer Workbench & Live ConsoleKey Required

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Official Docs
GET
curl -X GET "https://cloud.ibm.com/apidocs/natural-language-understanding" \
  -H "Accept: application/json" \
  -H "Authorization: Bearer <YOUR_API_KEY>"
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Rate Limit
Variable
Auth Mode
Key Required
Security & CORS
HTTPS • CORS Ready
Protocol
REST / JSON

An external API key is required to authenticate requests with Watson Natural Language Understanding. Allowance: Variable.

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Frequently Asked Questions (FAQ)

Technical and integration answers for Watson Natural Language Understanding.

Yes, Watson Natural Language Understanding is listed as a free endpoint on FreeAPI Directory with an allowance of: Variable.
Official Service Provider Ownership: Watson Natural Language Understanding

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