Natural Language Processing (NLP)Key RequiredFeatured

Cloudmersive NLPFree REST API

Cloudmersive NLP: text translation, language detection, and sentence sentiment

API Docs

Developer Workbench & Live ConsoleKey Required

Test real endpoints directly, inspect live JSON, or copy implementation code.

GET
curl -X GET "https://www.cloudmersive.com/nlp-api" \
  -H "Accept: application/json" \
  -H "Authorization: Bearer <YOUR_API_KEY>"
ResponseReady / Idle

Ready for Live Evaluation

Click [ Send Request ] to dispatch a real request via FreeAPI proxy and inspect real JSON payloads.

Rate Limit
800 req/month
Auth Mode
Key Required
Security & CORS
HTTPS • CORS Ready
Protocol
REST / JSON

An external API key is required to authenticate requests with Cloudmersive NLP. Allowance: 800 req/month.

Get API Key ↗
COMPANION DEVELOPER TOOL0ms Client Sandbox

Text Readability & Content Metrics Analyzer

Calculate Flesch Reading Ease, Grade Level, Gunning Fog index, syllable counts, and reading durations in real time.

Launch Tool
Interactive Web Tool Available

Test and interact with this service in your browser using our Text Readability & Content Metrics Analyzer tool.

Open Live Tool

Frequently Asked Questions (FAQ)

Technical and integration answers for Cloudmersive NLP.

Yes, Cloudmersive NLP is listed as a free endpoint on FreeAPI Directory with an allowance of: 800 req/month.
Official Service Provider Ownership: Cloudmersive NLP

All data feeds, trademarks, and documentation belong directly to the original API provider. FreeAPI serves purely as a discovery index and documentation reference for developers.

DMCA / Takedown Request

Top Alternatives in Natural Language Processing (NLP)

GET

Watson Natural Language Understanding

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

Natural Language Processing (NLP)API KeyCORS
GET

Google Cloud Natural Language

Google Cloud NLP: entity recognition, sentiment analysis, and syntax trees

Natural Language Processing (NLP)API KeyCORS
GET

NLP Cloud

High-performance transformer and spaCy NLP models for entity extraction and summarization

Natural Language Processing (NLP)API KeyCORS
GET

LibreTranslate

Free and open-source machine translation engine powered by Argos Translate

Natural Language Processing (NLP)No AuthCORS
GET

Detect Language

Detect the written language of any string of text with high precision

Natural Language Processing (NLP)API KeyCORS
GET

Lecto Translation

Fast, high-volume machine translation API supporting multiple language pairs

Natural Language Processing (NLP)API KeyCORS
GET

Perspective

Perspective API: machine learning models scoring toxicity and harassment in text

Natural Language Processing (NLP)API KeyCORS
Related Collections & Thematic Guides