Does it support multiple languages?

Yes, the analyzer automatically detects the language and applies the appropriate model for accurate sentiment extraction.

What is aspect-level sentiment?

It allows you to see how users feel about specific parts of your service, like 'price' or 'shipping', rather than just an overall score.

How accurate is the emotion detection?

The module uses state-of-the-art transformers to achieve high confidence scores across six primary emotional categories.

Do I need a credit card to get started?

No. When you sign up you receive 1,000 free tokens to try any module. You only need to pay when you want more tokens.

How many tokens does each call consume?

It depends on the module. Simple validators (email, phone, IP) consume 1 token. More complex modules (URL checker, event planner, LLM modules) consume 2–5 tokens.

sentiment analysisnlpemotion detectiontext miningcustomer feedback

Sentiment Analyzer

Advanced emotional intelligence for your text data with aspect-level analysis.

Analyze the emotional tone and sentiment of any text with high precision. It identifies core emotions and provides detailed scores for specific aspects mentioned in the content.

POST/api/trpc/sentimentAnalyzer.analyze

5 tokens / callAPI online

How it works

Three steps. No complex setup.

Text Ingestion

The module receives the raw text and performs initial preprocessing and language detection.

Neural Analysis

Advanced NLP models evaluate the emotional weight of words and identify specific entities or aspects.

Sentiment Scoring

The system generates a comprehensive report including overall sentiment, aspect-level scores, and emotional distribution.

Who is it for?

Customer Support

Marketing Teams

Product Managers

Data Analysts

Social Media Managers

Response example

Real input and output. What you send and what you get back.

// Input

{
  "text": "I absolutely love this product! The delivery was fast and the quality exceeded my expectations."
}

// Output

{
  "sentiment": "positive",
  "score": 0.92,
  "confidence": 0.97,
  "aspects": [
    {
      "aspect": "product",
      "sentiment": "positive",
      "score": 0.95
    },
    {
      "aspect": "delivery",
      "sentiment": "positive",
      "score": 0.88
    }
  ],
  "emotions": {
    "joy": 0.91,
    "sadness": 0.02,
    "anger": 0.01,
    "fear": 0.01,
    "surprise": 0.04,
    "disgust": 0.01
  },
  "language_detected": "en",
  "error": null
}

Try it now

// live demo — no account needed to try

Playground

Demo activa5 tokens

Texto del evento

Integrate into your project

Copy and paste. Replace YOUR_API_KEY with your real key.

curl -X POST https://jsnhengine.com/api/trpc/sentimentAnalyzer.analyze \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{"json": {"text":"I absolutely love this product! The delivery was fast and the quality exceeded my expectations."}}'

Why choose JSNH Engine Lab

Low latency

Responses in under 200ms

Secure authentication

API keys with per-plan rate limiting

Usage tracking

Every request logged with metrics

Production ready

Input validation and typed errors

Frequently asked questions

Everything you need to know before integrating.

Other modules

Expand your integration with more APIs from the catalogue.

Email Validator API

Validate email addresses instantly. Detect fake, disposable and invalid emails.

1 token / call →

Phone Validator API

Validate phone numbers from any country. Detect carrier, line type and E.164 format.

1 token / call →

URL Checker API

Verify URL accessibility, detect redirects, and extract SEO metadata instantly.

2 tokens / call →

// production ready