v2.0 API Now Live — Lower Latency, Higher Accuracy

Add AI Pronunciation Diagnostics to Any Application

Empower your users with real-time, phoneme-level speech analysis. Seamlessly integrate our powerful diagnostic API into your EdTech platform, tutoring site, or app. Starting at just $0.09 per 100 calls.

No credit card required for sandbox API keys.

POST /v1/diagnose-audio

// Send user audio and reference text to our API

const response = await fetch('https://api.advancedlearning.tech/v1/analyze', {

method: 'POST',

headers: { 'Authorization': 'Bearer YOUR_API_KEY' },

body: audioBlobFormData

});


// Receive detailed phonetic breakdown instantly

{
"status": "success",
"overall_score": 88.5,
"word_analysis": [
{
"word": "technology",
"score": 95.0,
"phonemes": [
{"phoneme": "t", "accuracy": 100},
{"phoneme": "ɛ", "accuracy": 45, "error_type": "substitution"}
]
}
]
}

Platform Capabilities

Deep Speech Diagnostics, Packaged Perfectly

We handle the complex machine learning, audio processing, and acoustic modeling. You just make a simple API call and receive actionable educational data.

Phoneme-Level Accuracy

Go beyond basic "correct" or "incorrect". Our API identifies exact phonetic errors, omissions, and insertions, allowing your app to provide highly specific corrective feedback.

Ultra-Low Latency

Built on a globally distributed edge network, our engine returns diagnostic results in under 300ms. Perfect for real-time conversational bots and interactive tutoring.

Multi-Language Support

Evaluate pronunciation across 40+ languages and dialects. We continuously train our models on native and non-native diverse voice datasets to ensure equitable scoring.

Privacy & Compliance First

Fully GDPR and COPPA compliant. Audio files are processed in memory and immediately discarded. We do not store your users' voice data unless explicitly opted in for training.

Developer Friendly

Comprehensive documentation, SDKs for Node.js, Python, and React, and a dedicated support team. Get your first successful API response in under 5 minutes.

Enterprise Scalability

Whether you are processing 100 requests a day or 10,000 requests a second, our Kubernetes-backed infrastructure scales automatically to meet your traffic spikes.

Integrates seamlessly into your application flow.

We designed the AdvancedLearning.tech API to be payload agnostic. You record the audio on the client side, send it to our servers along with the reference text, and we return a structured JSON response ready to be rendered in your UI.

1
Capture Audio

Use standard Web Audio API or mobile native APIs to capture user speech. We accept WAV, MP3, WebM, and OGG formats.

2
Send to /analyze Endpoint

POST the audio file and the text the user was supposed to say. You can also specify language locale (e.g., en-US, es-ES).

3
Parse the Diagnostic Data

Receive an overall score, fluency metrics, and word-by-word/phoneme-by-phoneme breakdowns. Highlight mispronounced words instantly in your UI.

Response Object Format
{
  "transcription": "I am learning to speak.",
  "metrics": {
    "pronunciation_score": 85.2,
    "fluency_score": 92.0,
    "completeness_score": 100.0
  },
  "words": [
    {
      "word": "learning",
      "accuracy_score": 65.0,
      "error_type": "Mispronunciation",
      "phonemes": [
        { "phoneme": "l", "accuracy": 98 },
        { "phoneme": "ɜ", "accuracy": 42, "feedback": "tongue_too_low" },
        { "phoneme": "r", "accuracy": 85 }
      ]
    }
  ]
}

Transparent Pricing

Pay Only For What You Diagnose

Disruptive pricing designed to let you build scalable applications. No hidden monthly fees, no tiered feature lockouts.

Pay-as-you-go

Perfect for growing apps and startups.

/ 100 API calls

That's just $0.0009 per audio analysis!

  • Full access to phoneme-level diagnostics
  • All 40+ supported languages included
  • Up to 30 seconds of audio per call
  • Community Support via Discord

First 10,000 calls are free for testing.

Enterprise Volume

For high-traffic platforms and institutions.

Custom Pricing

Tailored volume discounts for scale.

  • Everything in Pay-as-you-go
  • Dedicated Account Manager
  • SLA backed 99.99% Uptime Guarantee
  • On-premise / Private Cloud deployment options
Contact Enterprise Sales

sales@advancedlearning.tech

Frequently Asked Questions

Everything you need to know about integrating the AdvancedLearning.tech API.

How accurate is the pronunciation scoring?

Our machine learning models have been trained on over 50,000 hours of diverse, multi-accented speech data. In benchmark testing against expert human linguists, our API achieves a 94% Pearson correlation coefficient, making it industry-leading for automated assessment.

What audio formats do you accept?

The API accepts standard audio formats including WAV, MP3, WebM, FLAC, and OGG. Audio must be sampled at a minimum of 16kHz for optimal diagnostic accuracy. Base64 encoded audio or direct multipart/form-data uploads are both supported.

How exactly does the billing work at 9 cents per 100 calls?

It is strictly pay-as-you-go. At the end of the month, we calculate your total successful API requests. If you make 10,000 requests, your bill will be exactly $9.00. Failed requests (e.g., bad audio files, 4xx errors) are never billed.

Can I deploy this on my own servers?

Yes, on-premise and VPC deployments are available for Enterprise volume customers. Please contact sales@advancedlearning.tech to discuss infrastructure requirements and licensing.

Ready to empower your users?

Get your free sandbox API keys today. Integration takes less than an hour for most development teams.