Build with VocalNote AI
Integrate world-class audio transcription service and AI rewriting into your product via a simple REST API. Outperforming standard openai api, gemini api, or whisper ai transcription, our conversation intelligence platform delivers unparalleled accuracy, fast processing, and is priced by the second.
All-in-One Voice
One call handles everything: transcribe raw audio then immediately rewrite it into clean notes, specs, or summaries.
Transcription Only
Send us raw audio — get back accurate verbatim text with word-level and sentence-level timestamps.
Rewriting Only
Pass transcribed text and pick a style — Professional, Meeting Minutes, Specs, Email, Social — and we format it instantly.
Document Summarizer
Pass base64 PDF, Word (.docx), Excel (.xlsx), or text files to extract structured summaries and prioritized key insights.
YouTube Summarizer
Input any YouTube video or Short URL to extract timed captions, takeaways, and timestamped structured notes.
Image & Whiteboard OCR
Multimodal vision AI extracts handwritten notes, diagram boxes, sprint whiteboards, and receipts into clear Markdown.
Web Page Summarizer
Scrapes and cleans any article URL, stripping ads and banners to deliver concise summaries and key takeaways.
Behavioral Analytics
Submit a transcript for psychological sentiment analysis, Empathy scoring, metrics, and conversational intelligence.
Simple, Transparent Pricing
No monthly fees. No free-tier throttling. Pay only for what you process.
| Feature | Rate | Minimum Load |
|---|---|---|
| ⚡ All-in-One Voice API (Transcribe + Rewrite) | $1.00 / hour | $10.00 |
| 🎙️ Transcribe Only | $0.60 / hour | Included |
| ✍️ Rewrite Only | $0.60 / hour | Included |
| 📄 Document Summarization (PDF, Word, Excel) | $0.01 / request (1¢) | Included |
| 📺 YouTube Video Summarizer | $0.01 / request (1¢) | Included |
| 🖼️ Image Multimodal OCR & Insights | $0.005 / request (0.5¢) | Included |
| 🌐 Web Page & Article Summarizer | $0.005 / request (0.5¢) | Included |
| 🧠 Behavioral Analytics | $0.30 / hour ($0.005/min) | Included |
| 🛡️ PII Scrubbing | $0.005 / request | Included |
curl -X POST https://worker.vocalnote.app/apiv1/process \
-H "Authorization: Bearer vn_your_api_key" \
-H "Content-Type: application/json" \
-d '{
"mode": "combined",
"audio_base64": "UklGRiQAA...",
"mime_type": "audio/webm",
"style": "Professional"
}'
# Response
{
"success": true,
"data": {
"transcription": "...",
"rewritten_text": "...",
"audio_duration_sec": 42,
"cost_charged": 0.000011667,
"request_id": "550e8400-..."
}
}Frequently Asked Questions
Conversation intelligence is the use of AI to analyze speech and text for deep insights. VocalNote provides a robust real time conversation intelligence platform. Our conversation intelligence software turns raw audio into actionable data analytics, allowing you to understand sentiment, empathy, and intent from any artificial intelligence conversation.
We bill by the second. If you process a 30-second clip at the All-in-One rate, we deduct exactly $0.0083 from your balance. There are no minimum per-request fees — you pay only for the audio you process.
No. Your $10 deposit stays in your wallet until you use it up. Credits never expire, so you can top up once and use the API at your own pace.
Yes. Inside your API Portal you can set a safety cap. Once your monthly spend reaches the cap, all API requests return a 402 error until the next billing cycle — preventing any accidental overages. You also get an Auto-Recharge toggle to auto top-up when balance drops below $1.
Ready to build?
Create your free account, load $10 minimum, and your API key is ready in seconds.
API Documentation & Specifications last reviewed: · Version 1.2
