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Key Capabilities

  • 10 Indian Languages: Comprehensive support for major Indian languages with native script transcription
  • Intelligent Language Detection: Automatic identification or preference-guided transcription for ambiguous audio
  • Universal Audio Support: Send any common format - automatic conversion handles WAV, MP3, FLAC, OGG, M4A, WebM
Ready to get started? Jump to the Quick Start Guide for your first API call.

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Quick Start Guide

Get your first transcription in under 5 minutes.

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Prerequisites

Before you begin, ensure you have:
  • Valid API credentials (API Key and User ID)
  • An audio file for testing (WAV, MP3, FLAC, or other common formats)
  • cURL installed, or a tool like Postman for making HTTP requests
  • Audio file meets constraints: ≤ 60 seconds duration, mono/stereo channel

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Your First API Call

Here’s a minimal example to transcribe a Hindi audio file: 
curl --X POST https://api.vachana.ai/stt/v3 \
  --H 'Content-Type: multipart/form-data' \
  --H 'X-API-Key-ID: <x-api-key>' \
  --H 'X-API-Request-ID: <x-api-request-id>' \
  --H 'X-API-User-ID: <x-api-user-id>' \
  --H 'X-Organization-ID: <x-organization-id>' \
  --F audio_file='/path/to/your/audio.wav' \
  --F language_code=hi-IN \
Replace these values:
  • <x-api-key>: Your Vachana API key
  • <x-api-request-id>: Your Vachana request ID
  • <x-api-user-id>: Your Vachana user ID
  • <x-organization-id>: Your Vachana organization ID
  • /path/to/your/audio.wav: Path to your audio file
  • hi-IN: Language code (see Language Codes for all options)

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Expected Response

On success, you’ll receive a JSON response like this: 
{
  "success": true,
  "request_id": "req_abc123",
  "transcript": "नमस्ते, आप कैसे हैं?"
}

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Authentication Setup

The Vachana STT API uses header-based authentication with two required credentials.

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Obtaining Credentials

API key provisioning is currently handled by our team to ensure personalized onboarding and support. To request your credentials: Send an email to speechstack@gnani.ai with the following details:
  • Person Name: Your full name
  • Company Name: Your organization name
  • Use Case (optional): Brief description of your intended application
What happens next:
  1. Our team will generate your API credentials (api-key and user-id)
  2. You’ll receive a ready-to-use cURL command with your credentials embedded
  3. We’ll assign free credits to your account so you can start testing immediately—no payment required
  4. You can begin transcribing right away using the provided cURL example
Expected turnaround: API credentials are typically provisioned within 1 business day. No Credit Card Required: All new accounts receive complimentary credits for testing and evaluation. You can explore the full API capabilities without any upfront payment.

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Next Steps