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Base URL

All API requests should be made to: 
https://api.verbalisai.com/api

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Request Format

The VerbalisAI API uses REST principles with JSON for most endpoints. File uploads use multipart/form-data.

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Headers

Most endpoints require the following headers: 
Authorization: Bearer YOUR_API_KEY
Content-Type: application/json
For file uploads: 
Authorization: Bearer YOUR_API_KEY
Content-Type: multipart/form-data

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Response Format

All API responses follow a consistent structure:

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Success Response

{
  "success": true,
  "data": {
    // Response data here
  }
}

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Error Response

{
  "success": false,
  "error": "Error Type",
  "message": "Detailed error message"
}

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HTTP Status Codes

The API uses standard HTTP status codes:
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200
OK
Request successful
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201
Created
Resource created successfully
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400
Bad Request
Invalid request parameters
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401
Unauthorized
Authentication required or failed
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403
Forbidden
Insufficient permissions
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404
Not Found
Resource not found
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429
Too Many Requests
Rate limit exceeded
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500
Internal Server Error
Server error

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Rate Limiting

The API implements rate limiting to ensure fair usage:
Endpoint TypeLimitWindow
General API100 requests15 minutes
Upload Operations20 requests15 minutes
Authentication10 requests15 minutes
Rate limit headers are included in responses: 
X-RateLimit-Limit: 100
X-RateLimit-Remaining: 95
X-RateLimit-Reset: 1640995200

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Pagination

List endpoints support pagination using query parameters: 
GET /v1/transcript/user?page=1&limit=20
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page
integer
default:"1"
Page number (1-based)
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limit
integer
default:"20"
Number of items per page (max 100)
Paginated responses include metadata: 
{
  "success": true,
  "data": {
    "items": [...],
    "pagination": {
      "page": 1,
      "limit": 20,
      "total": 150,
      "pages": 8,
      "hasNext": true,
      "hasPrev": false
    }
  }
}

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Filtering and Sorting

Many list endpoints support filtering and sorting:

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Filtering

GET /v1/transcript/user?status=completed&language=en

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Sorting

GET /v1/transcript/user?sort=created_at&order=desc
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sort
string
Field to sort by
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order
string
default:"desc"
Sort order: asc or desc

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Webhooks

VerbalisAI supports webhooks for real-time notifications. Configure webhook URLs in your dashboard to receive events for:
  • Transcription completed
  • Transcription failed
  • Credit balance low
  • Payment processed
Webhook payloads follow this format: 
{
  "event": "transcription.completed",
  "data": {
    // Event-specific data
  },
  "timestamp": "2024-01-15T10:30:00Z"
}

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SDKs and Libraries

Official SDKs are available for popular programming languages:

JavaScript/TypeScript

npm install @verbalisai/sdk

Python

pip install verbalisai-sdk

PHP

composer require verbalisai/sdk

Go

go get github.com/verbalisai/go-sdk

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Testing

Use our sandbox environment for testing: 
https://sandbox-api.verbalisai.com/api
The sandbox environment uses test data and doesn’t process real audio files or charge credits.
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