Telegram Username Availability Checker This Actor checks Telegram username availability status. It can efficiently check thousands of usernames and determine whether they are available, taken, auctioned, or sold. ## Features - High performance: Optimized for checking thousands of usernames efficiently - Concurrency control: Configurable concurrent requests to avoid rate limiting - Rate limiting: Built-in delays between requests to respect API limits - Retry logic: Automatic retry with exponential backoff for failed requests ## Input json { "usernames": ["telegram", "test", "example"], "maxConcurrency": 5, "requestDelay": 200, "maxRetries": 3 } ### Parameters | Parameter | Type | Required | Default | Description | |-----------|------|----------|---------|-------------| | usernames | string[] | ✅ Yes | [] | Array of Telegram usernames to check (without @ symbol) | | maxConcurrency | number | ❌ No | 5 | Maximum number of concurrent requests (recommended: 5-10) | | requestDelay | number | ❌ No | 200 | Delay between requests in milliseconds | | maxRetries | number | ❌ No | 3 | Maximum number of retries for failed requests | ## Output The Actor outputs data to the default dataset with the following structure: json { "username": "telegram", "status": "Taken", "checkedAt": "2024-12-10T11:00:00.000Z" } ### Status Values - Available - Username is available for registration - Taken - Username is already taken - Auctioned or for sale - Username is being auctioned or is for sale - Sold - Username was sold - Error - An error occurred while checking the username - Invalid - Invalid username format ## Recommended Settings - Thousands of usernames: maxConcurrency: 5-10, requestDelay: 200-500ms - Hundreds of usernames: maxConcurrency: 10-15, requestDelay: 100-200ms