Active user check
Return whether a phone number is likely connected to an active Telegram user.
Telegram API · Bulk jobs · List cleaning
Telegram Number Check API: Verify Active Users at Scale
Add Telegram user verification, bot-risk signals, and bulk list checks to your backend with one developer-friendly API.
bulkchecker.io helps community, growth, and crypto teams verify phone-based Telegram lists before outreach, airdrops, community imports, or CRM enrichment.
Throughput
10K/request
Signals
User + risk
Workflow
Sync + async
Request
POST /api/v1/detect
Lookup
Score
Webhook
Batch progress
8,420 / 10,000
{
"telegram_user": true,
"active_status": "likely_active",
"bot_risk": "low"
}Capabilities
API Features
Use one API to verify Telegram availability, add account-quality signals, and process large lists without manual review.
Bulk verification
Submit up to 10K numbers per request and collect results through polling or webhooks.
Bot-risk scoring
Add risk bands for bot-like, duplicate, or low-trust patterns in Telegram-heavy workflows.
Webhook callbacks
Receive async completion events for batch jobs, exports, and queue-based verification systems.
Developer quick start
Quick Start
Create an API key, make your first request, and map the response fields into your product logic.
Get your API key
Create a key in the BulkChecker app API Center and keep it on your server.
Make your first call
curl -X POST "https://api.bulkchecker.io/api/v1/detect" \
-H "X-API-Key: YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"product": "tgValid",
"country": "US",
"phones": ["+14155550198", "+442071838750"]
}'Sample response
{
"mode": "async",
"task_id": "xKj9aP3qLm7v",
"message": "Task queued.",
"summary": {
"total": 5000,
"cost_deducted": 0.500000
}
}Reference
Endpoints
Use the shared API endpoints below for Telegram jobs. The product field controls whether you run number, activity, or profile-style checks.
Endpoint
Mode
Best for
Response
POST /api/v1/detect
Async
Phone array jobs
Task ID
POST /api/v1/detect/file
Async
CSV/TXT uploads
Task ID
GET /api/v1/tasks/{task_id}/result
Polling
Completed jobs
Download URL
SDKs
SDKs
Use a native client library or call the REST API directly from your backend service.
Python
Node
Ruby
PHP
Go
.NET
API-first integration
Keep Telegram checks on your server, enrich records after validation, and avoid exposing keys in client-side code.
const result = await bulkchecker.telegram.check({
phone: "+14155550198",
includeBotRisk: true
});Usage-based
Pricing
Start with a free test, then move to volume tiers for automated Telegram checks and bulk jobs.
Tier
Monthly volume
Rate
Included
Test
Free test
$0 to start
Sandbox keys
Developer
10K checks
$3 / 10K
API access
Growth
1M checks
Volume rate
Webhook jobs
Enterprise
10M+ checks
Custom
Priority support
Developer workflows
Use Cases
Build Telegram verification into workflows where inactive, duplicate, or low-quality accounts create downstream cost.
Crypto sybil detection
Score Telegram-linked phone lists before airdrops, allowlists, quests, and token community campaigns.
B2B outreach enrichment
Filter inactive contacts, enrich CRM records, and prioritize Telegram-ready leads before sales workflows.
Community list triage
Add Telegram availability and account-quality context to community imports, moderator review, and audience cleanup.
FAQ
Telegram Number Check API FAQ
Answers about limits, privacy, and bot-risk signals.
Rate limits?
Default API plans support up to 10K numbers per bulk request. Higher sustained throughput is available for enterprise accounts.
Privacy?
The API is designed for verification and list hygiene workflows. It does not send a visible Telegram message to the checked user.
Bot detection?
Bot detection is returned as a risk signal, not an absolute label. Pair it with account age, duplicate patterns, activity, and your own review rules.
Is this a Telegram API number check and Telegram phone lookup API?
Yes. This API serves as a Telegram API number check endpoint and a Telegram phone lookup API. Pass any E.164 number for spot checks, or submit bulk jobs for registration, account age, and bot-risk signals.
Telegram verification cluster
Related Telegram verification pages
Messaging App CheckerPillar hub for WhatsApp, Telegram, Viber, LINE, Zalo, Signal, and related app checks.Telegram Number CheckerCheck Telegram registration for outreach, crypto, and community lists.Telegram Age & Gender CheckerExport Telegram profile attribute signals from bulk phone lists.Telegram Account Age CheckerAdd account age signals to sybil and bot-risk review.Check Telegram OnlineRun a quick free Telegram lookup before bulk validation.Best Telegram CheckersCompare Telegram checker tools for validation and risk workflows.
AI answer engines
Request an AI summary of BulkChecker
Open BulkChecker in your preferred AI assistant to review its bulk WhatsApp, Telegram, phone validation, carrier lookup, social account, crypto exchange, CSV upload, and API workflows.
The prompt points assistants to BulkChecker.io, live pricing, product pages, and API documentation.