CheckNumber.AI 
HTX Checker
htx $3.5 per 10,000 checks
- Core data available
- number, activated
- Best for
- Reward-list screening and lead qualification by phone
No-code CSV REST API Exportable results
Verify HTX Registration by Phone or Email
Confirm HTX exchange account presence using either a phone number or an email address.
CheckNumber's HTX checker tells you whether a phone number or email address belongs to a registered HTX (Huobi) account, without logging in, messaging, or contacting the user. Upload a CSV of numbers or emails, or call the REST API, and every record comes back with a clear registered or not-registered verdict, ready to qualify leads, screen for risk, or clean an audience list.
Phone + Email
Input types
From $3.5
Per 10,000 checks
2
Task types
Submitted number +1214••••3421
Submitted email z***@qq.com
HTX status yes / no
HTX Checker HTX Email Checker No account, number, or SIM required
Every check runs through official platform APIs on our own infrastructure. You never connect, bind, or use your own account, phone number, or SIM card — just upload your list or call the API and get results.
What CheckNumber detects for HTX
HTX account by phone
Confirms whether a phone number has a registered HTX account (yes or no).
HTX account by email
Confirms whether an email address is registered on HTX (yes or no).
Bulk yes/no verdict
Every number or email comes back with a clear registered or not-registered result, ready to filter and segment.
Passive, no contact
Reads registration signals only. The account holder is never messaged, logged in to, or notified.
What You Can Check
Choose an HTX task by identifier type
HTX accounts can be checked by either phone number or email address. Pick the task type that matches the identifier your list contains.
HTX Email Checker
htx_email $7 per 10,000 checks
- Core data available
- email, activated
- Best for
- Reward-list screening and lead qualification by email
| HTX product | Task type | Input | Core data available | Best for | Current price |
|---|---|---|---|---|---|
| HTX Checker API documentation | htx | Phone numbers in E.164 format | number, activated | Reward-list screening and lead qualification by phone | $3.5 per 10,000 checks |
| HTX Email Checker API documentation | htx_email | Email addresses | email, activated | Reward-list screening and lead qualification by email | $7 per 10,000 checks |
Core HTX data
What each HTX task returns
The result file maps one row to each submitted record with the fields below.
Registration by phone
htx - Number
- The phone number supplied for the check, in E.164 format.
- htx
- Whether the number has an active HTX account (yes or no).
Registration by email
htx_email - The email address supplied for the check.
- htx
- Whether the email is registered on HTX (yes or no).
The htx field is a boolean signal only — it does not include trading history, KYC tier, or account balance.
Run an HTX batch in three steps
Use the no-code platform for uploaded lists or the REST API for recurring workflows.
- 1
Prepare your list
Provide E.164 phone numbers or email addresses, one per row, depending on which identifier your list uses.
- 2
Create the matching task
Upload the file or call the API with task_type set to htx for phone numbers or htx_email for email addresses.
- 3
Export mapped rows
Download the completed file and match each result to its source number or email.
Common Use Case
Improve HTX list quality before outreach
Qualify crypto-exchange leads or validate customer data before outreach.
No-code CSV REST API Exportable results
Signal 1
Registration check — confirm in bulk whether each phone number or email is an HTX account.
Signal 2
Lead qualification — focus spend on genuine HTX users and drop the rest before outreach.
Signal 3
Privacy-safe — a passive check that never messages, logs in, or notifies the account holder.
HTX FAQ
Can I check whether numbers or emails are on HTX in bulk?
Yes. Upload a CSV of phone numbers or email addresses, or call the REST API, choose the matching task type, then download a result file with a registered or not-registered verdict for each record. You are billed only for successful checks.
Do you check by phone number, email, or both?
Both. The number task type checks phone numbers and the email task type checks email addresses against HTX registration, so you can use whichever identifier your list contains.
Does the check contact or notify the HTX user?
No. The check is passive and reads registration signals only. Nothing is sent to the number or email, and the account holder is never contacted, logged in to, or notified.
Is there a free trial?
Yes. New accounts receive 1,000 free checks on signup with no credit card, and every check is pay-as-you-go with no monthly fee, and the credits you top up never expire.
Refer & Earn 10%
Earn 10% Commission on Every Recharge — For Life
Share your unique referral link. When someone signs up through it and tops up their account, you instantly receive 10% of the amount paid as bonus credit — no expiry, no cap.
- 10% commission on every recharge your referrals make
- Bonus credit is applied automatically — no withdrawal steps
- Lifetime referral link — earn forever, not just once
10%
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