How do I change my phone number after verification?

Once verified, your number cannot be changed from your account screen to protect alerts from going to the wrong phone. Contact support to have your account cleared, then add the new number and reply START to the verification text. If never verified, you can change it yourself up to 3 times.

What happens to carrier-restricted alerts?

Alerts about stocks, crypto, loans, cannabis, tobacco, firearms, gambling or adult content are automatically sent to your email address instead of SMS. Your phone receives only a short notice to check your email. The full alert is not lost.

Can I send the same alert repeatedly, like a status update every few minutes?

No. UserAlertX is for ad hoc alerts when something happens. Phone carriers filter repeated identical messages as spam. Constantly repeated alerts may be sent to email instead or texting may be blocked. Send alerts only when something changes, or use email for regular status updates.

Can I cancel my monthly plan anytime?

Yes. You can cancel your $5/month plan anytime from your account screen. Cancellation stops future charges immediately; alerts keep working until the end of the month you've already paid for.

I got a new phone — how do I change my text number?

Once your text number is verified, it can't be changed from the account screen — that protects your alerts from going to the wrong phone. Contact support to have your account cleared, then add the new number on your account screen and reply START to the verification text. If your current number was never verified, you can change it yourself (up to 3 times).

APIs & SDKs

UserAlertX

SMS and email alerts from AI agents, bots and scripts to your own verified phone or email

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API-first SMS and email alerting platform that lets AI agents, bots and scripts send notifications to one verified phone number or email address with carrier

Overview

A look at useralertx.com

UserAlertX is an API-first SMS and email alerting service built specifically for AI agents, automations, and scripts to reach their owners with real-time notifications. The platform enforces a strict security model: each account is tied to one verified phone number or email address, and alerts can only be sent to that account holder—no bulk messaging, no directories, and no ability to contact anyone else. The service includes carrier compliance features like 10DLC registration, STOP/START/HELP keyword handling, and automatic rerouting of carrier-restricted content to email. Alerts are sent with a simple HTTP POST request requiring no SDK. UserAlertX offers a free trial of 50 alerts or 30 days, then paid plans starting at $5 per month for 50 tokens monthly, or $60 annually for 13 months with the same monthly allowance.

Feature notes

HTTP POST API for sending alerts
Email and SMS dual opt-in verification
Reply keywords for opt-in/opt-out control
Delivery status tracking
Carrier-restricted content auto-routing to email
10DLC registration and carrier compliance
One verified phone number per account
Held-message queue with auto-release after opt-in
Token-based billing system

Pricing

Pricing model: Freemium

Free trial: 50 alerts or 30 days, whichever comes first, no card required. Monthly plan: $5/month for 50 tokens per month (text = 1 token, email = 0.1 token). Annual plan: $60 for 13 months (one month free), includes 50 tokens per month. Extra tokens: $5 for 150 tokens, $10 for 300, $25 for 850, $50

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UserAlertX at a glance

Community votes: 0
Followers: 0
Founded: 2026
HQ: United States
Stage: Startup

UserAlertX metrics

Inspection sheet for useralertx.com: Ahrefs Domain Rating and Majestic link metrics, with the delta since the last inspection.
Metric	Value
Domain Rating	31 +3 (up) since last check
Trust Flow	3 no change since last check
Citation Flow	24 no change since last check
Referring domains	29 no change since last check
External backlinks	155 no change since last check

Domain Rating by Ahrefs inspected 7 Nov 2026, adjusted 4 Nov 2026. Primary topic: Reference/Dictionaries (3). Majestic inspected 25 Oct 2026, adjusted 25 Oct 2026. Link data: Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.

UserAlertX domain diagnostics

Run through the diagnostics

Public RDAP record, last read 6 Nov 2026, 04:43 UTC.
Domain age	1 month
Registered	9 Sep 2026
Expires	9 Sep 2027
Registrar	Cloudflare, Inc.
DNSSEC	Not signed

Run the full check on useralertx.com

UserAlertX post-launch diagnostics

Measured after UserAlertX went live on Launching Pro on 25 October 2026.

Domain Rating (Ahrefs): 31 +4 (up) since launch; 27 at launch (25 Oct 2026), 31 on 7 Nov 2026
Trust Flow (Majestic): 3; First measured 25 Oct 2026
Referring domains (Majestic): 29; First measured 25 Oct 2026

Day 12 since launch. Next receipt: day 30, 24 Nov 2026. The figures report a change; they do not say what caused it, and many things can. No figure here is a guess.

Biggest gains on Launching Pro

Team

Jim LundbergCEO, President — Xpandable Technology Lab LLC

Launch tips, free to read

The playbook on Launching Pro lists what to prepare, what to post on launch day and where else to list your product.

Before the day
Launch day
That week
Beyond launch

See the launch playbook

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FAQ

How do I change my phone number after verification?: Once verified, your number cannot be changed from your account screen to protect alerts from going to the wrong phone. Contact support to have your account cleared, then add the new number and reply START to the verification text. If never verified, you can change it yourself up to 3 times.
What happens to carrier-restricted alerts?: Alerts about stocks, crypto, loans, cannabis, tobacco, firearms, gambling or adult content are automatically sent to your email address instead of SMS. Your phone receives only a short notice to check your email. The full alert is not lost.
Can I send the same alert repeatedly, like a status update every few minutes?: No. UserAlertX is for ad hoc alerts when something happens. Phone carriers filter repeated identical messages as spam. Constantly repeated alerts may be sent to email instead or texting may be blocked. Send alerts only when something changes, or use email for regular status updates.
Can I cancel my monthly plan anytime?: Yes. You can cancel your $5/month plan anytime from your account screen. Cancellation stops future charges immediately; alerts keep working until the end of the month you've already paid for.
I got a new phone — how do I change my text number?: Once your text number is verified, it can't be changed from the account screen — that protects your alerts from going to the wrong phone. Contact support to have your account cleared, then add the new number on your account screen and reply START to the verification text. If your current number was never verified, you can change it yourself (up to 3 times).

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Pricing

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