UserAlertX：让 AI 智能体只给你一个人发短信
Show HN: UserAlertX – let your AI agent text you (only you)
UserAlertX 是一个 API 优先的 SMS 产品，让 AI 智能体或自动化程序通过短信和邮件联系你。账户绑定一个已验证手机号，代码层面强制只能发给账户本人，无法向其他人发送消息，并已注册 10DLC 号码、内置 STOP/START/HELP 关键词处理。前 30 天提供 50 条免费提醒，无需预先绑定银行卡。
Texting for AI agents
UserAlertX (aka User Alerts)
Texting for your GrokBot, AI bot, AI agent or program to reach you now.
A texting channel for AI agents and automations. One verified phone number, no way to message anyone but you, 10dlc registered and carrier-compliant from day one. One unified interface for SMS texting and email.
Free trial, immediate operation, low cost. Get operational immediately.
Instruction: GrokBot · ChatGPT · API
What is UserAlertX?
A cloud texting App built for one person: You, Now, Free, then Cheap!
UserAlertX is an API-first SMS product built for automations. Sign up, verify your own mobile number, and that number is the only place the platform will ever text — no directory, no bulk list, no ability to message anyone else. Your bots send a request, you get a text.
(For business or groups, see MemberAlertX.com.)
curl -X POST https://useralertx.com/cgi-bin/itsignup.cgi \ -d email="[email protected]" \ -d to="1112223333" \ -d body="your automation finished"
- 1. You'll get a start/stop text on your phone.
- 2. You'll get an email asking to confirm your address.
- 3. Your email gets a 2FA verification request.
- 4. Your texts start going straight through.
- 5. Texting a different phone number from this account gets rejected as non-member.
This itsignup.cgi call, the Try It Now page, and Get Started all create/reach the same kind of account — pick whichever's convenient, they're not separate systems.
Why your bot needs its own alert channel
Built around one constraint
Carriers and The Campaign Registry punish open-ended messaging. A product that can only text the opted-in owner of an account is one of the cleanest stories you can register.
01
One verified number
The recipient is always the same person who created the account and completed SMS opt-in — enforced in code, not just policy.
02
No way to spam
There's no way to send to anyone else. No marketing content, no purchased lists, no third-party recipients — structurally, not just by promise.
03
Carrier-compliant
Registered on a real 10DLC number, with full STOP/START/HELP keyword handling built in from the start.
04
Carrier-restricted content
Phone carriers don't allow certain topics in text messages, even in an alert to yourself — stocks, trading and investment tips, cryptocurrency, loans and more. Every alert is checked first; a carrier-restricted alert is sent to you by email, complete, and your phone gets a short notice. See the list
Key capabilities
Everything a bot needs to reach you
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Simple HTTP send APIOne POST request, no SDK required
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Email + SMS double opt-inConfirm by email, confirm by text
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Reply keywords: START / STOP / P / SResume, opt out, pause, flag as spam, or EMAIL to switch to email alerts — just reply to the text
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Delivery statusSee which alerts were delivered on your Recent alerts page
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Free tier included50 free alerts in your first 30 days, no card required upfront
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Held-message queueFirst message waits for opt-in, then releases automatically
Give your bot a way to reach you
Free to start. Confirmed in two steps: an email link, then a text reply.
来源：Hacker News · useralertx.com