Business building · Do this yourself

Alert a solo business owner’s backup contacts when they stop checking in.

In short: an AI-agent-run business you oversee about an hour a week. Tools cost $30–$145/mo, agent setup is intermediate, and our estimate is 40 subscribers × $9 = $360/mo.

How it makes money: Charge solo business owners $9/mo for weekly check-ins that alert their backup contacts if they go quiet.

Agent setup: Intermediate · Connects several tools (Vercel, Supabase) with payments and simple data. How we rate this

✅ Show HN post with 81 points.

No X data

Based on romeo19361 on Hacker News (opens in new tab)

Who it’s for

Anyone who wants to start or grow a small online business, including people who can’t code.

Adapt it to your industry

  • Coach: an app or tool that helps clients between sessions
  • Shop: a tool that solves one annoying problem for your customers
  • Freelancer: package your best service into a self-serve product

Step by step

  1. Write down one problem a specific group of people pays to solve (for example “gym owners losing members”).
  2. Open ChatGPT, Claude or Grok and paste the prompt below to sharpen the idea and list what the first version must do.
  3. Build a simple first version with a no-code builder such as Lovable, Bolt or Bubble, or with Cursor if you code.
  4. Create a Stripe account and a Payment Link so people can pay from day one.
  5. Make a one-page website that explains the problem, the fix and the price.
  6. Show it to 10 people from your target group and change what confuses them.
  7. Launch where those people already gather, then ask every new user for feedback.

Ready-to-copy prompt

I run a one-person business. Help me write a continuity plan: the list of accounts my clients depend on, who should be told if I go quiet for a week, and a short, calm message for each of them that says where my encrypted plan is.

Start with AI

Opens the AI with this guide and the prompt filled in.

Open in ChatGPT (opens in new tab)Open in Claude (opens in new tab)Open in Grok (opens in new tab)
Time
1–3 hoursOur estimate

Your autonomous stack

Autonomy: Weekly check-ins, reminders, the next-of-kin question and contact messages all go out on schedule. Your part: Weekly: check delivery failures and support emails (about 15 minutes); wording changes need a careful human read.

Every layer an agent-run business needs, in order. Prices are public list prices, checked Oct 16, 2026.

  1. Agent (the brain): Grok Bot (agent + scheduled routines) (opens in new tab) (Included with The X Subscription Premium $30/mo (Super $100/mo for more usage; Plus $8 does not include Grok Bot)). Grok Bot runs the business day to day: writes, answers, decides small things and reports to you. Claude Code or Codex are alternatives.
  2. Build and hosting: Vercel hosting (opens in new tab) (Hobby free · Pro $20/mo), Supabase database (opens in new tab) (Free tier · Pro from $25/mo). The product or service your customers use.
  3. Payments: Stripe payments (opens in new tab) (No monthly fee · 2.9% + 30¢ per card payment). Automatic checkout and receipts. Other options: PayPal Checkout (3.49% + 49¢) or Lemon Squeezy (5% + 50¢, handles sales tax).
  4. Customer acquisition: Buffer (scheduled X posts) (opens in new tab) (Free plan (3 channels, 10 queued posts each) · Essentials $5/mo per channel, billed yearly), beehiiv newsletter (opens in new tab) (Free up to 2,500 subscribers), Apollo (find business emails) (opens in new tab) (Free tier · Basic $65/mo). Agent-written SEO pages, scheduled X posts and a weekly newsletter, plus cold email to businesses that follow CAN-SPAM/GDPR (real sender, opt-out link, no bought consumer lists).
  5. Delivery: Grok Bot (agent + scheduled routines) (opens in new tab) (Included with The X Subscription Premium $30/mo (Super $100/mo for more usage; Plus $8 does not include Grok Bot)). A Grok Bot routine delivers the product or result as soon as someone pays.
  6. Support: Grok Bot (agent + scheduled routines) (opens in new tab) (Included with The X Subscription Premium $30/mo (Super $100/mo for more usage; Plus $8 does not include Grok Bot)). Grok Bot answers the support inbox; anything unclear is flagged for you.
  7. Monitoring and schedule: Grok Bot (agent + scheduled routines) (opens in new tab) (Included with The X Subscription Premium $30/mo (Super $100/mo for more usage; Plus $8 does not include Grok Bot)). Grok Bot scheduled routines run each day: send, check for failures, alert you if something breaks.
  8. Analytics: Google Analytics (opens in new tab) (Free). Tracks visits, signups and sales so the agent can report what works.
  9. Human checkpoint: Weekly: check delivery failures and support emails (about 15 minutes); wording changes need a careful human read.
  10. Price: charge $9 per subscriber (monthly plan per business (hosted, with sms and backup contacts)). Offer the first 3 customers a founding price for honest feedback.
Monthly cost$30–$145/monthFree tiers → paid plans of the tools above. Card fees come out of each sale.
What you could earn · EstimateEstimate: 40 subscribers × $9 = $360/moOur estimate, not a fact or a promise. It’s simple math if you land these customers at this price.
Details: source, numbers and tags

What they did

A weekly check-in email with one button; reminders at 24 and 48 hours; next of kin asked at 72 hours; contacts told at 144 hours unless someone confirms all is well. Messages say where the encrypted plan is and who to call; it stores no passwords or documents.

How it went

Show HN post with 81 points. The builder says clients call it a strong sales feature when they trust him with their hosting and accounts. Commenters pointed to Google’s Inactive Account Manager and business-continuity planning practice. It is free (MIT); no revenue reported.

Worth knowing

This is the builder launching their own product on HN. A hosted version should store messages and contacts only, never passwords or credentials; give a clear false-alarm path and careful wording so families are not frightened; it is not a will or legal advice.

Difficulty
BeginnerOur rating
Time to build
Not reportedOur estimate
Monthly cost
Not reported
Revenue
Not reportedWe only show revenue the source states
Engagement
81 HN points61 comments · fetched Oct 20, 2026
X buzz
No X data

Posted · Added Oct 20, 2026

Original builder recipe

  • Weekly check-in email
  • Escalation schedule
  • Next-of-kin confirmation
  • Prepared contact messages
  • Stripe subscription
  1. Pick a narrow problem people already pay to solve.
  2. Build the first version with your agent.
  3. Charge early and talk to users.
  4. Use the agent to ship fixes fast.

Tags

Read the original

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