Sales · Do this yourself

Sell an AI tool that spots high-intent B2B buyers from buying signals.

How it makes money: Charge B2B sales teams $29/mo per seat for daily lists of accounts showing buying signals.

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

💰 Romàn makes about $424k a month doing this. $424,368 MRR, verified via Stripe on TrustMRR (synced 2026-08-14)

No X data

Based on Romàn on TrustMRR (opens in new tab)

Who it’s for

Founders, sales reps, coaches and agencies who need more conversations with buyers.

Adapt it to your industry

  • Coach: reply to Instagram DMs fast and book calls
  • Agency: find companies hiring for a role you can do for them
  • Real estate: follow up with every open-house visitor within an hour

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. Use ChatGPT, Claude or Grok plus your CRM or a spreadsheet to make the first version of the product for one type of customer.
  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

From this list of public company signals (new funding, hiring for X, tool changes), rank which accounts look ready to buy our product and write a one-line reason for each.

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
2–6 weeks for a first versionOur estimate

Your autonomous stack

Autonomy: Agents find leads, send compliant emails and book meetings. Your part: Weekly: review lists and reply rates, pause anything off-target (about 1 hour).

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: Lovable (opens in new tab) (Free tier · Pro $25/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), Instantly (cold email) (opens in new tab) (Growth $47/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: review lists and reply rates, pause anything off-target (about 1 hour).
  10. Price: charge $29 per customer per month (monthly subscription (saas)). Offer the first 3 customers a founding price for honest feedback.
Monthly cost$77–$197/monthFree tiers → paid plans of the tools above. Card fees come out of each sale.
What you could earn · EstimateEstimate: 10 customers × $29 = $290/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

GojiberryAI is a go-to-market tool: it watches for signals that a company may be ready to buy, surfaces the right people and helps teams turn that into outreach.

How it went

TrustMRR shows $424,368 MRR, verified via Stripe (last sync 2026-08-14).

Worth knowing

TrustMRR pulls this figure from the payment provider’s API; the product description is the founder’s own. Revenue can change month to month. The last sync is from August 2026.

Difficulty
AdvancedOur rating
Time to build
Not reportedOur estimate
Monthly cost
Not reported
Revenue
$424,368 MRR, verified via Stripe on TrustMRR (synced 2026-08-14)Verified: Calculated by TrustMRR from payment-provider data (as the TrustMRR page states)
Engagement
No public countThe source shows no number
X buzz
No X data

Posted · Added Oct 16, 2026

Original builder recipe

  • LLM API
  • Public buying-signal sources
  • CRM integration
  • Stripe
  1. Connect your lead sources and CRM.
  2. Have the agent enrich, dedupe and draft, not send.
  3. Review drafts and push approved items to the CRM or sequencer.
  4. Track replies and tune the prompts.

Tags

Tool Stripe

Read the original

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