This Grok Bot prompt reads your invoices and builds cheaper replacements for your subscriptions
Builder shawnbuilds shared a monthly prompt that has Grok Bot check his Gmail invoices, pick subscriptions it thinks it could compete with, build a small team of Bots to copy the one or two core features, and have a separate evaluation Bot blind-test the results. He says it flagged a $399-a-month AI SEO tool, and after a lot of feedback his Bot setup reached what he estimates is about 80% of the quality for roughly $45 a month.
Why it matters
Most people pay for tools where they use only one or two features. Pointing an agent at your invoices is a concrete way to find the ones you could replace yourself.
Who it's for
Founders and freelancers with a pile of SaaS subscriptions and a Grok Bot plan.
How to try it
- Connect Gmail to Grok Bot and ask it to list every recurring invoice with the amount and what you actually use the tool for.
- Pick one tool where you only use one or two features, and ask the Bot to plan a replacement for just those features.
- Have a second Bot compare the two outputs without knowing which is which.
- Only cancel the paid tool after the replacement has held up for a few weeks of real use.
Plan & availability: Works with any Grok Bot plan that can connect to Gmail. Results depend heavily on the tool you're replacing and how much feedback you give. His numbers are his own estimates.
Note: reported by users on X; we haven't independently confirmed it works in the current version.
Source: @shawnbuilds on X
Written by AgentStackList from the original post. Checked Oct 18, 2026. Features, plans and availability can change, so confirm on the source before you rely on it.
grok-botsubscriptionssave-moneyprompts
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