Polar
See pricing page
Listed because a sourced use case names it. Pricing not verified by KitRank: see the official pricing page.
Use cases with Polar
MoneyX · @hey_supermax
Add Polar or Stripe payments to a vibe-coded Next.js app
Built ShipToPaid: coding-agent skills plus a Next.js starter that wires Polar or Stripe payments, webhooks and paywalls for Codex, Claude Code and Cursor.
Free tier1-2 hoursIntermediate