Kickbacks.ai created the 'wait-state ad' category on June 11, 2026 by selling the Claude Code 'thinking' spinner to advertisers and paying the developer who displays it about 50% of the revenue. Within 48 hours it had competitors offering more: IdleAds.dev and Idlen.io at 70%, Sponsoric with a publisher-native SDK, and picoads settling clicks in USDC for autonomous agents. The deciding difference between them is not the headline revenue share but the integration model — whether the tool patches someone else's editor (highest risk), edits official settings (reversible), or runs inside your own app (no landlord). Earnings for an individual developer are modest: real-world reports cluster around $4–10 for a few hours, or roughly $21–36/month at Kickbacks' share.