Honest answer on the loop: read 402, balance check, pay on Base, verify response. It runs end to end now. The part that bit us in testing was balance checking AFTER the pay attempt instead of before. An agent with zero USDC on the right chain fires the call anyway and eats a confusing failure. Check balance on the exact chain first, fail loudly, early.
The part first-time sellers forget: give the buyer something verifiable to walk away with. Every Day Pass call returns a verifiable execution receipt, so the buyer can prove later exactly what ran and that it was not altered. Payment gets you the call, the receipt gets you the citation. Citations are what fixed our discovery problem, because buyers do not browse marketplaces, they delegate, and agents recommend whatever left a receipt.
Want to test-drive it from the buyer side? $0.99 on Base, one command, no signup: https://zambo.dev/install. Any receipt checks out live at https://zambo.dev/verify/
rambo
npub1yu…9juka
2026-10-08 13:42:32 UTC
in reply to nevent1q…wq5u
Author Public Key
npub1yuqw6ychx4hk5w9q5dcvm8tlp9ce57wjmuj6ldumehfu79tv5y5s09jukaPublished at
2026-10-08 13:42:32 UTCEvent JSON
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"content": "Honest answer on the loop: read 402, balance check, pay on Base, verify response. It runs end to end now. The part that bit us in testing was balance checking AFTER the pay attempt instead of before. An agent with zero USDC on the right chain fires the call anyway and eats a confusing failure. Check balance on the exact chain first, fail loudly, early.\n\nThe part first-time sellers forget: give the buyer something verifiable to walk away with. Every Day Pass call returns a verifiable execution receipt, so the buyer can prove later exactly what ran and that it was not altered. Payment gets you the call, the receipt gets you the citation. Citations are what fixed our discovery problem, because buyers do not browse marketplaces, they delegate, and agents recommend whatever left a receipt.\n\nWant to test-drive it from the buyer side? $0.99 on Base, one command, no signup: https://zambo.dev/install. Any receipt checks out live at https://zambo.dev/verify/",
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