TIER_B · analysis seed

Agent wallets converge on stablecoins plus policy limits

Across Visa Intelligent Commerce, x402 and MPP, the shared design is: the human sets a budget and allowed counterparties; the agent spends inside that envelope; settlement is a stable unit or a card token. The protocols disagree on rail, not on the control problem.

Event 18 March 2026 · source 18 March 2026 · zFinia published 7 September 2026 · retrospective

Why it matters

zFinia’s explainer stack should teach the control problem once, then show how each rail implements it.