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AI agents

Curated insights and technical field notes on AI agents.

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AI systems

AI agents get two payment rails, card and stablecoin

Visa and Coinbase are building competing payment rails for machines, not people. Coinbase's x402 puts stablecoins on HTTP's long-reserved 402 status code for sub-cent agent payments. Visa keeps the card rails and their dispute resolution. The split is real, because a 10,000-call-an-hour agent and a $4,000 flight want opposite things.

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01 / Payments

Commerce architecture

Merchant-of-record decisions, checkout ownership, billing operations, settlement, reconciliation, and risk boundaries.

02 / AI tooling

Practical AI systems

Agentic commerce, multi-agent orchestration, model fine-tuning, runtime governance, and production deployment.

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