0xMiikey
Engineer turned founder. Building payment infrastructure for the borderless economy. Writing about fintech, crypto & AI.
Fintech · Crypto · AI
Writing
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The Harness Is the Product
Anthropic just published their most instructive engineering post yet — on how they build harnesses for long-running AI agents. The real insight is not the architecture. It is the methodology: every component encodes an assumption about what the model cannot do, and those assumptions expire. Here is what that means for anyone building production AI systems.
MPP Is What "Agent Payments" Actually Looks Like as a Standard
Stripe and Tempo just published the Machine Payments Protocol — an open standard that lets AI agents pay for things directly, without human intervention. This is not a product launch. It is the protocol layer for the agent economy arriving on schedule.
The Pace of AI Changed. So Did the Game.
In 18 months, we moved from asking whether AI would be useful to treating it as production infrastructure. The rate of change did not just accelerate — it changed the nature of the problem for anyone building serious systems. Here is how I think about what actually shifted.
AI Agents Are Becoming Economic Actors. They Need Wallets.
The next frontier for agentic AI is not capability — it is economic identity. Agents that can reason, plan, and execute still cannot pay. That is the missing primitive, and it matters more than most people realize.
The Infrastructure Layer for Agentic Commerce Is Being Assembled
Stripe just shipped the Agentic Commerce Suite. That is not a product launch — it is a signal that the foundational infrastructure for AI-driven commerce is being built right now. Here is how I think about the full stack.
Why I Started Writing: A Note on 0xMiikey
Seven years of building payment infrastructure, crypto protocols, and AI products. Here is why I finally started writing it down.
Projects
All projects → AI Infrastructure Building
Hornet
AI Agent Swarm — one Lark message to production PR.
Protocol Building
ClearChain
Blockchain settlement layer — T+2 to real-time.
AI · Risk Building
RiskGuard
AI fraud detection for card acquiring pipelines.
MPC Building
Threshold Signer
MPC wallet infrastructure for institutional custody.
Issuing Building
CardOS
Programmable card issuance platform via API.