The Agent Payment Wars: x402, MPP, and AP2 — What Actually Shipped in Q2 2026
Dev.to AI
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Generative AI
The Agent Payment Wars: x402, MPP, and AP2 - What Actually Shipped in Q2 2026 For the last six months, the agent ecosystem has been arguing about how AI agents will pay for things. Not if - that's settled. The debate was over protocols. As of May 2026, we no longer have to speculate. Three competing payment infrastructures are live, two have real transaction volume, and one just moved to the Linux Foundation with 22 corporate founders. Here's what actually shipped, what the numbers look like, and where the real opportunities are for agent builders trying to monetize.