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Machine payments and the protocols behind agentic commerce

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Agents are already economic actors. They consume tokens, call paid APIs, and transact on behalf of customers. A new type of agentic infrastructure is emerging to support them, from protocols such as MCP for tool discovery and UCP for checkout to MPP and x402 for machine payments. This session breaks down how these protocols fit together and goes deep on the mechanics of machine payments.

Speakers

Guillaume Poncin, CTO, Alchemy
Manik Surtani, Head of Open Source, Block
Steve Kaliski, Principal Software Engineer, Stripe

Opening remarks and product keynote

Agentic commerce under the hood

See what's next. Sessions 2027 will go deeper on the ideas and technologies reshaping commerce—with more programming and more ways to connect. Register with code S27ONDEMAND to get an additional $200 off early-bird admission.

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