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World Congress 2026 Europe • Jul 10, 2026 • Session details

Teaching agents to pay: what devs need to know

Benjamin Smith

Traditional web checkouts are dead. Discover how to build secure, agent-driven commerce flows using Shared Payment Tokens and HTTP 402 microtransactions.

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#1 about 2 min

Replacing website forms with agentic commerce

AI agents bypass traditional user interface checkouts by relying entirely on structured data to complete transactions.

#2 about 3 min

Structuring product catalog data for AI agent discovery

Providing agents with detailed JSON properties and explicitly stated constraints ensures accurate product recommendations.

#3 about 3 min

Demonstrating a conversational AI shopping experience

A live demonstration illustrates an agent narrowing product choices, requesting payment info, and completing a real transaction.

#4 about 5 min

Core architecture and reasoning loops of AI agents

An LLM brain interacts with commerce tools and system prompt instructions within a continuous execution loop to orchestrate actions.

#5 about 3 min

Controlling agent behavior via system personas

Configuring an honest versus a commission-driven system prompt fundamentally alters the underlying sales interactions.

#6 about 4 min

Standardizing agent discovery with Universal Commerce Protocol

Maintaining a standardized text manifest and shared open-source language solves the multi-merchant integration bottleneck.

#7 about 4 min

Securing delegated purchases via Shared Payment Tokens

Agents can transact on a customer's behalf using secure, bounded tokens that govern specific transaction limits.

#8 about 6 min

Funding agent capabilities using machine-to-machine microtransactions

Employing the Machine Payments Protocol and HTTP 402 codes allows agents to spontaneously pay for tools and APIs.

#9 about 1 min

Clarifying compliance for UK and EU payment regulations

The regional rollout for Shared Payment Tokens requires alignment with strong customer authentication and PSD2 regulations.

Matching moments

54 sec

Integrating artificial intelligence into user agentic commerce

Brian Whippo Brian Whippo · World Congress 2025

53 sec

Autonomous AI agents and the need for digital payments

Brian Whippo Brian Whippo · World Congress 2026 Europe

2:47 min

Transitioning toward autonomous agentic commerce

Annabella Bassler Annabella Bassler +3 · World Congress 2026 Europe

2:34 min

Enabling transactions and visual interactions through specialized protocols

Aaron Koivunen Aaron Koivunen · Europe 2026 Virtual

4:42 min

Predicting future retail experiences and avoiding technology hype

Alejandro Saucedo Alejandro Saucedo +2 · World Congress 2025

2:52 min

Handling authentication and transaction flows for autonomous agent buyers

Aaron Koivunen Aaron Koivunen · Europe 2026 Virtual

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