Over 110 developers in Berlin built AI-agent payment solutions using Algorand (ALGO) tech during the Agentic Commerce x402 Hackathon, held on June 6–7. The 36-hour event saw 42 projects submitted, with a $20,000 USDC prize pool incentivizing participants. Algorand, with its low-cost, high-throughput blockchain, is positioning itself as a critical infrastructure layer for these transactions, and ALGO traded at $0.0990 as of June 17. Participants tackled challenges like establishing trust between autonomous agents, with solutions including reputation systems, validation layers, and audit trails. Teams experimented with EURD stablecoin payments for merchant checkout, freelance work, and physical mail services. Standout innovations included agent wallets with spending controls, cross-chain routing, and payment proxies. One prototype enabled electric vehicles to pay for solar energy in real time, while another automated parking payments from smart cars. Winners included Erster (1st place, Existing Projects) with a pay-per-evaluation trust tool ($3,000 USDC), Juicebag Mail (1st place, New Projects) for sending physical mail paid per letter ($2,500 USDC), and AlgoEUPay (1st place, Infrastructure) with a Euro checkout system ($2,500 USDC). Bonus prizes rewarded integrations like "SingIt" for voice-command spending and "Basma’s AgentID" for on-chain reputation scores.