Chronicle
AI payment infrastructure is being built from scratch, right now. This is the timeline — protocol launches, governance shifts, and market milestones documented as they happen.
Protocol · Governance
x402 moves toward Linux Foundation governance
Erik Voorhees and the Coinbase team announce plans to hand x402 governance to the Linux Foundation — the same body that stewards HTTP, Linux, and Kubernetes. This signals intent to make x402 open internet infrastructure, not a Coinbase product. The protocol is designed to be network-agnostic; Base and USDC are starting points, not endpoints.
Card Networks
Visa TAP and Mastercard Agent Pay announced
Both major card networks launch competing agent authorization products within months of each other. Visa's Token Authorization Platform (TAP) and Mastercard's Agent Pay both offer programmable spend controls for AI agents built on top of existing card infrastructure. The authorization layer war begins.
→ See Authorization layer analysisIdentity
Skyfire raises and KYAPay launches
Skyfire — purpose-built for agent payment identity — raises a significant round. KYAPay launches to address the "Know Your Agent" (KYA) problem: proving that an AI agent is what it claims to be, authorized by the entity behind it, and operating within sanctioned limits. The identity layer starts to get crowded.
→ See Identity layer analysisProtocol · Open Source
x402 open-sourced by Coinbase
Coinbase releases x402 as an open-source protocol. The first live implementation runs on Base chain using USDC via ERC-3009 transferWithAuthorization. ExactProxy and UptoProxy contracts deployed. Agents can now pay for API access without accounts, OAuth, or subscriptions — a signed transaction is the credential.
→ x402 on GitHubProtocol
Stripe launches Agent Toolkit
Stripe releases official SDK for AI agents — wrapping card-network payments as LLM-callable tools. Agents can create payment intents, manage subscriptions, and list invoices via function calling. The traditional rails get their agent interface. No crypto required.
→ stripe/agent-toolkitInfrastructure · US
FedNow launches — US gets real-time bank payments
The Federal Reserve launches FedNow, enabling instant USD transfers between bank accounts 24/7. Not designed for agents, but it's the first time the US banking system can settle money in seconds. Fintechs like Modern Treasury wrap it in APIs that agents can call. The traditional rails start to get faster.
More events being added
This timeline is updated as significant milestones happen. Subscribe to the newsletter to get analysis when they do.
Newsletter archive