Back
Coinbase Launches x402 V2 Stablecoin Payment Protocol for AI Agents

Coinbase Launches x402 V2 Stablecoin Payment Protocol for AI Agents

The updated x402 V2 enables multi-chain routing, wallet sessions, and discovery, allowing AI agents and web services to process HTTP 402 payments across crypto and legacy networks.

Fact Check
The evidence strongly and consistently supports the truthfulness of the statement. Multiple high-authority sources corroborate every key component of the claim. A highly credible news report from CoinDesk, a major crypto-focused publication, directly states that Coinbase launched the x402 V2 protocol for AI agent payments using stablecoins. This is independently confirmed by another news article from the Phemex crypto exchange, which reports the same set of facts. Furthermore, the link between Coinbase and the protocol is solidified by a social media post from a Coinbase software engineer who confirmed working on the x402 V2 upgrade. The official protocol website serves as a primary source confirming the launch of x402 V2 itself. The only low-authority source is irrelevant and does not contradict the findings. The consistency across multiple credible and independent sources makes the statement highly likely to be true.
Summary

Coinbase-backed x402 V2 introduces multi-chain routing, wallet session management, and enhanced discovery features, enabling AI agents and web services to settle HTTP 402 payments seamlessly across both cryptocurrency and traditional payment systems. Developed by Coinbase for autonomous machine-to-machine transactions, x402 V2 builds on prior capabilities by integrating support for multiple blockchain networks and legacy rails, alongside standardized network and asset formats and secure extensions for optional data sharing.

Terms & Concepts
  • Stablecoin: A cryptocurrency pegged to a stable asset, such as the U.S. dollar, to reduce price volatility.
  • Multi-chain: The ability for a protocol or application to operate across multiple blockchain networks simultaneously.
  • HTTP 402: An HTTP status code reserved for 'Payment Required,' often used to signal that payment must be made before accessing a resource.