Cardano Joins Solana, XRPL in AI Agent Payments Race as ADA Gains 6%

Cardano has joined the x402 payment standard through an official SDK integration, allowing applications and AI agents to pay for API calls and other online services using ADA or Cardano native tokens.

The rollout puts the network alongside Solana and XRP Ledger in the emerging market for automated internet payments, while ADA’s price has climbed about 6% in 24 hours.

Cardano Adds x402 Support for AI Agent Payments The Cardano Foundation announced on September 21 that the x402 integration was available through npm, giving developers a way to build applications and AI agents that send and receive ADA or Cardano native tokens over HTTP.

The integration makes Cardano part of the official x402 SDK, allowing an application or agent to pay for an API request without creating an account, obtaining an API key, or using a checkout page. According to the foundation, Cardano’s specification was merged in June.