Cardano integrates x402 SDK for API payments in ADA
- —Integration into the official x402 repository completed around September 9, 2026
- —Payment goes through HTTP code 402 without accounts, API keys or subscriptions
- —Cardano mainnet, preprod and preview testnets supported
- —ADA and stablecoins USDM, DJED, iUSD available for settlement
Why it matters: Cardano is embedding itself into the machine payments standard for AI agents, which could expand demand for ADA and native stablecoins.
Source: Crypto Briefing