x402 Adopters
Curated catalog of who actually speaks the x402 HTTP-payment protocol today. The universe is intentionally small: live production publishers, canonical SDKs, deployable gateways, and reference implementations. Submit additions via GitHub issues with a verifiable link.
Category:
For agents: same data at /api/x402-adopters. Filter with ?category=publisher|sdk|gateway|reference|spec or ?status=live|announced|sdk|gateway. Free, no auth, cached 10 min. Spec at x402.org.