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.
Machine-readable JSON/api/x402-adoptersCategory:
Looking for the protocol overview, integration recipe, and FAQ? See the x402 hub. This page is the filterable adopter directory; the hub is the canonical landing page for the standard.
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.