LIVE
OPUS 4.7$15 / $75per Mtok
SONNET 4.6$3 / $15per Mtok
GPT-5.5$10 / $30per Mtok
GEMINI 3.1$3.50 / $10.50per Mtok
SWE-BENCHleader Claude Opus 4.772.1%
MMLU-PROleader Opus 4.788.4
VALS FINANCEleader Opus 4.764.4%
AFTAv1.0 whitepaper live at /whitepaper
OPUS 4.7$15 / $75per Mtok
SONNET 4.6$3 / $15per Mtok
GPT-5.5$10 / $30per Mtok
GEMINI 3.1$3.50 / $10.50per Mtok
SWE-BENCHleader Claude Opus 4.772.1%
MMLU-PROleader Opus 4.788.4
VALS FINANCEleader Opus 4.764.4%
AFTAv1.0 whitepaper live at /whitepaper
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Live status

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:
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.