The answer
com.gadgethumans.swarm/x402-middleware
Top verified match: it matches your intent, it is the official vendor server.
fresh · published 14d ago · verified 2026-07-11tested · static-verifiedsigned passport ✓score 47/100
claude mcp add x402-middleware -- npx -y @gadgethumans/x402
Runners-up
- io.911fund.x402/x402-alphanot yet verified37/100 · weaker match