This is a deprecated redirect stub. OKX merged the old standalone a2a payment skill into their unified `okx-agent-payments-protocol` dispatcher around version 2.0.0. If you land here, you're hitting a legacy reference from old docs or transcripts. The actual payment link creation, status checks, and paymentId flows now live in Path B of the successor skill's SKILL.md and the a2a_charge.md playbook. The stub exists solely to catch outdated invocations and point you to the right place. Don't try to execute anything from here, just load `okx-agent-payments-protocol` via the Skill tool and follow that instead.
npx skills add https://github.com/okx/onchainos-skills --skill okx-a2a-payment