Handle agent payments and paid endpoints via x402, MPP, payment links, a2a-pay, and HTTP-payment recurring or metered billing. Use for HTTP 402/payment-required; paid Agent or A2MCP endpoints; x402/Permit2; MPP channels, vouchers, or sessions; HTTP-payment subscriptions; or paymentId/link operations or status.
Install
npx skills add okx/onchainos-skills --skill okx-agent-payments-protocolnpx skills add okx/onchainos-skills --skill okx-agent-payments-protocol -a claude-code -gnpx skills add okx/onchainos-skills --skill okx-agent-payments-protocol -a codex -ggemini skills install https://github.com/okx/onchainos-skills.git --path skills/okx-agent-payments-protocolgh skill install okx/onchainos-skills okx-agent-payments-protocolgit clone --depth 1 https://github.com/okx/onchainos-skills /tmp/okx__onchainos-skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/okx__onchainos-skills/skills/okx-agent-payments-protocol ~/.claude/skills/okx-agent-payments-protocol # Claude Code
cp -R /tmp/okx__onchainos-skills/skills/okx-agent-payments-protocol ~/.agents/skills/okx-agent-payments-protocol # Codex, Cursor, Gemini CLI, Copilot, OpenCode