{"ok":true,"method":"POST","path":"/v0/monitor/subscribe","free":true,"currently_free":true,"free_until":"2026-12-31","sku":"monitor_10_usd_mo","term_days":30,"network":"eip155:8453","asset":"USDC","payTo":"0x53831fab63ba75a958115c3b4eb598a10cfcc7e0","body":{"url":"https://your-endpoint.example/x402 (optional — domain is required)","domain":"api.example.com — seller domain bound at subscribe time (required unless URL given)","contact":"optional@email","payto":"0x… optional listing wallet","webhook":"https://optional.callback/hook"},"query":{"domain":"?domain=api.example.com (or ?seller=)"},"protocol":"x402 rail wired — free through 2026, nothing charged today","waitlist_free":"POST /v0/monitor/interest","onramp":"GET /v0/onramp","verify":"GET /v0/monitor/subscribe/verify?domain=api.example.com","badge":"https://robotsshop.io/badge.html","seller":"RobotsShop","example":"curl -s -X POST 'https://api.robotsshop.io/v0/monitor/subscribe?domain=api.example.com' -H 'content-type: application/json' -d '{}'  # free through 2026"}