SmitheryListed

x402 Bazaar Listing Monitor

Scheduled watchdog for x402 sellers: polls Coinbase CDP's public Bazaar discovery catalog for your registered resources and payTo address, flagging a drop or a recovery — instead of finding out from a revenue dip days later. **How it works:** register a payTo address and resource URLs once; a scheduled poll diffs them against the live discovery catalog and alerts on a state change. The `check_listing_health` MCP tool runs the same scoped diff on demand, whether or not a payTo/resources pair has been registered. **Free tier:** 6-hour polling, drop/recovery detection with a durable alert history — no card required. Paid tiers tighten the polling interval and add escalation/rank-drop alert types. Docs & changelog: https://github.com/acjlabs/x402-listing-monitor

First seen 2 Oct 2026. Evidence as of 5 Oct 2026.