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…
What it can do
- Check Listing Health: Checks whether a seller's x402 Bazaar resources are currently listed under the given payTo address in the public discovery catalog. Flags each resource as listed, missing, or pay
What data it sees
Do you need an account
No: the server works without sign-in
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
Server tool list (1)
Raw names from tools/list. Only developers need these.
| check_listing_health | Checks whether a seller's x402 Bazaar resources are currently listed under the given payTo address in the public discovery catalog. Flags each resource as listed, missing, or payTo-mismatched — the same per-seller diff the registered poller runs on a schedule, run once on demand for a payTo/resources pair whether or not it has been registered with this service. |