x402 Bazaar Listing Monitor MCP Server

by acjlabs Your server? Claim it

answering

x402 Bazaar Listing Monitor is answering right now. Last checked moments ago. It exposes 1 tools. Last commit 8 Aug 2026.

Checks x402 Bazaar resource listings against the public discovery catalog and flags drops.

Uptime history 91 days of history · worst day 93%

91 days agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

217 ms

Response time

average over 24h

Stars

last commit 8 Aug 2026

x402 Bazaar Listing Monitor missed one check this week

Everything else answered, so this is steady rather than shaky. We check every 15 minutes, which is how a one-off gets told apart from the start of a pattern, and how you hear about the next one within the hour instead of from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 0 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add x402-listing-monitor --transport http https://x402-listing-monitor.acjlabs.com/mcp

Settings → Connectors → Add custom connector, then paste this address

https://x402-listing-monitor.acjlabs.com/mcp

~/.codex/config.toml

[mcp_servers.x402-listing-monitor]
url = "https://x402-listing-monitor.acjlabs.com/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "x402-listing-monitor": {
      "url": "https://x402-listing-monitor.acjlabs.com/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "x402-listing-monitor": {
      "type": "http",
      "url": "https://x402-listing-monitor.acjlabs.com/mcp"
    }
  }
}

Available tools 1

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

listing

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 or missing — 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.

Endpoints

URL	Transport	State	Latency	Checked
https://x402-listing-monitor.acjlabs.com/mcp	streamable-http	answering	194 ms	0 min ago

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x402 Bazaar Listing Monitor — questions

Answers built from our own checks of this server.

What can x402 Bazaar Listing Monitor do?

It exposes 1 tools, read directly from the server on our last check. Among them: check_listing_health. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is x402 Bazaar Listing Monitor working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 217 ms. The bar chart above shows every period we have measured.

How do I connect x402 Bazaar Listing Monitor?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does x402 Bazaar Listing Monitor need an API key?

No. x402 Bazaar Listing Monitor completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 1 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is x402 Bazaar Listing Monitor?

It answers our handshake in 217 ms on average, which is faster than 66% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is x402 Bazaar Listing Monitor open source?

We cannot say either way: 1 stars on GitHub and 1 open issue, but we could not determine the licence, and without one the code is not open source by default.