x402 Bazaar Listing Monitor

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

Should I use this

Quality & Safety

A
Description quality
100%
Schema completeness
80%
Naming quality
100%
Poisoning risk
100%
Permission match
100%
Protocol compliance
100%

Based on automated analysis of tool definitions and protocol compliance.

Context Cost

~163Tokens (tool definitions)
~774 BTypical response size
Minimal attention impact (0.13% of 128k context)

This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.

Install

One-Click Install

Add this to your `claude_desktop_config.json` file:

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

Remote endpoints

https://x402-listing-monitor.acjlabs.com/mcpstreamable-http

What it can do

Tool inventory

Tools (1)

🟢 Read-only🟡 Write🔴 Delete⚪ Unknown
🟢check_listing_health(payTo, resources)

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.

Input Schema

{
  "type": "object",
  "properties": {
    "payTo": {
      "type": "string",
      "pattern": "^0x[a-fA-F0-9]{40}$"
    },
    "resources": {
      "minItems": 1,
      "maxItems": 200,
      "type": "array",
      "items": {
        "type": "string"
      }
    }
  },
  "required": [
    "payTo",
    "resources"
  ],
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Community

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Evidence

Recent observations

verifiedversion not recorded1 tools
verifiedversion not recorded1 tools