{ "data": { "tool": { "category": "observability", "endpoint": "https://x402-listing-monitor.acjlabs.com/mcp", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/acjlabs-x402-listing-monitor.json", "kind": "mcp", "listed": "indexed", "liveUrl": "https://www.anchorterminal.com/api/v1/live/acjlabs-x402-listing-monitor.json", "markdownUrl": "https://www.anchorterminal.com/tools/acjlabs-x402-listing-monitor.md", "mcpTools": { "check": { "checker": "anchor-check/1.0", "totalTokens": 177, "counts": { "error": 0, "note": 1, "warn": 2 }, "findings": [ { "rule": "TC11", "severity": "warn", "tool": "check_listing_health", "message": "none of its 2 parameters has a description", "fix": "Describe each one: format, units, an example, and what happens when it's left out." }, { "rule": "TC16", "severity": "warn", "tool": "check_listing_health", "message": "no readOnlyHint or destructiveHint", "fix": "Its name starts with \"check\"; if it only reads, set readOnlyHint: true so harnesses can run it without asking." }, { "rule": "TC24", "severity": "note", "message": "1 of 1 tools have no outputSchema", "fix": "Declare outputSchema for tools that return structured data, and return structuredContent that matches it." } ] }, "checkedAt": "2026-10-04T22:21:50Z", "count": 1, "schemaTokens": 177, "status": "ok", "tools": [ { "name": "check_listing_health", "description": "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.", "inputSchema": { "$schema": "http://json-schema.org/draft-07/schema#", "properties": { "payTo": { "pattern": "^0x[a-fA-F0-9]{40}$", "type": "string" }, "resources": { "items": { "type": "string" }, "maxItems": 200, "minItems": 1, "type": "array" } }, "required": [ "payTo", "resources" ], "type": "object" } } ] }, "name": "x402 Bazaar Listing Monitor", "note": "Indexed from the official MCP registry: facts and our own checks, not reviewed, so no score, grade or rank.", "packages": null, "pageJsonUrl": "https://www.anchorterminal.com/tools/acjlabs-x402-listing-monitor.json", "popularity": { "githubStars": 1 }, "registryName": "com.acjlabs/x402-listing-monitor", "remotes": [ { "type": "streamable-http", "url": "https://x402-listing-monitor.acjlabs.com/mcp" } ], "repository": "https://github.com/acjlabs/x402-listing-monitor", "reviewed": false, "slug": "acjlabs-x402-listing-monitor", "source": "the official MCP registry", "sourceUrl": "https://registry.modelcontextprotocol.io/v0.1/servers?search=com.acjlabs/x402-listing-monitor", "summary": "Checks x402 Bazaar resource listings against the public discovery catalog and flags drops.", "updatedAt": "2026-08-02T04:54:40Z", "url": "https://www.anchorterminal.com/tools/acjlabs-x402-listing-monitor", "vendor": "acjlabs.com", "vendorUrl": "https://acjlabs.com/products", "version": "0.1.0", "websiteUrl": "https://acjlabs.com/products", "where": "hosted", "why": [ "vendor" ] } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/tools/acjlabs-x402-listing-monitor", "json": "https://www.anchorterminal.com/tools/acjlabs-x402-listing-monitor.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/tools/acjlabs-x402-listing-monitor.md", "slim": "https://www.anchorterminal.com/tools/acjlabs-x402-listing-monitor.min.md" }, "markdown": "# x402 Bazaar Listing Monitor\n\n\u003e Indexed, not reviewed: facts from the official MCP registry and our own checks. No score, grade or rank, and not in the rankings until the panel reviews it. How the index works: https://www.anchorterminal.com/indexed/\n\n- Kind: MCP server, by acjlabs.com (https://acjlabs.com/products)\n- Category: Observability \u0026 incidents (https://www.anchorterminal.com/categories/observability.md)\n- Listed because: It's published in the registry under acjlabs.com, a namespace the registry only gives to whoever proves they control that domain.\n- What the official MCP registry says: Checks x402 Bazaar resource listings against the public discovery catalog and flags drops.\n\n## Facts\n\n- MCP registry: `com.acjlabs/x402-listing-monitor` 0.1.0\n- Endpoint: https://x402-listing-monitor.acjlabs.com/mcp (streamable HTTP)\n- Source: https://github.com/acjlabs/x402-listing-monitor\n- Website: https://acjlabs.com/products\n- GitHub stars: 1\n- Registry entry updated: 2026-08-02\n\n## Tools\n\n- Tools it lists (1, about 177 tokens of context, `tools/list` without credentials over MCP 2025-11-25, checked 2026-10-04 22:21 UTC):\n - `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…\n- How its tools read to an agent (0 errors, 2 warnings, 1 note, about 177 tokens; rules at https://www.anchorterminal.com/check.md; not part of the score):\n - warn TC11 check_listing_health: none of its 2 parameters has a description\n - warn TC16 check_listing_health: no readOnlyHint or destructiveHint\n - note TC24 server: 1 of 1 tools have no outputSchema\n\n- JSON: https://www.anchorterminal.com/api/v1/tools/acjlabs-x402-listing-monitor.json\n- Being indexed says nothing about quality, and nobody can pay for it. Ask for a review: https://www.anchorterminal.com/builders/#claiming\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-04", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.3", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Terminal", "url": "https://www.anchorterminal.com/tools/" }, { "name": "Indexed", "url": "https://www.anchorterminal.com/indexed/" }, { "name": "x402 Bazaar Listing Monitor", "url": "" } ], "description": "x402 Bazaar Listing Monitor, an MCP server by acjlabs.com, listed from the official MCP registry. Indexed, not reviewed: facts and our own checks, no score or ranking. Checks x402 Bazaar resource listings against the public discovery catalog and flags drops.", "facts": [ "not reviewed", "not ranked", "facts only" ], "h1": "x402 Bazaar Listing Monitor", "image": "https://www.anchorterminal.com/assets/og/indexed.png", "path": "/tools/acjlabs-x402-listing-monitor", "published": "", "section": "indexed", "title": "x402 Bazaar Listing Monitor, indexed from the official MCP registry", "toc": null, "updated": "2026-10-04", "url": "https://www.anchorterminal.com/tools/acjlabs-x402-listing-monitor" }, "tokens": { "markdown": 650, "slim": 580 }, "version": 1 }