Structured Data Check MCP Server

by dawaxwx Your server? Claim it

not responding

Structured Data Check is listed as active in the registry but did not answer our last check. It exposes 1 tools.

Structured data validator in one call: extracts JSON-LD, microdata and RDFa from a URL or raw HTM...

Uptime history 44 hours of history · worst hour 0%

44 hours agonow

53.3%

Uptime 24h

49 of 92 checks

Tools

read from the server

1331 ms

Response time

average over 24h

open, no key

Access

streamable-http

Structured Data Check does not always answer

Over the last week it answered 47.9% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not 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 structured-data-check --transport http https://structured-data-check.david-cyr.workers.dev/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "structured-data-check": {
      "url": "https://structured-data-check.david-cyr.workers.dev/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.structured-data-check]
url = "https://structured-data-check.david-cyr.workers.dev/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "structured-data-check": {
      "url": "https://structured-data-check.david-cyr.workers.dev/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "structured-data-check": {
      "url": "https://structured-data-check.david-cyr.workers.dev/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.

run

run

Structured data validator in one call: extracts JSON-LD, microdata and RDFa from a URL or raw HTML, then reports the required and recommended Google Rich Results fields missing per @type. Covers the three syntaxes programmatically, where the reference validators are manual web tools with no public API.

Endpoints

URL	Transport	State	Latency	Checked
https://structured-data-check.david-cyr.workers.dev/mcp	streamable-http	answering	806 ms	0 min ago

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Structured Data Check — questions

Answers built from our own checks of this server.

What can Structured Data Check do?

It exposes 1 tools, read directly from the server on our last check. Among them: run. 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 Structured Data Check working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 49 of 92 checks got a reply (53.3%), average response time 1331 ms. The bar chart above shows every period we have measured.

The registry lists Structured Data Check as active — why does it not respond?

The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.

How do I connect Structured Data Check?

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

Does Structured Data Check need an API key?

No. Structured Data Check 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 Structured Data Check?

It answers our handshake in 1331 ms on average, which is faster than 5% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.