Structured Data Tester

Seo REST API MCP

Validate JSON-LD structured data (given directly or extracted from HTML <script type="application/ld+json"> blocks) and return, per detected schema.org type, the required and recommended properties that are present or missing, a pass flag, and rich-result eligibility for 15 supported types. Does not fetch URLs.

This page documents the MCP tool findutils:structured_data_tester. See the REST reference →

Use in the browser View as Markdown

Call it over MCP

Tool name findutils:structured_data_tester · no API keys · 120 requests/min per IP

Claude Code

claude mcp add findutils --transport http https://mcp.findutils.com/

Claude Desktop — claude_desktop_config.json

{
  "mcpServers": {
    "findutils": {
      "url": "https://mcp.findutils.com/"
    }
  }
}

Raw JSON-RPC (any MCP client) — verified example

curl -X POST https://mcp.findutils.com/ \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "tools/call",
    "params": {
      "name": "structured_data_tester",
      "arguments": {
        "json_ld": "{\"@context\":\"https://schema.org\",\"@type\":\"Person\",\"name\":\"Jane Doe\"}"
      }
    }
  }'

Input schema

Argument	Type	Required	Description
json_ld	string	no	A JSON-LD document: one object, an array of objects, or an object with @graph. Use this OR html.
html	string	no	HTML source. Every <script type="application/ld+json"> block is extracted and validated.

Example arguments (verified)

{
  "json_ld": {
    "@context": "https://schema.org",
    "@type": "Person",
    "name": "Jane Doe"
  }
}

Arguments that carry JSON as a string are shown decoded for readability. The Copy button copies the exact wire arguments.

Also a REST endpoint

The same tool answers plain HTTP at POST /api/tools/structured-data-tester/execute — no key, 60 requests/min.

Open the REST reference for Structured Data Tester →

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