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 HTTP endpoint POST /api/tools/structured-data-tester/execute. See the MCP reference →
Call it over REST
POST https://api.findutils.com/api/tools/structured-data-tester/execute · no API keys · 60 requests/min per IP
Execute — verified arguments
curl -X POST https://api.findutils.com/api/tools/structured-data-tester/execute \
-H "Content-Type: application/json" \
-d '{
"json_ld": "{\"@context\":\"https://schema.org\",\"@type\":\"Person\",\"name\":\"Jane Doe\"}"
}'Parameter schema for this endpoint
curl https://api.findutils.com/api/tools/structured-data-testerInput 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 an MCP tool
Claude, Cursor, and any MCP client can call this tool as
findutils:structured_data_tester after one connect command.
Connect once
claude mcp add findutils --transport http https://mcp.findutils.com/More Seo tools
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