You can access the JSON-LD Schema.org Validator programmatically from your own applications by using the Apify API. You can also choose the language preference from below. To use the Apify API, you’ll need an Apify account and your API token, found in API & Integrations in Apify Console.

Python

JavaScript

CLI

OpenAPI

HTTP

MCP

1import { ApifyClient } from 'apify-client';
2
3// Initialize the ApifyClient with your Apify API token
4// Replace the '<YOUR_API_TOKEN>' with your token
5const client = new ApifyClient({
6    token: '<YOUR_API_TOKEN>',
7});
8
9// Prepare Actor input
10const input = {
11    "urls": [
12        "https://fluxlab.pl",
13        "https://github.com"
14    ]
15};
16
17// Run the Actor and wait for it to finish
18const run = await client.actor("rodorn/structured-data-validator").call(input);
19
20// Fetch and print Actor results from the run's dataset (if any)
21console.log('Results from dataset');
22console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
23const { items } = await client.dataset(run.defaultDatasetId).listItems();
24items.forEach((item) => {
25    console.dir(item);
26});
27
28// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

JSON-LD Structured Data Validator and Extractor API in JavaScript

The Apify API client for JavaScript is the official library that allows you to use JSON-LD Schema.org Validator API in JavaScript or TypeScript, providing convenience functions and automatic retries on errors.

Install the apify-client

$npm install apify-client

Other API clients include:

JSON-LD Schema.org Validator API in Python

JSON-LD Schema.org Validator API through CLI

JSON-LD Schema.org Validator OpenAPI definition

JSON-LD Schema.org Validator API

LD+JSON Schema scraper

pocesar/json-ld-schema

Extract all LD+JSON tags from the given URLs.

Paulo Cesar

459

5.0

(1)

Schema Markup & JSON-LD Validator

maximedupre/schema-markup-validator

Validate schema markup on public pages and save one audit row for each successfully fetched page. Get JSON-LD, Microdata, RDFa, metadata, issue details, and rich-result readiness signals in an Apify dataset.

Maxime Dupré

Structured Data Validator (JSON-LD / OG)

jungle_synthesizer/structured-data-validator-pro

Extract and validate structured data from any URL: JSON-LD, Open Graph, Twitter Cards, microdata, RDFa, meta tags. Local schema.org validation. Flags Google rich-result eligibility and AI-discovery readiness. Pure HTTP. Built for SEO audits and structured-data debugging at scale.

BowTiedRaccoon

Structured Data Extractor - JSON-LD, Microdata & RDFa

scrappy_garden/structured-data-extractor

Extract and validate structured data from any web page for SEO. Parses JSON-LD, detects Microdata and RDFa, highlights schema.org types, and reports common markup issues.

Bikram Adhikari

Schema Markup Scraper API - JSON-LD, Microdata & RDFa

pink_comic/schema-markup-extractor

Extract JSON-LD, Microdata, RDFa, schema.org types, canonical URL, Open Graph, Twitter Cards, and meta tags from public pages. Fast structured-data/SEO evidence with HTTP status, final URL, truncation, and malformed-block signals.

Ava Torres

Schema.org Markup Validator

scrappy_garden/schema-org-markup-validator

Validate Schema.org structured data for SEO. Parses JSON-LD, detects Microdata and RDFa, highlights schema types, and reports common issues like invalid JSON-LD, missing @type, non-schema.org @context, and missing key properties for popular schema types.

Bikram Adhikari

Schema Markup Extractor - JSON-LD SEO Data

benthepythondev/schema-markup-extractor

Extract Schema.org JSON-LD structured data from web pages, including schema types, nodes, block counts and parse errors.

Ben

Structured Data Extractor - JSON-LD, OpenGraph, Meta

piposlab/structured-data-extractor

Extract JSON-LD, OpenGraph, Twitter cards, microdata and meta tags from any URL. For SEO audits, AI dataset building and competitor research. No API key.

Alejandro Bufarini

Structured Data Extractor — JSON-LD, Microdata, RDFa

q_services/structured-data-extractor

Extract schema.org structured data (JSON-LD, Microdata, RDFa) from any URLs. Clean output for SEO audits and AI data pipelines.

Q Services

Recipe, Event & Job Data Extractor (schema.org JSON-LD)

swiftkit/structured-data

Extract clean recipes (ingredients, steps, times, nutrition), events (dates, venue, tickets), job postings (salary, location, remote), products, articles, businesses, FAQs and more from any website that publishes schema.org data for Google. One row per item, normalized fields. $1 per 1,000 items.