> ## Documentation Index > Fetch the complete documentation index at: https://docs.schemagen.io/llms.txt > Use this file to discover all available pages before exploring further. # CMS Embed API: Server-Side JSON-LD Schema Delivery > Deliver JSON-LD schemas server-side using SchemaGen's Embed API—ideal for WordPress, Shopify Liquid, PHP templates, and performance-critical sites. The SchemaGen Embed API is an alternative schema delivery method for environments where the JavaScript SDK is not suitable. Instead of loading a client-side script, your CMS template or server fetches a URL from SchemaGen at request time and injects the returned HTML — a ` ``` Both the SDK and the Embed API use the same client ID — if you are migrating from one delivery method to the other, no changes are needed to your schema configurations in the dashboard. ## How schema matching works When the Embed API receives a request, it looks up all schemas you have published for the exact URL provided in the `url` parameter. Make sure the URL you pass matches the canonical URL of the page as you have configured it in the SchemaGen dashboard. Including or excluding trailing slashes, query strings, or `www` inconsistently will result in no schemas being returned. Always pass the canonical URL of the page — the same URL you used when deploying the schema in the dashboard. For WordPress, this is `get_permalink()`. For Shopify, use the `canonical_url` variable as shown in the Liquid example.