With Hasura Cloud, you can add your GraphQL servers instantly to Hasura and then make it production-ready with Hasura's out-of-the-box features.
How it works
Step 1: Add your GraphQL server as a Remote Schema into Hasura
Step 2: Forward the relevant headers to Hasura
Step 3: Define the permission rules
Step 4: Join data between the Remote Schema and the existing schema of your GraphQL API
You can then do a number of things to make your existing GraphQL API production-ready
<ul>
<li>Secure the existing GraphQL API by adding authentication to your GraphQL server. This is a no-code process where you can declaratively add permission rules and more.</li>
<li>Cache the existing GraphQL API by adding the <code>@cached</code> directive to get automatic edge caching for free.</li>
<li>Monitor and observe the existing GraphQL API using the Hasura console. Monitor errors, get a detailed breakdown of individual requests, and more.</li>
<li>Via Remote Joins, establish relationships between other data sources, other databases, or any other GraphQL source.</li>
</ul>
<a target="_blank" href="https://hasura.io/graphql/production-ready-existing-apis/">More details about making existing GraphQL APIs production-ready with Hasura can be found here.</a>

With Hasura Cloud, you can add your GraphQL servers instantly to Hasura and then make it production-ready with Hasura's out-of-the-box features.

**How it works**
Step 1: Add your GraphQL server as a Remote Schema into Hasura
Step 2: Forward the relevant headers to Hasura
Step 3: Define the permission rules
Step 4: Join data between the Remote Schema and the existing schema of your GraphQL API

You can then do a number of things to make your existing GraphQL API production-ready
- Secure the existing GraphQL API by adding authentication to your GraphQL server. This is a no-code process where you can declaratively add permission rules and more.
- Cache the existing GraphQL API by adding the `@cached` directive to get automatic edge caching for free.
- Monitor and observe the existing GraphQL API using the Hasura console. Monitor errors, get a detailed breakdown of individual requests, and more.
- Via Remote Joins, establish relationships between other data sources, other databases, or any other GraphQL source.

[More details about making existing GraphQL APIs production-ready with Hasura can be found here.](https://hasura.io/graphql/production-ready-existing-apis/) 

Make Existing GraphQL APIs Production-ready with Hasura