This plugin enables Yoast SEO Support for WPGraphQL.
Exposing WooCommerce as a GraphQL API
Add WPGraphQl support for redirects made using the popular Redirection Plugin
Additionally, WPGatsby has a settings page to connect your WordPress site with your Gatsby site:
Powerful and flexible GraphQL server for WordPress. Access any piece of data (posts, users, comments, tags, categories, etc) from your app via a GraphQL API.