I've been working on an open source implementation of a Stellate (https://stellate.co) like GraphQL cache service, and it's finally hit v0.1

TL,DR;

It is a cached proxy for your GraphQL API with automatic purging.

Deploy it in front of GraphQL API, and it will start caching all requests passing through it. Your cache gets automatically invalidated if anything changes in your application (when you send a mutation) Queries are only sent to origin if there is a cache MISS