PostgREST
Since a Splitgraph engine is also a PostgreSQL database, tools that use PostgreSQL can work with Splitgraph tables without any changes.
One such tool is PostgREST that generates a REST API for a PostgreSQL schema. Splitgraph runs PostgREST in Splitgraph Cloud, allowing access to any Splitgraph dataset via HTTP.
You can reproduce a similar setup locally, getting PostgREST to work against a Splitgraph image.