Supercapybara / Railway Templates
Neo4j
Neo4j is the most widely used open-source graph database. It stores data as nodes and relationships and is queried with Cypher. This template runs Neo4j Community with a persistent volume, a generated password, and a public HTTPS endpoint for the Query API.
Disclosure: deploy links carry the author's Railway referral code — the author receives a usage kickback when you deploy. The template itself is free to deploy; Railway usage charges apply.