Gremlin‑Java8, Gremlin‑Groovy, Gremlin‑Python, Gremlin‑Scala, Gremlin‑Clojure, Gremlin‑PHP, Gremlin‑JavaScript, Gremlin‑Typeset Gremlin is a graph traversal language and virtual machine developed by Apache TinkerPop of the Apache Software Foundation. Gremlin works for both OLTP-based graph databases as well as OLAP-based graph processors. Gremlin's automata and functional language foundation enabl