Verify Neo4j Cypher Queries With CyVer

CyVer is an open-source Python library developed to validate Cypher queries in Neo4j graph databases, focusing on syntax, schema, and property correctness. It emerged from the challenges faced in generating Cypher queries with large language models (LLMs), where minor errors could disrupt functionality. The library offers three main validators—Syntax, Schema, and Properties—that help ensure queries are robust, safe, and aligned with the database schema. CyVer v2 introduces features like metadata reporting, offering detailed error explanations and correction suggestions. The validators work by testing queries against the Neo4j Movies database, showcasing how errors are detected and explained. The initiative, supported by the Neo4j team and demonstrated at Neo4j Live, highlights the significance of query validation in complex graph-based systems, offering resources and encouraging contributions from the open-source community on GitLab.