io.github.neo4j-contrib/mcp-neo4j-cypher
A simple Neo4j MCP server that allows you to run Cypher queries against a Neo4j database.
Verdict not yet evaluated for this tool. The semantic screen takes adversarial cases first; coverage rolls out as the corpus expands (15/150 labels to graduation). The deterministic conformance probe is built but has not yet run on the public corpus, so a recorded verdict here is REVIEW or UNVERIFIED, never a clearing ALLOW. Until a verdict is recorded, an agent should treat this tool as not-yet-cleared and fall back to its own checks. Method: the eval, four-state verdict, honest limits.
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NEO4J_URINeo4j connection URI
NEO4J_USERNAMENeo4j username
NEO4J_PASSWORDNeo4j password
NEO4J_DATABASENeo4j database name
NEO4J_NAMESPACETool namespace prefix
NEO4J_RESPONSE_TOKEN_LIMITMaximum tokens for read query responses
NEO4J_READ_TIMEOUTTimeout in seconds for read queries
NEO4J_READ_ONLYAllow only read-only queries (true/false)
NEO4J_SCHEMA_SAMPLE_SIZESchema sample size
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