neo4j-mcp-readonly
Enables read-only access to Neo4j databases via the Model Context Protocol, allowing safe Cypher queries, schema exploration, and database statistics.
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The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.
These names and descriptions are the publisher's own, read from the source code. We print them as written. Our assessment is the findings above, not this list.
neo4j_queryExecute read-only Cypher queries against the Neo4j database. Only MATCH, RETURN, WITH, UNWIND, and read-only CALL procedures are allowed.
neo4j_schemaGet the database schema including node labels, relationship types, and property keys
neo4j_test_connectionTest the connection to the Neo4j database
neo4j_node_countGet the count of nodes by label or total count of all nodes
neo4j_relationship_countGet the count of relationships by type or total count of all relationships
neo4j_database_infoGet general database information including version, edition, and basic statistics
neo4j_indexesList all indexes in the database
neo4j_constraintsList all constraints in the database
neo4j_sample_dataGet sample data from the database for a specific label or relationship type
neo4j_node_propertiesGet all properties and their types for a specific node label
neo4j_relationship_propertiesGet all properties and their types for a specific relationship type
Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default
Tool annotations
No tools have read-only/destructive annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
11/11 tools missing one or more hints — neo4j_query (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); neo4j_schema (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); neo4j_test_connection (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +8 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
Tests exist
No test files found
Add tests that exercise each declared tool.
Production dependencies are patched
0 critical, 1 high severity in production deps — @modelcontextprotocol/sdk@0.4.0 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
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