Neo4j

Edit~/Library/Application Support/Claude/claude_desktop_config.json:

bun run build && bun run inspect

This opens the Inspector UI in your browser where you can call any tool interactively and inspect request/response shapes.

src/ ├── config.ts # Effect Config — NEO4J_URL, NEO4J_PASSWORD ├── main.ts # Entry point — ManagedRuntime + StdioServerTransport ├── domain/ │ ├── Neo4jClient.ts # Context.Tag service interface │ ├── errors.ts # Neo4jError, QueryError, NodeNotFoundError │ ├── models.ts # Schema.Class models (QueryResult, SchemaInfo, IndexInfo, …) │ ├── query.test.ts # Domain query tests (uses Neo4jClientTest) │ └── schema.test.ts # Domain schema tests (uses Neo4jClientTest) ├── infra/ │ ├── Neo4jClientLive.ts # Layer.scoped — neo4j-driver connection with acquireRelease │ └── Neo4jClientTest.ts # In-memory Ref-based test adapter └── mcp/ ├── server.ts # McpServer wired to ManagedRuntime ├── utils.ts # formatSuccess, formatError └── tools/ # query.ts, schema.ts, info.ts

Neo4j graph database server (schema + read/write-cypher) and separate graph database backed memory

Query a hybrid graph (Neo4j) and vector (Qdrant) database for powerful semantic and graph-based document retrieval.

Connects to Neo4j graph databases with ability to use GDS functions ( when available), a read only mode , and set the sample size for schema detection

Integrate the Neo4j graph database with clients through natural language interactions.

Interact with and explore graph data in a Neo4j database.

Cognitive memory for AI agents - persistent semantic memory with knowledge graph and adaptive recall

A server for interacting with ArangoDB, a native multi-model database system.

Manage graph-based data models, schemas, and ontologies with CoreModels. 16 MCP tools for visual data modeling with full JSON Schema support.