ArcadeDB

Multi-model database with built-in MCP support for SQL, Cypher, Gremlin, and GraphQL queries.

ArcadeDB is a multi-model database that natively supports graph, document, key-value, search, vector, and time-series data models. Its built-in MCP server enables querying across six languages including SQL, Cypher, Gremlin, and GraphQL. Compatible with PostgreSQL, Redis, and MongoDB wire protocols for seamless integration.