Query and manage 20+ databases—SurrealDB, ArangoDB, Virtuoso, CouchDB, Cassandra, and others—through a single unified MCP interface. For developers building multi-database applications or needing flexible data access across heterogeneous backends.
io.github.hyperpolymath/poly-db-mcp
Local install
STDIO
No auth required
How models use it and what it is built for.
Query and manage 20+ databases—SurrealDB, ArangoDB, Virtuoso, CouchDB, Cassandra, and others—through a single unified MCP interface. For developers building multi-database applications or needing flexible data access across heterogeneous backends.
Local install — runs as a subprocess.
Where to find authoritative docs and source for Polyglot Database.
Paste any of these into Agent Studio after connecting Polyglot Database.
Common questions about connecting and running Polyglot Database.
What databases does poly-db-mcp support?
The server supports 20+ databases including SurrealDB, ArangoDB, Virtuoso, CouchDB, Cassandra, and others. Check the registry or documentation for the complete list of supported backends.
How do I set up poly-db-mcp?
The server runs via Docker using `docker run ghcr.io/hyperpolymath/poly-db-mcp:main`. It communicates over stdio. Ensure your MCP client is configured to launch this container and pass database connection details via environment variables.
Do I need separate credentials for each database?
Yes, you'll need to provide connection credentials for each database you want to access. These are typically passed as environment variables when launching the Docker container.
Can I query multiple databases in a single request?
The server supports unified access to 20+ databases, but query syntax and capabilities depend on the specific database backend. Consult the documentation for multi-database transaction or federation patterns.
What's the difference between poly-db-mcp and database-specific MCPs?
poly-db-mcp provides a single interface for many databases, reducing integration overhead. Database-specific MCPs may offer deeper, more optimized features for one system but require separate setup for each backend.
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