Self-hosted DBHub (Postgres) MCP alternatives
DBHub already runs locally over stdio: pass a Postgres DSN and the agent runs execute_sql and search_objects from a process you control. If you want to keep the server and its connection string on your own infrastructure while changing engine, the servers below install locally too.
Each runs as a local process, so the DSN and credentials stay with you. The query still travels to whatever database you point at, but a SQLite file or a database on your own network never leaves your environment at all.
The 8 best self-hosted alternatives
DBHub runs locally against a SQLite file with execute_sql and search_objects. Zero-dependency, and the database is just a file on your disk, so nothing leaves your machine.
Set up SQLite (DBHub) →Supabase's server installs locally and runs SQL, inspects schema, reads logs, and manages edge functions against a project, from a process you operate.
Set up Supabase →Document data instead of rows fits the official MongoDB server, which runs locally and queries and manages databases plus Atlas clusters. The model differs from Postgres, but the server is yours to host.
Set up MongoDB →Analytical querying stays on your infrastructure with the official ClickHouse server, which installs locally, lists databases and tables, and runs read-only SQL against a cluster.
Set up ClickHouse →Run Elastic's official server yourself to list indices, read mappings, and run search and ES|QL against a cluster, with the server process under your control.
Set up Elasticsearch →Strings, hashes, lists, streams, JSON, and vector search run through the official Redis server, which installs locally as a self-hosted data-structure layer rather than a relational one.
Set up Redis →Graph data fits the official Neo4j server, which installs locally, introspects the graph schema, and runs read or write Cypher against any deployment, including one on your own machine.
Set up Neo4j →SingleStore's official server runs locally and executes SQL on workspaces, manages starter workspaces and Stage files, and orchestrates notebooks and jobs from a process you operate.
Set up SingleStore →
How to choose
All of these run as a local stdio process, the same property DBHub gives you on Postgres. SQLite via DBHub stays entirely on disk; Supabase, ClickHouse, Elasticsearch, Redis, Neo4j, and SingleStore keep the server local while the database may be remote. Choose by data model: SQL, documents, graph, search, or key-value, knowing the credentials always stay with you.
FAQ
- Can the DBHub Postgres MCP server be self-hosted?
- Yes. DBHub runs as a local stdio process: you give it a DSN and it connects to your Postgres from your own machine, keeping the server and connection string in your environment.
- Does self-hosting keep my data on my infrastructure?
- It keeps the server process and DSN local, which is the point for audit and access control. Whether the data is local depends on the database: a SQLite file stays on disk, while a remote Postgres or Atlas cluster is still reached over the network.