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DimensionPostgreSQL MCP ServerRead-only DB access for safe analysisDBHubBytebase's official, minimalist two-tool database MCP server
FMRS68 / 100 · C74 / 100 · B
Reliability15 / 2013 / 20
Security and permissions16 / 2013 / 20
Maintenance10 / 2016 / 20
Documentation14 / 2015 / 20
Setup experience13 / 2017 / 20
Best for
  • Analysts and developers exploring PostgreSQL data through natural language
  • Teams exposing schema and query access through a dedicated read-only account
  • Scenarios wanting the smallest possible tool count and lowest context-window overhead for database access
  • Cases needing to grant non-technical teammates safe, read-only database access
Not for
  • Workflows that require writes, migrations, or database administration
  • Sensitive databases whose query results cannot enter a third-party model context
  • Scenarios needing database administration operations (creating indexes, altering schema) rather than just querying (DBHub is positioned as a query tool, not a DBA management tool)
Required permissions
  • Network access to PostgreSQL
  • A dedicated read-only account with SELECT access to the intended schemas
  • Requires a database connection string (DSN), which may contain sensitive credentials
  • execute_sql can run arbitrary SQL (including writes) by default — must be constrained via read-only mode or the underlying database account's own permissions
Risks and side effects
  • Query results may contain personal or business-sensitive data
  • Complex read queries can still consume significant resources; use timeouts and a read replica
  • Under default settings, if the connected database account has write access, execute_sql could let the assistant perform an unintended write or delete — pair with a read-only database account in production
  • The DSN contains a plaintext password — pay attention to the access permissions on wherever the config is stored
Supported clientsClaude Desktop, Cursor, ClineClaude Desktop, Claude Code, VS Code, Cursor, Zed
Tools42