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DimensionDBMCP Database MCP ServerSingle-binary SQL database MCP server with built-in PII redaction and write-preventionDBHubBytebase's official, minimalist two-tool database MCP server
FMRS67 / 100 · C74 / 100 · B
Reliability9 / 2013 / 20
Security and permissions15 / 2013 / 20
Maintenance13 / 2016 / 20
Documentation17 / 2015 / 20
Setup experience13 / 2017 / 20
Best for
  • Users who need safe, read-only AI access to SQL databases
  • Teams with data-privacy requirements needing PII redaction
  • Developers wanting a zero-dependency, single-binary deployment
  • Environments using multiple database backends
  • 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
  • Users who cannot supply or configure database credentials
  • Users expecting unrestricted write access without understanding write-mode risks
  • Users of databases other than MySQL/MariaDB, PostgreSQL, or SQLite
  • 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
  • Requires database host, port, username, and password (DB_PASSWORD treated as a secret)
  • Read-only by default; disabling it lets the AI execute writes, and create/drop databases and tables
  • SSL/TLS connections require DB_SSL_CA/CERT/KEY certificate paths
  • Optional NER redaction requires a local ONNX model directory
  • 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
  • With read-only mode disabled, the AI can modify or delete data directly, including dropDatabase/dropTable
  • PII redaction is off by default; sensitive data in query results goes to the LLM unredacted unless enabled
  • Regex redaction is not foolproof, and ML/NER detection depends on model quality; v1 is English-only
  • HTTP mode may expose database access if allowed-origins/allowed-hosts are misconfigured
  • EXPLAIN ANALYZE actually executes the query, so beware of side effects and cost
  • 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, Claude CodeClaude Desktop, Claude Code, VS Code, Cursor, Zed
Tools132