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DimensionMCP Server MotherduckSQL analytics and data engineering for AI Assistants and IDEsMCP ClickHouseConnect ClickHouse to your AI assistants
FMRS60 / 100 · C79 / 100 · B
Reliability7 / 2012 / 20
Security and permissions13 / 2018 / 20
Maintenance12 / 2017 / 20
Documentation15 / 2017 / 20
Setup experience13 / 2015 / 20
Best for
  • Data scientists and analysts needing SQL analytics on local or remote databases
  • Developers wanting AI-assisted data engineering within IDEs
  • Teams needing to quickly explore DuckDB files
  • Users who want to incorporate MotherDuck cloud capabilities
  • Teams already using ClickHouse who want AI assistants to access data directly.
  • Scenarios requiring fast, read-only data queries and schema exploration.
Not for
  • Users who want a fully managed remote MCP service without local installation
  • Production environments with strict security requirements (default read-only mode still allows local filesystem access)
  • Third-party access without additional security configurations
  • Scenarios requiring write access to the database without explicit opt-in.
  • Production environments with stringent security requirements that avoid default permission settings.
Required permissions
  • Access to local filesystem (to read DuckDB files or export data)
  • Reads environment variables for MotherDuck tokens and AWS credentials
  • Executes SQL queries in read-only mode by default; write access must be explicitly enabled
  • Optionally switches database connections at runtime (requires --allow-switch-databases)
  • Requires read-only access to ClickHouse database (default).
  • Optional: write access via CLICKHOUSE_ALLOW_WRITE_ACCESS.
  • Optional: destructive operations via CLICKHOUSE_ALLOW_DROP.
Risks and side effects
  • If write mode is enabled, data in databases could be modified or deleted
  • By default, when exposed to third parties, local filesystem or sensitive data may be accessed
  • MotherDuck tokens or AWS credentials could be leaked if misconfigured
  • Queries may consume significant resources (memory, CPU) or time out
  • If write access is enabled, AI might make unintended modifications.
  • If DROP access is enabled, data deletion could occur accidentally.
  • Credentials may be exposed via environment variables.
Supported clientsClaude Desktop, Claude Code, Codex, Gemini CLI, Cursor, VS Code, KiroClaude Desktop
Tools54