Clickhouse MCP Server

DataOps ClickHouse MCP server with query optimization and pipeline monitoring

Local serverstdio

What is the Clickhouse MCP server?

Clickhouse MCP server is a locally run integration for AI assistants that speak the Model Context Protocol. DataOps ClickHouse MCP server with query optimization and pipeline monitoring.

What you get

A DataOps-focused MCP server for ClickHouse with query optimization, pipeline latency analysis, and data quality monitoring.

  • ch_query — — Execute SELECT with automatic partition pruning warnings
  • ch_explain_query — — EXPLAIN-based analysis with optimization suggestions
  • ch_table_schema — — Comprehensive table metadata (columns, keys, partitions, samples)
  • ch_pipeline_latency — — CDC pipeline per-segment latency (p50/p95/p99)
  • ch_data_quality — — Null/duplicate/gap detection with market coverage checks
  • ch_slow_queries — — Slow query detection with root cause diagnosis

Setting it up

clickhouse-dataops-mcp on PyPI is all you need. Most clients run it directly, so configuration is a few lines and a restart.

Configuration and credentials

You will need 3 environment variables: CLICKHOUSE_HOST, CLICKHOUSE_PORT, CLICKHOUSE_DATABASE. Keep credentials in your client's env block or a secrets manager rather than in a file you might commit.

Choosing this one

Among the database access options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. It is maintained by Aguantar; worth a glance at recent repository activity before you build anything load-bearing on it.

SyncDev reviews every entry in this directory against the project's own documentation before publishing, and revisits them as servers change.

Before you rely on it

  • It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.
  • MCP clients confirm each tool call by default. Leave that on until you have watched what the clickhouse mcp server does with a few real requests.

How to install the Clickhouse MCP server

{
  "mcpServers": {
    "clickhouse-dataops": {
      "command": "uvx",
      "args": ["clickhouse-dataops-mcp"],
      "env": {
        "CLICKHOUSE_HOST": "your-value",
        "CLICKHOUSE_PORT": "your-value",
        "CLICKHOUSE_DATABASE": "your-value"
      }
    }
  }
}

Add to claude_desktop_config.json, then restart Claude Desktop.

Configuration

VariableDescriptionRequired
CLICKHOUSE_HOSTEndpoint or connection string the server talks to.Optional
CLICKHOUSE_PORTConfiguration value read at startup.Optional
CLICKHOUSE_DATABASEConfiguration value read at startup.Optional

Frequently asked questions

It connects Clickhouse to MCP-compatible AI assistants such as Claude and Cursor. Instead of copying data back and forth by hand, the assistant works with Clickhouse directly.