Add the ClickHouse MCP server to Claude Code

Config last verified Jun 1, 2026

The exact config to run ClickHouse in Claude Code — paste it in, restart, and the tools load.

Prerequisites

Claude Code installed.
CLICKHOUSE_HOST — Hostname of your ClickHouse server.
CLICKHOUSE_USER — ClickHouse username used to authenticate.
CLICKHOUSE_PASSWORD — Password for the ClickHouse user.

Setup

1. Open `~/.claude.json`

2. Add this configuration

Add to ~/.claude.json

~/.claude.json

json

{
  "mcpServers": {
    "clickhouse": {
      "command": "uvx",
      "args": [
        "--with",
        "mcp-clickhouse",
        "--python",
        "3.10",
        "mcp-clickhouse"
      ],
      "env": {
        "CLICKHOUSE_HOST": "<CLICKHOUSE_HOST>",
        "CLICKHOUSE_USER": "<CLICKHOUSE_USER>",
        "CLICKHOUSE_PASSWORD": "<CLICKHOUSE_PASSWORD>"
      }
    }
  }
}

Or via CLI

bash

claude mcp add clickhouse -- uvx --with mcp-clickhouse --python 3.10 mcp-clickhouse

3. Restart Claude Code and confirm the ClickHouse tools load.

Gotchas

Claude Code stores MCP servers under an "mcpServers" object in ~/.claude.json. It also reads a project-scoped .mcp.json and supports adding servers from the command line with "claude mcp add". Each entry must declare either a "type" or a "command"; Claude Code refuses an entry that has neither. Remote servers connect natively over Streamable HTTP with OAuth.

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