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Databases & warehouses

ClickHouse MCP server: ask questions, get governed answers

ClickHouse is a column-oriented database built for fast analytical queries over very large volumes of event, log and time-series data.

Try it on your own data in a pilot.

ClickHouse dashboard questions you can ask

Typical questions from data and product analytics. Each answer shows the definition, source and query behind it.

  • How many events did we record per hour over the last 48 hours?
  • Which 10 pages had the most views this week?
  • Compare daily active users this month with last month
  • List the top error types by count in the last 24 hours
  • Break down sessions by country and device type for last week

How Nexatron connects to ClickHouse

Whose permissions
Your administrator approves the access the ClickHouse connection uses. Where ClickHouse supports per-user sign-in, answers run under each person's own access, and Nexatron roles decide who in your company can ask.
Read and write
Questions are read-only: asking never changes ClickHouse data.
Setup
Our team sets up the ClickHouse connection with your administrator during the pilot. No data migration and no pipeline to build: data is queried where it lives.

ClickHouse MCP connector for Claude, ChatGPT and Copilot

Nexatron's hosted MCP server is a governed ClickHouse MCP connector: Claude, ChatGPT and Microsoft Copilot ask questions of your ClickHouse data through it. Each person signs in as themselves, so the assistant sees only what they may see.

Connect ClickHouse to Claude, ChatGPT or Copilot

  1. Connect ClickHouse to your Nexatron workspace.
  2. In Claude, add Nexatron from Claude's connector directory. In ChatGPT or Copilot, add a custom MCP connector with the server URL https://api.nexatron.io/api/v1/mcp.
  3. Sign in with your own Nexatron identity (OAuth 2.1), then ask your ClickHouse questions.
How the Nexatron MCP server works

ClickHouse connector FAQ

Can I ask ClickHouse questions without writing queries?
Yes. Ask in Teams, Slack, the Nexatron web app, or an AI assistant connected through Nexatron's MCP server.
Does Nexatron respect ClickHouse permissions?
Yes. Where ClickHouse supports per-user sign-in, answers run under each person's own access.
Can Nexatron change data in ClickHouse?
No. Asking a question never changes ClickHouse data.
What do I need to connect ClickHouse?
An administrator who can approve the connection. Our team sets it up with them during the pilot.
Is there a ClickHouse MCP server for Claude, ChatGPT or Copilot?
Yes: Nexatron's hosted MCP server, once ClickHouse is connected to your workspace. It is Nexatron's server, not one published by ClickHouse, and the assistant gets the same governed answer as the Nexatron app.

Try Nexatron on your own ClickHouse data

A pilot starts with three questions your team already asks and the report you trust for each, so you can check the answers yourself.

ClickHouse is a trademark of its owner. Nexatron is not affiliated with or endorsed by it; the name and mark identify the system Nexatron connects to.