serversSoftwareApplication

ClickHouse MCP Server

Deploy and configure the ClickHouse MCP server with authentication, use cases, security notes, and India-ready hosting guidance.

Quick Answer / TL;DR

The ClickHouse MCP server exposes ClickHouse capabilities to AI clients through scoped tools, resources, and JSON-RPC calls, using ClickHouse HTTP Auth for authentication.

Key Takeaways

Authentication: ClickHouse HTTP Auth.
Category: Databases.
Best first use case: Aggregate user session data.
Use environment variables and least-privilege scopes for production.

Integration overview

Query ClickHouse analytical databases. Run massive aggregates on millions of events instantly under LLM guidance.

Use this connector when an AI assistant such as Claude, Cursor, or a custom agent needs a governed path into ClickHouse. Keep the server focused on the approved workflows instead of exposing a whole account or admin surface.

For Indian teams, deploy the connector near the users and the data source, then add request IDs, redaction, and audit logs before connecting production data.

Field	Value
Connector	ClickHouse MCP Server
Category	Databases
Authentication	ClickHouse HTTP Auth
Production route	/servers/clickhouse-mcp-server/

Features and use cases

ClickHouse is most useful when the agent has a narrow job to complete and the server can validate every argument before execution.

Start with read-only or low-risk tools. Add write operations only after approval prompts, scoped credentials, and logging are working.

Capability	Recommended guardrail
Analytical queries	Allow with scoped read access
Table sizing reviews	Allow with scoped read access
Partitions diagnostic	Allow with scoped read access
Compression metrics	Allow with scoped read access

Local and hosted configuration

Configure ClickHouse with credentials stored in environment variables. Do not hardcode tokens in prompts, repositories, screenshots, or browser-visible code.

The local configuration pattern works for a single developer. Hosted deployments should add TLS, bearer-token authentication, health checks, and monitoring.

{
  "mcpServers": {
    "clickhouse": {
      "command": "npx",
      "args": ["-y", "@modelcontextprotocol/server-clickhouse"],
      "env": {
        "CLICKHOUSE_TOKEN": "${CLICKHOUSE_TOKEN}"
      }
    }
  }
}

Security and permissions

Protect ClickHouse HTTP Auth credentials with least privilege, rotation, and separate environments for development, staging, and production.

Review every tool output for sensitive data before letting it enter model context. For regulated Indian workflows, add DPDP-aware redaction and retention controls.

{
  "server": "clickhouse-mcp-server",
  "auth": "ClickHouse HTTP Auth",
  "policy": {
    "leastPrivilege": true,
    "redactSecrets": true,
    "requireApprovalForWrites": true,
    "auditToolCalls": true
  }
}