# How to integrate ClickHouse MCP with Codex ```json { "title": "How to integrate ClickHouse MCP with Codex", "toolkit": "ClickHouse", "toolkit_slug": "clickhouse", "framework": "Codex", "framework_slug": "codex", "url": "https://composio.dev/toolkits/clickhouse/framework/codex", "markdown_url": "https://composio.dev/toolkits/clickhouse/framework/codex.md", "updated_at": "2026-05-12T10:06:23.989Z" } ``` ## Introduction Codex is one of the most popular coding harnesses out there. And MCP makes the experience even better. With ClickHouse MCP integration, you can draft, triage, summarise emails, and much more, all without leaving the terminal or the app, whichever you prefer. ## Also integrate ClickHouse with - [ChatGPT](https://composio.dev/toolkits/clickhouse/framework/chatgpt) - [Antigravity](https://composio.dev/toolkits/clickhouse/framework/antigravity) - [OpenAI Agents SDK](https://composio.dev/toolkits/clickhouse/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/clickhouse/framework/claude-agents-sdk) - [Claude Code](https://composio.dev/toolkits/clickhouse/framework/claude-code) - [Claude Cowork](https://composio.dev/toolkits/clickhouse/framework/claude-cowork) - [Cursor](https://composio.dev/toolkits/clickhouse/framework/cursor) - [VS Code](https://composio.dev/toolkits/clickhouse/framework/vscode) - [OpenCode](https://composio.dev/toolkits/clickhouse/framework/opencode) - [OpenClaw](https://composio.dev/toolkits/clickhouse/framework/openclaw) - [Hermes](https://composio.dev/toolkits/clickhouse/framework/hermes-agent) - [CLI](https://composio.dev/toolkits/clickhouse/framework/cli) - [Google ADK](https://composio.dev/toolkits/clickhouse/framework/google-adk) - [LangChain](https://composio.dev/toolkits/clickhouse/framework/langchain) - [Vercel AI SDK](https://composio.dev/toolkits/clickhouse/framework/ai-sdk) - [Mastra AI](https://composio.dev/toolkits/clickhouse/framework/mastra-ai) - [LlamaIndex](https://composio.dev/toolkits/clickhouse/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/clickhouse/framework/crew-ai) ## TL;DR ### Why use Composio? Apart from a managed and hosted MCP server, you will get: - CodeAct: A dedicated workbench that allows GPT to write its code to handle complex tool chaining. Reduces to-and-fro with LLMs for frequent tool calling. - Large tool responses: Handle them to minimise context rot. - Dynamic just-in-time access to 20,000 tools across 1000+ other Apps for cross-app workflows. It loads the tools you need, so GPTs aren't overwhelmed by tools you don't need. ## Connect ClickHouse to Codex ### How to install ClickHouse MCP in Codex ### Run the setup command Run this command in your terminal to add the Composio MCP server to Codex. ```bash codex mcp add composio --url https://connect.composio.dev/mcp ``` ## What is the ClickHouse MCP server, and what's possible with it? The ClickHouse MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your ClickHouse account. It provides structured and secure access so your agent can perform ClickHouse operations on your behalf. ## Supported Tools | Tool slug | Name | Description | |---|---|---| | `CLICKHOUSE_EXECUTE_QUERY` | Execute ClickHouse Query | Execute a SQL query in ClickHouse and return the results. This is the primary action for querying data from ClickHouse databases. | | `CLICKHOUSE_GET_DATABASE_SCHEMA` | Get Database Schema | Get comprehensive schema overview of an entire database including all tables and optionally their column definitions. Essential for AI agents to understand the complete database structure in a single call. | | `CLICKHOUSE_GET_PLAY_INTERFACE` | Get ClickHouse Play Interface | Get the ClickHouse Play web user interface for interactive query execution. Returns HTML page with Monaco Editor for writing queries and visualizing results. | | `CLICKHOUSE_GET_TABLE_SCHEMA` | Get Table Schema | Get detailed schema information for a specific table including column definitions, types, keys, and optionally sample data. This is essential for AI agents to understand table structure before constructing queries. | | `CLICKHOUSE_LIST_DATABASES` | List ClickHouse Databases | List all databases in the ClickHouse instance. Useful for discovering available databases before querying tables. | | `CLICKHOUSE_LIST_TABLES` | List ClickHouse Tables | List tables in ClickHouse databases. Returns information about tables including their engine, size, and row count. | ## Supported Triggers None listed. ## Creating MCP Server - Stand-alone vs Composio SDK The ClickHouse MCP server provides comprehensive access to ClickHouse operations through Composio. Once connected, you can perform all major ClickHouse actions directly from Codex using natural language commands. ## Complete Code None listed. ## Conclusion ### Conclusion You've successfully integrated ClickHouse with Codex using Composio's MCP server. Now you can interact with ClickHouse directly from your terminal, VS Code, or the Codex App using natural language commands. Key benefits of this setup: - Seamless integration across CLI, VS Code, and standalone app - Natural language commands for ClickHouse operations - Managed authentication through Composio - Access to 20,000+ tools across 1000+ apps for cross-app workflows - CodeAct workbench for complex tool chaining Next steps: - Try asking Codex to perform various ClickHouse operations - Explore cross-app workflows by connecting more toolkits - Build automation scripts that leverage Codex's AI capabilities ## How to build ClickHouse MCP Agent with another framework - [ChatGPT](https://composio.dev/toolkits/clickhouse/framework/chatgpt) - [Antigravity](https://composio.dev/toolkits/clickhouse/framework/antigravity) - [OpenAI Agents SDK](https://composio.dev/toolkits/clickhouse/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/clickhouse/framework/claude-agents-sdk) - [Claude Code](https://composio.dev/toolkits/clickhouse/framework/claude-code) - [Claude Cowork](https://composio.dev/toolkits/clickhouse/framework/claude-cowork) - [Cursor](https://composio.dev/toolkits/clickhouse/framework/cursor) - [VS Code](https://composio.dev/toolkits/clickhouse/framework/vscode) - [OpenCode](https://composio.dev/toolkits/clickhouse/framework/opencode) - [OpenClaw](https://composio.dev/toolkits/clickhouse/framework/openclaw) - [Hermes](https://composio.dev/toolkits/clickhouse/framework/hermes-agent) - [CLI](https://composio.dev/toolkits/clickhouse/framework/cli) - [Google ADK](https://composio.dev/toolkits/clickhouse/framework/google-adk) - [LangChain](https://composio.dev/toolkits/clickhouse/framework/langchain) - [Vercel AI SDK](https://composio.dev/toolkits/clickhouse/framework/ai-sdk) - [Mastra AI](https://composio.dev/toolkits/clickhouse/framework/mastra-ai) - [LlamaIndex](https://composio.dev/toolkits/clickhouse/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/clickhouse/framework/crew-ai) ## Related Toolkits - [Firecrawl](https://composio.dev/toolkits/firecrawl) - Firecrawl automates large-scale web crawling and data extraction. It helps organizations efficiently gather, index, and analyze content from online sources. - [Tavily](https://composio.dev/toolkits/tavily) - Tavily offers powerful search and data retrieval from documents, databases, and the web. It helps teams locate and filter information instantly, saving hours on research. - [Exa](https://composio.dev/toolkits/exa) - Exa is a data extraction and search platform for gathering and analyzing information from websites, APIs, or databases. It helps teams quickly surface insights and automate data-driven workflows. - [Serpapi](https://composio.dev/toolkits/serpapi) - SerpApi is a real-time API for structured search engine results. It lets you automate SERP data collection, parsing, and analysis for SEO and research. - [Peopledatalabs](https://composio.dev/toolkits/peopledatalabs) - Peopledatalabs delivers B2B data enrichment and identity resolution APIs. Supercharge your apps with accurate, up-to-date business and contact data. - [Snowflake](https://composio.dev/toolkits/snowflake) - Snowflake is a cloud data warehouse built for elastic scaling, secure data sharing, and fast SQL analytics across major clouds. - [Posthog](https://composio.dev/toolkits/posthog) - PostHog is an open-source analytics platform for tracking user interactions and product metrics. It helps teams refine features, analyze funnels, and reduce churn with actionable insights. - [Amplitude](https://composio.dev/toolkits/amplitude) - Amplitude is a digital analytics platform for product and behavioral data insights. It helps teams analyze user journeys and make data-driven decisions quickly. - [Bright Data MCP](https://composio.dev/toolkits/brightdata_mcp) - Bright Data MCP is an AI-powered web scraping and data collection platform. Instantly access public web data in real time with advanced scraping tools. - [Browseai](https://composio.dev/toolkits/browseai) - Browseai is a web automation and data extraction platform that turns any website into an API. It's perfect for monitoring websites and retrieving structured data without manual scraping. - [Coinmarketcal](https://composio.dev/toolkits/coinmarketcal) - CoinMarketCal is a community-powered crypto calendar for upcoming events, announcements, and releases. It helps traders track market-moving developments and stay ahead in the crypto space. - [Control d](https://composio.dev/toolkits/control_d) - Control d is a customizable DNS filtering and traffic redirection platform. It helps you manage internet access, enforce policies, and monitor usage across devices and networks. - [Databox](https://composio.dev/toolkits/databox) - Databox is a business analytics platform that connects your data from any tool and device. It helps you track KPIs, build dashboards, and discover actionable insights. - [Databricks](https://composio.dev/toolkits/databricks) - Databricks is a unified analytics platform for big data and AI on the lakehouse architecture. It empowers data teams to collaborate, analyze, and build scalable solutions efficiently. - [Datagma](https://composio.dev/toolkits/datagma) - Datagma delivers data intelligence and analytics for business growth and market discovery. Get actionable market insights and track competitors to inform your strategy. - [Delighted](https://composio.dev/toolkits/delighted) - Delighted is a customer feedback platform based on the Net Promoter System®. It helps you quickly gather, track, and act on customer sentiment. - [Dovetail](https://composio.dev/toolkits/dovetail) - Dovetail is a research analysis platform for transcript review and insight generation. It helps teams code interviews, analyze feedback, and create actionable research summaries. - [Dub](https://composio.dev/toolkits/dub) - Dub is a short link management platform with analytics and API access. Use it to easily create, manage, and track branded short links for your business. - [Elasticsearch](https://composio.dev/toolkits/elasticsearch) - Elasticsearch is a distributed, RESTful search and analytics engine for all types of data. It delivers fast, scalable search and powerful analytics across massive datasets. - [Fireflies](https://composio.dev/toolkits/fireflies) - Fireflies.ai is an AI-powered meeting assistant that records, transcribes, and analyzes voice conversations. It helps teams capture call notes automatically and search or summarize meetings effortlessly. ## Frequently Asked Questions ### What are the differences in Tool Router MCP and ClickHouse MCP? With a standalone ClickHouse MCP server, the agents and LLMs can only access a fixed set of ClickHouse tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from ClickHouse and many other apps based on the task at hand, all through a single MCP endpoint. ### Can I use Tool Router MCP with Codex? Yes, you can. Codex fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right ClickHouse tools. ### Can I manage the permissions and scopes for ClickHouse while using Tool Router? Yes, absolutely. You can configure which ClickHouse scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do. ### How safe is my data with Composio Tool Router? All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your ClickHouse data and credentials are handled as safely as possible. --- [See all toolkits](https://composio.dev/toolkits) · [Composio docs](https://docs.composio.dev/llms.txt)