How to Connect ClickHouse to Windsurf
Query your ClickHouse data directly from Windsurf using Sequel’s MCP server. Ask questions in plain English, with no SQL, no dashboards, and no context switching.
Short answer
Connect ClickHouse to Sequel, then add Sequel's MCP server to Windsurf using the config on this page. Windsurf can then query your live ClickHouse data in plain English, with no connector code and no CSV exports. Both steps take a few minutes.
Everything you can ask Windsurf about your ClickHouse data.
Ask in plain English — Sequel translates it into a ClickHouse query, runs it, and Windsurf hands back the answer. No SQL, no dashboards, no CSV exports.
Connect to your agent- How many events did we receive per hour yesterday?
- What's the funnel conversion rate from signup to first purchase?
- Show me the top 10 users by event count this week
- Which event types have increased most in the last 7 days?
- What's the day-1 retention rate for users who signed up last month?
How it works
Three steps to get started
Connect ClickHouse to Sequel
In your Sequel dashboard, go to Connections and add ClickHouse. Sequel handles authentication and schema discovery automatically.
Add Sequel to the agent
Copy the Sequel MCP configuration into Windsurf's settings file (shown below). Swap in your API key from Settings → API Keys.
Ask Windsurf about your data
Restart Windsurf and start asking questions. "How many events did we receive per hour yesterday?" — and get a real answer backed by live ClickHouse data.
Configuration
Add Sequel to Windsurf
Place this in ~/.codeium/windsurf/mcp_config.json and replace sql_your_api_key with a key from Settings → API Keys.
~/.codeium/windsurf/mcp_config.json
{
"mcpServers": {
"sequel": {
"serverUrl": "https://api.sequel.sh/mcp",
"headers": {
"Authorization": "Bearer sql_your_api_key"
}
}
}
}Install
Install ClickHouse MCP in Windsurf
Pick your app and Sequel installs itself: a one-click link where the client supports it, that client’s own few steps where it doesn’t. Every route signs in with your Sequel account over OAuth, so there is no API key to copy and nothing to keep in sync.
Claude, ChatGPT, Cursor, VS Code, Claude Code, Codex, Grok, Muse, dots and any other MCP app
Already have an MCP client?
https://api.sequel.sh/mcp
Add it as a remote (streamable HTTP) server and sign in when prompted. Skills come with it; nothing else to install. Manual setup per client
Choose your app
Claude
One click, opens in the app
Cursor
One click, opens in the app
VS Code
One click, opens in the app
ChatGPT
Turn on developer mode, then add Sequel. About two minutes.
Claude Code
Run one command, then sign in with /mcp.
Codex
Run one command, then sign in.
Gemini CLI
Run one command, then sign in with /mcp auth.
Grok
Add Sequel as a connector and sign in.
Grok Bot
Paste this to the bot. It registers Sequel and asks you to sign in.
Muse
Muse writes its own connector. One message is the whole setup.
dots
Add Sequel in ChatGPT; your dot picks it up with no extra step.
OpenCode
Add Sequel as a remote server from the OpenCode CLI.
Other MCP app
Any client that speaks remote MCP can connect with this URL.
Other AI agents
Connect ClickHouse MCP to any agent
Claude
Use Claude to query your databases, explore schemas, and build analyses — all from one conversation.
Cursor
Query your databases and explore schemas without leaving your code editor.
ChatGPT
Connect ChatGPT to your databases and get data-backed answers in every conversation.
VS Code
Get database access inside VS Code Copilot without leaving your editor.
Windsurf
Give Windsurf's Cascade AI access to your databases — query data without leaving your editor.
Zed
Connect Zed's AI assistant to your databases for real-time data access while you code.
Gemini
Connect Google Gemini to your databases for grounded, data-backed answers.
Claude Code
Query your databases directly from the Claude Code CLI — without leaving your terminal.
Codex
Give OpenAI Codex CLI real-time database access for data-grounded coding sessions.
OpenClaw
Turn your self-hosted OpenClaw agent into a data analyst that queries every source you've connected.
Hermes
Give Nous Research's Hermes agent read access to every database and marketing tool you've connected.
Grok Bot
Tell your Grok bot to add Sequel and it can query every database and marketing tool you've connected.
Muse
Give Meta's Muse one message and it builds its own connector to every source you've put in Sequel.
dots
Add Sequel once in ChatGPT and your dot can answer data questions on its own, day and night.
Other data sources
Connect other sources to Windsurf
PostgreSQL
Query your PostgreSQL database in plain English. No SQL required.
MySQL
Instant insights from your MySQL database. Ask in plain English.
BigQuery
Query petabytes of BigQuery data in plain English.
Google Sheets
Query, write, and manage Google Sheets with AI.
Google Analytics 4
Ask your GA4 data anything. No SQL, no dashboards.
Google Search Console
Unlock your SEO data with natural language. No exports, no pivot tables.
MCP Server
Connect any MCP-compatible server and query it with AI in seconds.
Stripe
Ask your Stripe data anything. MRR, churn, refunds — answered in plain English.
Polar
Ask your Polar revenue, subscriptions, and usage data anything — in plain English.
Dodo Payments
Ask questions about payments, subscriptions, refunds and payouts in plain English.
PostHog
Ask your PostHog product data anything — with HogQL under the hood.
Mixpanel
Conversational analytics on your Mixpanel events, funnels, and retention.
Amplitude
Query your Amplitude taxonomy, funnels, and dashboards in plain English.
HubSpot
Your AI analyst for HubSpot contacts, deals, tickets, and pipelines.
Ahrefs
Ask your Ahrefs SEO data anything: backlinks, keywords, and traffic.
Apollo.io
Ask your Apollo.io prospects, contacts, and accounts anything, in plain English.
Cloudflare D1
Ask your Cloudflare D1 database questions in plain English.
Instagram organic analytics — post engagement, reach, and audience insights in plain English.
Frequently asked questions
How do I connect ClickHouse to Windsurf?
You need two things: (1) connect ClickHouse to Sequel in your Sequel dashboard under Connections, and (2) add the Sequel MCP config to Windsurf using the setup shown above. Once both are done, Windsurf can query your ClickHouse data directly.
What ClickHouse data can Windsurf access?
Windsurf can access any data available through your ClickHouse connection in Sequel. Use Sequel's search tool to discover available metrics and dimensions, then execute queries to pull the data you need.
Is my ClickHouse data sent to Windsurf's servers?
Query results are returned to Windsurf as context within your conversation. Only the data you explicitly ask about is retrieved. Sequel never stores your query results permanently — they exist only for the duration of the tool call.
Do I need a Sequel account?
Yes. You need a Sequel account to connect ClickHouse and generate an API key. Sign up free at sequel.sh — no credit card required. Then create a connection to ClickHouse and generate an API key from Settings → API Keys.
Can I connect multiple ClickHouse accounts?
Yes. Sequel supports multiple connections of the same type. If you have multiple ClickHouse accounts or properties, add each as a separate connection in Sequel. Windsurf will be able to query all of them.
Connect ClickHouse to Windsurf today
Sign up free, connect your data sources, and start querying in minutes.