How to connect Snowflake to Claude

Connect Claude Web, Desktop and Cowork to Snowflake MCP. Run a sql query to list today's new users, cancel a long-running data import statement, and more using natural language, with authentication handled for you.

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Snowflake is a cloud data warehouse built for elastic scaling, secure data sharing, and fast SQL analytics across major clouds.

14 Tools

Introduction

Claude is Anthropic's AI assistant, available on the web, in the desktop app, and on mobile. Cowork is its agent for knowledge work, and it runs on all of those surfaces too. Connected to your apps, Claude can work with your files and services to accomplish complex tasks on your behalf.

This guide walks you through the easiest and most secure way to connect your Snowflake account to Claude via Composio Connect, enabling it to run a SQL query to list today's new users, cancel a long-running data import statement, show all unresolved incidents in Snowflake, and more such actions on your behalf without compromising your account security.

Setup is the same on Claude Web, Desktop, and Cowork, and you only need to do it once. The connector is tied to your account, so it's available in all three.

Also integrate Snowflake with

Connecting Snowflake to Claude Web, Desktop, and Cowork

Two ways to add the Composio connector. Pick whichever you prefer.

1. Add with one click

Click the button. Claude opens with the Composio connector filled in. Click Add, then go to step 2.

Add to Claude

Add manually

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

Click Add custom connector and paste in the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
Add custom connector dialog with Composio MCP server URL

2. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Web, Desktop, and Cowork

3. Connect your Snowflake account

Back in Claude, ask it to connect to Snowflake or give it any Snowflake-related task.

For example, ask Claude to:

  • "Run a SQL query to list today's new users"
  • "Cancel a long-running data import statement"
  • "Show all unresolved incidents in Snowflake"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Claude, and your Snowflake account is ready to use.

What is the Snowflake Claude Connector, and what's possible with it?

The Snowflake MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Snowflake account. It provides structured and secure access to your cloud data warehouse, so your agent can run complex SQL queries, monitor system health, check scheduled maintenances, and manage incidents seamlessly—no manual intervention needed.

  • Automated SQL execution and data retrieval: Direct your agent to execute SQL statements and instantly fetch query results from your data warehouse.
  • Query management and cancellation: Have your agent monitor and cancel long-running or stuck SQL statements to keep your workflows running smoothly.
  • Maintenance and system status monitoring: Let your agent check for active, upcoming, or completed scheduled maintenances and get real-time updates on system components.
  • Incident detection and reporting: Enable your agent to retrieve unresolved incidents and receive summaries of any issues currently affecting your Snowflake environment.
  • Integration metadata access: Fetch details about catalog integrations and system status rollups so your agent can keep tabs on the overall health of your Snowflake setup.

Troubleshooting

1. Why does Claude not use the Composio connector for Snowflake?

The connector can show as connected, but Claude must use it in each Snowflake conversation.

  • Click + at the lower left of the chat, or type /.
  • Hover Connectors.
  • Turn on Composio.
  • Ask Claude to connect to Snowflake again.

2. Why does Claude show an MCP server error before Snowflake connects?

Claude can show Couldn't reach the MCP server or Authorization with the MCP server failed when you add the connector for Snowflake.

  • Check that the connector URL is https://connect.composio.dev/mcp.
  • Connectors run from Anthropic's cloud, so your device network is usually not the problem.
  • Add the connector again from Customize > Connectors, then ask Claude to connect Snowflake.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the Snowflake authorization link not work?

The Composio connector is one server. Your Snowflake account connects separately when Claude asks for it.

  • If the browser does not open, or the link expires, ask Claude to retry the Snowflake connection.
  • Composio creates a fresh Snowflake authorization link.
  • Open that link in your browser and finish the Snowflake sign-in.

4. Why do Snowflake actions fail after they worked before?

The Snowflake connection can expire or lose permission.

  • Ask Claude to inspect the Snowflake connection.
  • If the connection is unhealthy, disconnect it when Claude prompts you.
  • Reconnect the Snowflake account and retry the action.
  • If Claude shows a permission prompt, approve it before Claude changes data in Snowflake.
  • If the action still fails with a permission error, check that the connected account has that permission in Snowflake itself.

5. How do I switch to a different Snowflake account?

Claude can manage the Snowflake connection for you.

  • Ask Claude to disconnect or delete the current Snowflake account.
  • Ask Claude to connect Snowflake again.
  • Open the new Composio authorization link for Snowflake.
  • Sign in with the other Snowflake account in the browser.
  • After the account connects, ask Claude to retry the Snowflake task.

6. Why is my Snowflake connection missing in Claude Desktop or on a Team plan?

The connector belongs to your Claude account, so your Snowflake connection works in Claude Web, Desktop, and Cowork.

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click and click Clear cache.
  • If Snowflake tools still do not appear, click , disconnect, remove the connector, and add it again.
  • On Team or Enterprise, an Owner or Primary Owner must enable the connector before you can connect Snowflake.
TOOLS

Supported Tools

Every Snowflake action and event your agent gets out of the box.

Cancel Statement Execution

Cancels the execution of a running SQL statement.

Check Statement Status

Retrieves the status and results of a previously submitted SQL statement using its statement handle.

Execute SQL

Execute SQL statements in Snowflake and retrieve results.

Fetch Catalog Integration

Retrieves detailed configuration and metadata for a specific catalog integration.

Get Active Scheduled Maintenances

Retrieves a list of any active scheduled maintenances currently in the In Progress or Verifying state.

Get All Scheduled Maintenances

Retrieves a list of the 50 most recent scheduled maintenances, including those in the Completed state.

Get Component Status

Retrieves the status of individual components, each listed with its current status.

Get Status Rollup

Retrieves the status rollup for the entire page, including indicators and human-readable descriptions of the blended component status.

Get Status Summary

Retrieves the current status summary from Snowflake's public status page (status.

Get Unresolved Incidents

Retrieves a list of any unresolved incidents from the Snowflake status page.

Get Upcoming Scheduled Maintenances

Retrieves upcoming scheduled maintenances from Snowflake's public status page.

Show Databases

Lists all databases for which you have access privileges.

Show Schemas

Lists all schemas for which you have access privileges.

Show Tables

Lists all tables for which you have access privileges.

FAQ

Frequently asked questions

With a standalone Snowflake MCP server, the agents and LLMs can only access a fixed set of Snowflake tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Snowflake and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. Claude Cowork 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 Snowflake tools.

Yes, absolutely. You can configure which Snowflake 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.

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 Snowflake data and credentials are handled as safely as possible.

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