Sentry (Remote) MCP server

This MCP server acts as a middleware to the upstream Sentry API provider, allowing easier interaction with Sentry services. Based on Cloudflare's work towards remote Model Context Protocol (MCP) servers, it provides both remote and stdio transport options for connecting to Sentry.

Installation Options

Remote MCP Server

The easiest way to use the service is by accessing the deployed production instance:

https://mcp.sentry.dev

Stdio Transport for Self-Hosted Sentry

For self-hosted Sentry installations, the stdio transport option is more appropriate:

1. Create a User Auth Token in Sentry with the following scopes:

   • org:read
   • project:read
   • project:write
   • team:read
   • team:write
   • event:write

2. Launch the transport using npx:

npx @sentry/mcp-server@latest --access-token=sentry-user-token --host=sentry.example.com

You can also use environment variables instead:

SENTRY_ACCESS_TOKEN=your-token-here
SENTRY_HOST=sentry.example.com

Using the MCP Inspector

The MCP Inspector tool allows you to test and interact with the service:

pnpm inspector

Once launched:

1. Enter the MCP server URL (http://localhost:5173)
2. Click connect
3. Complete the authentication flow when prompted

Note: If you encounter OAuth flow issues when accessing the inspector via 127.0.0.1, try using localhost instead (http://localhost:6274).

Running Locally

To run the server in local development mode:

1. Create an OAuth App in Sentry (Settings → API → Applications) with:

   • Homepage URL: http://localhost:5173
   • Authorized Redirect URIs: http://localhost:5173/callback
   • Note your Client ID and generate a Client secret

2. Create a .dev.vars file in the packages/mcp-cloudflare/ directory:

# packages/mcp-cloudflare/.dev.vars
SENTRY_CLIENT_ID=your_development_sentry_client_id
SENTRY_CLIENT_SECRET=your_development_sentry_client_secret
COOKIE_SECRET=my-super-secret-cookie

3. Start the server:

pnpm dev

4. To test, enter http://localhost:5173/mcp into the Inspector and connect

How to install this MCP server

For Claude Code

To add this MCP server to Claude Code, run this command in your terminal:

claude mcp add-json "sentry-mcp" '{"command":"npx","args":["@sentry/mcp-server@latest"]}'

See the official Claude Code MCP documentation for more details.

For Cursor

There are two ways to add an MCP server to Cursor. The most common way is to add the server globally in the ~/.cursor/mcp.json file so that it is available in all of your projects.

If you only need the server in a single project, you can add it to the project instead by creating or adding it to the .cursor/mcp.json file.

Adding an MCP server to Cursor globally

To add a global MCP server go to Cursor Settings > Tools & Integrations and click "New MCP Server".

When you click that button the ~/.cursor/mcp.json file will be opened and you can add your server like this:

{
    "mcpServers": {
        "sentry-mcp": {
            "command": "npx",
            "args": [
                "@sentry/mcp-server@latest"
            ]
        }
    }
}

Adding an MCP server to a project

To add an MCP server to a project you can create a new .cursor/mcp.json file or add it to the existing one. This will look exactly the same as the global MCP server example above.

How to use the MCP server

Once the server is installed, you might need to head back to Settings > MCP and click the refresh button.

The Cursor agent will then be able to see the available tools the added MCP server has available and will call them when it needs to.

You can also explicitly ask the agent to use the tool by mentioning the tool name and describing what the function does.

For Claude Desktop

To add this MCP server to Claude Desktop:

1. Find your configuration file:

• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%\Claude\claude_desktop_config.json
• Linux: ~/.config/Claude/claude_desktop_config.json

2. Add this to your configuration file:

{
    "mcpServers": {
        "sentry-mcp": {
            "command": "npx",
            "args": [
                "@sentry/mcp-server@latest"
            ]
        }
    }
}

3. Restart Claude Desktop for the changes to take effect