An MCP server for interacting with Sentry via LLMs.
This is a prototype of a remote MCP sever, acting as a middleware to the upstream Sentry API provider.
It is based on Cloudflare's work towards remote MCPs.
While this repository is primarily servicing a remote MCP use-case, we also support a stdio transport.
Note: This is currently a draft and not available via a distribution.
You will need to ensure your token is provisioned with the necessary scopes. As of writing this is:
org:read project:read project:write team:read team:write event:read
You can find the canonical reference to the needed scopes in the source code.
Launching the stdio transport will just require you to bind SENTRY_AUTH_TOKEN and run the provided script:
SENTRY_AUTH_TOKEN= npm run start:stdio
You can override the SENTRY_URL env variable to set your base Sentry url:
SENTRY_URL=https://sentry.mycompany.com
MCP includes an Inspector, to easily test the service:
pnpm inspector
Enter https://[domain].workers.dev/sse (TODO) and hit connect. Once you go through the authentication flow, you'll see the Tools working:
Open Claude Desktop and navigate to Settings, press ⌘ + , (comma) -> Developer -> Edit Config. This opens the configuration file that controls which MCP servers Claude can access.
Replace the content with the following configuration. Once you restart Claude Desktop, a browser window will open showing your OAuth login page. Complete the authentication flow to grant Claude access to your MCP server. After you grant access, the tools will become available for you to use.
{
"mcpServers": {
"math": {
"command": "npx",
"args": [
"mcp-remote",
"https://mcp-github-oauth.<your-subdomain>.workers.dev/sse"
]
}
}
}
Once the Tools (under 🔨) show up in the interface, you can ask Claude to use them. For example: "Could you use the math tool to add 23 and 19?". Claude should invoke the tool and show the result generated by the MCP server.
If you'd like to iterate and test your MCP server, you can do so in local development. This will require you to create another OAuth App in Sentry (Settings => API => Applications):
http://localhost:8788http://localhost:8788/callback.dev.vars file in your project root with:SENTRY_CLIENT_ID=your_development_sentry_client_id
SENTRY_CLIENT_SECRET=your_development_sentry_client_secret
Run the server locally to make it available at http://localhost:8788
pnpm dev
To test the local server, enter http://localhost:8788/sse into Inspector and hit connect. Once you follow the prompts, you'll be able to "List Tools".
There are two test suites included: basic unit tests, and some evaluations.
Unit tests can be run using:
pnpm test
Evals will require a .env file with some config:
OAUTH_API_TOKEN=
Once thats done you can run them using:
pnpm eval
When using Claude to connect to your remote MCP server, you may see some error messages. This is because Claude Desktop doesn't yet support remote MCP servers, so it sometimes gets confused. To verify whether the MCP server is connected, hover over the 🔨 icon in the bottom right corner of Claude's interface. You should see your tools available there.
To connect Cursor with your MCP server, choose Type: "Command" and in the Command field, combine the command and args fields into one (e.g. npx mcp-remote https://<your-worker-name>.<your-subdomain>.workers.dev/sse).
Note that while Cursor supports HTTP+SSE servers, it doesn't support authentication, so you still need to use mcp-remote (and to use a STDIO server, not an HTTP one).
You can connect your MCP server to other MCP clients like Windsurf by opening the client's configuration file, adding the same JSON that was used for the Claude setup, and restarting the MCP client.