How to connect Polar Signals MCP to Claude Cowork

Connect Claude Cowork to Polar Signals MCP. Summarize top cpu hotspots last week, list regressions across releases for auth-service, and more using natural language, with authentication handled for you.

Polar Signals MCP logoPolar Signals MCP
Api Key

Polar Signals MCP is a continuous profiling and performance monitoring service for engineering teams. Use it to find regressions and surface runtime optimization opportunities.

8 Tools

Introduction

Cowork is Anthropic's AI agent for knowledge work. Think of it as Claude Code for everything else. It works autonomously with your computer, local files, and applications to accomplish complex tasks.

This guide walks you through the easiest and most secure way to connect your Polar Signals account to Cowork via Composio Connect, enabling it to summarize top CPU hotspots last week, list regressions across releases for auth-service, create optimization checklist for auth-service hotspots, and more such actions on your behalf without compromising your account security.

Also integrate Polar Signals MCP with

Connecting Polar Signals to Claude Cowork

1. Open Customize

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

2. Add the Composio MCP server

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

3. 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 Cowork

4. Connect your Polar Signals account

Back in Cowork, ask the agent to connect to Polar Signals or give it any Polar Signals-related task.

For example, ask Cowork to:

  • "Summarize top CPU hotspots last week"
  • "List regressions across releases for auth-service"
  • "Create optimization checklist for auth-service hotspots"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Cowork, and your Polar Signals account is ready to use.

What is Claude Cowork?

Claude Cowork is Anthropic's agent for general knowledge work. It can use your computer, files, and connected applications to complete longer-running tasks across your work tools.

With Composio Connect, Cowork can securely access apps like Polar Signals through MCP without you sharing account credentials directly with the agent.

What is the Polar Signals MCP server, and what's possible with it?

The Polar Signals MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Polar Signals account. It provides structured and secure access so your agent can perform Polar Signals operations on your behalf.

TOOLS

Supported Tools

Every Polar Signals MCP action and event your agent gets out of the box.

List projects

List all projects accessible to the current user.

Query profile flamegraph

Return a flame graph as a breadth-first call tree.

Query profile labels

Get available label names for a specific profile type.

Query profile label values

List the values a profiling label takes (e.

Query profile sandwich

Show the calling context around a specific function: which functions call it (callers) and which functions it calls (callees).

Query profile source

Retrieve per-line profiling data for a specific source file.

Query profile table

Query profiling data as a flat table of functions sorted by cumulative time.

Query profile types

ProfileTypes returns the list of available profile types.

FRAMEWORKS

How to build Polar Signals MCP Agent with another framework

FAQ

Frequently asked questions

With a standalone Polar Signals MCP server, the agents and LLMs can only access a fixed set of Polar Signals tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Polar Signals 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 Polar Signals tools.

Yes, absolutely. You can configure which Polar Signals 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 Polar Signals data and credentials are handled as safely as possible.

Start with Polar Signals MCP.It takes 30 seconds.

Managed auth, hosted MCP servers, and every Polar Signals MCP tool your agent needs.Free to start.

Start building