How to connect Polygon io to Claude Cowork

Trusted by teams atAWSGleanZoomAirtable
GET STARTED FOR FREEGET A DEMO

30 min · no commitment · see it on your stack

Polygon io logo
Claude Cowork logo
divider

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 Polygon io account to Cowork via Composio Connect, enabling it to get daily summary for AAPL stock, retrieve latest news on TSLA ticker, check if NYSE market is open now, and more such actions on your behalf without compromising your account security.

Also integrate Polygon io with

Connecting Polygon io 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 Polygon io account

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

For example, ask Cowork to:

  • "Get daily summary for AAPL stock"
  • "Retrieve latest news on TSLA ticker"
  • "Check if NYSE market is open now"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Cowork, and your Polygon io 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 Polygon io through MCP without you sharing account credentials directly with the agent.

What is the Polygon io MCP server, and what's possible with it?

The Polygon io MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Polygon io account. It provides structured and secure access to real-time and historical financial market data, so your agent can pull ticker lists, fetch stock summaries, analyze technical indicators, and surface news updates on your behalf.

  • Comprehensive ticker discovery and lookup: Instantly retrieve detailed lists of supported stock, forex, crypto, and option tickers to power your trading dashboards or research tools.
  • Daily summary and technical analysis: Ask your agent to fetch daily price summaries, calculate exponential moving averages, MACD, or RSI for any supported ticker and timeframe.
  • Financial events and dividend insights: Pull up historical dividend distributions, keep tabs on scheduled market holidays, and plan trading activities around real exchange calendars.
  • Up-to-date market status monitoring: Have your agent check real-time market open/close statuses and trading conditions across multiple exchanges and asset classes.
  • Automated news aggregation for securities: Let your agent gather the latest news articles, sentiment analysis, and headlines for specific tickers, helping you stay informed with minimal effort.

Supported Tools & Triggers

Tools
Get All TickersTool to retrieve a comprehensive list of supported ticker symbols across all asset classes.
Get Condition CodesTool to retrieve a unified list of trade and quote condition codes and their definitions.
Get Daily Ticker SummaryTool to retrieve daily aggregate summary for a specific stock ticker.
Get DividendsTool to retrieve a historical record of cash dividend distributions for a given ticker.
Get Exponential Moving AverageTool to retrieve the exponential moving average for a stock ticker.
Get MACDTool to retrieve the moving average convergence/divergence (macd) for a stock ticker.
Get Market HolidaysTool to retrieve upcoming market holidays and their corresponding open/close times.
Get Market StatusTool to retrieve the current trading status across major exchanges and currency markets.
Get NewsTool to retrieve the most recent news articles for a specified ticker.
Get RSITool to retrieve the relative strength index (rsi) for a stock ticker.
Get Simple Moving AverageTool to retrieve the simple moving average (sma) for a forex ticker.
Get SplitsTool to retrieve historical stock split events for a given ticker.
Get Ticker OverviewTool to retrieve comprehensive details for a single ticker, including identifiers, industry, and branding assets.
Get Ticker TypesTool to retrieve a list of all ticker types supported by polygon.

How to build Polygon io MCP Agent with another framework

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Polygon io MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Polygon io MCP with Claude Agent SDK

Claude Code logo

Claude Code

Use Polygon io MCP with Claude Code

Codex logo

Codex

Use Polygon io MCP with Codex

OpenClaw logo

OpenClaw

Use Polygon io MCP with OpenClaw

Hermes logo

Hermes

Use Polygon io MCP with Hermes

CLI logo

CLI

Use Polygon io MCP with CLI

Google ADK logo

Google ADK

Use Polygon io MCP with Google ADK

LangChain logo

LangChain

Use Polygon io MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Polygon io MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Polygon io MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Polygon io MCP with LlamaIndex

CrewAI logo

CrewAI

Use Polygon io MCP with CrewAI

FAQ

What are the differences in Tool Router MCP and Polygon io MCP?

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

Can I use Tool Router MCP with Claude Cowork?

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 Polygon io tools.

Can I manage the permissions and scopes for Polygon io while using Tool Router?

Yes, absolutely. You can configure which Polygon io 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.

How safe is my data with Composio Tool Router?

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 Polygon io data and credentials are handled as safely as possible.

Used by agents from

Context
Letta
glean
HubSpot
Agent.ai
Altera
DataStax
Entelligence
Rolai
Context
Letta
glean
HubSpot
Agent.ai
Altera
DataStax
Entelligence
Rolai
Context
Letta
glean
HubSpot
Agent.ai
Altera
DataStax
Entelligence
Rolai

Never worry about agent reliability

We handle tool reliability, observability, and security so you never have to second-guess an agent action.

Get started for freeGet a demo↗