How do I connect Polygon.io to Claude?

You subscribe to the MCP on Vinkius and enter your Polygon.io API key. Once connected, you can use Claude to query market data immediately.

What kind of data can my AI agent access?

The agent can access real-time and historical trades, NBBO quotes, OHLCV aggregates, company metadata, and dividend histories.

Do I need to manage my own API keys?

You provide your Polygon.io API key to Vinkius, and Vinkius manages the connection and hosting for you.

Can I get minute-by-minute stock data?

Yes, you can use the get_aggregates capability to fetch OHLCV bars over custom timeframes including minutes and hours.

Is this compatible with Cursor or Windsurf?

Yes, this MCP is designed to work with any MCP-compatible client, including Cursor and Windsurf.

Can I get historical price data for a specific stock over a date range?

Yes. Use the get_aggregates capability by providing the ticker, multiplier, timespan (e.g., 'day'), and the 'from' and 'to' dates. The agent will return the OHLCV bars for that period.

How do I find the description and industry of a specific company?

Simply use the get_company capability with the stock ticker (e.g., 'AAPL'). It will retrieve the official company metadata, including its business description and industry classification.

Is it possible to see the most recent trades for a ticker?

Yes! The list_trades capability allows you to fetch tick-by-tick trade data for a specific ticker, showing execution prices and sizes as they happen in the market.

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Connect Polygon.io to ChatGPT, Claude and Gemini

Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Pull institutional-grade market data directly into your AI chat.

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

Waiting for input…

Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

Your AI does the work. We keep it safe and sound.

No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.

Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

V8 Isolate01

Each Connector runs inside its own sealed environment.

Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.

Kill Switch02

One switch stops every agent. Instantly.

One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.

FinOps per User03

Spending limits that pause instead of surprise.

Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.

Three controls, built into the layer your AI connects through.

Curated set · 6 capabilities

We ship only the actions that matter.

Capability set01 / 02

01-03

3 capabilities in this set.

Part of 6 available through Polygon.io.

01
List quotes
Get tick-by-tick NBBO quotes. Your agent uses this to see real-time bid and ask pricing.
02
Get aggregates
Fetch OHLCV aggregate bars for a stock. Use this to pull price and volume data over specific time intervals.
03
Get company
Retrieve detailed company metadata. This capability provides industry info and descriptions for specific tickers.

Capability set02 / 02

04-06

3 capabilities in this set.

Part of 6 available through Polygon.io.

04
List dividends
Access historical dividend records. It returns cash distribution amounts and ex-dividend dates.
05
List tickers
Query the full list of supported tickers. Use this to find valid financial instruments on the platform.
06
List trades
Get tick-by-tick trade data. This allows your agent to inspect exact execution prices and volumes.

Real work

What teams actually run

Backtesting Validation

Use the agent to pull historical OHLCV bars to check how a specific price movement would have affected a position.

Dividend Yield Analysis

Ask your agent to list historical dividends for a stock to model long-term income streams.

Ticker Auditing

Quickly verify industry classifications and company details using the metadata capabilities.

Real-time Monitoring

Have your agent check tick-by-tick trades to see how a stock is executing in the moment.

Automate a task

Put Polygon.io to work on one thing.

Step-by-step automations your AI runs through this Connector: the workflow, the prompts to start with, and the exact capabilities behind each move.

One connector, every AI

Polygon.io works with the most popular AI clients.

These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.

Building your own app? The connector is yours to use.

You don't need a client to put Polygon.io to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.

Observed, not estimated

1021ms average. Fast in production.

Polygon.io is checked daily against the live service.

Daily averagePeak 1140ms

Oct 3Today

Fastest day: 725ms
Slowest day: 1140ms
14-day trend: Improving-14%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 6 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of Polygon.io, so you can see the experience inside your AI.

It does not authenticate your account with Polygon.io. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

Polygon.io Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_8YdMcCERRHhCdZDn0EolzUq7yE1Irfyp84qVvYs9/mcp

Claude Desktop

Follow the steps below to connect in seconds.

1In Claude Desktop, open Settings → Connectors.
2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
3Click Add and start a new chat — Polygon.io capabilities are ready to use.

Configuration · claude_desktop_config.jsonCopy

{
  "mcpServers": {
    "polygonio-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_8YdMcCERRHhCdZDn0EolzUq7yE1Irfyp84qVvYs9/mcp"
    }
  }
}

Claude
ChatGPT
Cursor
VS Code
Windsurf
Claude Code
JetBrains
Cline

Step-by-step instructions for each client are in the guide. How to connect

Guided setup for Claude? Set up Polygon.io in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work Polygon.io owners hand off.

This MCP is built for professionals who need to move from raw data to insight without manual data entry.

01
Financial Analysts
They hand off the task of pulling historical aggregates and dividend data for modeling to their agent.
02
Traders & Quants
They use the agent to inspect tick-by-tick trades and NBBO quotes to validate strategies.
03
Fintech Developers
They use the agent to verify ticker metadata and market connectivity during application builds.

FAQ

Questions Polygon.io owners ask.

01
How do I connect Polygon.io to Claude?
You subscribe to the MCP on Vinkius and enter your Polygon.io API key. Once connected, you can use Claude to query market data immediately.
02
What kind of data can my AI agent access?
The agent can access real-time and historical trades, NBBO quotes, OHLCV aggregates, company metadata, and dividend histories.
03
Do I need to manage my own API keys?
You provide your Polygon.io API key to Vinkius, and Vinkius manages the connection and hosting for you.
04
Can I get minute-by-minute stock data?
Yes, you can use the get_aggregates capability to fetch OHLCV bars over custom timeframes including minutes and hours.
05
Is this compatible with Cursor or Windsurf?
Yes, this MCP is designed to work with any MCP-compatible client, including Cursor and Windsurf.
06
Can I get historical price data for a specific stock over a date range?
Yes. Use the get_aggregates capability by providing the ticker, multiplier, timespan (e.g., 'day'), and the 'from' and 'to' dates. The agent will return the OHLCV bars for that period.
07
How do I find the description and industry of a specific company?
Simply use the get_company capability with the stock ticker (e.g., 'AAPL'). It will retrieve the official company metadata, including its business description and industry classification.
08
Is it possible to see the most recent trades for a ticker?
Yes! The list_trades capability allows you to fetch tick-by-tick trade data for a specific ticker, showing execution prices and sizes as they happen in the market.

Explore

More in Money Moves

Connect Polygon.io to Claude, Cursor, ChatGPT & more

Your AI does the work. We keep it safe and sound.

Each Connector runs inside its own sealed environment.

One switch stops every agent. Instantly.

Spending limits that pause instead of surprise.

We ship only the actions that matter.

01-03

List quotes

Get aggregates

Get company

04-06

List dividends

List tickers

List trades

What teams actually run

Backtesting Validation

Dividend Yield Analysis

Ticker Auditing

Real-time Monitoring

Building your own app? The connector is yours to use.

Polygon.io Connector

Claude Desktop

Financial Analysts

Traders & Quants

Fintech Developers

How do I connect Polygon.io to Claude?

What kind of data can my AI agent access?

Do I need to manage my own API keys?

Can I get minute-by-minute stock data?

Is this compatible with Cursor or Windsurf?

Can I get historical price data for a specific stock over a date range?

How do I find the description and industry of a specific company?

Is it possible to see the most recent trades for a ticker?

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