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Connect Polygon.io (Alternative) to ChatGPT and Claude

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. Bring institutional-grade financial intelligence to your AI agent.

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

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

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

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.

A futuristic MCP client docking bay
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 · 21 capabilities

We ship only the actions that matter.

Capability set01 / 06

01-04

4 capabilities in this set.

Part of 21 available through Polygon.io.

  1. 01

    Get dividends

    This capability pulls historical dividend records for specific stocks.

  2. 02

    Get forex conversion

    Use this to get real-time currency conversion rates.

  3. 03

    Get indices snapshot

    This capability retrieves snapshot data for one or more market indices.

  4. 04

    Get market holidays

    Check this to see a list of upcoming holidays that affect market hours.

Capability set02 / 06

05-08

4 capabilities in this set.

Part of 21 available through Polygon.io.

  1. 05

    Get market snapshot

    This capability provides a full snapshot of the entire U.S. stock market.

  2. 06

    Get market status

    Use this to check if markets are currently open, closed, or in pre/post-market sessions.

  3. 07

    Get news

    This capability fetches real-time, structured news articles from Benzinga.

  4. 08

    Get quotes

    Get National Best Bid and Offer (NBBO) quotes for a specific stock.

Capability set03 / 06

09-12

4 capabilities in this set.

Part of 21 available through Polygon.io.

  1. 09

    Get sma

    This capability calculates and retrieves the Simple Moving Average (SMA) for a ticker.

  2. 10

    Get splits

    Use this to retrieve historical stock split data.

  3. 11

    Get merchant aggregates

    This capability retrieves aggregated consumer spending data from Europe.

  4. 12

    List ticker types

    Get a list of all supported ticker types.

Capability set04 / 06

13-15

3 capabilities in this set.

Part of 21 available through Polygon.io.

  1. 13

    Get treasury yields

    This capability pulls historical U.S. Treasury yield data ranging from 1-month to 30-year.

  2. 14

    Get crypto trades

    Retrieve tick-level trade data for various crypto pairs.

  3. 15

    Get custom bars

    This capability fetches aggregated historical OHLC and volume data for any stock.

Capability set05 / 06

16-18

3 capabilities in this set.

Part of 21 available through Polygon.io.

  1. 16

    Get options snapshot

    Get a snapshot of all available options contracts for a specific underlying ticker.

  2. 17

    Get trades

    This capability retrieves tick-level trade data for a specific stock.

  3. 18

    List exchanges

    Use this to see a list of known exchanges and their identifiers.

Capability set06 / 06

19-21

3 capabilities in this set.

Part of 21 available through Polygon.io.

  1. 19

    List futures contracts

    This capability lets you discover listed futures contracts and their specifications.

  2. 20

    List options contracts

    Get an index of both active and expired options contracts.

  3. 21

    List tickers

    This capability provides a comprehensive list of ticker symbols across all supported asset classes.

Real work

What teams actually run

01

Automated Research

Ask your agent to gather dividend history and treasury yields for a specific sector to build a report.

02

Real-time Monitoring

Have your agent check the market status and latest Benzinga news to stay updated on volatility.

03

Technical Strategy Testing

Request SMA calculations and historical OHLC bars to validate a trading idea.

04

Crypto Analysis

Pull tick-level trade data for crypto pairs to analyze liquidity and volume.

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.

ClaudeClaudeChatGPTChatGPTGeminiGeminiPerplexityPerplexityGrokGrokMicrosoft CopilotMicrosoft CopilotCursorCursorVS CodeVS CodeWindsurfWindsurfJetBrainsJetBrainsClineClineLangChainLangChainVercel AI SDKVercel AI SDKLovableLovableZ.aiZ.aiRaycastRaycastQwen CodeQwen CodeKimi CodeKimi CodeLe ChatLe Chat

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

1089ms average. Fast in production.

Polygon.io is checked daily against the live service.

Daily averagePeak 1530ms
Oct 3Today
Fastest day
883ms
Slowest day
1530ms
14-day trend
Improving-27%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 21 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_dqPiZ3NKcmnEpDsgvwZEXUcEm8HKkvzCFRr9cX8T/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — Polygon.io capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "polygonio-alternative-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_dqPiZ3NKcmnEpDsgvwZEXUcEm8HKkvzCFRr9cX8T/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 data inquiry to analysis without leaving their chat interface.

  • 01

    Traders

    Pull historical bars and check market status without opening a terminal.

  • 02

    Financial Analysts

    Automate the collection of dividends, splits, and treasury yields for research.

  • 03

    Developers

    Inspect ticker types and test market data queries directly in a coding environment.

FAQ

Questions Polygon.io owners ask.

  • 01

    How do I connect this MCP to my AI client?

    You subscribe to the MCP through Vinkius and then connect your client, such as Claude or Cursor, with a single click. Vinkius handles the hosting and management.

  • 02

    Do I need my own Polygon.io API key?

    Yes, you will need to enter your Polygon.io API key to authenticate your access to their data services.

  • 03

    Which assets can I query?

    This MCP supports stocks, crypto, forex, indices, and futures contracts.

  • 04

    Can I get real-time news?

    Yes, the MCP includes a capability to retrieve real-time structured news articles from Benzinga.

  • 05

    Is this compatible with Cursor or Windsurf?

    Yes, this MCP works with any MCP-compatible client, including Cursor and Windsurf.

  • 06

    How can I get historical price data for a specific stock like Apple?

    You can use the get_custom_bars capability. Provide the ticker 'AAPL', a multiplier (e.g., '1'), a timespan (e.g., 'day'), and the date range ('from' and 'to') to receive detailed OHLC and volume data.

  • 07

    Can I check if the stock market is currently open or if there's a holiday?

    Yes. Use get_market_status to see the current state of various exchanges, and get_market_holidays to see upcoming dates when the markets will be closed.

  • 08

    How do I find the ticker symbol for a company if I only know its name?

    Use the list_tickers capability and provide the company name in the search parameter. The agent will return a list of matching tickers along with their primary exchange and asset class.

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