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com.mcparmory/polygon MCP Server

com.mcparmory/polygon

Access stock, crypto, and ETF market data with real-time quotes, analyst ratings, earnings, and financial news.

What is the com.mcparmory/polygon MCP server?

The Polygon MCP server connects AI agents to Polygon.io's financial market data API. It provides tools to query stock prices, cryptocurrency data, ETF information, analyst ratings, earnings reports, and financial news, enabling agents to research and analyze markets programmatically.

This server exposes Polygon.io's comprehensive financial data platform as MCP tools. Use it to fetch real-time and historical market data, retrieve analyst sentiment and earnings calendars, search financial news, and analyze stocks, cryptocurrencies, and ETFs—all integrated directly into your AI agent's workflow.

How to install com.mcparmory/polygon

Copy-paste configuration for popular MCP clients.

transport: stdio
Config generated by PluginBench — verify against the source before use.
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "polygon": {
      "command": "uvx",
      "args": [
        "mcparmory-polygon"
      ]
    }
  }
}

Tools & capabilities

Tools this server exposes to the agent.

  • Stock Quotes — Retrieve real-time and historical stock price data
  • Crypto Data — Access cryptocurrency market data and pricing
  • ETF Information — Query exchange-traded fund details and performance
  • Analyst Ratings — Fetch analyst ratings and sentiment for securities
  • Earnings Data — Retrieve earnings reports and earnings calendar information
  • Financial News — Search and retrieve financial news articles and updates

Use cases

  • Research stock valuations and analyst consensus before investment decisions
  • Monitor cryptocurrency market movements and price trends in real-time
  • Track earnings announcements and financial news for portfolio companies
  • Compare ETF performance and holdings across different funds
  • Build financial dashboards that aggregate market data from multiple asset classes
  • Analyze historical price patterns and technical indicators for trading strategies

com.mcparmory/polygon MCP server FAQ

What is the Polygon MCP server?

It's an MCP server that connects to Polygon.io's financial data API, giving AI agents access to stock quotes, crypto data, ETF information, analyst ratings, earnings reports, and financial news.

Is Polygon.io free to use?

Polygon.io offers a free tier with limited API calls and data. Premium plans provide higher rate limits and access to additional data feeds. Check their pricing page for current details.

How do I install this server in Cursor or Claude?

Install via pip (pip install mcparmory-polygon) or use uvx (uvx mcparmory-polygon). Then add it to your MCP client config with your Polygon.io API key in the environment variables.

What authentication does this server require?

You need a Polygon.io API key, which you can obtain by signing up at polygon.io. Set it as an environment variable when configuring the server.

Can I access real-time data or only historical data?

The server supports both real-time market data and historical price/earnings information, depending on your Polygon.io subscription tier.

What markets and asset classes does this cover?

Polygon.io provides data for US stocks, cryptocurrencies, forex, and ETFs. Coverage varies by subscription level.

README (reference)

Source of truth, from the repository.

<p align="center"> <img src="https://wjxawmrpsfuivlicnepc.supabase.co/storage/v1/object/public/newsletter/logo-armory-no-background.png" alt="MCP Armory" height="64"> </p> <h1 align="center">MCP Armory Registry</h1> <p align="center"> Production-ready MCP servers for popular APIs, generated by <a href="https://mcpblacksmith.com">MCP Blacksmith</a>. </p> <p align="center"> <a href="https://github.com/mcparmory/registry/stargazers"><img src="https://img.shields.io/github/stars/mcparmory/registry?style=flat&color=gold" alt="GitHub Stars"></a> <a href="https://github.com/mcparmory/registry/blob/main/servers/github/LICENSE"><img src="https://img.shields.io/badge/license-MIT-blue" alt="License"></a> <img src="https://img.shields.io/badge/servers-79-8A2BE2" alt="Servers"> <img src="https://img.shields.io/badge/python-3.11+-3776AB?logo=python&logoColor=white" alt="Python 3.11+"> </p> <p align="center"> <a href="#servers">Servers</a> &middot; <a href="#install--usage">Install & Usage</a> &middot; <a href="#features">Features</a> &middot; <a href="#how-servers-are-generated">How it works</a> &middot; <a href="#license">License</a> </p>

MCP servers that connect AI agents to real-world APIs. Each server is a standalone Python package — generated from the upstream OpenAPI spec using MCP Blacksmith and tested against the live API before release. Hosted on MCP Armory or run independently.

<!-- SERVERS:BEGIN -->

Servers

🧠 AI & Machine Learning   ElevenLabs · Linkup · Parallel · Perplexity AI · Ragie · Replicate

📊 Analytics   Ahrefs · Datadog · Google Analytics · Google Search Console · Linkly · Mixpanel · PostHog

⛓️ Blockchain & Crypto   Alchemy NFT

💼 CRM & Sales   Apollo

💬 Communication   Atlassian Confluence · Google Gmail · MailerSend · Mailtrap · Postmark · Resend · Slack

🗄️ Data & Databases   Enigma · Pinecone

🛠️ Developer Tools   AgentQL · Apify · Bitbucket · Bright Data · Browserbase · BuiltWith · Canvas · CircleCI · Codacy · Contentful Management · ConvertAPI · E2B · Firecrawl · GitHub · GitLab · LaunchDarkly · Postman · Scrapingant · Semrush AppCenter · Sentry

📄 Documents & Printing   PDF.co

🛒 E-commerce   Shopify Admin

💰 Finance   Alpha Vantage · Polygon · Ramp

👥 HR & Recruiting   BambooHR

☁️ Infrastructure   Globalping · Grafana · PagerDuty · Rootly · Runpod

⚖️ Legal & Compliance   NetLicensing

🗺️ Maps & Location   Google Maps Platform · IP2Location.io IP Geolocation · OpenCage Geocoding

📣 Marketing   Customer.io Journeys Track · Klaviyo

🎬 Media & Entertainment   Canva · Perigon

✅ Productivity   Airtable · Asana · Atlassian Jira · ClickUp · Figma · Google Sheets · Miro · Notion · Outline · Shortcut

🔍 Search   Algolia Search · Google Search

📦 Storage   Box · Files.com · Google Drive

📌 Other   Close

More servers are being added continuously.

<!-- SERVERS:END -->

Install & Usage

Every server is a standalone PyPI package (mcparmory-<server-name>). Each server's own README.md has full credential setup and configuration instructions.

# With uvx (no install needed)
uvx mcparmory-github

# With pip
pip install mcparmory-github
mcparmory-github

MCP client configuration (Claude Desktop, Cursor, Codex, Claude Code):

{
  "mcpServers": {
    "github": {
      "command": "uvx",
      "args": ["mcparmory-github"],
      "env": {
        "BEARER_TOKEN": "ghp_your_token_here"
      }
    }
  }
}

Features

Every server in this registry provides:

  • Full API coverage — all endpoints from the OpenAPI spec are exposed as MCP tools
  • Authentication — API key, Bearer token, Basic auth, OAuth2, JWT, OpenID Connect, and mutual TLS
  • Multi-auth — servers that support multiple auth methods let you configure whichever you prefer
  • Pydantic validation — request parameters are validated before sending to the API
  • Resilience — configurable retries with exponential backoff, connection pooling, and timeouts
  • Response sanitization — optional redaction of sensitive fields from API responses

How servers are generated

Servers are generated by MCP Blacksmith, an automated pipeline that:

  1. Parses an OpenAPI specification
  2. Transforms operations through LLM-driven passes (naming, parameter filtering, enhancement, classification)
  3. Generates a complete MCP server with auth, models, validation, and configuration
  4. Tests every tool against the live API using an autonomous agent
  5. Deploys passing servers to this registry

The generator targets Python 3.11+ and uses FastMCP as the MCP framework.

Contributing

Servers are auto-generated — don't edit server code directly. If you find an issue, open a GitHub Issue describing:

  • Broken or deprecated endpoints
  • Missing or incorrect parameters
  • Authentication problems
  • Incorrect request/response models

We'll re-generate the affected server with the fix. To request a new server, open an issue with a link to the API's OpenAPI spec or documentation.

License

Each generated server is released under the MIT License. The underlying APIs have their own terms of service — see individual server READMEs for details.


<p align="center"> <a href="https://mcparmory.com">MCP Armory</a> &middot; <a href="https://mcpblacksmith.com">MCP Blacksmith</a> &middot; <a href="https://docs.mcpblacksmith.com/quickstart">Docs</a> </p>

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