MCP server

Polygon Io

io.github.pipeworx-io/polygon-io

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Massive (formerly Polygon.io) MCP.

Website Source

At a glance

Type

MCP server

Publisher

pipeworx.io (verified by the MCP Registry)

Status

Working at last check

Tools

54

Token cost

About 27,798 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http polygon-io https://gateway.pipeworx.io/polygon-io/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.polygon-io]
url = "https://gateway.pipeworx.io/polygon-io/mcp"

Gemini CLI

{"mcpServers":{"polygon-io":{"httpUrl":"https://gateway.pipeworx.io/polygon-io/mcp"}}}

Cursor

{"mcpServers":{"polygon-io":{"url":"https://gateway.pipeworx.io/polygon-io/mcp"}}}

VS Code

{"servers":{"polygon-io":{"type":"http","url":"https://gateway.pipeworx.io/polygon-io/mcp"}}}

Antigravity

agy mcp add polygon-io https://gateway.pipeworx.io/polygon-io/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"polygon-io","server_url":"https://gateway.pipeworx.io/polygon-io/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"polygon-io","server_url":"https://gateway.pipeworx.io/polygon-io/mcp"}

Tools

• aggregates ~231 tokens
  Massive (formerly Polygon.io) OHLC price bars for a US stock ticker — 1 minute through quarterly granularity. Returns timestamped open/high/low/close + volume + VWAP. Use for charting equities, intraday analysis, backtesting historical prices.
• daily_open_close ~137 tokens
  Fetch official open, high, low, close, volume, and after-hours/pre-market prices for a US stock ticker on a specific date (YYYY-MM-DD) from Massive (formerly Polygon.io).
• dividends ~134 tokens
  Historical and upcoming cash + stock dividends for a US-listed ticker, from Massive (formerly Polygon.io): ex-date, record date, pay date, declaration date, cash amount, dividend type, frequency. Use for income analysis and dividend-capture strategies.
• exchanges ~111 tokens
  Reference list of exchanges Massive (formerly Polygon.io) covers: US stock exchanges (NYSE, NASDAQ, etc.), options venues, crypto exchanges, and OTC tiers. Returns MIC code, name, asset class, type, locale.
• grouped_daily ~104 tokens
  Fetch OHLCV bars for all US stocks on a given date (YYYY-MM-DD) from Massive (formerly Polygon.io) in a single call; useful for market-wide snapshot or screening.
• market_holidays ~78 tokens
  Return the list of upcoming US stock market holidays from Massive (formerly Polygon.io), including date, holiday name, and exchange status (open/closed/early-close).
• market_status ~37 tokens
  Current market status.
• news ~170 tokens
  Massive (formerly Polygon.io) financial news: ticker-tagged US stock market headlines with publisher, article URL, image, summary, and per-ticker sentiment insights. Use for "what is the news on $TICKER" or "market-moving headlines today". Prefer over web search for equity-focused news.
• previous_close ~95 tokens
  Fetch the previous trading session's open, high, low, close, and volume for a US stock ticker from Massive (formerly Polygon.io).
• splits ~114 tokens
  Historical stock splits for a US-listed ticker, from Massive (formerly Polygon.io): split ratio, execution date, ticker. Use to adjust historical price comparisons across split events.
• ticker_details ~104 tokens
  Fetch full Massive (formerly Polygon.io) reference details for a single ticker: company name, description, SIC code, primary exchange, locale, market cap, phone, address, homepage URL, and logo.
• tickers ~180 tokens
  Search Massive (formerly Polygon.io) reference universe for US stocks, options, indices, forex, and crypto tickers. Returns symbol, name, market, asset class, primary exchange, currency. Use to resolve a company name to a tradable symbol.

Browse

• GitHub tools
• Web search
• GitHub and code hosting
• News
• Stocks and markets

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