Polygon.io

At a glance

Availability: Experimental (how to enable).
Auth: API key.
Connection: The key from POLYGON_API_KEY is sent as the Bearer prefixed Authorization header.
Docs: https://massive.com/docs/rest/quickstart

Set these per environment. See Connect an integration.

Variable	Required	Description
`POLYGON_API_KEY`	Yes	API key from the Massive (formerly Polygon.io) dashboard, sent as an Authorization: Bearer header Docs.

Create an account: Sign up at https://massive.com (Polygon.io is now Massive). The free Basic plan works for testing: it includes end-of-day stock data, 2 years of history, and 5 API calls per minute.
Copy your API key: Open https://massive.com/dashboard/keys and copy the API key shown for your account. Existing Polygon.io keys keep working.
Store the key: Set the key as POLYGON_API_KEY. It is sent as an Authorization: Bearer header on every request.
Verify access: Call the Get Previous Close tool with a ticker like AAPL. A 401 means the key is invalid; a 429 means you hit the 5 requests/minute limit on the free plan.

Polygon.io was renamed to Massive in October 2025; api.polygon.io and api.massive.com run in parallel and accept the same keys, so this connector’s api.polygon.io endpoints continue to work.
All five tools are available on the free Basic plan; data recency depends on your plan (end-of-day on Basic, 15-minute delayed on Starter/Developer, real-time on Advanced).
The free Basic plan is limited to 5 API calls per minute; exceeding it returns HTTP 429.

Tool	Access	Description
Get Aggregate Bars	Read	Get OHLCV aggregate bars (candles) for a stock ticker over a custom date range and time window
Get Previous Close	Read	Get the previous trading day’s open, high, low, close, and volume for a stock ticker
Get Daily Open/Close	Read	Get the open, close, high, low, volume, and pre-market/after-hours prices for a stock ticker on a specific date
Search Tickers	Read	Search and list ticker symbols across stocks, indices, forex, and crypto reference data
Get Ticker Details	Read	Get reference details for a single ticker: company name, market, exchange, market cap, description, and identifiers
Get Market Status	Read	Get the current trading status of US exchanges and market-wide sessions (open, closed, early hours, after hours) - a cheap check before quoting prices
Get Ticker News	Read	Get recent news articles for a ticker, including publisher, summary, and per-ticker sentiment insights

Get daily price bars for a ticker I provide over the last month using Polygon.io and summarize the trend.
Look up the previous trading day’s open, high, low, and close for a ticker I provide.
Search Polygon.io reference data for a company name I provide and show the matching ticker symbols with their exchanges.