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Polygon.io

Finance

Real-time and historical stock, options, forex, and crypto data

Polygon.io provides institutional-grade real-time and historical market data for stocks, options, forex, and crypto via a clean REST and WebSocket API.

Details

Auth Type

API Key (apiKey param)

Rate Limit

5 req/min (free), unlimited (paid)

Pricing

Free (15-min delay); from $29/month

Full Docs

API Key (apiKey param)

1. Go to https://polygon.io/dashboard 2. Copy your API key 3. Paste it in the API Key field

Get API Credentials

Getting Started

Try It Instantly

Click "Try It" above to test the API in the playground

Add to Your Agent

Click "Add to Agent" to get your API key and integrate

Common Use Cases

Real-time stock quotes

Historical OHLCV data

Options chain

Forex rates

Crypto prices

💻 Code Examples

Get started quickly with these code examples in your favorite language

curl -X GET \
  'https://www.callio.dev/api/proxy/polygon-io/forward?target=https%3A%2F%2Fapi.polygon.io%2Fendpoint' \
  -H 'Authorization: Bearer YOUR_CALLIO_KEY' \
  -H 'Content-Type: application/json'

💡 Tip: Replace YOUR_CALLIO_KEY with your actual Callio API key from the dashboard.

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