Polygon.ioStock Market DataMarket data

Previous close by stock ticker — prior day OHLCV bar

polygon.prev-close

The prior trading day's open/high/low/close/volume bar for one ticker

Price: Price pendingAt provider cost
Success rate: —No success-rate data yetLast 30 days · 0 calls
Latency p50: ——
Last verified: Aug 15, 2026Verified working

GEThttps://toolswitch.dev/v1/tools/polygon.prev-close?ticker=AAPLPreview

Uses platform quota
Synchronous response
Reads public data

Parameters

Parameter	Type	Required	Description	Example
Query parameters
`ticker`	string	Required	path parameter	`AAPL`
`adjusted`	boolean	Optional	true (default) adjusts for splits

Query parameters
tickerstringRequired
path parameter
Example: AAPL
adjustedbooleanOptional
true (default) adjusts for splits

Code samples

Replace $TOOLSWITCH_KEY with the key you created in the console.

Preview

curl -X GET 'https://toolswitch.dev/v1/tools/polygon.prev-close?ticker=AAPL' \
  -H "X-Toolswitch-Key: $TOOLSWITCH_KEY"

import os
import requests

response = requests.request(
    "GET",
    "https://toolswitch.dev/v1/tools/polygon.prev-close?ticker=AAPL",
    headers={"X-Toolswitch-Key": os.environ["TOOLSWITCH_KEY"]},
)
response.raise_for_status()
print(response.text)

const response = await fetch("https://toolswitch.dev/v1/tools/polygon.prev-close?ticker=AAPL", {
  method: "GET",
  headers: {
    "X-Toolswitch-Key": process.env.TOOLSWITCH_KEY ?? "",
  },
});
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
console.log(await response.text());

This gateway API is in preview; its URL and authentication may change. The example parameters are sample data.