Polygon Io

Daily Open Close

daily_open_close

Read-onlyIdempotent

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).

Input Schema

TableJSON Schema

Name	Required	Description	Default
`date`	Yes
`ticker`	Yes
`adjusted`	No

Output Schema

TableJSON Schema

Name	Required	Description
`low`	No	Low price
`from`	No	Date of data
`high`	No	High price
`open`	No	Opening price
`close`	No	Closing price
`status`	No	API response status
`symbol`	No	Ticker symbol
`volume`	No	Trading volume
`preMarket`	No	Pre-market price
`afterHours`	No	After-hours price

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedOct 8, 2026

changedInput schema / examples

Previous value: -[
-  {
-    "date": "2024-01-15",
-    "ticker": "AAPL"
-  },
-  {
-    "adjusted": true,
-    "date": "2024-01-15",
-    "ticker": "MSFT"
-  }
-]New value: +[
+  {
+    "date": "2026-09-25",
+    "ticker": "AAPL"
+  },
+  {
+    "adjusted": true,
+    "date": "2026-09-25",
+    "ticker": "MSFT"
+  }
+]

Changed2 schema fields changedMay 27, 2026

addedInput schema / examples

Added value: +[
+  {
+    "date": "2024-01-15",
+    "ticker": "AAPL"
+  },
+  {
+    "adjusted": true,
+    "date": "2024-01-15",
+    "ticker": "MSFT"
+  }
+]

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "properties": {
+    "afterHours": {
+      "description": "After-hours price",
+      "type": "number"
+    },
+    "close": {
+      "description": "Closing price",
+      "type": "number"
+    },
+    "from": {
+      "description": "Date of data",
+      "type": "string"
+    },
+    "high": {
+      "description": "High price",
+      "type": "number"
+    },
+    "low": {
+      "description": "Low price",
+      "type": "number"
+    },
+    "open": {
+      "description": "Opening price",
+      "type": "number"
+    },
+    "preMarket": {
+      "description": "Pre-market price",
+      "type": "number"
+    },
+    "status": {
+      "description": "API response status",
+      "type": "string"
+    },
+    "symbol": {
+      "description": "Ticker symbol",
+      "type": "string"
+    },
+    "volume": {
+      "description": "Trading volume",
+      "type": "number"
+    }
+  },
+  "type": "object"
+}

First observedMay 20, 2026

TDQS

Score is being calculated.

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