Polymarket Market Hourly Price Candles (by Condition ID & Time Range)

omnial/polymarket-hourly-price-candles

Given a Polymarket market's condition ID and a start and end time, returns hourly price candles for that window: for each hour its start and end timestamps (Unix seconds), open, high, low and close prices on a 0-to-1 scale, traded volume and number of trades. Hours with no trades are left out. Also echoes the condition ID and the interval in minutes.

activeper callv1

Price

Up to $0.0328 per call; you pay what the call used

The price shown is the price you pay. No monthly minimum. Top-ups start at $5.

Data source

Polymarket

Data from Polymarket.

Use it

Five steps: search, inspect, learn, run, settle. No per-tool setup; your agent reaches this tool through the meta-tools it already has.

agent

// 1. search: find the tool
omnial_search({ query: "what you need" })

// 2. inspect: price and input schema
omnial_inspect({ tool: "omnial/polymarket-hourly-price-candles" })

// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "omnial/polymarket-hourly-price-candles" })

// 4. run: price the exact call first, then run it
omnial_execute({ tool: "omnial/polymarket-hourly-price-candles", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "omnial/polymarket-hourly-price-candles", input: { /* ... */ } })

// 5. settle: the call is charged when it finishes, nothing to do

Not connected yet? Point your MCP client at https://mcp.eden-engine.com/mcp, then copy a config for your client.

Pricing

Every charge this tool can incur.

Charge	Price
Per call	$0.0328

Updated: Oct 17, 2026

Input and output schemas

Input schema

input_schema.json

{
  "type": "object",
  "required": [
    "condition_id",
    "start_time",
    "end_time"
  ],
  "properties": {
    "end_time": {
      "type": "integer",
      "maximum": 9007199254740991,
      "minimum": 1,
      "description": "The end of the window, in Unix seconds."
    },
    "interval": {
      "enum": [
        60
      ],
      "type": "integer",
      "default": 60,
      "description": "The candle length in minutes; only hourly candles (60) are offered."
    },
    "start_time": {
      "type": "integer",
      "maximum": 9007199254740991,
      "minimum": 1,
      "description": "The start of the window, in Unix seconds."
    },
    "condition_id": {
      "type": "string",
      "pattern": "^0x[0-9a-fA-F]{64}$",
      "description": "The Polymarket market's condition ID: 0x followed by 64 hexadecimal characters."
    }
  },
  "additionalProperties": false
}

Output schema

output_schema.json

{
  "type": "object",
  "properties": {
    "candles": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "low": {
            "type": "number",
            "description": "The lowest price in the hour (0 to 1)."
          },
          "high": {
            "type": "number",
            "description": "The highest price in the hour (0 to 1)."
          },
          "open": {
            "type": "number",
            "description": "The first price in the hour (0 to 1)."
          },
          "close": {
            "type": "number",
            "description": "The last price in the hour (0 to 1)."
          },
          "volume": {
            "type": "number",
            "description": "The volume traded in the hour."
          },
          "timestamp": {
            "type": "number",
            "description": "The start of the hour, in Unix seconds."
          },
          "trades_count": {
            "type": "number",
            "description": "The number of trades in the hour."
          },
          "end_period_ts": {
            "type": "number",
            "description": "The end of the hour, in Unix seconds."
          }
        }
      },
      "description": "One candle per hour with trades, oldest first."
    },
    "interval": {
      "type": "number",
      "description": "The candle length in minutes (60)."
    },
    "condition_id": {
      "type": "string",
      "description": "The market's condition ID, as sent."
    }
  },
  "description": "The market's hourly candles."
}