Tool detail

market-news

Returns recent news articles relevant to prediction markets published within a given UTC date window.

Categories: Prediction markets, News

Use when

find recent news relevant to prediction markets
monitor headlines that could move Polymarket or Kalshi odds
pull prediction-market news for a specific date range

Not for

not market prices or odds — headlines only

Inputs

GET query params: publishDateFrom (ISO-8601 datetime, required), publishDateTo (ISO-8601 datetime, required)

Admitted input schema

{
  "type": "object",
  "properties": {
    "publishDateFrom": {
      "type": "string",
      "minLength": 0,
      "maxLength": 4096,
      "description": "Inclusive UTC start time for news publication date."
    },
    "publishDateTo": {
      "type": "string",
      "minLength": 0,
      "maxLength": 4096,
      "description": "Inclusive UTC end time for news publication date."
    }
  },
  "required": [
    "publishDateFrom",
    "publishDateTo"
  ],
  "additionalProperties": false
}

Endpoint

Method: GET
URL: https://api.predictionmarketdata.io/market-news

Payment

Protocol: x402
Listed price: 0.001 USDC per call on Base
Payment method: exact
Network: eip155:8453
Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Listed terms are catalog metadata. The caller supplies inputs and calls the tool outside Onelayer. If payment is required, the caller uses a compatible wallet to pay.

Source

Directory: Coinbase x402 Bazaar
Record: GET https://api.predictionmarketdata.io/market-news
Retrieved: 2026-09-30T20:37:07.382Z
Catalog file SHA-256: 6837ccddf886f0007cf3727ea9d27faaa5047b51b4f425345c554ce1c271a524
Catalog built: 2026-09-30T22:31:58.034Z