Developers

Data API

An open feed of the crowd prediction probabilities on Tradeeverything.com. Pull the live odds and the daily end of day snapshots to study or to sync with your own prediction data.

Data only. There is no trading through the API. Everything it returns is the same play token crowd consensus you see in the markets.

Quick start

One base URL. No key and no sign up. CORS is open so you can call it straight from a browser.

https://tradeeverything.com/api/v1
curl https://tradeeverything.com/api/v1/markets

Please keep to 120 requests a minute per address and credit Tradeeverything.com when you republish.

Endpoints

Four read only routes. Every route returns JSON.

GET/api/v1/markets

Every market with its current crowd probability. The list is paged at 50. Pass ?limit and ?offset to page. Each response carries total and limit and offset and next which is the offset of the next page or minus one at the end.

{ "total": 89, "limit": 50, "offset": 0, "next": 50, "markets": [ { "id": "8a3c1f2e-9b4d-4c6a-bf10-2e7d9c1a5b3f", "slug": "will-humans-land-on-mars-before-2030", "question": "Will humans land on Mars before 2030?", "category": "Space", "probability": 0.37, "probabilityPercent": 37, "volume": 48210, "traders": 63, "status": "open", "closesAt": "2029-12-31T00:00:00Z" } ] }
GET/api/v1/markets/{id}

One market by its id with the same fields as the list. A resolved market also carries an outcome.

GET/api/v1/markets/{id}/history

The daily end of day probability series for one market.

{ "id": "8a3c1f2e-9b4d-4c6a-bf10-2e7d9c1a5b3f", "history": [ { "date": "2026-07-06", "probability": 0.34 }, { "date": "2026-07-07", "probability": 0.37 } ] }
GET/api/v1/eod

End of day probabilities for every market on a completed day. Add ?date=YYYY-MM-DD to pick a day or leave it off for the latest.

[ { "id": "8a3c1f2e-9b4d-4c6a-bf10-2e7d9c1a5b3f", "question": "Will humans land on Mars before 2030?", "category": "Space", "probability": 0.34, "volume": 47180, "traders": 61, "status": "open", "date": "2026-07-07" } ]

Fields

  • id is the stable id for the market.
  • slug is the url slug for the market.
  • probability is the crowd consensus chance of YES expressed as a value from 0 to 1.
  • probabilityPercent is the same value rounded to a whole percent.
  • volume is the total number of Mangos traded on the market.
  • traders is the number of unique accounts that have placed a trade on the market.
  • status is open or closed or resolved. Resolved markets also carry an outcome.
  • closesAt is when trading stops. Expressed in UTC.
  • date is the day an end of day snapshot is for.

Terms

The API is free to use. The numbers are a play token crowd consensus and are not financial advice or a forecast of real world outcomes. Do not present them as certainties. Please credit Tradeeverything.com.