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

Returns price history chart data for a single market. Each data point represents the YES probability at a given timestamp, suitable for rendering a price line chart.

Authentication

None required. This is a public endpoint.

Request

Path Parameters

Parameter	Type	Required	Description
id	integer	Yes	The market ID

Example

curl https://intotes.com/api/v1/markets/101/chart

Response

200 OK

Returns an array of data points ordered chronologically. Each point contains a timestamp and the YES probability at that moment.

[
  {
    "timestamp": "2026-04-04T12:00:00Z",
    "probability": 0.40
  },
  {
    "timestamp": "2026-04-04T13:00:00Z",
    "probability": 0.42
  },
  {
    "timestamp": "2026-04-04T14:00:00Z",
    "probability": 0.38
  },
  {
    "timestamp": "2026-04-04T15:00:00Z",
    "probability": 0.45
  },
  {
    "timestamp": "2026-04-04T16:00:00Z",
    "probability": 0.44
  }
]

Errors

Status	Code	Description
400	invalid_market_id	The market ID is not a valid integer
404	market_not_found	No market exists with the given ID
500	internal_error	Unexpected server error