API

List calls

Public calls across Backd, newest first. Filter to one market to see who called it, and the split.

GEThttps://backd.market/api/v1/callscached 15 seconds

Request

curl "https://backd.market/api/v1/calls?market=4609859&limit=50"

Parameters

Name	In	Type	Description
`market`	query	string	A market id. Adds `backd_split` to the response. Example: `4609859`
`limit`	query	integer	1 to 100. Default 25. Example: `50`

Response

200 OK

{
  "ok": true,
  "count": 2,
  "backd_split": [14, 3],
  "calls": [
    { "id": "5f1c…", "user": { "handle": "edge", "avatar": null }, "market_id": "4609859", "event": "unl-esp-hrv-2026-09-29",
      "question": "Spain: Will Spain win on 2026-09-29?", "outcome": "Yes", "outcome_index": 0, "chance_at_call": 0.82,
      "thesis": "Croatia have nothing to play for.", "copied_from": null, "is_fade": false,
      "status": "open", "profit_on_10": null, "made_at": "2026-09-29T18:02:11Z", "settled_at": null, "url": "https://backd.market/c/5f1c…" }
  ]
}

Fields

Field	Type	Meaning
`calls[].chance_at_call`	number	The chance when the call was made. It never changes.
`calls[].profit_on_10`	number \| null	Profit on a $10 call once settled: 10 ÷ chance − 10 for a win, −10 for a loss, 0 for void. Null while open.
`calls[].status`	string	open, won, lost or void.