curl --request POST \
  --url https://api.alpha-labs.trade/api/v1/predictions/proposals/{id}/sell \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "amountUsd": "3.00"
}
'

{
  "data": {
    "trade": {
      "id": "<string>",
      "proposalId": "<string>",
      "groupId": "<string>",
      "walletAddress": "<string>",
      "tradeType": "BUY",
      "tokenAmount": "4.27",
      "tokenDecimals": 123,
      "pricePerTokenUsd": "12.50",
      "totalCostUsd": "12.50",
      "venueFeeUsd": "12.50",
      "pnlPct": "4.27",
      "pnlUsd": "12.50",
      "txSignature": "<string>",
      "createdAt": "2023-11-07T05:31:56Z"
    }
  }
}

{
  "statusCode": 400,
  "message": "Query parameter \"groupId\" is required",
  "error": "Bad Request",
  "code": "NOT_GROUP_MEMBER"
}

{
  "statusCode": 400,
  "message": "Query parameter \"groupId\" is required",
  "error": "Bad Request",
  "code": "NOT_GROUP_MEMBER"
}

{
  "statusCode": 400,
  "message": "Query parameter \"groupId\" is required",
  "error": "Bad Request",
  "code": "NOT_GROUP_MEMBER"
}

{
  "statusCode": 400,
  "message": "Query parameter \"groupId\" is required",
  "error": "Bad Request",
  "code": "NOT_GROUP_MEMBER"
}

{
  "statusCode": 400,
  "message": "Query parameter \"groupId\" is required",
  "error": "Bad Request",
  "code": "NOT_GROUP_MEMBER"
}

Predictions

Sell / cash out

Sell (cash out) part or all of a position. Send amountUsd (desired USDC value to sell — converted to an outcome-token amount at the current price and capped at your position), or max: true to sell the entire position. Exactly one is required. The realized USDC is determined at execution; amountUsd is an approximate target. Sells are sized against the venue’s per-order minimum (typically 5 contracts): a sub-minimum partial sell is floored up to the minimum, a partial that would strand an unsellable sub-minimum remainder extends to a full exit, and a position entirely below the minimum cannot be sold (POSITION_BELOW_MIN) — it settles automatically at resolution.

POST

api

predictions

proposals

{id}

sell

curl --request POST \
  --url https://api.alpha-labs.trade/api/v1/predictions/proposals/{id}/sell \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "amountUsd": "3.00"
}
'

{
  "data": {
    "trade": {
      "id": "<string>",
      "proposalId": "<string>",
      "groupId": "<string>",
      "walletAddress": "<string>",
      "tradeType": "BUY",
      "tokenAmount": "4.27",
      "tokenDecimals": 123,
      "pricePerTokenUsd": "12.50",
      "totalCostUsd": "12.50",
      "venueFeeUsd": "12.50",
      "pnlPct": "4.27",
      "pnlUsd": "12.50",
      "txSignature": "<string>",
      "createdAt": "2023-11-07T05:31:56Z"
    }
  }
}

{
  "statusCode": 400,
  "message": "Query parameter \"groupId\" is required",
  "error": "Bad Request",
  "code": "NOT_GROUP_MEMBER"
}

{
  "statusCode": 400,
  "message": "Query parameter \"groupId\" is required",
  "error": "Bad Request",
  "code": "NOT_GROUP_MEMBER"
}

{
  "statusCode": 400,
  "message": "Query parameter \"groupId\" is required",
  "error": "Bad Request",
  "code": "NOT_GROUP_MEMBER"
}

{
  "statusCode": 400,
  "message": "Query parameter \"groupId\" is required",
  "error": "Bad Request",
  "code": "NOT_GROUP_MEMBER"
}

{
  "statusCode": 400,
  "message": "Query parameter \"groupId\" is required",
  "error": "Bad Request",
  "code": "NOT_GROUP_MEMBER"
}

Authorizations

Authorization

string

header

required

Send your API key as Authorization: Bearer murmo_.... Keys are created in the Murmo app. Header-only — keys are never read from the query string. Valid for the REST API under /api/v1 only (not the GraphQL endpoint).

Path Parameters

string

required

Body

application/json

Send amountUsd (human USD string) OR max: true. When max is true, amountUsd is ignored.

amountUsd

string

A monetary amount as a full-precision plain decimal string in USD — never a number, never raw base units, never scientific notation, never rounded. Parse with a decimal library; round only for display.

Example:

"12.50"

max

boolean

Response

The sell trade.

data

object

Show child attributes

Overview

Endpoints

Sell / cash out

Authorizations

Path Parameters

Body

Response