{ "opencollection": "1.0.0", "info": { "name": "River Markets balance API", "version": "1.0.0" }, "request": { "auth": { "type": "apikey", "key": "X-River-Key-Id", "value": "{{X-River-Key-Id}}", "placement": "header" } }, "items": [ { "info": { "name": "balance", "type": "folder" }, "items": [ { "info": { "name": "Get Exchange Balance", "type": "http" }, "http": { "method": "GET", "url": "https://api.rivermarkets.com/v1/balance/exchange", "params": [ { "name": "subaccount_id", "value": "", "type": "query", "description": "Non-custodial subaccount to fetch exchange balances for" } ] }, "docs": "Return live exchange balances (Kalshi, Polymarket) for a non-custodial subaccount." } ] } ], "bundled": true }