Account by User+Asset
Rocky impl:
GET /v1/account/{user_id}/{asset}✓
Read a single account row by user + asset.
Request
GET /v1/account/{user_id}/{asset}
Response — 200
{
"user_id": "5cfb031b59364467953",
"asset": "USDC",
"available": "85.230000",
"locked": "14.770000"
}
Internal tooling endpoint; web UI uses the FAPI balance instead.