Code: needs_account. Type: https://lender.report/errors/needs-account/.
{
"type": "https://lender.report/errors/needs-account/",
"title": "This needs a free account",
"status": 403,
"code": "needs_account",
"detail": "One plain sentence that names the field and what is accepted."
} All the types are on the errors page. The API and MCP docs are at /developers/.