roi derived

{
  "input": {
    "type": "http",
    "method": "GET",
    "queryParams": {
      "college": "UT Austin"
    }
  },
  "output": {
    "type": "json",
    "errors": {
      "400": {
        "example": {
          "error": "invalid request"
        },
        "description": "Invalid or missing parameter(s). Returned before the payment gate on paid requests, so a malformed call is never charged. JSON body: { error: <what is wrong and how to fix it> } plus usage hints."
      },
      "402": {
        "description": "Payment required — x402 v2 challenge; the accepts array lists scheme, network, and amount. Retry the same request with a PAYMENT-SIGNATURE (v2) or X-PAYMENT (v1) header. Verification is free."
      },
      "500": {
        "example": {
          "error": "upstream_failed"
        },
        "description": "Unexpected server error. If a payment settled without a usable result, contact info@theaslangroupllc.com with the settlement tx hash for a re-run or credit."
      }
    },
    "example": {
      "roi_verdict": {
        "score": "7.8/10",
        "summary": "CS degree at UT Austin with $45K debt has excellent ROI. Median starting salary of $85K gives a 0.53x debt-to-income ratio.",
        "overall_rating": "strong"
      },
      "debt_analysis": {
        "dti_assessment": "excellent (<0.75x)",
        "payoff_timeline": "4-5 years at standard repayment"
      }
    }
  }
}