curl --request POST \
  --url https://api.iotools.cloud/v1/tool/beam-reaction-calculator \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "beamLength": "10",
  "lengthUnit": "m",
  "forceUnit": "kN",
  "supportAPosition": "0",
  "supportBPosition": "10",
  "udlMagnitude": "0",
  "udlStart": "0",
  "udlEnd": "10",
  "pointLoad1Magnitude": "20",
  "pointLoad1Position": "5",
  "pointLoad2Magnitude": "0",
  "pointLoad2Position": "5"
}
'

{
  "tool": "beam-reaction-calculator",
  "tool_version": "1.0.2",
  "outputs": {
    "status": "Support A: 10 kN (up) · Support B: 10 kN (up), for a total load of 20 kN.",
    "result": [
      {
        "property": "Reaction at Support A",
        "value": "10 kN"
      },
      {
        "property": "Reaction at Support B",
        "value": "10 kN"
      },
      {
        "property": "Total Load",
        "value": "20 kN"
      },
      {
        "property": "Formula",
        "value": "ΣM_A = 0 → R_B × (10 − 0) = 100; ΣF = 0 → R_A + R_B = 20"
      }
    ],
    "loadTable": [
      {
        "load": "Point load 1",
        "magnitude": "20 kN",
        "position": "5 m",
        "arm-from-a": "5 m"
      }
    ]
  },
  "credits_used": 5,
  "credits_remaining": null
}