Pass/caution/fail on tow rating, payload, tongue weight, GCWR and brake rules

Answeringour last check, 2026-10-26

1 of 1checks answered this week

536 msmedian answer time

$0.01listed price per call

$0.01price it asked us

Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.

Endpoint

GET https://saylorinnovations.com/api/auto/towing-capacity

Category	Everything else
Provider host	saylorinnovations.com
Networks	eip155:137, eip155:42161, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp
Payment schemes	exact
Self-reported calls, 30 days	1 from 1 payers (the provider's figure, not ours)

Our checks, last 30 days

Day	Result	HTTP	Asked	Time
2026-10-26	valid payment request	402	$0.01	536 ms

Example input (from the provider)

{
  "method": "GET",
  "queryParams": {
    "curb_weight_lb": "5400",
    "gcwr_lb": "14000",
    "hitch_class": "4",
    "passengers_lb": "450",
    "payload_lb": "1450",
    "tongue_percent": "12",
    "tow_rating_lb": "7700",
    "trailer_weight_lb": "6200"
  },
  "type": "http"
}

Promised output schema (from the provider)

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "method": {
          "enum": [
            "GET"
          ],
          "type": "string"
        },
        "queryParams": {
          "properties": {
            "curb_weight_lb": {
              "description": "optional tow vehicle curb weight, needed with gcwr (query)",
              "type": "string"
            },
            "gcwr_lb": {
              "description": "optional gross combined weight rating (query)",
              "type": "string"
            },
            "hitch_class": {
              "description": "optional 1, 2, 3, 4 or 5 (query)",
              "type": "string"
            },
            "passengers_lb": {
              "description": "optional passenger and cargo weight in the vehicle, default 300 (query)",
              "type": "string"
            },
            "payload_lb": {
              "description": "required vehicle payload capacity from the door placard (query)",
              "type": "string"
            },
            "tongue_percent": {
              "description": "optional tongue weight as percent of trailer weight, default 12 (query)",
              "type": "string"
            },
            "tow_rating_lb": {
              "description": "required maximum tow rating from the owner manual (query)",
              "type": "string"
            },
            "trailer_weight_lb": {
              "description": "required loaded trailer weight (gross, not dry) (query)",
              "type": "string"
            }
          },
          "required": [
            "tow_rating_lb",
            "payload_lb",
            "trailer_weight_lb"
          ],
          "type": "object"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "type": "object"
        },
        "type": {
          "const": "json",
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}

This page as JSON