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Saylor Innovations True Cost of Auto Ownership
x402
Saylor Innovations True Cost of Auto Ownership is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-31).
Calculates total vehicle ownership cost broken down by depreciation, fuel, insurance, maintenance, and loan interest — per month and per mile — with optional side-by-side comparison of two vehicles
Price / call$0.02
Success—
StatusUnknown
How this service works
Depreciation, fuel, insurance, maintenance and interest per month and per mile, with side-by-side comparison
Output
Returns a detailed breakdown of monthly and per-mile ownership costs split into depreciation, fuel, insurance, maintenance, and loan interest components. When a comparison vehicle is provided, returns a side-by-side comparison of both vehicles across all cost categories.
Example use cases
Gas vs EV ownership cost comparison
“I'm deciding between a $38,000 Honda Accord getting 32 MPG and a $42,000 Tesla Model 3. Can you show me the true monthly and per-mile cost of each over 5 years, assuming I drive 12,000 miles a year, electricity costs 14 cents per kWh, and gas is $3.60 per gallon?”
Truck ownership cost breakdown for budget planning
“I just bought a $52,000 pickup truck financed with $45,000 at 8.5% APR over 72 months. It gets about 20 MPG and I drive 18,000 miles a year. What's my full ownership cost per month including depreciation, fuel, insurance, and maintenance?”
Used car total cost estimate before purchase
“I'm looking at a 4-year-old economy car priced at $18,000 — should I expect lower depreciation since it's already aged? Can you calculate the true ownership cost per month and per mile if I hold it for 4 years and drive 10,000 miles a year?”
Technical details
Endpoint
GEThttps://saylorinnovations.com/api/auto/ownership-cost?utm_source=zero.xyzWhen to prefer
Use this endpoint when a user needs a comprehensive, multi-component vehicle ownership cost calculation that goes beyond just the loan payment — especially when they want depreciation, fuel, insurance, and maintenance all factored in together, or need to compare two vehicles side by side. Prefer this over simple loan calculators or fuel-cost estimators when the user's question involves 'true cost', 'total cost of ownership', or 'which car is cheaper to own'.
Side effects
- Missing required 'price' parameter returns an error
- Invalid powertrain value (not gas/hybrid/diesel/ev) may cause unexpected defaults or errors
- EV cost calculations may be inaccurate if kwh_per_100mi and kwh_price are not supplied
- Extremely low or high price values may produce unrealistic depreciation estimates
- Mismatched compare parameters (e.g. compare_powertrain=ev without compare_mpg) may use defaults silently
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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