ToolVet

Automotive Calculators

10 x402 APIs served from automotive-calc.x402tookit.com

Every listing from Automotive Calculators that ToolVet tracks. Each one is called on a schedule without paying and scored out of 100.

At a glance

Listings
10 x402 APIs
Passing at the latest check
8 of 10
Uptime, 30 days
62.7% on average across 10 listings
Price
$0.02 per call
Trust score
33 to 63, median 61
Paying wallets, 30 days
No usage data
Verified owner
None
Security findings
None found
Listed since
20 Oct 2026

No usage data. The x402 Bazaar reports paying wallets for the x402 APIs it lists; MCP servers and APIs submitted directly have none.

All 10 listings

Ranked by trust score.

  • 63trust
    Gear RpmAutomotive Calculators

    Engine RPM at a road speed (or speed at an RPM) from tire size, axle ratio and transmission gear ratios, with a table by gear.

    x402 APIOther
    $0.02per call on Polygon
    70.6% uptime, 519 msPassing, checked 8 h ago
  • 63trust
    Engine CalcAutomotive Calculators

    Engine displacement in cc, litres and cubic inches from bore, stroke and cylinders; compression ratio and mean piston speed.

    x402 APIOther
    $0.02per call on Polygon
    68.4% uptime, 524 msPassing, checked 5 h ago
  • 63trust
    Acceleration EstimateAutomotive Calculators

    Estimate quarter-mile time and trap speed from weight and horsepower (Hale), plus a power-limited lower bound for 0-60 mph.

    x402 APIOther
    $0.02per call on Polygon
    70.6% uptime, 520 msPassing, checked 11 h ago
  • 62trust
    Lease Vs BuyAutomotive Calculators

    Lease versus buy over the lease term: lease payment from money factor and residual, loan payment, resale equity and net cost.

    x402 APIMarkets & finance
    $0.02per call on Polygon
    65.0% uptime, 541 msPassing, checked 7 h ago
  • 61trust
    Tire CompareAutomotive Calculators

    Tire dimensions from size codes like 225/45R17, and speedometer and odometer error when you change to a different size.

    x402 APIOther
    $0.02per call on Polygon
    64.3% uptime, 515 msPassing, checked 5 h ago
  • 61trust
    Ev EfficiencyAutomotive Calculators

    EV efficiency in kWh per 100 miles, miles per kWh, Wh per km and MPGe, range from battery size, and cost versus a gas car.

    x402 APIOther
    $0.02per call on Polygon
    64.3% uptime, 522 msPassing, checked 2 h ago
  • 60trust
    Towing PayloadAutomotive Calculators

    Towing check in pounds: payload left after people, cargo and tongue weight, tow rating and combined weight limits.

    x402 APICompany & people data
    $0.02per call on Polygon
    60.0% uptime, 513 msPassing, checked 5 h ago
  • 58trust
    DepreciationAutomotive Calculators

    Vehicle value year by year by straight-line, declining-balance or your own yearly percentage drops, with total loss.

    x402 APIOther
    $0.02per call on Polygon
    53.3% uptime, 507 msPassing, checked 10 h ago
  • 34trust
    Fuel Trip CostAutomotive Calculators

    Trip fuel and cost for legs with different mileage (city, highway), tank range, refuel stops, cost per person and a second car.

    x402 APICompany & people data
    $0.02per call on Polygon
    56.3% uptime, 529 msFailing, checked 23 h ago
  • 33trust
    Stopping DistanceAutomotive Calculators

    Stopping distance from speed: reaction distance plus braking distance on dry, wet, snow or ice, with road grade.

    x402 APIOther
    $0.02per call on Polygon
    53.9% uptime, 510 msFailing, checked 20 h ago

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How these numbers are made

Each listing is called on a schedule without paying. Listings with usage or a verified owner are checked about every 30 minutes, others about every 6 hours. Uptime is the share of passing checks over 30 days, averaged across this provider's listings. Trust scores follow the published method. The figures on this page can be a few minutes behind the latest checks, and listings hidden after review aren't counted.