Discover / automotive-calc.x402tookit.com

Automotive Calculators

■ Challenge detected

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

Listed price
$0.02
Challenge detected
1 of the last check
Median response
198 ms
Last checked
21 Oct, 00:26 UTC
In our index since
21 Oct 2026

Endpoint

curl -i https://automotive-calc.x402tookit.com/acceleration-estimate
# 402 Payment Required: pay with an x402 client (USDC on Arbitrum),
# then send the same request again with the payment attached.
10 listed endpoints · on x402 Bazaar

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://automotive-calc.x402tookit.com

  • GET/engine-calcNo price listedEngine displacement in cc, litres and cubic inches from bore, stroke and cylinders; compression ratio and mean piston speed.
  • GET/gear-rpmNo price listedEngine RPM at a road speed (or speed at an RPM) from tire size, axle ratio and transmission gear ratios, with a table by gear.
  • GET/stopping-distanceNo price listedStopping distance from speed: reaction distance plus braking distance on dry, wet, snow or ice, with road grade.
  • GET/acceleration-estimateNo price listedEstimate quarter-mile time and trap speed from weight and horsepower (Hale), plus a power-limited lower bound for 0-60 mph.
  • GET/depreciationNo price listedVehicle value year by year by straight-line, declining-balance or your own yearly percentage drops, with total loss.
  • GET/ev-efficiencyNo price listedEV efficiency in kWh per 100 miles, miles per kWh, Wh per km and MPGe, range from battery size, and cost versus a gas car.
  • GET/tire-compareNo price listedTire dimensions from size codes like 225/45R17, and speedometer and odometer error when you change to a different size.
  • GET/lease-vs-buyNo price listedLease versus buy over the lease term: lease payment from money factor and residual, loan payment, resale equity and net cost.
  • GET/fuel-trip-costNo price listedTrip fuel and cost for legs with different mileage (city, highway), tank range, refuel stops, cost per person and a second car.
  • GET/towing-payloadNo price listedTowing check in pounds: payload left after people, cargo and tongue weight, tow rating and combined weight limits.

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 10 of 10 listed endpoints.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/automotive-calc.x402tookit.com

Recent checks

21 Oct 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.21 Oct 2026
All 1 checks
When (UTC)ResultHTTPResponse
21 Oct, 00:26 UTCChallenge detected402198ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 21 Oct, 00:26 UTC, it returned HTTP 402 or another detected payment-challenge signal. This check did not test payment, delivery or compatibility with the Superstables client.

What price is recorded for Automotive Calculators?

Its listed price is $0.02.

What payment terms does Automotive Calculators advertise?

The listing advertises x402, Arbitrum, Base, Polygon, Solana and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is Automotive Calculators listed?

In x402 Bazaar. Superstables first indexed it on 21 Oct 2026.

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