Discover / fitness-calc.x402tookit.com

Fitness and Body Calculators

■ Challenge detected

Body mass index from weight and height, metric or imperial, with the WHO adult category and the 18.5 to 24.9 weight range.

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

Endpoint

curl -i https://fitness-calc.x402tookit.com/bmi
# 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://fitness-calc.x402tookit.com

  • GET/due-dateNo price listedEstimated due date, gestational age and trimester from the last period (Naegele rule), with key milestone dates.
  • GET/ideal-weightNo price listedIdeal body weight by the Devine, Robinson, Miller and Hamwi formulas from height and sex, in kg and pounds.
  • GET/pace-raceNo price listedRunning pace per km and per mile, speed, and predicted times for other race distances using the Riegel formula.
  • GET/bmiNo price listedBody mass index from weight and height, metric or imperial, with the WHO adult category and the 18.5 to 24.9 weight range.
  • GET/body-fat-navyNo price listedBody fat percentage estimate from tape measurements (US Navy method) with fat mass, lean mass and a general category.
  • GET/macro-splitNo price listedProtein, carbohydrate and fat grams for a calorie target from a preset or your own percentage split.
  • GET/bmr-tdeeNo price listedBasal metabolic rate (Mifflin-St Jeor), daily calories by activity level, and a calorie target for a weekly weight change.
  • GET/heart-rate-zonesNo price listedEstimated maximum heart rate (Tanaka, Fox) and five training zones as percent of max or by heart-rate reserve (Karvonen).
  • GET/calorie-burnNo price listedCalories burned by an activity (walking, running, cycling, swimming and more) from MET values, body weight and duration.
  • GET/one-rep-maxNo price listedEstimated one-rep max from weight and reps by the Epley, Brzycki, Lombardi and O'Conner formulas, with a percentage table.

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/fitness-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 detected402683ms

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 Fitness and Body Calculators?

Its listed price is $0.02.

What payment terms does Fitness and Body 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 Fitness and Body Calculators listed?

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

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