ToolVet

Fitness and Body Calculators

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

Every listing from Fitness and Body 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
61.3% on average across 10 listings
Price
$0.02 per call
Trust score
33 to 63, median 60
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
    Heart Rate ZonesFitness and Body Calculators

    Estimated maximum heart rate (Tanaka, Fox) and five training zones as percent of max or by heart-rate reserve (Karvonen).

    x402 APIOther
    $0.02per call on Polygon
    70.6% uptime, 514 msPassing, checked 10 h ago
  • 63trust
    Body Fat NavyFitness and Body Calculators

    Body fat percentage estimate from tape measurements (US Navy method) with fat mass, lean mass and a general category.

    x402 APIOther
    $0.02per call on Polygon
    70.0% uptime, 538 msPassing, checked 4 h ago
  • 63trust
    Bmr TdeeFitness and Body Calculators

    Basal metabolic rate (Mifflin-St Jeor), daily calories by activity level, and a calorie target for a weekly weight change.

    x402 APIOther
    $0.02per call on Polygon
    70.6% uptime, 516 msPassing, checked 9 h ago
  • 62trust
    Macro SplitFitness and Body Calculators

    Protein, carbohydrate and fat grams for a calorie target from a preset or your own percentage split.

    x402 APIOther
    $0.02per call on Polygon
    66.7% uptime, 516 msPassing, checked 10 h ago
  • 60trust
    Calorie BurnFitness and Body Calculators

    Calories burned by an activity (walking, running, cycling, swimming and more) from MET values, body weight and duration.

    x402 APIOther
    $0.02per call on Polygon
    61.5% uptime, 514 msPassing, checked 12 h ago
  • 59trust
    Pace RaceFitness and Body Calculators

    Running pace per km and per mile, speed, and predicted times for other race distances using the Riegel formula.

    x402 APIOther
    $0.02per call on Polygon
    56.3% uptime, 510 msPassing, checked 5 h ago
  • 59trust
    One Rep MaxFitness and Body Calculators

    Estimated one-rep max from weight and reps by the Epley, Brzycki, Lombardi and O'Conner formulas, with a percentage table.

    x402 APIOther
    $0.02per call on Polygon
    56.3% uptime, 492 msPassing, checked 29 min ago
  • 58trust
    Due DateFitness and Body Calculators

    Estimated due date, gestational age and trimester from the last period (Naegele rule), with key milestone dates.

    x402 APIOther
    $0.02per call on Polygon
    53.3% uptime, 522 msPassing, checked 9 h ago
  • 33trust
    Ideal WeightFitness and Body Calculators

    Ideal body weight by the Devine, Robinson, Miller and Hamwi formulas from height and sex, in kg and pounds.

    x402 APIOther
    $0.02per call on Polygon
    53.9% uptime, 543 msFailing, checked 20 h ago
  • 33trust
    BmiFitness and Body Calculators

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

    x402 APIOther
    $0.02per call on Polygon
    53.9% uptime, 503 msFailing, checked 20 h ago

Watch these listings in one feed

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.