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Fitness and Body Calculators – Macro Split
x402
Fitness and Body Calculators – Macro Split is a paid API for AI agents from fitness-calc.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-30).
Calculates protein, carbohydrate, and fat grams from a daily calorie target using a preset ratio or custom percentage split.
Price / call$0.02
Success—
StatusUnknown
How this service works
Protein, carbohydrate and fat grams for a calorie target from a preset or your own percentage split.
Output
Returns a structured response with the daily calorie target, the macro split as percentages (protein/carbs/fat), grams for each macro, and calories contributed by each macro. Also includes the preset name used (or indicates custom), a human-readable summary, and an optional disclaimer. May include validation reasons or flags if inputs were adjusted or degraded.
Example use cases
Meal plan macro breakdown for fat loss
“I'm on a 1600-calorie cut — use a high-protein macro split and tell me exactly how many grams of protein, carbs, and fat I should be eating each day.”
Custom macro split for athlete bulking
“I want to bulk at 3200 calories with a custom split of 30% protein, 50% carbs, and 20% fat — how many grams does that work out to for each macro?”
Balanced macros for general health maintenance
“Can you give me a balanced macro breakdown for 2200 calories a day? Use the default balanced split and show me the grams for protein, carbs, and fat.”
Technical details
Endpoint
GEThttps://fitness-calc.x402tookit.com/macro-split?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, deterministic macro breakdown in grams from a calorie target — especially when you want to use standard presets (balanced, high-protein, low-carb, low-fat) or supply your own exact percentage split. Ideal for diet planning, meal prep apps, and nutrition coaching agents where the user has a calorie goal and needs actionable gram targets per macronutrient.
Side effects
- Calories outside the 500–10000 range return a validation error
- Custom percentages that do not sum to 100 return an error
- Missing required 'calories' parameter returns a bad request error
- Partial custom percentages (e.g. only proteinPct provided without carbPct and fatPct) may trigger fallback or error
- Payment not fulfilled results in HTTP 402 before calculation is attempted
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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