MCP Server

fuelcenter

io.github.codymcc4/fuelcenter
Healthcare Public & reachable MCP 2026-07-28

What this MCP does

Calculates running pace, race times, carbohydrate fueling, hydration, sodium needs, heat adjustments, and gel comparisons.

carb-loading
Carb Loading Calculator
Calculate pre-race carb loading targets by race type, body weight, finish time, and experience level. Returns daily carb target, protocol length, total carbs, and pre-race meal size.
Read only Idempotent
Input schema
{'type': 'object', 'required': ['bodyWeightLbs', 'raceType', 'finishTimeHours', 'finishTimeMinutes', 'experience'], 'properties': {'raceType': {'enum': ['half', 'marathon', 'ultra'], 'type': 'string', 'description': 'Race distance category.'}, 'experience': {'enum': ['first_timer', 'intermediate', 'experienced', 'elite'], 'type': 'string', 'description': 'Runner experience level.'}, 'hasGIIssues': {'type': 'boolean', 'description': 'Whether the runner has a sensitive stomach. Default false.'}, 'bodyWeightLbs': {'type': 'number', 'description': 'Body weight in pounds.'}, 'finishTimeHours': {'type': 'number', 'description': 'Expected finish time, hours portion.'}, 'finishTimeMinutes': {'type': 'number', 'description': 'Expected finish time, minutes portion.'}}}
fueling-plan
Fueling Plan
Build a minute-by-minute race or long-run fueling plan. Returns target carbs/hour, gel count, gel timing schedule, and total carbs. This is the core FuelCenter tool.
Read only Idempotent
Input schema
{'type': 'object', 'required': ['hours', 'minutes', 'intensity', 'gelKey'], 'properties': {'hours': {'type': 'number', 'description': 'Race or run duration, hours portion.'}, 'buffer': {'type': 'number', 'description': 'Minutes of buffer at start and end where no gel is taken. Default 5.'}, 'gelKey': {'enum': ['sis_beta_fuel', 'maurten_100', 'maurten_160', 'precision_pf30', 'gu_energy', 'gu_roctane', 'tailwind', 'spring_energy', 'carbs_fuel', 'neversecond_c30', 'huma_chia'], 'type': 'string', 'description': 'Gel product key. See /api/tools/gel-comparison for full catalog.'}, 'minutes': {'type': 'number', 'description': 'Race or run duration, minutes portion.'}, 'drinkMix': {'type': 'boolean', 'description': 'Whether the runner uses a carbohydrate drink mix. Default false.'}, 'intensity': {'enum': ['easy', 'easy_moderate', 'moderate_hard', 'race_day'], 'type': 'string', 'description': 'Effort level.'}, 'targetCPH': {'type': 'number', 'description': 'Target carbs per hour. If omitted, default is derived from guideline.'}, 'experience': {'enum': ['standard', 'experienced'], 'type': 'string', 'description': 'Runner experience with fueling. Default "standard".'}, 'drinkCarbsTotal': {'type': 'number', 'description': 'Total grams of carbs from drink mix across the run. Default 0.'}}}
gel-comparison
Gel Comparison
Return the FuelCenter gel catalog (SiS Beta Fuel, Maurten, Precision, GU, Tailwind, Spring, Carbs Fuel, neversecond, Huma) with carbs, price, caffeine, weight, and carbs-per-dollar. Optionally sort.
Read only Idempotent
Input schema
{'type': 'object', 'properties': {'sortKey': {'enum': ['carbsPerDollar', 'carbs', 'priceUsd', 'weightG', 'caffeineMg'], 'type': 'string', 'description': 'Column to sort by. Default "carbsPerDollar".'}, 'sortDirection': {'enum': ['asc', 'desc'], 'type': 'string', 'description': 'Sort direction. Default "desc".'}}}
heat-adjustment
Heat Adjustment
Estimate how temperature and humidity will slow your race pace and change your fluid needs. Returns adjusted pace, slowdown percent, dew point, risk level, and fueling note.
Read only Idempotent
Input schema
{'type': 'object', 'required': ['paceSecondsPerMile', 'distanceMiles', 'tempF', 'humidity'], 'properties': {'tempF': {'type': 'number', 'description': 'Air temperature at race time in degrees Fahrenheit.'}, 'humidity': {'type': 'number', 'description': 'Relative humidity as a percentage, 0-100.'}, 'distanceMiles': {'type': 'number', 'description': 'Race distance in miles.'}, 'paceSecondsPerMile': {'type': 'number', 'description': 'Your goal pace in seconds per mile (cool-weather pace).'}}}
hydration
Hydration Calculator
Estimate fluid and sodium needs for a race or long run based on body weight, duration, intensity, temperature, and humidity.
Read only Idempotent
Input schema
{'type': 'object', 'required': ['bodyWeightLbs', 'durationMinutes', 'intensity', 'tempF', 'humidity'], 'properties': {'tempF': {'type': 'number', 'description': 'Temperature in Fahrenheit.'}, 'humidity': {'type': 'number', 'description': 'Relative humidity, 0-100.'}, 'intensity': {'enum': ['easy', 'moderate', 'hard', 'race'], 'type': 'string', 'description': 'Effort level.'}, 'bodyWeightLbs': {'type': 'number', 'description': 'Body weight in pounds.'}, 'durationMinutes': {'type': 'number', 'description': 'Run or race duration in minutes.'}}}
pace-calculator
Pace Calculator
Given any two of distance, total time, or pace-per-mile, calculate the third. Returns pace per mile, per km, splits, and speed.
Read only Idempotent
Input schema
{'type': 'object', 'required': ['mode'], 'properties': {'mode': {'enum': ['pace', 'time', 'distance'], 'type': 'string', 'description': 'Which field to solve for.'}, 'totalSeconds': {'type': 'number', 'description': 'Required for mode "pace" or "distance".'}, 'distanceMiles': {'type': 'number', 'description': 'Required for mode "pace" or "time".'}, 'paceSecondsPerMile': {'type': 'number', 'description': 'Required for mode "time" or "distance".'}}}
race-time-predictor
Race Time Predictor
Predict your finish time at common distances (5K through 100 miles) from a recent race result using the Riegel formula.
Read only Idempotent
Input schema
{'type': 'object', 'required': ['knownDistanceMiles', 'knownTimeSeconds'], 'properties': {'exponent': {'type': 'number', 'description': 'Riegel exponent. Default 1.06.'}, 'knownTimeSeconds': {'type': 'number', 'description': 'Finish time for that race, in total seconds.'}, 'knownDistanceMiles': {'type': 'number', 'description': 'Distance of your recent race, in miles.'}}}
Added
gel-comparison
Sept. 17, 2026, 12:41 p.m.
Added
carb-loading
Sept. 17, 2026, 12:41 p.m.
Added
hydration
Sept. 17, 2026, 12:41 p.m.
Added
heat-adjustment
Sept. 17, 2026, 12:41 p.m.
Added
pace-calculator
Sept. 17, 2026, 12:41 p.m.
Added
race-time-predictor
Sept. 17, 2026, 12:41 p.m.
Added
fueling-plan
Sept. 17, 2026, 12:41 p.m.