# fitfly-engine MCP server

Deterministic fitness coaching engine: adaptive programs, progression math, readiness autoregulation

## Links
- Registry page: https://www.getdrio.com/mcp/io-github-dropflyai-fitfly-engine
- Website: https://workout-engine-production-5dd7.up.railway.app/connect

## Install
- Endpoint: https://workout-engine-production-5dd7.up.railway.app/mcp
- Auth: Auth required by registry metadata

## Setup notes
- Remote header: Authorization (required; secret)
- The upstream registry signals required auth or secrets.
- Remote endpoint: https://workout-engine-production-5dd7.up.railway.app/mcp
- Header: Authorization

## Tools
- get_todays_session (Get today's training session) - Today's workout: exercises, sets/reps, per-exercise load guidance and concrete target weights, plus nutrition targets and cycle status. Auto-applies the user's readiness check-in (autoregulation) if they've done one today. Call this to see what the athlete should do now. Endpoint: https://workout-engine-production-5dd7.up.railway.app/mcp
- readiness_checkin (Log a readiness check-in) - Record how the athlete feels today (energy, sleep, soreness — each 1–5). The engine scores readiness and, on the next get_todays_session, reshapes the workout accordingly (reduce volume / reduce intensity / recovery day). Returns the readiness score + modifier. Endpoint: https://workout-engine-production-5dd7.up.railway.app/mcp
- log_workout (Log completed sets) - Record what the athlete actually lifted. The engine runs progression (double-progression, e1RM), detects PRs, and returns per-exercise outcomes (established/progressed/held/deloaded) with next-time targets. Weights are in kg. Endpoint: https://workout-engine-production-5dd7.up.railway.app/mcp
- list_swap_options (List same-area swap options for an exercise) - Valid alternatives for an exercise — same muscle group, filtered to the athlete's equipment/level/injuries. Use before swap_exercise. Endpoint: https://workout-engine-production-5dd7.up.railway.app/mcp
- swap_exercise (Swap an exercise) - Replace an exercise with a valid same-area alternative. scope 'today' = just this session; scope 'program' = going forward. The new lift starts fresh (day-one calibration). Endpoint: https://workout-engine-production-5dd7.up.railway.app/mcp
- get_program (Get the active program) - The athlete's current multi-day program (render-ready). Endpoint: https://workout-engine-production-5dd7.up.railway.app/mcp
- regenerate_program (Regenerate the program) - Rebuild the whole program from the stored profile (~20s AI generation). Use after a profile change or a plateau. Endpoint: https://workout-engine-production-5dd7.up.railway.app/mcp
- nutrition_targets (Get nutrition targets) - The athlete's daily calorie + macro targets, computed from body stats, activity, and goal. Endpoint: https://workout-engine-production-5dd7.up.railway.app/mcp
- meal_plan (Generate a meal plan) - A day of meals hitting the athlete's targets, USDA truth-checked (flags feasible=false with a note when macros are approximate). Slow (~15s AI call). Endpoint: https://workout-engine-production-5dd7.up.railway.app/mcp
- changelog (What the engine changed and why) - The 'what changed & why' feed — the engine's coaching decisions (volume bumps, deloads, swaps) in Coach Fly's voice. Use to explain to the athlete why their plan evolved. Endpoint: https://workout-engine-production-5dd7.up.railway.app/mcp

## Resources
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## Prompts
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## Metadata
- Owner: io.github.dropflyai
- Version: 0.2.0
- Runtime: Streamable Http
- Transports: HTTP
- License: Not captured
- Language: Not captured
- Stars: Not captured
- Updated: Jul 2, 2026
- Source: https://registry.modelcontextprotocol.io