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Fitness Tools MCP server

online · 100% uptime
by almostjacked·io.github.almostjacked/fitness-tools·v0.3.4·1 stars
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Deterministic fitness calculators — TDEE, adaptive TDEE, body fat, 1RM, macros — with consensus.

A89/100grade A
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Safety scan
A89/100

full report

Adoption
Growing

1 stars31 downloads/wk

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Fitness Tools tools (10)

write = sends, deletes, buys or posts
  • activity-multiplierFree

    Estimate the TDEE activity multiplier via the classic lookup table or a NEAT+EAT model (occupation/steps for non-exercise, training volume for exercise).

  • adaptive-tdeeFree

    Measure actual TDEE from a logged history of daily weight and/or calorie intake. Default method (kalman) is a joint Kalman filter over true weight and TDEE — handles missing days, gates outliers, and reports uncertainty (CI95) alongside denoised true weight; regression/endpoints are simple window-based estimates kept for comparison. Use instead of formula TDEE once real logged data exists. Each entry needs at least one of weight/kcal (not necessarily both). Entry dates must span 10 years or less (earliest to latest). Note: all methods need at least one weigh-in (kalman) or two (regression/endpoints) — a history with zero weight entries throws under the kalman default; pass methods:'all' to get a graceful empty/skipped result instead.

  • body-fatFree

    Estimate body-fat % via US Navy circumference, Jackson-Pollock 3-site skinfold, and Deurenberg (BMI-based) methods.

  • ffmiFree

    Compute the Fat-Free Mass Index (FFMI) and its height-adjusted form from weight and body fat (or lean mass), and flag whether it exceeds the ~25 natural ceiling.

  • macrosFree

    Compute protein/fat/carb grams for a calorie target using the g-per-kg-bodyweight method, with goal-based protein defaults.

  • muscle-potentialFree

    Estimate drug-free maximum bodyweight at a target body-fat % via Casey Butt (wrist+ankle), the FFMI~25 natural cap, and Berkhan's max-contest-weight model. Men only in v1.

  • one-rep-maxFree

    Estimate 1RM from a submaximal set via Epley, Brzycki, Lombardi, Wathan, O'Conner, and Mayhew; returns a %1RM load chart.

  • powerlifting-attemptsFree

    Deterministic opener/second/third attempts from an estimated 1RM, plus a warmup ramp and per-side plate loading. Tunable by aggressiveness and available plates.

  • rsmiFree

    Estimate the appendicular skeletal muscle index (RSMI) from a DXA value (direct) and/or an anthropometric estimate (Wen 2011), and flag low muscle mass against EWGSOP2, AWGS, and Baumgartner sarcopenia cutoffs.

  • tdeeFree

    Estimate BMR and TDEE via Mifflin-St Jeor, Harris-Benedict, Katch-McArdle, and Cunningham. Provide body_fat or lean_mass to unlock the LBM-based methods.

Public scan report

scanner v0.1.9 · 2026-09-24 · same rubric, same numbers if you re-run it

no findings
  • Code scan6 source files scanned25/25
  • Live reliabilityremote reachable in 561ms20/20
  • Tool poisoning10 tool descriptions checked15/15
  • Auth qualityopen endpoint, read-only tools10/15
  • Maintenancelast push 62 days ago12/15
  • Maintainer identityregistry namespace matches repository owner7/10
Overall 89/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Fitness Tools compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
89/100
higher than 80% of 48,255 servers
Tools
10
the typical server has 7
Tools that change things
0%
typical: 0%. Fewer write tools means less an agent can break
Uptime
100%
of our recent checks; the typical remote server answers 100%
Response time
120 ms
faster than 79% of 30,031 servers
GitHub stars
1
more than 65% of 28,688 servers
Downloads a week
31
more than 19% of 12,191 servers with a package

What its tools let an agent do: 10 read

Install Fitness Tools in Claude Code, Cursor or VS Code

claude mcp add --transport http fitness-tools https://fitness-tools-mcp.ajwallacemusic.workers.dev/mcp
Add to Cursor

What the publisher says

From the Fitness Tools repository's README, as published. We do not edit it. Read it on GitHub

Fitness Tools

📖 Documentation · npm

Use it with your AI right now: add the hosted MCP connector https://fitness-tools-mcp.ajwallacemusic.workers.dev/mcp in claude.ai / ChatGPT settings, install one-click in Cursor or VS Code, or grab the Claude Desktop .mcpb.

Composable, deterministic fitness calculators — BMR/TDEE, body fat, 1RM, macros, activity multiplier, powerlifting attempts, and natural muscular potential. Each calculator runs several published formulas and reports a consensus across them.

This repo ships three separate, independently-usable artifacts:

self-describing calculators that run natively in the browser and on the server. This is the product.

  • @almostjacked/fitness-tools — the npm library. Validated,

It re-exposes the same calculators over HTTP (identical math, identical results) and is inert until you run or host it.

  • @almostjacked/fitness-tools-api — a reference HTTP server built on the library.

It exposes the same calculators as MCP tools for agents/LLM clients (identical math), runnable with npx @almostjacked/fitness-tools-mcp.

  • @almostjacked/fitness-tools-mcp — an MCP stdio server built on the library.

Which one do you want?

The API adds a network boundary, not capability. The package works the moment you install

it; the server does nothing until it's running.

Documentation

  • New to it? Getting started
  • What each calculator does: Tools
  • Calling from an agent: Consumer guide
  • Working on this repo: AGENTS.md

Layout

packages/core   @almostjacked/fitness-tools — the library (the product)
apps/api        @almostjacked/fitness-tools-api  — a reference HTTP server over the library
apps/mcp        @almostjacked/fitness-tools-mcp  — an MCP stdio server over the library

Develop

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Fitness Tools: common questions

Is Fitness Tools MCP server safe?
Yes, by our scan: it is graded A (89/100). Read the Fitness Tools safety report
How do I install Fitness Tools?
It runs remotely at fitness-tools-mcp.ajwallacemusic.workers.dev. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Fitness Tools need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Fitness Tools maintained?
The last commit was 103 days ago (2026-07-24). The latest release is v0.3.4.
Is Fitness Tools up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
How does Fitness Tools compare with other MCP servers?
safety score 89/100 (higher than 80% of 48,255 servers); tools 10 (the typical server has 7); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

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