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Fitness Tools

I
by io.github.almostjacked

Deterministic fitness calculators — TDEE, adaptive TDEE, body fat, 1RM, macros — with consensus.

Power your agent

Add this server

The publisher's own URL. Not a PlugMCP endpoint.

Server URL
https://fitness-tools-mcp.ajwallacemusic.workers.dev/mcp
Provider
Add in Claude

Claude opens with the name and URL filled in. You still confirm it there.

Claude Code
claude mcp add --transport http io.github.almostjacked-fitness-tools https://fitness-tools-mcp.ajwallacemusic.workers.dev/mcp

Run in a terminal.

Claude Desktop
{
  "mcpServers": {
    "io.github.almostjacked-fitness-tools": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://fitness-tools-mcp.ajwallacemusic.workers.dev/mcp"
      ]
    }
  }
}

claude_desktop_config.json

Step-by-step: add this in Claude

Remote URL or a command on your machine? How the two installs differ

Run on PlugMCP

Host a copy with our keys and logs.

A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.

Launch

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Deterministic fitness calculators — TDEE, adaptive TDEE, body fat, 1RM, macros — with consensus.

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:

  • @almostjacked/fitness-tools — the npm library. Validated, self-describing calculators that run natively in the browser and on the server. This is the product.
  • @almostjacked/fitness-tools-api — a reference HTTP server built on the library. It re-exposes the same calculators over HTTP (identical math, identical results) and is inert until you run or host it.
  • @almostjacked/fitness-tools-mcp — an MCP stdio 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.

Which one do you want?

You're…UseWhy
Writing JS/TS (browser, Node, edge)@almostjacked/fitness-tools (npm)Runs in-process. Install, import, call. No server, no network.
Calling from another language / curl / a no-code tool@almostjacked/fitness-tools-api (HTTP)Same calculators over HTTP. You run/host it.
Building a remote frontend@almostjacked/fitness-tools-apiSelf-describing catalog + OpenAPI over the wire.
Wiring the calculators into an MCP client / agent@almostjacked/fitness-tools-mcpnpx an MCP stdio server; one tool per calculator.

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

corepack enable              # pnpm version is pinned in package.json
pnpm install
pnpm -r test                 # core + api + mcp test suites
pnpm -C packages/core build  # build the library
pnpm -C apps/api dev         # run the reference server on :8080

See each package's README — library · reference server.

License

MIT — free, open-source, and usable in commercial products. See LICENSE. Built on published formulas (Mifflin-St Jeor, US Navy, Jackson-Pollock, Epley, Casey Butt, etc.); contributions welcome.

How do I install Fitness Tools?
Copy the http config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.
Does Fitness Tools need an API key?
No required environment variable is listed on this record.
What transport does Fitness Tools use?
Fitness Tools is reached over HTTP.
When was Fitness Tools last checked?
Last checked 2026-10-16. Deterministic fitness calculators — TDEE, adaptive TDEE, body fat, 1RM, macros — with consensus.

No tool list yet. Remote servers get one after the first health check.

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