barbell-tools

CoachSync MCP provides barbell strength training tools for AI assistants.

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What it can do

  • Warmup Calculator: Calculate a barbell warmup ramp for any lift. Returns a structured set of warmup sets leading up to the work weight, with decreasing reps as weight increases. Based on standard barb
  • Plate Loader: Calculate which plates to load on each side of the barbell to reach a target weight. Supports custom bar weights and custom plate inventories for home gyms. Powered by CoachSync.io.
  • Novice Lp Generator: Generate a structured 4-week novice linear progression program for a new or early-intermediate barbell trainee. Based on the Starting Strength model: squat every session, alternat

What data it sees

Do you need an account

No: the server works without sign-in

CoachSync MCP provides barbell strength training tools for AI assistants. Built for coaches, lifters, and fitness apps that want to add structured programming to their AI workflows.

No API key required — connect and start using.

Tools

Warmup Calculator

Generate a Starting Strength-style warmup ramp for any barbell lift. Produces structured warmup sets with decreasing reps as weight increases, starting from the empty bar. Supports custom bar weights (women's bar, training bar) and rounding increments. Works for squat, bench, press, deadlift, and power clean.

Plate Loader

Calculate which plates to load on each side of the barbell to hit a target weight. Uses a greedy algorithm with standard plate denominations, or supply your own inventory for home gym setups. Supports both lb and kg.

Novice LP Generator

Build a complete 4-week novice linear progression program based on the Starting Strength model. Takes a lifter profile (sex, bodyweight, age, training frequency) and returns a week-by-week program with squat every session, alternating press/bench, deadlift progressing to power cleans, and session-by-session weight increases. Includes coaching notes tailored to the lifter (age-adjusted recovery tips, microplate recommendations).

Connect

https://mcp.coachsync.io/mcp

Transport: Streamable HTTP. Compatible with Claude Desktop, Cursor, Windsurf, and any MCP client.

How to connect

How to connect barbell-tools to Claude

The server address to paste into Claude settings:

https://barbell-tools--coachsync.run.tools

  1. Open Claude (claude.ai or the desktop app).
  2. Go to Settings → Connectors.
  3. Click Add custom connector.
  4. Paste the server address copied below into Remote MCP server URL and click Add.
  5. In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect barbell-tools to ChatGPT

The server address to paste into ChatGPT settings:

https://barbell-tools--coachsync.run.tools

  1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
  2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
  3. Open Settings → Connectors and click Create.
  4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
  5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
  6. In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect barbell-tools to Cursor

The server address to paste into Cursor settings:

https://barbell-tools--coachsync.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

  1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
  2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
  3. Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (3)

Raw names from tools/list. Only developers need these.

warmup_calculatorCalculate a barbell warmup ramp for any lift. Returns a structured set of warmup sets leading up to the work weight, with decreasing reps as weight increases. Based on standard barbell warmup methodology used in Starting Strength coaching. Powered by CoachSync.io.
plate_loaderCalculate which plates to load on each side of the barbell to reach a target weight. Supports custom bar weights and custom plate inventories for home gyms. Powered by CoachSync.io.
novice_lp_generatorGenerate a structured 4-week novice linear progression program for a new or early-intermediate barbell trainee. Based on the Starting Strength model: squat every session, alternating press/bench, deadlift progressing to power cleans. Takes lifter profile (sex, bodyweight, age, training days) and optional starting weights. Returns a week-by-week program with progression scheme and coaching notes. Powered by CoachSync.io.