MusclesWorked MCP server

This is a small helper that connects your AI to a big library of exercises and the muscles they train. It knows 856 exercises and 65 muscles, including which ones do the main work and which ones help out. It is handy if you plan your own workouts or write training plans for other people.

What this MCP server does

You ask your AI something like which muscles the bench press works. Your AI passes that question to this helper, and the helper asks musclesworked.com. The site sends back the list of muscles, split into the main ones, the helpers, and the small stabilizers. Your AI then explains it all to you in normal words. You can also hand it a whole workout and it will point out what you are missing.

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What you can do with it

• Look up the muscles an exercise works
• Find exercises for a specific muscle, with filters like bodyweight only
• Analyze a workout for coverage, gaps, and imbalances
• Find alternative exercises ranked by how similar they are
• Search exercises by name to find the right one
• Search muscles by name when you are not sure what it is called

Try asking your AI

• “What muscles does the barbell bench press work?”
• “Find bodyweight exercises for my chest”
• “Analyze my push day: bench press, overhead press, tricep pushdown, lateral raise”
• “What are some alternatives to barbell squats?”

What it gives back to you

You get answers in plain text in the chat. For a single exercise, that is a list of muscles grouped into main, secondary, and stabilizer. For a workout, you get a short report on what is covered and what is missing. For alternatives, you get a ranked list of other exercises with how much they overlap.

Before you start

Who it's for

People who plan their own training, personal trainers, and anyone who writes workout programs and wants a quick check on muscle coverage.