MusclesWorked runs on your own machine — the client starts it, so there is no endpoint to ping. 24 installs a week from npm. Last commit 17 Feb 2026.
Exercise-to-muscle mapping: 856 exercises, 65 muscles, workout analysis & alternatives.
Nothing serious here today
Today is the operative word: we check MusclesWorked every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Connect this server
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add musclesworked -- npx -y musclesworked-mcp{
"mcpServers": {
"musclesworked": {
"args": [
"-y",
"musclesworked-mcp"
],
"command": "npx"
}
}
}[mcp_servers.musclesworked]
command = "npx"
args = ["-y", "musclesworked-mcp"]{
"mcpServers": {
"musclesworked": {
"args": [
"-y",
"musclesworked-mcp"
],
"command": "npx"
}
}
}{
"mcpServers": {
"musclesworked": {
"args": [
"-y",
"musclesworked-mcp"
],
"command": "npx"
}
}
}This one needs environment variables set before it will start:
MUSCLESWORKED_API_KEY (Your MusclesWorked API key (get one at musclesworked.com/dashboard)).
The author declared them in the registry entry; get the values from the project itself.
Alternatives to MusclesWorked
same job, measured the same wayExercises, muscles, and workout data from the open wger database. No key required.
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Search 1,492 filmed exercises by muscle, equipment, pattern and joints to avoid; get substitutes.
Symbol-level npm dependency analysis: scan verdicts, native alternatives, migration prompts.
MusclesWorked — questions
Answers built from our own checks of this server.