Exercise-to-muscle mapping: 856 exercises, 65 muscles, workout analysis & alternatives.
Connect Runs on your machine
claude mcp add musclesworked -e MUSCLESWORKED_API_KEY=<MUSCLESWORKED_API_KEY> -- npx -y [email protected]
{
"mcpServers": {
"musclesworked": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"MUSCLESWORKED_API_KEY": "<MUSCLESWORKED_API_KEY>"
}
}
}
}
{
"mcpServers": {
"musclesworked": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"MUSCLESWORKED_API_KEY": "<MUSCLESWORKED_API_KEY>"
}
}
}
}
{
"servers": {
"musclesworked": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"MUSCLESWORKED_API_KEY": "<MUSCLESWORKED_API_KEY>"
}
}
}
}
Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
MUSCLESWORKED_API_KEYRequired, secret | Your MusclesWorked API key (get one at musclesworked.com/dashboard) |
Details
| Package | [email protected] (NPM, stdio) |
| First published | 17 Feb 2026 |
| Last updated | 17 Feb 2026 |
| Registry name | io.github.csjoblom/musclesworked |
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