Core exercise data via API
exerciseapi.dev serves 306 core exercises out of 2198 total, as structured JSON over one REST API and a first-party MCP server. Each record carries muscles worked, equipment, mechanic, difficulty, and step-by-step instructions.
Sample core exercises
- 3/4 Sit-Uprectus abdominis · body only · beginner
- 360 Degree Jumpsrectus abdominis, obliques external · body only · advanced
- Ab Crunch Machinerectus abdominis · machine · intermediate
- Ab Rollerrectus abdominis · other · intermediate
- Advanced Kettlebell Windmillrectus abdominis, obliques internal, obliques external · kettlebell · intermediate
- Air Bikerectus abdominis, obliques internal, obliques external · body only · beginner
Fetch core exercises
cURL
curl -H "X-API-Key: YOUR_API_KEY" \
"https://api.exerciseapi.dev/v1/exercises?muscle=core&limit=20"Use it from your AI coding agent
Add the MCP server to Claude Code or Cursor, then ask your agent for exercises directly. Paste the snippet into your MCP config, or paste it into the agent and ask it to install the server.
MCP config
{
"mcpServers": {
"exerciseapi": {
"command": "npx",
"args": ["-y", "@exerciseapi/mcp-server"],
"env": {
"EXERCISEAPI_KEY": "YOUR_API_KEY"
}
}
}
}Building a workout or fitness app? Get a free API key and start with the core catalog.