JustGains in Claude.
The same connector on claude.ai, desktop and mobile. Cards follow Claude's theme.
“Connectors are available on the Claude Free plan.”
From the JustGains setup guideConnect it.
- Address
https://justgains.com/mcp- Speaks
- MCP over Streamable HTTP, cards as MCP Apps
- Sign-in
- OAuth 2.1 with dynamic registration. Works on the free plan.
- Shows up as
- “Claude (MCP)” in your JustGains devices. Revoke it any time.
Or add it by hand: Settings › Connectors › Add custom connector
https://justgains.com/mcp
Try these.
“Build me a 10-minute core burner. No equipment.”
generate_workout(writes)show_workout(reads)Five moves, ten minutes, saved to your account.
“Create a push day: bench press 4x8 at 135 lb, incline dumbbell press 3x10, lateral raises 3x15.”
search_exercises(reads)create_workout(writes)“Write me a 4-week beginner strength program and enroll me in it.”
create_workout_program(writes)set_my_program_engagement(writes)“Plan me an easy 3-mile running loop starting from the town square and save it as a route.”
create_route(writes)A 3-mile loop on real paths, saved to your Routes.
“Why is my deadlift stuck at 315 lb? Look at the last two months and give me a three-week fix.”Example
get_my_exercise_history(reads)get_my_top_exercises(reads)