JustGains in your terminal.

Claude Code, Codex, Cursor, VS Code and any client that speaks MCP.

Connect it.

Address: https://justgains.com/connect/mcp
Speaks: MCP over Streamable HTTP, or a local stdio server
Sign-in: The first request answers with a standard OAuth challenge, so the client finds sign-in on its own. PKCE required.
Shows up as: “Claude Code (MCP)” in your JustGains devices. Revoke it any time.

Claude Code

$ claude mcp add --transport http justgains https://justgains.com/connect/mcp

Codex

$ codex mcp add justgains --url https://justgains.com/connect/mcp

Cursor · ~/.cursor/mcp.json

$ { "mcpServers": { "justgains": { "url": "https://justgains.com/connect/mcp" } } }

VS Code · .vscode/mcp.json

$ { "servers": { "justgains": { "type": "http", "url": "https://justgains.com/connect/mcp" } } }

“What did I lift last week, and which muscles did I barely train?”
get_my_workout_logs(reads)get_my_recovery_analytics(reads)
“Has my bench press actually stalled? Look at the last two months.”
get_my_exercise_history(reads)
“Log my weight: 182.4 lb.”
log_my_weight(writes)
“Pull my last 12 weeks of squat sessions and write a CSV with date, top set in lb and estimated 1RM.”Example
get_my_exercise_history(reads)