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Pitch

The agentic workout app.

MCP-native and open-source. Bring your own agent — your program lands in the app, you lift. (Stop being the brain. Become the body.)

Demo

Discover capabilities

"What can I do with GymLogic?"

Analyze your training

"Analyze my last month…"

Demo

Demo with Claude on iOS — works with any MCP client.

Features

Built for serious lifters.

AI generates the program. The triple progression engine calls your next load. Strength Balance flags weak muscle chains. Drop in Reps-in-Reserve, hit a between-set rest timer, swap programs when life shifts — every session lands in a GitHub-style heatmap with PRs and tiered achievements. 300+ curated exercises, each with form notes and a video demo. Installs as a PWA, works offline when the basement gym kills your signal.

Quick Workout AI modal with rich coach-style reasoning over the generated session.

AI program generation

One LLM call writes a multi-day program — split + exercises. Deterministic code handles volume.

In-session view with the 'Poids en hausse +2.5 kg' progression coach popover.

Triple progression engine

Range-based suggestions: add reps, add weight, hold, or flag a plateau. Pure function, fully tested.

GymLogic Strength Balance screen showing a score gauge, body-map heatmap, and analysis.

Strength Balance

Volume distribution across muscle groups, body-map heatmap, actionable rebalancing.

Achievement detail with a metallic AI-generated badge and rank ladder.

Tiered achievements

Bronze → Diamond ladder, real-time unlocks, AI-generated badge art. Reward progression, not collection.

Exercise library with category filters, equipment chips, and difficulty badges.

300+ exercises, all curated

No duplicates, no junk. Every one with detailed instructions and a YouTube demo.

History page with sessions, sets, PRs stats and a 100-day training heatmap.

History calendar + heatmap

Sessions by day, monthly summary, GitHub-style training heatmap. Single typed Supabase RPC.

How it's built

Agentic ≠ vibe-coded. Receipts below.

React + Vite + TypeScript on the SPA, Supabase Postgres with OAuth and row-level security for data and auth, an MCP server bridging your agent of choice, Astro + Tailwind v4 for this mini-site. ~1,500 unit and end-to-end tests gate every merge. Modern stack, agent-driven — every line earns its place.

MCP-native, BYOA

Bring your own MCP client — Claude, Cursor, ChatGPT, or whatever ships next.

Real auth, real data isolation

OAuth + Postgres row-level security. No demo-quality auth shortcuts.

Open-source, top to bottom

MIT license. Web app, mini-site, MCP server — all on GitHub.

Built in the open

Every feature: Epic Brief → Tech Plan → tickets → PR. Trail in /docs.

Agentic engineering, with receipts

Stress-tested specs, sliced tickets, red/green TDD, reviewed PRs. ~1,500 tests as receipts.