Connect GymLogic to Le Chat

Prerequisites

A GymLogic account with at least one logged workout
A Le Chat account (the free tier works)

Setup — recommended path: Personal Access Token (API Key)

Le Chat’s Custom MCP Connector accepts a static API Key, which is the simplest and steadiest option here. You generate a long-lived Personal Access Token on GymLogic, paste it into Le Chat once, and you’re done — no OAuth round-trip, no sessions to re-auth.

Step 1 — Create a Personal Access Token

Go to gymlogic.me/account/api-tokens
Click Create token
Name it (Le Chat) and pick a lifetime — the default is 30 days; choose Never only if you understand the trade-off
Click Create
Copy it immediately. It starts with glp_ and is shown once. Lose it and you revoke + recreate.

Step 2 — Create the Le Chat Connector

Go to chat.mistral.ai and sign in
Click Intelligence in the left sidebar, then Connectors
Click Add Connector (top-right)
Switch to the Custom MCP Connector tab
Fill in:
- Connector Name: gymlogic
- Connector Server: https://mcp.gymlogic.me/functions/v1/mcp
- Authentication Method: API Key
- API Key: paste your glp_… token from step 1
Click Connect — Le Chat probes the server and saves the connector

Step 3 — Create an Agent with the Connector

Connectors don’t work in regular chats. You need an Agent:

Go to Intelligence → Agents
Click Create Agent
Name it (e.g. “Coach GymLogic”)
In the Connectors section, toggle on the gymlogic connector
Optional system instructions: “You are a personal training coach. Use the gymlogic tools for history, stats, catalog, and upcoming workouts; use create_program only after a clear dry-run preview and explicit user consent to apply.”
Click Save

Step 4 — Start a conversation

Go back to Intelligence → Agents
Open your Agent, then New Chat
Ask something — Le Chat discovers and calls the GymLogic tools on its own

Rotating or revoking the token

Revoke: any time at gymlogic.me/account/api-tokens. It’s immediate (the token is hard-deleted) — Le Chat starts getting 401 Unauthorized on the next tool call.
Rotate: create a new token, paste it into the connector (edit in place if Le Chat allows, otherwise delete + recreate), then revoke the old one.

Alternative path: OAuth 2.1

If you’d rather not keep a long-lived token in Le Chat, the connector supports OAuth too. Fair warning: Mistral’s OAuth client registration against GymLogic has been less stable than other MCP clients — see the troubleshooting row below before you commit to it.

In step 2, pick OAuth 2.1 instead of API Key and leave the API Key field empty.
Click Connect. Le Chat opens the GymLogic consent screen.
If you’re not signed in to GymLogic, you’ll hit the login page first — sign in with Google.
Review the requested permissions and click Approve.
You’re redirected back to Le Chat — the connector shows as connected.

The Agent + chat steps are identical.

Available tools

Tool	What it does
`search_exercises`	Search the exercise catalog by name (FR/EN), muscle group, equipment, or difficulty
`resolve_exercises`	Resolve a batch of exercise names (up to 30) to catalog UUIDs in one call — bundles `weight_convention`, `measurement_type`, `default_duration_seconds`
`get_exercise_details`	Full exercise info: instructions, muscles, equipment, media
`get_workout_history`	Your past sessions with sets, weights, and PRs
`get_training_stats`	Volume by muscle group, personal records, session frequency
`get_upcoming_workouts`	Your programmed training days and exercises
`list_programs`	List all your training programs (active, drafts, optionally archived) with id, name, day count, creation date, active-cycle flag
`get_program_details`	Full structure of one program by UUID — days, exercises, sets/reps/weights/rest. Works on any program (active/draft/archived)
`create_program`	Create / replace your active program (multi-day). Default `dry_run: true`; `dry_run: false` saves and activates
`create_workout_day`	Log a single ad-hoc session without touching the active program. `dry_run` defaults to `true`
`update_program`	Edit an existing program in place by `program_id` — preserves logged history. `dry_run` defaults to `true`; removing days also needs `confirm: true`

Eleven tools — eight reads, three writes.

Example prompts

“What did I train this week?”
“Search for chest exercises with dumbbells”
“How’s my training volume this month?”
“What’s my next workout?”
“Tell me about the Kroc Row”
“Based on my stats, propose a 3-day full-body refresh and save it with create_program (show dry run first)“

Troubleshooting

Problem	Fix
`401 Unauthorized` from tool calls (API Key path)	Token revoked or expired. Mint a new PAT at `gymlogic.me/account/api-tokens` and update the connector
OAuth consent fails with `validation_failed: authorization request cannot be processed`	Mistral’s stored OAuth client registration on the GymLogic auth server may be stale. Simplest fix: switch the connector to API Key. To insist on OAuth, ask an admin to clean up the dynamic client registrations server-side, then re-add the connector
OAuth consent page doesn’t load	Sign in to GymLogic at `www.gymlogic.me` first, then retry
`unauthorized request origin`	Your browser must be on `www.gymlogic.me` (not `gymlogic.me` without www). The Supabase Site URL must match
Tools not appearing in chat	You must chat via an Agent with the gymlogic Connector enabled, not a regular chat
Agent doesn’t call tools	Make sure the Connector toggle is on in the Agent config. Try an explicit prompt: “Use gymlogic to show my last 5 workouts”

Headless / scripted access (outside Le Chat)

The same PAT works as a Bearer token for direct HTTP calls — handy for CI jobs, custom agents, or curl debugging:

curl -X POST https://mcp.gymlogic.me/functions/v1/mcp \
  -H "Authorization: Bearer <YOUR_PAT>" \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'

Use the same token in Le Chat and in scripts, or mint separate tokens per use-case for cleaner audit and revocation.

Use your training data inside Le Chat