Montis setup

Start using Montis in a few simple steps.

Connect your Intervals.icu account, choose the interface that suits how you work, and start turning your training data into useful coaching decisions.

Open App Hub Choose an interface

Montis uses your Intervals.icu account as the shared athlete identity. The Montis App, ChatGPT and Claude use different connection flows but resolve to the same athlete data where required.

Intervals.icu is the source of truth Secure OAuth connection No Intervals password shared with Montis One athlete identity

Choose your experience

One intelligence layer. Three ways to use it.

You do not need to configure every interface. Pick the one that best suits how you want to use Montis. You can add the others later.

Complete experience

Montis App

The full browser experience with dashboards, reports, planning, activity analysis, workout tools and optional Gemini AI.

Best place to explore Montis
Works without an AI key for standard tools
Installable as a web app

Set up Montis App →

Conversation

ChatGPT

Use Montis through natural-language coaching conversations, reports and training decisions directly inside ChatGPT.

Guided conversational experience
Reports and activity analysis
Calendar and planning workflows

Set up ChatGPT →

Direct tools

Claude + MCP

Connect Claude directly to Montis through Model Context Protocol and make Montis tools available in Claude conversations.

Standards-based MCP connection
Direct structured tool access
Tools available across Claude chats

Set up Claude →

One shared connection

Connect once. Use Montis where you want.

Your athlete data remains in Intervals.icu. Montis securely resolves your authorised athlete account and exposes the appropriate tools to the interface you choose.

Intervals.icu Your authoritative training record

Montis.icu Secure identity, analysis and coaching layer

Your interface Montis App · ChatGPT · Claude MCP

New to Intervals.icu?

Get your training data ready for Montis.

If you are setting up Intervals.icu for the first time, follow this guide before connecting Montis.

Loading Intervals.icu setup guide…

Complete experience

Set up the Montis App

The Montis App provides athlete dashboards, reports, calendar and workout tools, activity analysis and optional Gemini-powered AI coaching in one browser application.

Open Montis App ↗

Open the Montis App

Open the app in Chrome, Edge, Brave, Safari or another modern browser.

Select Connect Intervals to begin.

Connect the Montis App to Intervals.icu — Start by connecting your Intervals.icu athlete account.

Authorise Intervals.icu

Approve the Intervals.icu authorisation request without removing any requested permissions.

This allows Montis to read your athlete data and, where you explicitly request it, create or update calendar events.

Authorise Intervals.icu for Montis — Approve the requested Intervals.icu permissions.

Open your athlete dashboard

After authorisation, return to the Montis App.

Your athlete dashboard and standard Montis tools are available without entering a Gemini API key.

Montis athlete dashboard — Your connected athlete data is now available to Montis.

Optional AI access

Choose how Gemini AI usage is provided

The athlete dashboard and standard Montis tools do not require a Gemini API key. An AI access method is only required for Gemini-powered coaching and report interpretation.

Montis Subscription

A Montis subscription includes managed Gemini AI usage together with subscriber features.

Managed Gemini allowance
Lower-latency API access
Coached-athlete tools
Subscriber support

Subscribers do not need to maintain a personal Gemini key while using their included Montis allowance.

Purchase subscription →

Your Gemini Free Tier key

You can use your own Google Gemini Free Tier API key.

Availability and quotas are controlled by Google and may change.

Open Google AI Studio ↗

Your Gemini PAYG key

You can also use a Gemini API key connected to your own Google paid billing account.

Usage, quota and billing remain directly between you and Google.

View Gemini pricing ↗

Fallback: If your Montis subscriber allowance is exhausted, you can switch back to your own Free Tier or PAYG Gemini API key in the app.

Conversational coaching

Set up Montis in ChatGPT

Open the Montis.icu Coach in ChatGPT, sign in to Montis and authorise your Intervals.icu athlete account.

Open in ChatGPT ↗

Open Montis.icu Coach

For the first connection, using ChatGPT in a web browser is the simplest route.

Open Montis and ask:

run a weekly report

ChatGPT will show a Montis sign-in prompt when the first Montis action is called.

Montis sign-in prompt in ChatGPT — Select Sign in to start the Montis connection flow.

Connect Intervals.icu

If your shared Intervals.icu connection is missing or expired, Montis will ask you to connect it.

Select OK — Connect Intervals.icu and approve the requested permissions.

Authorise Montis access to Intervals.icu — Keep the requested permissions enabled.

Return to ChatGPT

After authorisation, you are redirected back to ChatGPT and the Montis connection completes.

You should see confirmation that the connection succeeded.

Montis successfully connected in ChatGPT — Once connected, ChatGPT can call Montis actions for your athlete.

Run your first report

When ChatGPT asks for permission to use the Montis action, you can select Always allow if you do not want the same tool confirmation on every request.

run a weekly report

Allow Montis actions in ChatGPT — ChatGPT can now continue with the requested Montis report.

Direct tool access

Set up Claude + MCP

Claude connects directly to Montis through Model Context Protocol. Once connected, Montis tools can be used from normal Claude conversations.

Add the Montis MCP server

Open Claude connector settings and add the Montis MCP endpoint.

{
  "url": "https://montis.icu/mcp",
  "client_id": "intervals-mcp"
}

Add Montis MCP connector in Claude — Add Montis as an MCP connection in Claude.

Authorise Intervals.icu

Claude will start the Montis OAuth flow.

Approve your Intervals.icu athlete connection when prompted.

Authorise Intervals.icu for Claude MCP — The same athlete identity is used across Montis interfaces.

Confirm Montis tools are available

Once connected, Claude can discover and call the Montis MCP tools directly.

Montis tools available inside Claude — Montis tools become available through the MCP connection.

Start a Claude conversation

Unlike a dedicated ChatGPT GPT, the Montis connector exposes the tools to Claude conversations where the connection is available.

run weekly report
run wellness report
get activity for yesterday

You're connected

Now put your training data to work.

Start with a report, then use Montis to question the findings, understand what is changing and decide what should happen next.

Run a weekly report How is my training progressing? What should I focus on next week?

Open Montis App ↗ Open App Hub

Only if something goes wrong

Troubleshooting

Most users should not need this section. Use these checks if your connection does not complete or Montis cannot access your athlete data.

ChatGPT — which model should I use?

A ChatGPT subscription using a Thinking model is recommended for the most reliable Montis experience.

Montis can also be used with other available ChatGPT models, but action-heavy workflows depend on ChatGPT successfully invoking the Montis tool.

The model controls the ChatGPT interaction. The underlying calculations returned by Montis remain governed by the Montis engine when the tool call succeeds.

ChatGPT — Montis does not connect or returns an upstream error

Start a completely new Montis ChatGPT conversation.
Run check connection.
Then run run weekly report.
If it still fails, refresh the ChatGPT browser tab and try a fresh conversation.
Try ChatGPT in a normal browser if you were using a mobile or desktop app.
Try an incognito/private browser window.
Temporarily disable VPN, proxy, Private Relay, secure DNS or web filtering if applicable.
Try another network such as mobile data or a hotspot.

You can also check Montis service status .

Claude — the Montis MCP tools are missing or stale

Open Claude Settings → Connections.
Find the Montis connector.
Refresh the tool list.
If necessary, disconnect and reconnect Montis to trigger a fresh OAuth exchange.
Start a new Claude conversation. Tool schemas are normally resolved at conversation start.

Athlete profile missing or account not connected

This normally means that the Intervals.icu OAuth connection was not completed or needs to be renewed.

Restart the connection flow from your chosen interface.
Select the Montis sign-in/connect option.
Approve the Intervals.icu authorisation request.
Run check connection where available.
Run your report again.

STRAVA activities are not available via the API

If activities exist only through Strava, Intervals.icu may not expose the training metrics Montis requires through its API.

Connect a direct activity source such as:

Garmin
Wahoo
Zwift
TrainerRoad
Direct FIT file uploads

See the Intervals.icu explanation for more information.

What should I send if I still need support?

The interface being used: Montis App, ChatGPT or Claude.
The exact request that failed.
The visible error message.
The approximate date and time.
Whether a new conversation changed the result.
Whether another browser or network worked.

Better data, better context

Check your training data.

Montis can work with incomplete datasets, but the available evidence determines how much useful training context can be resolved.

Recommended data

Montis works best when your Intervals.icu account contains:

Activities with time, distance and training load
A direct recording device or training platform
Heart rate and/or power where available
Optional wellness data for recovery analysis

Run a data quality check

If a report looks empty, incomplete or incorrect, ask Montis:

run data quality report

The check reviews athlete connection, activity availability, training load, heart rate, power and wellness coverage.

Support

Need more help?

Use the Montis community and development channels for setup help, discussion or technical issues.

Intervals.icu community

Ask questions, share feedback or follow the Montis discussion.

Open forum discussion ↗

GitHub

Review development, report defects or contribute to Montis.

Open GitHub repository ↗