Sommeil

Documentation · ChatGPT & MCP

Bring Sommeil into ChatGPT.

Connect Sommeil as a private ChatGPT developer-mode plugin powered by MCP. Ask questions about your sleep data without an OpenAI API key.
  1. 01

    Enable Developer mode

    In ChatGPT, open Settings → Security and login, then turn on Developer mode. If the option is unavailable, your workspace administrator may need to allow it.

  2. 02

    Create the Sommeil plugin

    Open Settings → Plugins, select the plus button, and create a developer-mode app with these details:

    Name
    Sommeil Sleep
    Description
    Private, read-only sleep summaries, patterns, and next-sleep estimates.
    MCP server URL
    https://sleep.arbibe.dev/mcp
  3. 03

    Approve read-only access

    ChatGPT will open Sommeil’s Google sign-in and consent screen. Use the same Google account you use for Sommeil and approve the sleep:read permission.

  4. 04

    Ask about sleep

    Start a new chat, choose Sommeil Sleep from the composer’s plugin list, and try:

    “Using Sommeil, explain the last seven days and estimate the next sleep window.”

Private connectionOAuth protects access, and every exposed tool is read-only.

No API keyChatGPT supplies the model through your ChatGPT account.

You stay in controlRemove the plugin from ChatGPT whenever you want.

OpenAI’s ChatGPT connection guide

What the plugin can access

Sommeil exposes three purpose-built, read-only tools:

  • get_sleep_summary returns 1–30 days of daily totals, averages, nap counts, patterns, and prediction confidence.
  • get_next_sleep_prediction returns the current sleep state and a personalized next-sleep estimate.
  • get_daily_briefing returns an evidence-bound daily briefing with a safety caution.

What stays private

Tool responses exclude names, email addresses, caregiver addresses, notes, exact birth dates, session IDs, and raw session records. ChatGPT receives a result only when you add the Sommeil plugin to a conversation and ask it to use a tool.

Disconnect or reconnect

Remove Sommeil from ChatGPT’s Plugins settings to disconnect it. If tools change after an update, open the plugin in Settings → Plugins, choose Refresh, and start a new conversation.

Troubleshooting

  • Developer mode is missing: your ChatGPT workspace may not allow developer-mode apps.
  • Access denied: sign in with the Google account that owns or has caregiver access to the Sommeil profile.
  • Tools do not appear: refresh the plugin metadata, then open a new chat and select Sommeil from the composer.

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