Explore the API

Make your first API call in about two minutes. No app registration, no callbacks, no OAuth. Just you, an API key, and a curl.

1. Sign up

app.sweatstack.no/register. Free, no credit card.

2. Connect a wearable so you have data to query

Link Garmin or Intervals.icu at Settings → Sharing. Activities start syncing immediately. A typical user's full history lands within a minute or two. Skip this step if you already have data in SweatStack.

3. Grab an API key

Settings → API. Treat it like a password.

export SWEATSTACK_API_KEY="sk_..."

4. Make your first call

cURLPython

curl https://app.sweatstack.no/api/v1/activities/latest \
  -H "Authorization: Bearer $SWEATSTACK_API_KEY"

You get back a JSON object describing your most recent activity:

{
  "id": "01HF...",
  "sport": "cycling",
  "start": "2026-05-17T08:14:22+02:00",
  "summary": {
    "duration": 5421,
    "distance": 42137.4,
    "...": "..."
  }
}

uv add sweatstack

import sweatstack

activity = sweatstack.get_latest_activity()
print(activity)

Run it:

uv run python app.py

You see your most recent activity printed as a Python object.

That's it. You're on the API.

What's next

• Browse every endpoint. The API reference lists every route with its parameters and response schema. To run requests live against your account in the browser, use the API playground.
• Compute something with the data. See Activities, Dailies, Tests, and Metabolic profile. The Python SDK pairs well with notebooks via the Jupyter helper.
• Let other people sign in to your app. Move on to Build an app for the full OAuth flow with FastAPI, Streamlit, or any HTTP client.