> For the complete documentation index, see [llms.txt](https://docs.tryterra.co/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tryterra.co/faq/help-topics/data-api-sdk/data-model-fields-and-units/activity-model-standardized.md).

# Are activity payloads standardised across providers?

Terra standardises all activity data into a single unified [Activity model](https://docs.tryterra.co/reference/health-and-fitness-api/data-models) regardless of provider, covering movement, heart rate, power, distance, calories and intensity-level data.

Provider-specific per-activity metrics (for example, specialised yoga data) are **normalised into this schema** rather than exposed separately. The activity type is identified via the metadata `type` field using the `ActivityType` enum.