> 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/introduction/readme.md).

# What is Terra API?

Terra is the **Health OS for connected health data**.

We give developers one platform to access, standardise, and act on data from the entire health and wearable ecosystem, from fitness trackers and smartwatches to medical devices and lab diagnostics, without building or maintaining a single integration.

## Why Terra?

### The problem we solve

Health data is fragmented. Every device, platform, and lab (like Garmin, Fitbit, Apple Health, Oura, and hundreds more) has its own API, data format, and authentication method.

### Our solution

Terra is the layer that sits between your application and that fragmentation. We handle the **infrastructure**:

* Integrating with hundreds of providers.
* Normalising diverse data formats into one schema.
* Managing different authentication methods.

So you can focus on **building the future of health**.

***

## Terra products

Terra is built around the **Unified API**, our flagship product, with a suite of specialised products for real-time streaming, team performance, lab diagnostics, and user engagement. Each links to its own documentation section for a deeper dive.

### Start here

The **Unified API** integrates 500+ health data sources (including Oura, Garmin, Withings, and more) and standardises access to varied data such as activity, sleep, heart rate, and readiness.

<table data-card-size="large" data-view="cards"><thead><tr><th></th><th></th><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th><th data-hidden data-card-cover data-type="files"></th></tr></thead><tbody><tr><td><strong>Unified API</strong></td><td><strong>What it is:</strong> Access rich current and historical user health data like activity, sleep, and workouts.</td><td><strong>Use for:</strong> Comprehensive wellness insights, user trend analysis.</td><td><em>Supports: Garmin, Fitbit, Oura, Apple Health, Google Fit, and 500+ more.</em></td><td><a href="/pages/qbVlof1gkimTh2hlNhHi">/pages/qbVlof1gkimTh2hlNhHi</a></td><td><a href="/files/OA6ebOIMvjybLZB2Z22R">/files/OA6ebOIMvjybLZB2Z22R</a></td></tr></tbody></table>

### Explore the platform

<table data-view="cards"><thead><tr><th></th><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><strong>Streaming API</strong></td><td><strong>What it is:</strong> Get live, real-time raw sensor data such as heart rate and distance from specific BLE &#x26; ANT+ devices to your websocket listener.</td><td><strong>Use for:</strong> Live workout feedback, real-time monitoring, interactive experiences.</td><td><a href="/pages/ZMFBA4vB0mGf8EyPns0Q">/pages/ZMFBA4vB0mGf8EyPns0Q</a></td></tr><tr><td><strong>Teams API [BETA]</strong></td><td><strong>What it is:</strong> Aggregate and analyse data for groups or teams across matches and individual athlete tests.</td><td><strong>Use for:</strong> Athlete performance tracking, team wellness dashboards.</td><td><a href="/pages/R9oaJl5IDE0h5gGDhQjZ">/pages/R9oaJl5IDE0h5gGDhQjZ</a></td></tr><tr><td><strong>Lab Reports</strong></td><td><strong>What it is:</strong> Convert lab report PDFs into structured, standardised biomarker data.</td><td><strong>Use for:</strong> Diagnostics, blood biomarker tracking, health assessments.</td><td><a href="/pages/aW1anNgx114LO2OUExsT">/pages/aW1anNgx114LO2OUExsT</a></td></tr><tr><td><strong>Health Scores</strong></td><td><strong>What it is:</strong> Embed adaptive health and fitness scores computed from connected user data.</td><td><strong>Use for:</strong> Engagement, personalised insights, in-app scoring.</td><td><a href="/pages/RHQKaA5cuMyFsmKGWjW6">/pages/RHQKaA5cuMyFsmKGWjW6</a></td></tr><tr><td><strong>Planned Workouts API [PRE-RELEASE]</strong></td><td><strong>What it is:</strong> Push structured, planned workouts to users' devices and training platforms.</td><td><strong>Use for:</strong> Coaching apps, training plans, guided sessions.</td><td><a href="/pages/yiw2pwEE03hqah6IhAH2">/pages/yiw2pwEE03hqah6IhAH2</a></td></tr><tr><td><strong>Routes API [PRE-RELEASE]</strong></td><td><strong>What it is:</strong> Access GPS routes and course data from connected activities and providers.</td><td><strong>Use for:</strong> Mapping, route analysis, course planning.</td><td><a href="/pages/almQOFqJHSHdikOfnmnV">/pages/almQOFqJHSHdikOfnmnV</a></td></tr></tbody></table>

## Ready to build the future?

You've got the overview. Now, you can:

* Proceed to [**Account setup & API keys**](/introduction/account-setup-and-api-keys.md) to get your credentials.
* We suggest you start with the **Unified API** and connecting one user.
* We also recommend exploring our [**Core Concepts**](/introduction/core-concepts.md) to understand how Terra works.