Terra API
Terra API provides a unified health data API connecting applications to 500+ wearables, sensors, and health platforms through one integration. It serves health app developers, clinical research teams, insurance firms, and corporate wellness platforms with HIPAA-compliant, SOC 2 certified infrastructure.
- Company typePrivate
- Founded2020
- HeadquartersLondon, United Kingdom
- Headcount11–50
- GTM typeB2B
- OfferingSoftware
What Terra API does
Terra API is a health and fitness data infrastructure company founded in 2020 by Kyriakos Eleftheriou, headquartered in Dover, Delaware with a UK operating subsidiary (Terra Enabling Developers Ltd.) and team presence in San Francisco, London, and Cyprus. The company operates a unified API that connects applications to 500+ wearables, health platforms, CGM devices, medical devices, and sensors — including Garmin, Apple Health, Fitbit, WHOOP, Oura, Strava, Dexcom, FreeStyle Libre, and Withings — replacing dozens of separate provider integrations with a single OAuth and webhook-based data pipeline that normalizes 5,000+ health metrics into a consistent schema. The platform has processed 17.5 billion health data events in a single year and serves more than 1,000 developers.
The product portfolio spans the core Terra API (REST/webhook delivery), Mobile SDKs (JavaScript, Python, iOS, Android), an embeddable Connection Widget for OAuth flows, a WebSocket Streaming API for real-time biometrics, a Graph API for relational queries, and add-on modules including Health Scores (recovery, strain, stress, immunity), Health Rewards, Planned Workouts, a Blood Report API, Lab Testing with on-demand phlebotomy, an AI Interface, and verticalized Enterprise and Insurance offerings. Terra holds HIPAA, GDPR, CCPA, and SOC 2 Type II certifications, with AES-256 encryption at rest and TLS 1.2+ in transit, positioning it for clinical and insurance procurement. Named customers include Levels (60K+ users), Nutrisense (150K users), Numan (650K patients), Lumen (100K users), and Strove (1.3K employees).
The business model is usage-based subscription pricing tied to active end users rather than API calls, with plans starting at $399 per month on annual billing and all data types and integrations included without per-endpoint fees. Distribution is predominantly self-serve product-led growth through dashboard.tryterra.co, supplemented by an enterprise sales motion and developer-focused content channels including the Terra Podcast and Terra Research reports. The company is venture-backed with a single disclosed $2.8 million seed round in June 2021 led by General Catalyst, Samsung Next, and NEXT VENTURES, alongside Pioneer Fund and Y Combinator (W21 batch).
Terra API firmographics
Firmographics- Name
- Terra API
- Legal name
- Terra Enabling Developers Inc.
- Website
- https://tryterra.co
- Company type
- Private
- Founded year
- 2020
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Terra API provides a unified health data API connecting applications to 500+ wearables, sensors, and health platforms through one integration. It serves health app developers, clinical research teams, insurance firms, and corporate wellness platforms with HIPAA-compliant, SOC 2 certified infrastructure.
- Ownership category
- akta.pro rank
Terra API industry classification
Industry- Product category
- Health Data API
- NAICS
- Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518210), Computer Systems Design and Related Services (54151)
- SIC
- Services-Computer Programming Services (7371), Services-Computer Programming, Data Processing, Etc. (7370)
- akta.pro primary industry
- API Management & Developer Portals for Health Data (HLACABAD)
- akta.pro secondary industry
- API Observability, Testing & Monitoring (BPAMAOAG)
Keywords
Where Terra API is headquartered
LocationHeadquarters
- HQ city
- London
- HQ country
- United Kingdom
- HQ region
- Europe
Offices2 records
Markets served
Terra API business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Personnel, Infrastructure, Marketing or Sales, Operations
Revenue model
- API Subscription: Usage-based subscription model where customers pay based on the number of active users they have. Plans include a base allowance with additional usage billed at overage rates. All data types and integrations are included with no per-endpoint fees. Supports monthly and annual billing with annual plans offering lower rates.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Usage-based | Annual | Usage-based plan starting at $399/month |
Go-to-market motion2 records
Distribution channels4 records
Marketing channels7 records
Terra API product offering
Product offeringCore offering
Terra API is a unified health and fitness data API that provides a single integration for applications to connect with 500+ wearables, health apps, medical devices, and sensors. The platform normalizes data across providers (Garmin, Fitbit, Apple Health, Oura, WHOOP, Strava, etc.) into a consistent JSON schema, handles OAuth authentication and token refresh automatically, and delivers data via webhooks with real-time WebSocket streaming. It also offers native SDKs (JavaScript, Python, iOS, Android) and an embeddable connection widget for developers building health, fitness, clinical research, insurance, and corporate wellness applications.
Product overview
Terra API is a unified health and fitness data platform that provides a comprehensive portfolio of products centered around its core Unified API, which connects apps to 500+ wearables, health apps, medical devices, and sensors through a single integration. The platform architecture consists of core products including the Terra API (REST/webhook-based data delivery), Mobile SDK (JavaScript, Python, iOS, Android), Connection Widget (OAuth authentication flow), WebSocket Streaming (real-time sensor data), and Graph API (relational data queries). Supporting modules include Health Scores (validated metrics for recovery, strain, stress, immunity), Health Rewards (gamification and incentives), Planned Workouts (exercise prescription), Lab Testing and Blood Report API (biomarker data from blood tests), AI Interface (intelligent automation), and specialized verticals for Enterprise and Insurance deployments.
Differentiator
Problem solved
Functional benefit
Products and services
- Terra API (Unified API) The core unified health and fitness data API that provides a single integration for apps to connect with 500+ wearables, health apps, medical devices, and sensors, delivering normalized data via webhook-based push architecture.
- Mobile SDK Native SDKs for mobile development including JavaScript, Python, iOS, and Android platforms that enable developers to integrate Terra's health data capabilities into mobile applications.
- Connection Widget Embeddable authentication widget that allows users to link their health devices and apps through a brandable flow that handles OAuth, token refresh, and provider-specific authentication automatically.
- WebSocket Streaming Real-time streaming API that delivers sensor data including beat-by-beat heart rate from wearable devices to applications via WebSocket connections for live biometric dashboards and continuous monitoring.
- Blood Report API API for automating blood lab report processing and integration, enabling labs to be shipped to users' doorsteps and results delivered directly into applications.
- Graph API Graph-based API for traversing and querying normalized health data relationships across users, activities, and metrics.
- Health Scores Feature that transforms raw health metrics into validated scores including recovery, strain, stress, and immunity, backed by research and adapted to individual baseline values.
- Health Rewards Gamification system that awards points for health achievements like movement and sleep, with configurable reward and streak systems that can be enabled without coding.
- Planned Workouts Workout planning and prescription feature for delivering structured exercise programs to users.
- Lab Testing Service for ordering and managing laboratory tests including on-demand phlebotomist visits and home test kit delivery for biomarkers like hormones, vitamins, cholesterol, and glucose.
- AI Interface AI-powered interface for health data processing and intelligent automation of health application workflows.
- Insurance Vertical Solution Health data integration solution tailored for insurance companies to incorporate wearable and biometric data into insurance products and rewards programs.
Quantifiable outcome
- 17.5+ billion health data events processed
- +3 more outcomes
Companies that use Terra API
Customer profileNamed customers5 records
Segments5 records
Ideal customer profiles5 records
Terra API technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration25 records
AI capability5 records
Feature15 records
Terra API partnerships and signals
Strategic signalPartnerships
13 partnerships are on record, tiered core.
- GarmincoreGarmin is one of 500+ health data providers accessible through Terra API. Terra provides an alternative to the Garmin Connect Developer Program, offering instant access to Garmin health and fitness data without requiring direct Garmin Developer Program approval.
- FitbitcoreFitbit is integrated into Terra's unified API, allowing developers to access Fitbit health and fitness data through a single integration.
- Apple HealthcoreApple Health (Apple HealthKit) is integrated into Terra's unified API, providing access to Apple Watch and iPhone health data.
- OuracoreOura Ring health data is accessible through Terra API, including sleep stages, heart rate, HRV, and body temperature data.
- WHOOPcoreWHOOP wearable data is integrated into Terra's unified API for real-time biometric monitoring.
- StravacoreStrava activity and fitness data is accessible through Terra API, including workouts, routes, and performance metrics.
- Google FitcoreGoogle Fit health data is integrated into Terra's unified API.
- Samsung HealthcoreSamsung Health data is accessible through Terra API as part of the 500+ provider ecosystem.
- WithingscoreWithings health devices and app data is integrated into Terra's unified API.
- PolarcorePolar wearable and fitness device data is accessible through Terra API.
- Eight SleepcoreEight Sleep smart mattress data including sleep stages and temperature regulation data is integrated into Terra's API.
- DexcomcoreDexcom continuous glucose monitoring (CGM) data is accessible through Terra API.
- FreeStyle LibrecoreAbbott FreeStyle Libre CGM data is integrated into Terra's unified API for glucose monitoring.
Scale indicators10 records
Recent moves6 records
Expansion highlights7 records
Terra API competitors and assessment
Company assessmentDirect peers
- Validic: Validic is a digital health platform offering a unified API to access wearable, biometric, and in-home health device data. It is the closest direct competitor to Terra, serving health systems, payers, pharma, and wellness apps with similar normalized data and integration services.
- 1upHealth: 1upHealth is a healthcare data interoperability platform focused on connecting apps to EHR and patient health data via FHIR APIs. It overlaps with Terra in providing developer-facing APIs to aggregate health data from multiple sources.
- Redox: Redox is a healthcare API integration platform connecting software vendors to health systems and EHRs. While more EHR-focused than Terra, both operate horizontal developer APIs that abstract away complex healthcare data integrations for application builders.
- Particle Health: Particle Health operates a healthcare data API providing access to clinical records via a single integration across a network of providers. It is a direct competitor to Terra in the broader health data interoperability and aggregation category.
- Human API: Human API (formerly Humanco) provides a unified API to access patient-consented health data from wearables, EHRs, and labs. It is one of the conceptual predecessors to Terra in the consumer health data aggregation space.
Emerging players
- Thryve: Thryve is a European health data API platform that unifies access to wearables and health apps for digital health developers. It is a comparable emerging player in the same unified wearable/health data integration category as Terra, with regional European focus.
Broad incumbents
- Datavant: Datavant operates a connectivity layer for health data exchange focused on clinical and research data. While more clinical and analytics-oriented, it competes with Terra in the broader market for unified health data infrastructure.
- Apple HealthKit: Apple HealthKit is Apple's native platform for iOS health and fitness data aggregation, deeply integrated with Apple Watch. It is a broad incumbent that competes with Terra on the Apple/iOS side of the wearable data ecosystem.
- Google Health Connect: Google Health Connect is Google's unified Android health data API that aggregates data from wearables and health apps. It competes directly with Terra's value proposition on the Android side and is backed by Google's distribution and developer ecosystem.
- Garmin Connect Developer Program: Garmin's developer program provides direct access to Garmin device data via official APIs. Terra explicitly positions against it as an easier alternative; Garmin expanding its own developer offering or tightening access is a key competitive threat.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat6 records
Key risks6 records
Key highlights7 records
Customer concentration
Terra API social profiles
Digital presenceTerra API compliance and trust
Trust signalCompliance5 records
Terra API financial estimates
Financial estimateRevenue estimate
Valuation estimate
Terra API leadership team
Management profileNumber of profiles
Profiles1 record
Terra API subsidiaries and ownership
Company hierarchySubsidiaries1 record
Terra API funding detail
Funding detailFunding overview
Funding rounds2 records
Investors6 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Terra API M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Terra API
What does Terra API do?
Terra API is a unified health and fitness data API that provides a single integration for applications to connect with 500+ wearables, health apps, medical devices, and sensors. The platform normalizes data across providers (Garmin, Fitbit, Apple Health, Oura, WHOOP, Strava, etc.) into a consistent JSON schema, handles OAuth authentication and token refresh automatically, and delivers data via webhooks with real-time WebSocket streaming. It also offers native SDKs (JavaScript, Python, iOS, Android) and an embeddable connection widget for developers building health, fitness, clinical research, insurance, and corporate wellness applications.
Is Terra API a public or private company?
Terra API is a private company. It is classified as venture growth investor backed and is currently operating.
When was Terra API founded?
Terra API was founded in 2020. It employs 11 to 50 people.
Where is Terra API based?
Terra API is headquartered in London, United Kingdom, in the Europe region.
How does Terra API make money?
One revenue line is on record: API Subscription.
Who are Terra API's main competitors?
Direct peers on record are Validic, 1upHealth, Redox, Particle Health and Human API. Thryve is listed as an emerging player. Broad incumbents are Datavant, Apple HealthKit, Google Health Connect and Garmin Connect Developer Program.
Does Terra API have an API?
Yes. Terra API is a health and fitness data API that provides a single integration for apps to connect with wearables, health apps, medical devices, and sensors. It delivers data via webhook-based push architecture with minimal latency. The API normalizes data from 500+ providers into a consistent JSON schema. Terra provides native SDKs in JavaScript, Python, iOS, and Android. Features include OAuth authentication handling, token refresh management, data deduplication, data backfills for historical data, and real-time streaming via WebSocket. Developer documentation is at docs.tryterra.co.
What industry is Terra API in?
Terra API's product category is Health Data API. Its primary akta.pro industry code is HLACABAD, API Management & Developer Portals for Health Data, with a secondary code of BPAMAOAG, API Observability, Testing & Monitoring. Its NAICS code is 518210 and its SIC code is 7371.