Terra
Terra is a unified wearables and health-data API that aggregates data from 500+ wearables, fitness trackers, and health apps - Garmin, Fitbit, Oura, Apple Health, Whoop, Strava, Google Fit, Polar, Withings, and many more - behind a single normalized REST interface. Developers connect end users through the Terra Widget or a custom authentication flow, then receive normalized Activity, Body, Daily, Sleep, Nutrition, Menstruation, and Athlete data. Terra's primary delivery model is asynchronous - requested and newly available health data is streamed to a developer-configured webhook destination rather than returned inline, with REST read endpoints available for on-demand historical pulls.
Terra publishes 10 APIs on the APIs.io network, including Activity API, Athlete API, Authentication API, and 7 more. Tagged areas include Wearables, Health Data, Fitness, Aggregator, and Webhooks.
Terra’s developer surface includes authentication, documentation, engineering blog, and 8 more developer resources.
Kin Score
APIs 11
Individual APIs this provider publishes, each with its own machine-readable definition.
Terra Webhooks
Terra's primary data-delivery mechanism. Rather than a polling or WebSocket transport, Terra streams normalized health data and lifecycle events - auth, deauth, connection error...
Terra Activity API
Workout and exercise sessions.
Terra Athlete API
Connected-user athlete profile and demographics.
Terra Authentication API
Connect and disconnect end-user wearable and health accounts.
Terra Body API
Body and biometric measurements.
Terra Daily API
Day-level aggregated summaries.
Terra Integrations API
Catalog of supported wearables, trackers, and health apps.
Terra Menstruation API
Menstrual cycle and reproductive health data.
Terra Nutrition API
Logged nutrition and dietary intake.
Terra Sleep API
Sleep sessions and stages.
Terra Users API
Look up and manage connected users and subscriptions.
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Open Collections 1
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
Terra API
OPEN COLLECTIONPricing Plans 1
Published pricing tiers and plan structures.
Rate Limits 1
Documented rate limits and quota policies.
Terra Api Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals for API financial operations.
Terra Api Finops
FINOPSSecurity Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Documentation 1
Reference material describing how the API behaves
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Build 1
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
Operate 1
Status, limits, changes, and where to get help
Commercial 2
Pricing, plans, and the legal terms of use
Company 3
The organization behind the API