Google Fit REST

The Google Fit REST API enables you to store and access health and wellness data in the fitness store from apps on any platform. You can manage data sources, datasets, sessions, and aggregate fitness data for activities like steps, heart rate, sleep, and workouts.

Google Fit REST publishes 1 API contract indexed on the APIs.io network: Users API. Tagged areas include Activity Tracking, Fitness, Google, Health, and Sessions.

The Google Fit REST catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.

Google Fit REST’s developer surface includes authentication, getting-started guide, pricing, and 9 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

34.9/100 thin ▬ flat Agent 23/100 agent aware saas Full breakdown ↓
scored 2026-10-17 · rubric v0.24.0

AccessFreemiumSelf serve⚡ Free to try

1 published contract

Activity Tracking Fitness Google Health Sessions Wearables Wellness

Kin Score

Kin Score How this is scored →
scored 2026-10-17 · rubric v0.24.0

Composite quality — 34.9/100 · thin

Contract Quality 11.2 / 19

Developer Ergonomics 3.6 / 15

Access Clarity 2.8 / 15

Operational Transparency 0.8 / 10

Contract Governance 1.2 / 9

Discoverability 5.0 / 8

Regulatory Posture 4.7 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 23/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 6 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Regulatory Posture applies to this provider. Its tags matched the Health regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/google-fitness: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Health and Wellness (consumer health, fitness, wearables)	undeclared	-	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

Google Fit REST Users API

The Users API from Google Fit REST — 6 operation(s) for users.

Open Collections 3

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Google Fit REST API

OPEN COLLECTION

Google Fit REST Users API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Google Fitness Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Google Fitness Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Google Fitness Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Fitness Context

12 classes · 2 properties

JSON-LD

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs.

Google Fit REST — jsonschema rules

5 rules · 3 warnings 2 info

SPECTRAL

Google Fit REST API Rules

18 rules · 10 errors 6 warnings 2 info

SPECTRAL

JSON Schema 1

Standalone JSON Schema definitions for this provider's data models.

Google Fit Session

9 properties

JSON SCHEMA

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Google Fitness Authentication

oauth2 · 1 scheme

SECURITY

Google Fitness Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Google Fitness Vulnerability Disclosure

security.txt · contact published

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Google Fitness Scopes

6 scopes · authorizationCode

6 scopes

SCOPES

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Google Fitness Agentic Access

9 operations · 5 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

JSONLD

JSONLD

Access & Security 4

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Authentication

Authentication

OAuthScopes

OAuthScopes

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Pricing

Pricing

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

name: Google Fit REST
description: The Google Fit REST API enables you to store and access health and wellness data in the fitness store from apps
  on any platform. You can manage data sources, datasets, sessions, and aggregate fitness data for activities like steps,
  heart rate, sleep, and workouts.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/google-fitness.png
url: https://raw.githubusercontent.com/api-evangelist/google-fitness/refs/heads/main/apis.yml
created: '2026-03-13'
modified: '2026-05-19'
specificationVersion: '0.23'
tags:
- Activity Tracking
- Fitness
- Google
- Health
- Sessions
- Wearables
- Wellness
apis:
- aid: google-fitness:google-fitness-users-api
  name: Google Fit REST Users API
  description: The Users API from Google Fit REST — 6 operation(s) for users.
  humanURL: https://developers.google.com/fit
  baseURL: https://www.googleapis.com/fitness/v1
  tags:
  - User
  tags_raw:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/google-fitness-users-api-openapi.yml
  - type: JSONSchema
    url: json-schema/fitness.json
common:
- type: Plans
  url: plans/google-fitness-plans-pricing.yml
- type: RateLimits
  url: rate-limits/google-fitness-rate-limits.yml
- type: FinOps
  url: finops/google-fitness-finops.yml
- type: Website
  url: https://developers.google.com/fit
- type: AgenticAccess
  url: agentic-access/google-fitness-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/google-fitness-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/google-fitness-domain-security.yml
- type: Authentication
  url: authentication/google-fitness-authentication.yml
- type: OAuthScopes
  url: scopes/google-fitness-scopes.yml
- type: GettingStarted
  url: https://developers.google.com/fit/rest/v1/get-started
- type: Pricing
  url: https://developers.google.com/fit/terms
- type: JSONLD
  url: json-ld/fitness.jsonld
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-parent: google
x-relationship: product
x-status: deprecated
x-status-basis: 'developers.google.com/fit (fetched 2026-09-24): "The Google Fit APIs, including the Google Fit REST API,
  will be deprecated in 2026. As of May 1, 2024, developers cannot sign up to use these APIs." It directs developers to Health
  Connect. roadmap#667'
x-signups-closed: '2024-05-01'
x-sunset-date: '2026'
x-successor: Health Connect
x-successor-url: https://developer.android.com/health-and-fitness/guides/health-connect

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get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
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get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

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