Hevy

Hevy is a gym workout tracker and planner app for iOS, Android and the web, operated by Hevy Studios, S.L. and used by a community the company describes as 15+ million lifters. Members log strength-training sessions, build and reuse routines, organize them into folders, browse a large exercise library, and track body measurements and progress over time. Hevy also runs Hevy Coach, a separate product for personal trainers who program and monitor client training. For developers, Hevy Pro subscribers can mint an API key in the web app and call a public REST API at api.hevyapp.com covering workouts, a workout change-feed, routines, routine folders, exercise templates, exercise history, body measurements and account info. The company also publishes a first-party ChatGPT Custom GPT ("Hevy - Gym workout planner") whose OAuth-authenticated action spec it keeps in its own GitHub organization.

Hevy publishes 7 API contracts indexed on the APIs.io network, including Exercise History API, Exercise Templates API, Measurements API, and 4 more. Tagged areas include Company, Fitness, Health, Workout Tracking, and Strength Training.

Hevy’s developer surface includes documentation, API reference, support, engineering blog, pricing, signup flow, changelog, and 22 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

47.7/100 developing ▬ flat Agent 22/100 agent aware Front door AI 1/6 silent saas Full breakdown ↓
scored 2026-10-23 · rubric v0.25.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

2 published contracts

Company Fitness Health Workout Tracking Strength Training Consumer App Mobile Quantified Self Personal Training Health Data

Kin Score

Kin Score How this is scored →
scored 2026-10-23 · rubric v0.25.0

Composite quality — 47.7/100 · developing

Contract Quality 8.1 / 19

Developer Ergonomics 7.1 / 15

Access Clarity 9.9 / 15

Operational Transparency 3.3 / 10

Contract Governance 0.4 / 9

Discoverability 5.5 / 8

Regulatory Posture 4.5 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 22/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 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 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 0 / 3

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/.

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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/hevy: 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	-	-	-
Mobile SDK Publishers (Play SDK Index, CocoaPods, ADA certification)	undeclared	-	-	-
Raycast Store Extensions (first-party publishers + community-wrapped products)	undeclared	-	-	-
Obsidian Community Plugins (third-party APIs the Obsidian plugin ecosystem integrates)	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 7

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

Hevy Exercise History API

The ExerciseHistory API from Hevy — 1 operation(s) for exercisehistory.

Hevy Exercise Templates API

The ExerciseTemplates API from Hevy — 2 operation(s) for exercisetemplates.

Hevy Measurements API

The Measurements API from Hevy — 2 operation(s) for measurements.

Hevy Routine Folders API

The RoutineFolders API from Hevy — 3 operation(s) for routinefolders.

Hevy Routines API

The Routines API from Hevy — 3 operation(s) for routines.

Hevy Users API

The Users API from Hevy — 1 operation(s) for users.

Hevy Workouts API

The Workouts API from Hevy — 5 operation(s) for workouts.

Scroll for all 7

Pricing Plans 1

Published pricing tiers and plan structures.

Hevy Plans Pricing

2 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Hevy Rate Limits

0 limits

RATE LIMITS

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Hevy Public Api Overlay

27 actions · servers · hevy-public-api-openapi.json

DERIVED

Security Posture 2

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

Hevy Authentication

2 schemes

SECURITY

Hevy Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

SignUp

SignUp

Login

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Lifecycle

Conventions

ErrorCatalog

DataModel

Conformance

Build 2

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 6

Status, limits, changes, and where to get help

Support

HelpCenter

StatusPage

ChangeLog

ChangeLog

RateLimits

Commercial 4

Pricing, plans, and the legal terms of use

Pricing

TermsOfService

PrivacyPolicy

Plans

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: hevy
name: Hevy
description: Hevy is a gym workout tracker and planner app for iOS, Android and the web, operated by Hevy Studios, S.L. and
  used by a community the company describes as 15+ million lifters. Members log strength-training sessions, build and reuse
  routines, organize them into folders, browse a large exercise library, and track body measurements and progress over time.
  Hevy also runs Hevy Coach, a separate product for personal trainers who program and monitor client training. For developers,
  Hevy Pro subscribers can mint an API key in the web app and call a public REST API at api.hevyapp.com covering workouts,
  a workout change-feed, routines, routine folders, exercise templates, exercise history, body measurements and account info.
  The company also publishes a first-party ChatGPT Custom GPT ("Hevy - Gym workout planner") whose OAuth-authenticated action
  spec it keeps in its own GitHub organization.
deliveryModel:
  model: saas
  license_evidence:
    not_product:
    - hevyapp/hevy-gpt
  open_source: unknown
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: low
  source:
  - openapi
  - pricing
  - repository-not-product
  generated: '2026-09-25'
  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
  - rate-limits
  - security
  generated: '2026-09-02'
  method: derived
image: https://www.hevyapp.com/wp-content/uploads/OG-image.png
url: https://raw.githubusercontent.com/api-evangelist/hevy/refs/heads/main/apis.yml
x-type: company
x-source: harvest:health-device-stack
specificationVersion: '0.20'
created: '2026-08-27'
modified: '2026-08-27'
tags:
- Company
- Fitness
- Health
- Workout Tracking
- Strength Training
- Consumer App
- Mobile
- Quantified Self
- Personal Training
- Health Data
tags_raw:
- company
- fitness
- health
- workout-tracking
- strength-training
- consumer-apps
- mobile
- quantified-self
- personal-training
- health-data
apis:
- aid: hevy:hevy-exercisehistory-api
  name: Hevy Exercise History API
  description: The ExerciseHistory API from Hevy — 1 operation(s) for exercisehistory.
  humanURL: https://api.hevyapp.com/docs
  baseURL: https://api.hevyapp.com
  tags:
  - ExerciseHistory
  properties:
  - type: OpenAPI
    url: openapi/hevy-exercisehistory-api-openapi.yml
  - type: Documentation
    url: https://api.hevyapp.com/docs
  - type: APIReference
    url: https://api.hevyapp.com/docs
  - type: Authentication
    url: authentication/hevy-authentication.yml
  - type: Conventions
    url: conventions/hevy-conventions.yml
  - type: ErrorCatalog
    url: errors/hevy-problem-types.yml
  - type: DataModel
    url: data-model/hevy-data-model.yml
  - type: SourceCode
    url: https://github.com/hevyapp/hevy-gpt
  - type: Documentation
    url: https://chatgpt.com/g/g-68278fb711f881919f635175ace543f9-hevy-gym-workout-planner
- aid: hevy:hevy-exercisetemplates-api
  name: Hevy Exercise Templates API
  description: The ExerciseTemplates API from Hevy — 2 operation(s) for exercisetemplates.
  humanURL: https://api.hevyapp.com/docs
  baseURL: https://api.hevyapp.com
  tags:
  - ExerciseTemplates
  properties:
  - type: OpenAPI
    url: openapi/hevy-exercisetemplates-api-openapi.yml
  - type: Documentation
    url: https://api.hevyapp.com/docs
  - type: APIReference
    url: https://api.hevyapp.com/docs
  - type: Authentication
    url: authentication/hevy-authentication.yml
  - type: Conventions
    url: conventions/hevy-conventions.yml
  - type: ErrorCatalog
    url: errors/hevy-problem-types.yml
  - type: DataModel
    url: data-model/hevy-data-model.yml
  - type: SourceCode
    url: https://github.com/hevyapp/hevy-gpt
  - type: Documentation
    url: https://chatgpt.com/g/g-68278fb711f881919f635175ace543f9-hevy-gym-workout-planner
- aid: hevy:hevy-measurements-api
  name: Hevy Measurements API
  description: The Measurements API from Hevy — 2 operation(s) for measurements.
  humanURL: https://api.hevyapp.com/docs
  baseURL: https://api.hevyapp.com
  tags:
  - Measurements
  properties:
  - type: OpenAPI
    url: openapi/hevy-measurements-api-openapi.yml
  - type: Documentation
    url: https://api.hevyapp.com/docs
  - type: APIReference
    url: https://api.hevyapp.com/docs
  - type: Authentication
    url: authentication/hevy-authentication.yml
  - type: Conventions
    url: conventions/hevy-conventions.yml
  - type: ErrorCatalog
    url: errors/hevy-problem-types.yml
  - type: DataModel
    url: data-model/hevy-data-model.yml
  - type: SourceCode
    url: https://github.com/hevyapp/hevy-gpt
  - type: Documentation
    url: https://chatgpt.com/g/g-68278fb711f881919f635175ace543f9-hevy-gym-workout-planner
- aid: hevy:hevy-routinefolders-api
  name: Hevy Routine Folders API
  description: The RoutineFolders API from Hevy — 3 operation(s) for routinefolders.
  humanURL: https://api.hevyapp.com/docs
  baseURL: https://api.hevyapp.com
  tags:
  - RoutineFolders
  properties:
  - type: OpenAPI
    url: openapi/hevy-routinefolders-api-openapi.yml
  - type: Documentation
    url: https://api.hevyapp.com/docs
  - type: APIReference
    url: https://api.hevyapp.com/docs
  - type: Authentication
    url: authentication/hevy-authentication.yml
  - type: Conventions
    url: conventions/hevy-conventions.yml
  - type: ErrorCatalog
    url: errors/hevy-problem-types.yml
  - type: DataModel
    url: data-model/hevy-data-model.yml
  - type: SourceCode
    url: https://github.com/hevyapp/hevy-gpt
  - type: Documentation
    url: https://chatgpt.com/g/g-68278fb711f881919f635175ace543f9-hevy-gym-workout-planner
- aid: hevy:hevy-routines-api
  name: Hevy Routines API
  description: The Routines API from Hevy — 3 operation(s) for routines.
  humanURL: https://api.hevyapp.com/docs
  baseURL: https://api.hevyapp.com
  tags:
  - Routines
  properties:
  - type: OpenAPI
    url: openapi/hevy-routines-api-openapi.yml
  - type: Documentation
    url: https://api.hevyapp.com/docs
  - type: APIReference
    url: https://api.hevyapp.com/docs
  - type: Authentication
    url: authentication/hevy-authentication.yml
  - type: Conventions
    url: conventions/hevy-conventions.yml
  - type: ErrorCatalog
    url: errors/hevy-problem-types.yml
  - type: DataModel
    url: data-model/hevy-data-model.yml
  - type: SourceCode
    url: https://github.com/hevyapp/hevy-gpt
  - type: Documentation
    url: https://chatgpt.com/g/g-68278fb711f881919f635175ace543f9-hevy-gym-workout-planner
- aid: hevy:hevy-users-api
  name: Hevy Users API
  description: The Users API from Hevy — 1 operation(s) for users.
  humanURL: https://api.hevyapp.com/docs
  baseURL: https://api.hevyapp.com
  tags:
  - User
  tags_raw:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/hevy-users-api-openapi.yml
  - type: Documentation
    url: https://api.hevyapp.com/docs
  - type: APIReference
    url: https://api.hevyapp.com/docs
  - type: Authentication
    url: authentication/hevy-authentication.yml
  - type: Conventions
    url: conventions/hevy-conventions.yml
  - type: ErrorCatalog
    url: errors/hevy-problem-types.yml
  - type: DataModel
    url: data-model/hevy-data-model.yml
  - type: SourceCode
    url: https://github.com/hevyapp/hevy-gpt
  - type: Documentation
    url: https://chatgpt.com/g/g-68278fb711f881919f635175ace543f9-hevy-gym-workout-planner
- aid: hevy:hevy-workouts-api
  name: Hevy Workouts API
  description: The Workouts API from Hevy — 5 operation(s) for workouts.
  humanURL: https://api.hevyapp.com/docs
  baseURL: https://api.hevyapp.com
  tags:
  - Workouts
  properties:
  - type: OpenAPI
    url: openapi/hevy-workouts-api-openapi.yml
  - type: Documentation
    url: https://api.hevyapp.com/docs
  - type: APIReference
    url: https://api.hevyapp.com/docs
  - type: Authentication
    url: authentication/hevy-authentication.yml
  - type: Conventions
    url: conventions/hevy-conventions.yml
  - type: ErrorCatalog
    url: errors/hevy-problem-types.yml
  - type: DataModel
    url: data-model/hevy-data-model.yml
  - type: SourceCode
    url: https://github.com/hevyapp/hevy-gpt
  - type: Documentation
    url: https://chatgpt.com/g/g-68278fb711f881919f635175ace543f9-hevy-gym-workout-planner
common:
- type: Overlay
  url: overlays/hevy-public-api-overlay.yaml
- type: Website
  url: https://www.hevyapp.com
- type: DeveloperPortal
  url: https://api.hevyapp.com/docs
- type: Documentation
  url: https://api.hevyapp.com/docs
- type: APIReference
  url: https://api.hevyapp.com/docs
- type: Support
  url: https://www.hevyapp.com/contact/
- type: HelpCenter
  url: https://www.hevyapp.com/help/
- type: Blog
  url: https://www.hevyapp.com/blog/
- type: GitHubOrganization
  url: https://github.com/hevyapp
- type: Pricing
  url: https://hevy.com/pricing
- type: SignUp
  url: https://hevy.com/signup
- type: Login
  url: https://hevy.com/login
- type: TermsOfService
  url: https://www.hevyapp.com/legal/terms-and-conditions/
- type: PrivacyPolicy
  url: https://www.hevyapp.com/legal/privacy-policy/
- type: StatusPage
  url: https://www.hevyapp.com/status/
- type: ChangeLog
  url: https://www.hevyapp.com/community-updates/
- type: ChangeLog
  url: changelog/hevy-changelog.yml
- type: Lifecycle
  url: lifecycle/hevy-lifecycle.yml
- type: Authentication
  url: authentication/hevy-authentication.yml
- type: Conventions
  url: conventions/hevy-conventions.yml
- type: ErrorCatalog
  url: errors/hevy-problem-types.yml
- type: DataModel
  url: data-model/hevy-data-model.yml
- type: Conformance
  url: conformance/hevy-conformance.yml
- type: DomainSecurity
  url: security/hevy-domain-security.yml
- type: Packages
  url: packages/hevy-packages.yml
- type: RateLimits
  url: rate-limits/hevy-rate-limits.yml
- type: Plans
  url: plans/hevy-plans-pricing.yml
- type: LLMsTxt
  url: llms/hevy-llms.txt
- type: AgentSkill
  url: skills/_index.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-08-27'
  status: enriched
  artifacts_added: 23
  pass: local-v1

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