JustGains

JustGains is a fitness platform offering workout logging, creator training content, nutrition tracking, and a public catalog of exercises, recipes, and workout templates. Available on web, iOS, and Android, it provides tools, guides, and a flexible workout forge for personalized training without requiring a signed-in account for public content.

JustGains publishes 19 API contracts indexed on the APIs.io network, including Auth API, Authen API, Creator Profiles API, and 16 more. Tagged areas include Fitness, Health, Workouts, Nutrition, and Platform.

The JustGains catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

JustGains’ developer surface includes changelog, API reference, authentication, documentation, and 16 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

34.6/100 thin Agent 35/100 agent ready Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

1 published contract

Fitness Health Workouts Nutrition Platform

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 34.6/100 · thin

Contract Quality 10.8 / 21

Developer Ergonomics 4.9 / 17

Access Clarity 4.7 / 17

Operational Transparency 1.6 / 11

Contract Governance 2.2 / 10

Discoverability 4.9 / 9

Regulatory Posture 2.2 / 15

Agent readiness — 35/100 · agent ready

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 0 / 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 5 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship Ask about this →
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented) Ask about this →
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented) Ask about this →
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link Ask about this →

7 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Access Clarity scores 27.7 — up to +14.5 composite points Ask about this →
Developer Ergonomics scores 28.6 — up to +14.3 composite points Ask about this →
Contract Quality scores 50.9 — up to +12.3 composite points Ask about this →

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

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 the provider profile at artifacts.apis.io/justgains-com/apis.yml: open an issue on github.com/api-evangelist/justgains-com to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 3

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

Dynamic Client Registration

measured — observed by APIs.io (published)

OpenAPI

measured — observed by APIs.io (published)

APIs 19

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

JustGains Auth API

The Auth API from JustGains — 5 operation(s) for auth.

JustGains Authen API

The Authen API from JustGains — 8 operation(s) for authen.

JustGains Creator Profiles API

The CreatorProfiles API from JustGains — 2 operation(s) for creatorprofiles.

JustGains Equipment API

The Equipment API from JustGains — 3 operation(s) for equipment.

JustGains Equipment Groups API

The EquipmentGroups API from JustGains — 3 operation(s) for equipmentgroups.

JustGains Exercise API

The Exercise API from JustGains — 10 operation(s) for exercise.

JustGains Exercise Category API

The ExerciseCategory API from JustGains — 3 operation(s) for exercisecategory.

JustGains Exercise Draft API

The ExerciseDraft API from JustGains — 1 operation(s) for exercisedraft.

JustGains Exercise Instruction API

The ExerciseInstruction API from JustGains — 2 operation(s) for exerciseinstruction.

JustGains Exercise Metric API

The ExerciseMetric API from JustGains — 3 operation(s) for exercisemetric.

JustGains Exercise Video API

The ExerciseVideo API from JustGains — 4 operation(s) for exercisevideo.

JustGains Just Gains API

The JustGains-API API from JustGains — 1 operation(s) for justgains-api.

JustGains Locale API

The Locale API from JustGains — 3 operation(s) for locale.

JustGains Media Asset API

The MediaAsset API from JustGains — 3 operation(s) for mediaasset.

JustGains Muscle API

The Muscle API from JustGains — 3 operation(s) for muscle.

JustGains Muscle Group API

The MuscleGroup API from JustGains — 3 operation(s) for musclegroup.

JustGains Published Statuses API

The PublishedStatuses API from JustGains — 4 operation(s) for publishedstatuses.

JustGains User API

The User API from JustGains — 2 operation(s) for user.

JustGains Workout API

The Workout API from JustGains — 5 operation(s) for workout.

Scroll for all 19

Semantic Vocabularies 1

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

Justgains Com Context

83 classes · 182 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

JustGains API Rules

34 rules · 30 error-severity 3 warn-severity 1 info-severity

SPECTRAL

JSON Schema 6

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

ExerciseDto

31 properties

JSON SCHEMA

ExerciseRequest

25 properties

JSON SCHEMA

MediaAsset

13 properties

JSON SCHEMA

User

30 properties

JSON SCHEMA

WorkoutData

9 properties

JSON SCHEMA

Workout

17 properties

JSON SCHEMA

Security Posture 2

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

JustGains Authentication

http · 1 scheme

SECURITY

JustGains Domain Security

TLSv1.3 · DMARC

SECURITY

Agentic Access (API Evangelist recommendations) 1

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

JustGains Agentic Access

117 operations · 67 acting · 1 human-in-the-loop

117 operations · 67 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

Login

Documentation 2

Reference material describing how the API behaves

APIReference

APIReference

Documentation

Documentation

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

LLMsTxt

WellKnown

LLMs

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

Conformance

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: justgains-com
name: JustGains
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
image: https://justgains.com/opengraph-image
description: JustGains is a fitness platform offering workout logging, creator training content, nutrition tracking, and a
  public catalog of exercises, recipes, and workout templates. Available on web, iOS, and Android, it provides tools, guides,
  and a flexible workout forge for personalized training without requiring a signed-in account for public content.
url: https://artifacts.apis.io/justgains-com/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-13 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-13'
modified: '2026-11-13'
tags:
- Fitness
- Health
- Workouts
- Nutrition
- Platform
tags_raw:
- Fitness
- Health
- Workout
- Nutrition
- Platform
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/justgains-com-agentic-access.yml
- type: Spectral
  url: rules/justgains-com-rules.yml
- type: JSONLD
  url: json-ld/justgains-com-context.jsonld
- type: Vocabulary
  url: vocabulary/justgains-com-vocabulary.yml
- type: DataModel
  url: data-model/justgains-com-data-model.yml
- type: Conformance
  url: conformance/justgains-com-conformance.yml
- type: LLMsTxt
  url: llms/justgains-com-llms.txt
- type: WellKnown
  url: well-known/justgains-com-well-known.yml
- type: Hosts
  url: hosts/justgains-com-hosts.yml
- type: Vendors
  url: vendors/justgains-com-vendors.yml
- type: TermsOfService
  url: https://justgains.com/terms
- type: PrivacyPolicy
  url: https://justgains.com/privacy
- type: Login
  url: https://justgains.com/auth/login
- type: ChangeLog
  url: https://justgains.com/changelog
- type: APIReference
  url: https://justgains.com/llms-full.txt
- type: Authentication
  url: authentication/justgains-com-authentication.yml
- type: DomainSecurity
  url: security/justgains-com-domain-security.yml
- type: Website
  url: https://justgains.com/
- type: Documentation
  url: https://justgains.com/sitemap.md
- type: LLMs
  url: https://justgains.com/llms.txt
apis:
- aid: justgains-com:justgains-com-auth-api
  name: JustGains Auth API
  description: The Auth API from JustGains — 5 operation(s) for auth.
  humanURL: https://justgains.com
  tags:
  - Authentication
  tags_raw:
  - Auth
  properties:
  - type: OpenAPI
    url: openapi/justgains-com-auth-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justgains-com-user-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-dto-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-request-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-media-asset-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-data-schema.json
- aid: justgains-com:justgains-com-authen-api
  name: JustGains Authen API
  description: The Authen API from JustGains — 8 operation(s) for authen.
  humanURL: https://justgains.com
  tags:
  - Authen
  properties:
  - type: OpenAPI
    url: openapi/justgains-com-authen-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justgains-com-user-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-dto-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-request-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-media-asset-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-data-schema.json
- aid: justgains-com:justgains-com-creatorprofiles-api
  name: JustGains Creator Profiles API
  description: The CreatorProfiles API from JustGains — 2 operation(s) for creatorprofiles.
  humanURL: https://justgains.com
  tags:
  - Creator Profiles
  tags_raw:
  - CreatorProfiles
  properties:
  - type: OpenAPI
    url: openapi/justgains-com-creatorprofiles-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justgains-com-user-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-dto-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-request-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-media-asset-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-data-schema.json
- aid: justgains-com:justgains-com-equipment-api
  name: JustGains Equipment API
  description: The Equipment API from JustGains — 3 operation(s) for equipment.
  humanURL: https://justgains.com
  tags:
  - Equipment
  properties:
  - type: OpenAPI
    url: openapi/justgains-com-equipment-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justgains-com-user-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-dto-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-request-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-media-asset-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-data-schema.json
- aid: justgains-com:justgains-com-equipmentgroups-api
  name: JustGains Equipment Groups API
  description: The EquipmentGroups API from JustGains — 3 operation(s) for equipmentgroups.
  humanURL: https://justgains.com
  tags:
  - EquipmentGroups
  properties:
  - type: OpenAPI
    url: openapi/justgains-com-equipmentgroups-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justgains-com-user-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-dto-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-request-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-media-asset-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-data-schema.json
- aid: justgains-com:justgains-com-exercise-api
  name: JustGains Exercise API
  description: The Exercise API from JustGains — 10 operation(s) for exercise.
  humanURL: https://justgains.com
  tags:
  - Exercise
  properties:
  - type: OpenAPI
    url: openapi/justgains-com-exercise-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justgains-com-user-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-dto-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-request-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-media-asset-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-data-schema.json
- aid: justgains-com:justgains-com-exercisecategory-api
  name: JustGains Exercise Category API
  description: The ExerciseCategory API from JustGains — 3 operation(s) for exercisecategory.
  humanURL: https://justgains.com
  tags:
  - ExerciseCategory
  properties:
  - type: OpenAPI
    url: openapi/justgains-com-exercisecategory-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justgains-com-user-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-dto-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-request-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-media-asset-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-data-schema.json
- aid: justgains-com:justgains-com-exercisedraft-api
  name: JustGains Exercise Draft API
  description: The ExerciseDraft API from JustGains — 1 operation(s) for exercisedraft.
  humanURL: https://justgains.com
  tags:
  - ExerciseDraft
  properties:
  - type: OpenAPI
    url: openapi/justgains-com-exercisedraft-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justgains-com-user-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-dto-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-request-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-media-asset-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-data-schema.json
- aid: justgains-com:justgains-com-exerciseinstruction-api
  name: JustGains Exercise Instruction API
  description: The ExerciseInstruction API from JustGains — 2 operation(s) for exerciseinstruction.
  humanURL: https://justgains.com
  tags:
  - ExerciseInstruction
  properties:
  - type: OpenAPI
    url: openapi/justgains-com-exerciseinstruction-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justgains-com-user-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-dto-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-request-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-media-asset-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-data-schema.json
- aid: justgains-com:justgains-com-exercisemetric-api
  name: JustGains Exercise Metric API
  description: The ExerciseMetric API from JustGains — 3 operation(s) for exercisemetric.
  humanURL: https://justgains.com
  tags:
  - ExerciseMetric
  properties:
  - type: OpenAPI
    url: openapi/justgains-com-exercisemetric-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justgains-com-user-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-dto-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-request-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-media-asset-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-data-schema.json
- aid: justgains-com:justgains-com-exercisevideo-api
  name: JustGains Exercise Video API
  description: The ExerciseVideo API from JustGains — 4 operation(s) for exercisevideo.
  humanURL: https://justgains.com
  tags:
  - ExerciseVideo
  properties:
  - type: OpenAPI
    url: openapi/justgains-com-exercisevideo-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justgains-com-user-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-dto-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-request-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-media-asset-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-data-schema.json
- aid: justgains-com:justgains-com-justgains-api-api
  name: JustGains Just Gains API
  description: The JustGains-API API from JustGains — 1 operation(s) for justgains-api.
  humanURL: https://justgains.com
  tags:
  - JustGains-API
  properties:
  - type: OpenAPI
    url: openapi/justgains-com-justgains-api-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justgains-com-user-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-dto-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-request-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-media-asset-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-data-schema.json
- aid: justgains-com:justgains-com-locale-api
  name: JustGains Locale API
  description: The Locale API from JustGains — 3 operation(s) for locale.
  humanURL: https://justgains.com
  tags:
  - Locale
  properties:
  - type: OpenAPI
    url: openapi/justgains-com-locale-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justgains-com-user-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-dto-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-request-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-media-asset-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-data-schema.json
- aid: justgains-com:justgains-com-mediaasset-api
  name: JustGains Media Asset API
  description: The MediaAsset API from JustGains — 3 operation(s) for mediaasset.
  humanURL: https://justgains.com
  tags:
  - MediaAsset
  properties:
  - type: OpenAPI
    url: openapi/justgains-com-mediaasset-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justgains-com-user-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-dto-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-request-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-media-asset-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-data-schema.json
- aid: justgains-com:justgains-com-muscle-api
  name: JustGains Muscle API
  description: The Muscle API from JustGains — 3 operation(s) for muscle.
  humanURL: https://justgains.com
  tags:
  - Muscle
  properties:
  - type: OpenAPI
    url: openapi/justgains-com-muscle-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justgains-com-user-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-dto-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-request-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-media-asset-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-data-schema.json
- aid: justgains-com:justgains-com-musclegroup-api
  name: JustGains Muscle Group API
  description: The MuscleGroup API from JustGains — 3 operation(s) for musclegroup.
  humanURL: https://justgains.com
  tags:
  - MuscleGroup
  properties:
  - type: OpenAPI
    url: openapi/justgains-com-musclegroup-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justgains-com-user-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-dto-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-request-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-media-asset-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-data-schema.json
- aid: justgains-com:justgains-com-publishedstatuses-api
  name: JustGains Published Statuses API
  description: The PublishedStatuses API from JustGains — 4 operation(s) for publishedstatuses.
  humanURL: https://justgains.com
  tags:
  - PublishedStatuses
  properties:
  - type: OpenAPI
    url: openapi/justgains-com-publishedstatuses-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justgains-com-user-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-dto-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-request-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-media-asset-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-data-schema.json
- aid: justgains-com:justgains-com-user-api
  name: JustGains User API
  description: The User API from JustGains — 2 operation(s) for user.
  humanURL: https://justgains.com
  tags:
  - User
  properties:
  - type: OpenAPI
    url: openapi/justgains-com-user-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justgains-com-user-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-dto-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-request-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-media-asset-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-data-schema.json
- aid: justgains-com:justgains-com-workout-api
  name: JustGains Workout API
  description: The Workout API from JustGains — 5 operation(s) for workout.
  humanURL: https://justgains.com
  tags:
  - Workouts
  tags_raw:
  - Workout
  properties:
  - type: OpenAPI
    url: openapi/justgains-com-workout-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justgains-com-user-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-dto-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-exercise-request-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-media-asset-schema.json
  - type: JSONSchema
    url: json-schema/justgains-com-workout-data-schema.json
x-enrichment:
  date: '2026-11-13'
  status: enriched
  artifacts_added: 22
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

JustGains API — frequently asked questions

Does JustGains have an API?

Yes. APIs.io lists 19 APIs from JustGains, including JustGains Auth API, JustGains Authen API and JustGains Creator Profiles API, and 16 more.

Is there an OpenAPI specification for the JustGains API?

Yes. APIs.io indexes 19 OpenAPI specifications for JustGains, each linked for download from this page.

How do I authenticate with the JustGains API?

JustGains documents its authentication (http · 1 scheme). The details are profiled on APIs.io as JustGains Authentication.

Is the JustGains API ready for AI agents?

JustGains has a Kin Score of 34.6 out of 100 (thin) and an Agent Readiness score of 34.9 (agent-ready), scored by API Evangelist on 2026-11-13.

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