GNC Holdings

GNC Holdings, LLC (General Nutrition Centers) is an American specialty retailer of health, wellness, and performance products including vitamins, minerals, herbal supplements, sports nutrition, diet, and energy products. Founded in 1935 and headquartered in Pittsburgh, Pennsylvania, GNC is a wholly owned subsidiary of Harbin Pharmaceutical Group following its 2020 acquisition. The company operates owned and franchised retail locations, online stores, and retail partnerships across approximately 50 countries.

GNC Holdings is profiled on the APIs.io network. Tagged areas include Diet, Health, Nutrition, Retail, and Sports Nutrition.

🌐 Visit website 📡 Source on GitHub

6.2/100 minimal ▬ flat Agent 0/100 human only saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

0 APIs

Diet Health Nutrition Retail Sports Nutrition Supplements Vitamins Wellness Fortune 1000

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 6.2/100 · minimal

Contract Quality 0.0 / 21

Developer Ergonomics 0.0 / 17

Access Clarity 1.8 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 4.3 / 9

Regulatory Posture 1.9 / 15

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 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 0 / 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 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/.

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/gnc-holdings: 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 →

Security Posture 1

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

Gnc Holdings Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Press 5

Recent news and press coverage referencing this provider.

GNC Becomes First Major Retailer to Launch GLP-1 ...

2026-05-25

GNC Holdings Inc.

2026-05-25

GNC reports sale of substantially of its assets to Harbin ...

2026-05-25

XBRL Viewer

2026-05-25

Nutrient Content Market Hits New High | Major Giants GNC

2026-05-25

Resources

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Press Releases

Press Releases

Commercial 2

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

TermsOfService

TermsOfService

Company 3

The organization behind the API

LinkedIn

Website

Website

Careers

Careers

Other 5

Properties that don't map to a standard resource type

Holdings

Customers

Stores

Affiliate

Franchise

Source (apis.yml)

aid: gnc-holdings
name: GNC Holdings
description: GNC Holdings, LLC (General Nutrition Centers) is an American specialty retailer of health, wellness, and performance
  products including vitamins, minerals, herbal supplements, sports nutrition, diet, and energy products. Founded in 1935
  and headquartered in Pittsburgh, Pennsylvania, GNC is a wholly owned subsidiary of Harbin Pharmaceutical Group following
  its 2020 acquisition. The company operates owned and franchised retail locations, online stores, and retail partnerships
  across approximately 50 countries.
type: Index
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/gnc-holdings.png
access: 3rd-Party
created: '2026-03-24'
modified: '2026-04-28'
position: Consuming
tags:
- Diet
- Health
- Nutrition
- Retail
- Sports Nutrition
- Supplements
- Vitamins
- Wellness
- Fortune 1000
url: https://raw.githubusercontent.com/api-evangelist/gnc-holdings/refs/heads/main/apis.yml
specificationVersion: '0.23'
apis: []
common:
- type: DomainSecurity
  url: security/gnc-holdings-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/gnc
- type: Website
  url: https://www.gnc.com/
- type: Holdings
  url: https://www.gnc-holdings.com/
- type: Customers
  url: https://www.gnc.com/customer-service.html
- type: Stores
  url: https://www.gnc.com/stores/
- type: Careers
  url: https://www.gnc.com/careers.html
- type: Affiliate
  url: https://www.gnc.com/affiliate-program/
- type: Franchise
  url: https://www.gnc.com/franchise/
- type: PrivacyPolicy
  url: https://www.gnc.com/privacy-policy.html
- type: TermsOfService
  url: https://www.gnc.com/terms-and-conditions.html
- type: Press Releases
  url: https://www.gnc-holdings.com/news/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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