Costco Wholesale

Costco Wholesale Corporation is a Fortune 500 American multinational membership-only big-box retail chain that operates warehouse clubs offering a wide selection of merchandise at discounted prices. Costco does not publish a public developer API; supplier and trading partner integrations are conducted through EDI and B2B channels using ANSI X12 transactions and the Costco Supplier Portal. Costco operates an e-commerce site, the Costco Travel and Costco Pharmacy properties, and the Costco Photo Center.

Costco Wholesale is profiled on the APIs.io network. Tagged areas include B2B, Big-Box, E-commerce, EDI, and Fortune 500.

Costco Wholesale’s developer surface includes product news, YouTube channel, and 23 more developer resources.

🌐 Visit website 📡 Source on GitHub

8.9/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

B2BBig-BoxE-commerceEDIFortune 500GroceryMembershipPharmacyRetailSupplier PortalTravelWarehouse ClubWholesale

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 8.9/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 0.0 / 20

Commercial Clarity 2.1 / 20

Operational Transparency 0.0 / 13

Governance 0.0 / 12

Discoverability 6.8 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

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

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/costco: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Security Posture 1

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

Costco Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Press 5

Recent news and press coverage referencing this provider.

Get Started 1

Portal, sign-up, and the first successful call

SupplierPortal

SupplierPortal

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Learn 1

Tutorials, courses, talks, and written guidance

YouTube

YouTube

Operate 1

Status, limits, changes, and where to get help

Contact

Contact

Commercial 2

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

TermsAndConditions

TermsAndConditions

Company 9

The organization behind the API

Website

Website

AboutUs

AboutUs

InvestorRelations

Careers

News

Facebook

Instagram

LinkedIn

Twitter

Twitter

Scroll for all 9

Other 10

Properties that don't map to a standard resource type

Sustainability

Sustainability

SupplierDiversity

VendorInquiries

Pharmacy

Travel

Photo

Optical

BusinessCenter

Membership

AccessibilityStatement

AccessibilityStatement

Scroll for all 10

Source (apis.yml)

aid: costco
name: Costco Wholesale
kind: company
description: Costco Wholesale Corporation is a Fortune 500 American multinational membership-only big-box retail chain that
  operates warehouse clubs offering a wide selection of merchandise at discounted prices. Costco does not publish a public
  developer API; supplier and trading partner integrations are conducted through EDI and B2B channels using ANSI X12 transactions
  and the Costco Supplier Portal. Costco operates an e-commerce site, the Costco Travel and Costco Pharmacy properties, and
  the Costco Photo Center.
url: https://raw.githubusercontent.com/api-evangelist/costco/refs/heads/main/apis.yml
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/costco.png
type: Index
access: Internal
position: Consuming
tags:
- B2B
- Big-Box
- E-commerce
- EDI
- Fortune 500
- Grocery
- Membership
- Pharmacy
- Retail
- Supplier Portal
- Travel
- Warehouse Club
- Wholesale
created: '2026-03-21'
modified: '2026-04-28'
specificationVersion: '0.20'
apis: []
common:
- type: DomainSecurity
  url: security/costco-domain-security.yml
- type: Website
  url: https://www.costco.com/
- type: AboutUs
  url: https://www.costco.com/about.html
- type: InvestorRelations
  url: https://investor.costco.com/
- type: Sustainability
  url: https://www.costco.com/sustainability.html
- type: Careers
  url: https://www.costco.com/jobs.html
- type: SupplierDiversity
  url: https://www.costco.com/supplier-diversity.html
- type: SupplierPortal
  url: https://www.costco.com/supplier-portal.html
- type: VendorInquiries
  url: https://www.costco.com/vendor-inquiries.html
- type: Pharmacy
  url: https://www.costco.com/pharmacy
- type: Travel
  url: https://www.costcotravel.com/
- type: Photo
  url: https://www.costcophotocenter.com/
- type: Optical
  url: https://www.costco.com/optical.html
- type: BusinessCenter
  url: https://www.costcobusinessdelivery.com/
- type: News
  url: https://www.costco.com/connection-magazine.html
- type: Membership
  url: https://www.costco.com/membership-information.html
- type: PrivacyPolicy
  url: https://www.costco.com/privacy-policy-information.html
- type: TermsAndConditions
  url: https://www.costco.com/terms-and-conditions-of-use.html
- type: AccessibilityStatement
  url: https://www.costco.com/accessibility.html
- type: Contact
  url: https://customerservice.costco.com/
- type: Facebook
  url: https://www.facebook.com/Costco
- type: Instagram
  url: https://www.instagram.com/costco/
- type: LinkedIn
  url: https://www.linkedin.com/company/costco-wholesale
- type: YouTube
  url: https://www.youtube.com/@CostcoWholesale
- type: Twitter
  url: https://twitter.com/Costco
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Costco Wholesale

Kin Score

Security Posture 1

Costco Domain Security

Press 5

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