aid: easysize
name: EasySize
description: >-
  EasySize is an AI-powered size-recommendation platform for fashion e-commerce, marketed
  as "Fit Quiz." It helps clothing, footwear, sportswear, and swimwear retailers reduce
  returns and increase conversion by giving shoppers a personalized size recommendation
  without asking them for body measurements. EasySize ships as a native Shopify app and as
  a JavaScript library ("web app") that merchants embed on non-Shopify storefronts; the
  library is configured with a merchant-specific shop_id and product context and renders an
  in-page Fit Quiz widget. Merchants wire order-tracking and return-tracking events back to
  EasySize so the recommendation algorithm can learn, and can capture emails and drive
  personalized flows through a Klaviyo integration. EasySize supports 11+ languages with
  auto-detection, multiple size formats (UK/EU/US/international/custom), unisex and
  gender-aware logic, and additional fit/width/length recommendations. The company was a
  portfolio company of 500 Global.
url: https://raw.githubusercontent.com/api-evangelist/easysize/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
image: https://cdn.prod.website-files.com/61fd2ddef6278cfc29072ae9/61fd48610cc67c01afaecfd3_easysize-logo.svg
tags:
- Company
- Fashion
- E-Commerce
- Size Recommendation
- Fit
- Retail
- Shopify
- Personalization
- Widget
- JavaScript
apis:
- name: EasySize Fit Quiz JavaScript Library
  description: >-
    Client-side JavaScript library that embeds the EasySize "Fit Quiz" size-recommendation
    widget on a merchant storefront. Loaded via a script tag from the EasySize web app CDN,
    it exposes a global EasySize object configured with a merchant shop_id plus product
    context, and provides hooks for size selection, order tracking, and return tracking.
  humanURL: https://developers.easysize.me
  baseURL: https://webapp.easysize.me
  tags:
  - Size Recommendation
  - JavaScript
  - Widget
  properties:
  - type: Documentation
    url: https://developers.easysize.me
  - type: GettingStarted
    url: https://developers.easysize.me/easysize_library/
  - type: Packages
    url: packages/easysize-packages.yml
  - type: SDKs
    url: packages/easysize-packages.yml
  - type: Components
    url: components/easysize-components.yml
  - type: Conventions
    url: conventions/easysize-conventions.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://easysize.me
- type: DeveloperPortal
  url: https://developers.easysize.me
- type: Documentation
  url: https://developers.easysize.me
- type: GettingStarted
  url: https://developers.easysize.me/easysize_library/
- type: HelpCenter
  url: https://help.easysize.me
- type: Support
  url: https://help.easysize.me
- type: Blog
  url: https://www.easysize.me/blog
- type: Pricing
  url: https://www.easysize.me/pricing
- type: TermsOfService
  url: https://www.easysize.me/terms-of-service
- type: PrivacyPolicy
  url: https://www.easysize.me/privacy-policy
- type: SignUp
  url: https://apps.shopify.com/fit-quiz
- type: StatusPage
  url: https://easysize.statuspage.io
- type: Lifecycle
  url: lifecycle/easysize-lifecycle.yml
- type: LLMsTxt
  url: llms/easysize-llms.txt
- type: WellKnown
  url: well-known/easysize-well-known.yml
- type: DomainSecurity
  url: security/easysize-domain-security.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence