Add size recommendations
to your store.

Developer documentation

Add size recommendations
to your store.

Shoppers measure once with a tape measure. Your store gets their size in your own size labels, never their measurements.

Start a quickstartHow it works

<!-- next to your size picker --><tys-size-guide  publishable-key="pk_live_…"  product="STRAIGHT-JEANS"></tys-size-guide>

SMLXL

Your size: M

What you add next to your size picker

Add size recommendations to your store

Pick your stack. Each quickstart takes you from a test key to a size on your product page, and opens with a For your developer note a brand team can forward.

• ShShopifyNo code: install the app, add the block
• JSWeb SDKOne script tag, any storefront
• ReReactProvider and components, SSR-safe
• iOSiOSSwiftUI and UIKit button
• AnAndroidCompose and Views button
• RNReact NativeThe native button, from JS
• FlFlutterA native platform view
• { }ServerNode.js and Python SDKs

Products

• 01Size guide“Your size: M” next to your size picker, in your own size labels.Web · iOS · Android · Shopify
• 02Fit viewThe garment on the shopper's 3D body: ease in cm, pressure in kPa, per zone.Window · all SDKs
• 03Recommendations APISizes for up to 25 products from your server or a headless storefront.POST /v1/recommendations
• 04Catalog APIProducts, size maps, garment versions and fit groups, synced from your PIM./v1/products · /v1/garments
• 05WebhooksSigned events when a size is recommended or a garment is published.TYS-Signature · HMAC-SHA256
• 06A/B and outcomesA holdout group, orders and returns: size returns with and without TryYourSize.POST /v1/orders · /v1/returns
• 07StudioWhere your team describes garments, maps sizes and gets keys.studio.tryyoursize.com

Building with an AI assistant?

All of these docs as clean Markdown: llms.txt · llms-full.txt ·guide

Read https://docs.tryyoursize.com/llms.txt and the pages it links to. Then add the TryYourSize size guide next to the size picker in my store, using my test publishable key (pk_test_…), and preselect the recommended size without overriding the shopper's own choice.

Copy prompt

Reference

• SDK reference: one page per method, component and event for the Web SDK, React, Node.js, Python, iOS, Android, React Native and Flutter, generated from their source.
• HTTP API reference: every public endpoint, generated from our OpenAPI spec.
• Troubleshooting, API errors and the changelog.

For brand teams

You do not need to read code to get started. Each quickstart opens with a short For your developer note you can forward: what the integration does, how long it takes, and which keys to send. Keys are in Studio → Developers → API keys.