Ubras

Ubras is a Chinese direct-to-consumer intimate apparel brand best known for popularizing sizeless (one-size) wireless bras and skin-layer basics. It sells through its Chinese official site at www.ubras.cn and an international Shopify storefront at ubras.com. The international store publishes a genuinely agent-ready commerce surface: a Universal Commerce Protocol (UCP) merchant profile at /.well-known/ucp, live MCP endpoints for catalog search, cart, and buyer-approved checkout, llms.txt and agents.md agent instructions, and Shopify customer-accounts OIDC discovery. Ubras is a portfolio company of Hongshan (Sequoia Capital China).

Ubras publishes 1 API on the APIs.io network. Tagged areas include Company, Consumer, Retail, E-Commerce, and Apparel.

Ubras’ developer surface includes documentation, support, engineering blog, authentication, and 10 more developer resources.

🌐 Visit website 📡 Source on GitHub

21.0/100 emerging ▬ flat Agent 20/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

1 APIs 1 MCP Servers

Company Consumer Retail E-Commerce ApparelIntimate ApparelDirect to Consumer Agentic Commerce

Kin Score

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

Composite quality — 21.0/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 5.7 / 20

Access Clarity 5.5 / 20

Operational Transparency 0.0 / 13

Contract Governance 2.2 / 12

Discoverability 7.6 / 10

Agent readiness — 20/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 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 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 5 / 5

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.

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/ubras: 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 →

APIs 1

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

Ubras Storefront Agent Commerce (UCP + MCP)

Agent-facing commerce surface of the ubras.com Shopify storefront: a live storefront MCP endpoint (catalog search, cart, product details, policy FAQs), a Universal Commerce Prot...

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Ubras MCP Server

Ubras's international Shopify storefront (ubras.com) exposes two live, provider-published MCP surfaces. (1) The Shopify storefront MCP at https://ubras.com/api/mcp answers JSON-...

MCP SERVER

Security Posture 2

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

Ubras Authentication

openIdConnect · 1 scheme

SECURITY

Ubras Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

Login

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

MCPServer

MCPServer

WellKnown

WellKnown

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Conformance

Conformance

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

TermsOfService

TermsOfService

Company 3

The organization behind the API

Website

Website

Website

Website

Blog

Blog

Source (apis.yml)

aid: ubras
name: Ubras
description: 'Ubras is a Chinese direct-to-consumer intimate apparel brand best known for popularizing sizeless (one-size)
  wireless bras and skin-layer basics. It sells through its Chinese official site at www.ubras.cn and an international Shopify
  storefront at ubras.com. The international store publishes a genuinely agent-ready commerce surface: a Universal Commerce
  Protocol (UCP) merchant profile at /.well-known/ucp, live MCP endpoints for catalog search, cart, and buyer-approved checkout,
  llms.txt and agents.md agent instructions, and Shopify customer-accounts OIDC discovery. Ubras is a portfolio company of
  Hongshan (Sequoia Capital China).'
url: https://raw.githubusercontent.com/api-evangelist/ubras/refs/heads/main/apis.yml
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:
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
image: https://ubras.com/cdn/shop/files/20220928-174018.jpg?v=1664358034
x-type: company
x-source: vc-portfolio
x-backed-by:
- hongshan
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Consumer
- Retail
- E-Commerce
- Apparel
- Intimate Apparel
- Direct to Consumer
- Agentic Commerce
tags_raw:
- Company
- Consumer
- Retail
- eCommerce
- Apparel
- Intimate Apparel
- Direct-to-Consumer
- Agentic Commerce
apis:
- name: Ubras Storefront Agent Commerce (UCP + MCP)
  description: 'Agent-facing commerce surface of the ubras.com Shopify storefront: a live storefront MCP endpoint (catalog
    search, cart, product details, policy FAQs), a Universal Commerce Protocol shopping service with buyer-approved checkout,
    and anonymous read-only product/collection JSON endpoints.'
  humanURL: https://ubras.com/agents.md
  baseURL: https://ubras.com/api/mcp
  tags:
  - Commerce
  - MCP
  - UCP
  - Agents
  - Product
  tags_raw:
  - Commerce
  - MCP
  - UCP
  - Agents
  - Products
  properties:
  - type: Documentation
    url: https://ubras.com/agents.md
  - type: MCPServer
    url: mcp/ubras-mcp.yml
common:
- type: DomainSecurity
  url: security/ubras-domain-security.yml
- type: Website
  url: https://ubras.com
- type: Website
  url: https://www.ubras.cn
- type: Documentation
  url: https://ubras.com/agents.md
- type: Login
  url: https://ubras.com/account/login
- type: Support
  url: https://ubras.com/pages/contact-us
- type: Blog
  url: https://ubras.com/blogs/news
- type: PrivacyPolicy
  url: https://ubras.com/policies/privacy-policy
- type: TermsOfService
  url: https://ubras.com/policies/terms-of-service
- type: LLMsTxt
  url: llms/ubras-llms.txt
- type: MCPServer
  url: mcp/ubras-mcp.yml
- type: WellKnown
  url: well-known/ubras-well-known.yml
- type: Authentication
  url: authentication/ubras-authentication.yml
- type: Conformance
  url: conformance/ubras-conformance.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 10
  pass: local-v1

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/ubras"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/ubras/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/ubras/evidence"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.