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, eCommerce, and Apparel.

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

🌐 Visit website 📡 Source on GitHub

23.1/100 emerging ▬ flat Agent 25/100 agent aware Full breakdown ↓
scored 2026-07-27 · rubric v0.5

AccessSelf serve

1 APIs 1 MCP Servers

CompanyConsumerRetaileCommerceApparelIntimate ApparelDirect-to-ConsumerAgentic Commerce

Kin Score

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

Composite quality — 23.1/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 7.0 / 20

Commercial Clarity 6.8 / 20

Operational Transparency 0.0 / 13

Governance 0.0 / 12

Discoverability 9.3 / 10

Agent readiness — 25/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

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 4 / 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/ubras: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

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.

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
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  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: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- 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
  - 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