UrbanStems

UrbanStems is a direct-to-consumer flower and gifting company founded on Valentine's Day 2014 in Washington, DC, selling modern bouquets, plants, gifts and centerpieces with same-day delivery in major US cities and next-day delivery nationwide, sourced through a vertically integrated supply chain that buys direct from Rainforest Alliance Certified farms. Its storefront runs on Shopify at urbanstems.com, and the company exposes a genuine agent-facing commerce surface rather than a developer API program: a published /llms.txt and /agents.md, a /.well-known/ucp merchant profile implementing the Universal Commerce Protocol (UCP 2026-08-25), and a live unauthenticated Model Context Protocol endpoint offering thirteen catalog, cart, checkout and order tools that lets an agent search the catalog and drive a buyer-approved purchase end to end.

UrbanStems publishes 2 APIs on the APIs.io network. Tagged areas include Company, Commerce, E-Commerce, Retail, and Flowers.

UrbanStems’ developer surface includes documentation, support, engineering blog, signup flow, authentication, and 22 more developer resources.

🌐 Visit website 📡 Source on GitHub
24.9/100 emerging ▬ flat Agent 22/100 agent aware Front door AI 1/6 silent Full breakdown ↓
scored 2026-09-25 · rubric v0.23.0
2 APIs 1 MCP Servers
CompanyCommerceE-CommerceRetailFlowersGiftingAgentic CommerceUniversal Commerce ProtocolMCPShopifyDirect to Consumer

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-25 · rubric v0.23.0
Composite quality — 24.9/100 · emerging
Contract Quality 0.0 / 21
Developer Ergonomics 5.2 / 17
Access Clarity 5.8 / 17
Operational Transparency 0.3 / 11
Contract Governance 1.9 / 10
Discoverability 5.7 / 9
Regulatory Posture 5.1 / 15
Agent readiness — 22/100 · 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 9 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 5 / 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 5 / 5
Registration Without a Human 0 / 6
Agentic Commerce Well-Known Document 5 / 5
Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.
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.
The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
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/urbanstems: 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 2

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

UrbanStems Commerce MCP API

The agent-facing commerce surface for the UrbanStems store, implementing the Universal Commerce Protocol (dev.ucp.shopping) over MCP. Thirteen tools cover catalog search and loo...

UrbanStems Storefront JSON API

The read-only storefront JSON endpoints UrbanStems documents for agents in its own /llms.txt and /agents.md — product JSON at /products/{handle}.json, collection product listing...

MCP Servers 1

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

UrbanStems Model Context Protocol servers

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Urbanstems Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Urbanstems Rate Limits

0 limits

RATE LIMITS

Security Posture 2

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

Urbanstems Authentication

4 schemes

SECURITY

Urbanstems Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Urbanstems Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Resources

Get Started 2

Portal, sign-up, and the first successful call

SignUp
SignUp
 Login
Login

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

MCPServer
MCPServer
 LLMsTxt
LLMsTxt
 WellKnown
WellKnown
 AgentSkill
AgentSkill

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 Idempotency
Idempotency
 ErrorCatalog
ErrorCatalog
 Lifecycle
Lifecycle
 Conformance
Conformance
 DataModel
DataModel

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization
 ToolCrosswalk
ToolCrosswalk
 Packages
Packages

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication
 OAuthScopes
OAuthScopes

Operate 2

Status, limits, changes, and where to get help

Support
Support
 RateLimits
RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy
 Plans
Plans

Company 3

The organization behind the API

Website
Website
 Blog
Blog
 BlogRSS
BlogRSS

Source (apis.yml)

apis.yml Raw ↑ 
aid: urbanstems
name: UrbanStems
description: 'UrbanStems is a direct-to-consumer flower and gifting company founded on Valentine''s Day 2014 in Washington,
  DC, selling modern bouquets, plants, gifts and centerpieces with same-day delivery in major US cities and next-day delivery
  nationwide, sourced through a vertically integrated supply chain that buys direct from Rainforest Alliance Certified farms.
  Its storefront runs on Shopify at urbanstems.com, and the company exposes a genuine agent-facing commerce surface rather
  than a developer API program: a published /llms.txt and /agents.md, a /.well-known/ucp merchant profile implementing the
  Universal Commerce Protocol (UCP 2026-08-25), and a live unauthenticated Model Context Protocol endpoint offering thirteen
  catalog, cart, checkout and order tools that lets an agent search the catalog and drive a buyer-approved purchase end to
  end.'
image: https://urbanstems.com/cdn/shop/t/637/assets/organization-image_large.png?v=133620255960512887901788204824
url: https://raw.githubusercontent.com/api-evangelist/urbanstems/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
specificationVersion: '0.20'
created: '2026-09-02'
modified: '2026-09-02'
tags:
- Company
- Commerce
- E-Commerce
- Retail
- Flowers
- Gifting
- Agentic Commerce
- Universal Commerce Protocol
- MCP
- Shopify
- Direct to Consumer
tags_raw:
- Company
- Commerce
- E-Commerce
- Retail
- Flowers
- Gifting
- Agentic Commerce
- Universal Commerce Protocol
- Model Context Protocol
- Shopify
- Direct to Consumer
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- aid: urbanstems:urbanstems-commerce-mcp-api
  name: UrbanStems Commerce MCP API
  description: The agent-facing commerce surface for the UrbanStems store, implementing the Universal Commerce Protocol (dev.ucp.shopping)
    over MCP. Thirteen tools cover catalog search and lookup, product detail, cart create/update/cancel, checkout create/update/complete/cancel,
    and order retrieval. Anonymous — no API key or OAuth token is required to list tools or search the catalog — but completing
    a checkout requires an idempotency key and contemporaneous buyer approval of payment.
  humanURL: https://urbanstems.com/agents.md
  baseURL: https://274513-24.myshopify.com/api/ucp/mcp
  tags:
  - Commerce
  - Catalog
  - Cart
  - Checkout
  - Order
  - Agentic Commerce
  tags_raw:
  - Commerce
  - Catalog
  - Cart
  - Checkout
  - Orders
  - Agentic Commerce
  properties:
  - type: Documentation
    url: https://urbanstems.com/agents.md
  - type: MCPServer
    url: mcp/urbanstems-mcp.yml
  - type: ToolCrosswalk
    url: mcp/urbanstems-tool-crosswalk.yml
  - type: WellKnown
    url: well-known/urbanstems-ucp.json
  - type: Authentication
    url: authentication/urbanstems-authentication.yml
  - type: Conventions
    url: conventions/urbanstems-conventions.yml
  - type: Idempotency
    url: conventions/urbanstems-conventions.yml
  - type: DataModel
    url: data-model/urbanstems-data-model.yml
  - type: ErrorCatalog
    url: errors/urbanstems-problem-types.yml
  - type: RateLimits
    url: rate-limits/urbanstems-rate-limits.yml
  x-surface: platform-generated
  x-platform: shopify
  x-platform-surface: ucp
- aid: urbanstems:urbanstems-storefront-json-api
  name: UrbanStems Storefront JSON API
  description: The read-only storefront JSON endpoints UrbanStems documents for agents in its own /llms.txt and /agents.md
    — product JSON at /products/{handle}.json, collection product listings at /collections/{handle}/products.json, and the
    sitemap set including a dedicated agentic-discovery sitemap. No authentication is required. These are Shopify Online Store
    routes served on the UrbanStems domain and named by UrbanStems in its own agent instructions.
  humanURL: https://urbanstems.com/llms.txt
  x-base-note: The site root IS the API base for this entry, not a marketing URL standing in for one. Shopify Online Store
    JSON routes are served off the storefront origin — https://urbanstems.com/products/{handle}.json returned HTTP 200 application/json
    on 2026-09-02 — and UrbanStems names exactly these paths in its own /llms.txt. The other api entry deliberately carries
    a different host (274513-24.myshopify.com), which is where the MCP endpoint actually answers; the two bases disagree because
    the two surfaces genuinely live on different hosts.
  tags:
  - Product
  - Collection
  - Catalog
  - Sitemap
  tags_raw:
  - Products
  - Collections
  - Catalog
  - Sitemap
  properties:
  - type: Documentation
    url: https://urbanstems.com/llms.txt
  - type: LLMsTxt
    url: llms/urbanstems-llms.txt
  x-surface: platform-generated
  x-platform: shopify
  x-platform-surface: storefront-json
common:
- type: DomainSecurity
  url: security/urbanstems-domain-security.yml
- type: Website
  url: https://urbanstems.com/
- type: Documentation
  url: https://urbanstems.com/agents.md
- type: Support
  url: https://help.urbanstems.com/en-US
- type: Blog
  url: https://urbanstems.com/blogs/news
- type: BlogRSS
  url: https://urbanstems.com/blogs/news.atom
- type: SignUp
  url: https://urbanstems.com/account/register
- type: Login
  url: https://urbanstems.com/account/login
- type: TermsOfService
  url: https://urbanstems.com/policies/terms-of-service
- type: PrivacyPolicy
  url: https://urbanstems.com/policies/privacy-policy
- type: GitHubOrganization
  url: https://github.com/urbanstems
- type: MCPServer
  url: mcp/urbanstems-mcp.yml
- type: ToolCrosswalk
  url: mcp/urbanstems-tool-crosswalk.yml
- type: LLMsTxt
  url: llms/urbanstems-llms.txt
- type: WellKnown
  url: well-known/urbanstems-well-known.yml
- type: Authentication
  url: authentication/urbanstems-authentication.yml
- type: OAuthScopes
  url: scopes/urbanstems-scopes.yml
- type: Conventions
  url: conventions/urbanstems-conventions.yml
- type: Idempotency
  url: conventions/urbanstems-conventions.yml
- type: ErrorCatalog
  url: errors/urbanstems-problem-types.yml
- type: RateLimits
  url: rate-limits/urbanstems-rate-limits.yml
- type: Plans
  url: plans/urbanstems-plans-pricing.yml
- type: Lifecycle
  url: lifecycle/urbanstems-lifecycle.yml
- type: Conformance
  url: conformance/urbanstems-conformance.yml
- type: DataModel
  url: data-model/urbanstems-data-model.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Packages
  url: packages/urbanstems-packages.yml
x-enrichment:
  date: '2026-09-02'
  status: enriched
  artifacts_added: 26
  pass: local-v1
x-coverage:
  state: covered

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