FINESSE

FINESSE is a Los Angeles direct-to-consumer womenswear brand, founded in 2018, that positions itself as an AI-driven fashion house: proprietary demand-prediction models combined with weekly community votes decide which styles get produced and in what quantity, which the company frames as an answer to overproduction and fashion waste. It sells dresses, tops, bottoms, jumpsuits, outerwear, footwear and accessories in sizes XS-3X. FINESSE publishes no developer API program, but its storefront at finesse.us ships a genuine agent surface: a live Universal Commerce Protocol merchant profile at /.well-known/ucp, an unauthenticated MCP endpoint at /api/ucp/mcp exposing 13 catalog, cart, checkout and order tools with full JSON Schema inputs, an /agents.md instruction document advertised through a dedicated agentic-discovery sitemap, a mirroring /llms.txt, and OAuth 2.0 / OpenID Connect metadata for shopper accounts on account.finesse.us.

FINESSE publishes 2 APIs on the APIs.io network. Tagged areas include Company, retail, ecommerce, fashion, and apparel.

FINESSE’s developer surface includes documentation, API reference, getting-started guide, support, engineering blog, signup flow, authentication, and 19 more developer resources.

🌐 Visit website 📡 Source on GitHub
28.8/100 thin ▬ flat Agent 31/100 agent aware Full breakdown ↓
scored 2026-08-17 · rubric v0.11.0
2 APIs 2 MCP Servers
Companyretailecommercefashionappareldirect-to-consumeragentic-commerceucpmcpagent-nativeshopifyconsumer

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-17 · rubric v0.11.0
Composite quality — 28.8/100 · thin
Contract Quality 0.0 / 25
Developer Ergonomics 11.7 / 20
Commercial Clarity 6.8 / 20
Operational Transparency 0.0 / 13
Governance 1.5 / 12
Discoverability 8.7 / 10
Agent readiness — 31/100 · agent aware
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 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
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/finesse: 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 2

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

FINESSE UCP Commerce MCP API

Agent-facing commerce endpoint implementing the Universal Commerce Protocol (version 2026-04-08, with 2026-01-23 also supported) over MCP/JSON-RPC 2.0. Thirteen tools cover cata...

FINESSE Storefront JSON (read-only)

Unauthenticated read-only product endpoints that FINESSE documents for agents in its own agents.md: a paged product feed at /products.json, per-product and per-collection JSON, ...

MCP Servers 2

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

finesse-mcp.yml

MCP SERVER

mcp

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Finesse Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Finesse Rate Limits

0 limits

RATE LIMITS

Security Posture 2

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

Finesse Authentication

0 schemes

SECURITY

Finesse Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Finesse Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Resources

Get Started 3

Portal, sign-up, and the first successful call

GettingStarted
GettingStarted
 SignUp
SignUp
 Login
Login

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

MCPServer
MCPServer
 LLMsTxt
LLMsTxt
 WellKnown
WellKnown
 AgentSkill
AgentSkill

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 ErrorCatalog
ErrorCatalog
 DataModel
DataModel
 Lifecycle
Lifecycle
 Conformance
Conformance

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication
 OAuthScopes
OAuthScopes

Operate 3

Status, limits, changes, and where to get help

Support
Support
 HelpCenter
HelpCenter
 RateLimits
RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy
 Plans
Plans

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Other 1

Properties that don't map to a standard resource type

OpenIDConnect
OpenIDConnect

Source (apis.yml)

apis.yml Raw ↑ 
aid: finesse
name: FINESSE
description: 'FINESSE is a Los Angeles direct-to-consumer womenswear brand, founded in 2018, that positions itself as an AI-driven
  fashion house: proprietary demand-prediction models combined with weekly community votes decide which styles get produced
  and in what quantity, which the company frames as an answer to overproduction and fashion waste. It sells dresses, tops,
  bottoms, jumpsuits, outerwear, footwear and accessories in sizes XS-3X. FINESSE publishes no developer API program, but
  its storefront at finesse.us ships a genuine agent surface: a live Universal Commerce Protocol merchant profile at /.well-known/ucp,
  an unauthenticated MCP endpoint at /api/ucp/mcp exposing 13 catalog, cart, checkout and order tools with full JSON Schema
  inputs, an /agents.md instruction document advertised through a dedicated agentic-discovery sitemap, a mirroring /llms.txt,
  and OAuth 2.0 / OpenID Connect metadata for shopper accounts on account.finesse.us.'
image: https://finesse.us/cdn/shop/files/opt-1.jpg?v=1745528244
url: https://raw.githubusercontent.com/api-evangelist/finesse/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-tier: profiled
x-tier-reason: enrichment
specificationVersion: '0.20'
created: '2026-08-12'
modified: '2026-08-12'
tags:
- Company
- retail
- ecommerce
- fashion
- apparel
- direct-to-consumer
- agentic-commerce
- ucp
- mcp
- agent-native
- shopify
- consumer
apis:
- name: FINESSE UCP Commerce MCP API
  description: Agent-facing commerce endpoint implementing the Universal Commerce Protocol (version 2026-04-08, with 2026-01-23
    also supported) over MCP/JSON-RPC 2.0. Thirteen tools cover catalog search and lookup, product detail, cart create/read/update/cancel,
    checkout create/read/update/complete/ cancel, and order retrieval. tools/list is anonymous; tool calls require a self-asserted
    meta.ucp-agent.profile URI, and payment completion requires contemporaneous human buyer approval. Money is expressed in
    ISO 4217 minor units.
  humanURL: https://finesse.us/agents.md
  baseURL: https://finesse.us/api/ucp/mcp
  tags:
  - agentic-commerce
  - ucp
  - mcp
  - ecommerce
  - retail
  - fashion
  - agent-native
  properties:
  - type: MCPServer
    url: mcp/finesse-mcp.yml
  - type: MCPServer
    url: https://finesse.us/api/ucp/mcp
  - type: Documentation
    url: https://finesse.us/agents.md
  - type: Authentication
    url: authentication/finesse-authentication.yml
  - type: Conventions
    url: conventions/finesse-conventions.yml
  - type: ErrorCatalog
    url: errors/finesse-problem-types.yml
  - type: DataModel
    url: data-model/finesse-data-model.yml
  - type: RateLimits
    url: rate-limits/finesse-rate-limits.yml
- name: FINESSE Storefront JSON (read-only)
  description: 'Unauthenticated read-only product endpoints that FINESSE documents for agents in its own agents.md: a paged
    product feed at /products.json, per-product and per-collection JSON, product search, and a sitemap index. Prices here
    are decimal strings, unlike the minor-unit integers the MCP surface returns. Unversioned, with no published stability
    guarantee. The baseURL is the site root by design and not a marketing placeholder: these endpoints genuinely live at https://finesse.us/products.json
    and https://finesse.us/collections/{handle}/products.json, both verified HTTP 200 on 2026-08-12.'
  humanURL: https://finesse.us/agents.md
  baseURL: https://finesse.us/
  tags:
  - ecommerce
  - retail
  - fashion
  - catalog
  - agent-native
  properties:
  - type: Documentation
    url: https://finesse.us/agents.md
  - type: DataModel
    url: data-model/finesse-data-model.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/finesse-domain-security.yml
- type: Website
  url: https://finesse.us/
- type: Documentation
  url: https://finesse.us/agents.md
- type: APIReference
  url: https://finesse.us/agents.md
- type: GettingStarted
  url: https://finesse.us/agents.md
- type: Support
  url: https://finesse.us/pages/contact
- type: HelpCenter
  url: https://finesse.us/pages/faq
- type: Blog
  url: https://finesse.us/blogs/news
- type: SignUp
  url: https://finesse.us/account/register
- type: Login
  url: https://finesse.us/account/login
- type: TermsOfService
  url: https://finesse.us/policies/terms-of-service
- type: PrivacyPolicy
  url: https://finesse.us/policies/privacy-policy
- type: MCPServer
  url: mcp/finesse-mcp.yml
- type: LLMsTxt
  url: llms/finesse-llms.txt
- type: WellKnown
  url: well-known/finesse-well-known.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Authentication
  url: authentication/finesse-authentication.yml
- type: OAuthScopes
  url: scopes/finesse-scopes.yml
- type: OpenIDConnect
  url: well-known/finesse-openid-configuration.json
- type: Conventions
  url: conventions/finesse-conventions.yml
- type: ErrorCatalog
  url: errors/finesse-problem-types.yml
- type: DataModel
  url: data-model/finesse-data-model.yml
- type: Lifecycle
  url: lifecycle/finesse-lifecycle.yml
- type: Conformance
  url: conformance/finesse-conformance.yml
- type: RateLimits
  url: rate-limits/finesse-rate-limits.yml
- type: Plans
  url: plans/finesse-plans-pricing.yml
x-enrichment:
  date: '2026-08-12'
  status: enriched
  artifacts_added: 22
  pass: local-v1