Willie's Reserve

Willie's Reserve is the cannabis brand founded around Willie Nelson's name and legacy, selling premium cannabis products direct to consumers from williesreserve.com. It is a consumer products company rather than a software vendor, and it publishes no developer program, no OpenAPI and no SDKs. It does, however, operate a real and unusually complete agent commerce surface: a live, anonymously reachable Model Context Protocol endpoint at /api/ucp/mcp implementing the Universal Commerce Protocol shopping service, a machine-readable UCP merchant profile at /.well-known/ucp, an /agents.md instruction document mirrored at /llms.txt, a dedicated agentic-discovery sitemap, and robots.txt policy language requiring human approval before any agent completes a payment.

Willie’s Reserve is listed with 1 API on the APIs.io network. Tagged areas include Company, Cannabis, Consumer Products, Retail, and E-Commerce.

Willie’s Reserve’s developer surface includes documentation, authentication, support, engineering blog, and 16 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

23.9/100 emerging ▬ flat Agent 21/100 agent aware Front door AI 1/6 silent Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessOpen

1 API 1 MCP Servers 1 Agent Skills

Company Cannabis Consumer Products Retail E-Commerce Agentic Commerce MCP Universal Commerce Protocol Shopify

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 23.9/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 6.1 / 17

Access Clarity 3.6 / 17

Operational Transparency 0.0 / 11

Contract Governance 1.9 / 10

Discoverability 6.4 / 9

Regulatory Posture 5.1 / 15

Agent readiness — 21/100 · 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 0 / 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 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 5 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

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/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document

6 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 0.0 — up to +25.0 composite points
Access Clarity scores 21.1 — up to +15.8 composite points
Operational Transparency scores 0.0 — up to +13.0 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/willie-s-reserve/apis.yml: open an issue on github.com/api-evangelist/willie-s-reserve to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 3

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Model Context Protocol (MCP)

measured — observed by APIs.io (platform)

Agent Skills

measured — observed by APIs.io (published)

Universal Commerce Protocol (UCP)

measured — observed by APIs.io (shopify)

APIs 1

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

Willie's Reserve Commerce Agent API (UCP/MCP)

A live Model Context Protocol server implementing the Universal Commerce Protocol shopping service for the Willie's Reserve store. Thirteen tools cover catalog search and lookup...

MCP Servers 1

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

Willie's Reserve Commerce MCP Server (UCP)

Willie's Reserve serves a live, anonymously reachable Model Context Protocol server at https://williesreserve.com/api/ucp/mcp implementing the Universal Commerce Protocol (UCP) ...

MCP SERVER

Agent Skills 1

Packaged agent skills for driving this provider's APIs from an AI assistant.

willie-s-reserve-agent-purchase

AGENT SKILL

Willie's Reserve API pricing

Pricing Plans 1

Published pricing tiers and plan structures.

Willie S Reserve Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Willie S Reserve Rate Limits

0 limits

RATE LIMITS

Security Posture 2

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

Willie S Reserve Authentication

0 schemes

SECURITY

Willie S Reserve Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Willie S Reserve Scopes

4 scopes

SCOPES

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

MCPServer

AgentSkill

LLMsTxt

WellKnown

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conformance

Conventions

Idempotency

DataModel

Lifecycle

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

OAuthScopes

OAuthScopes

Operate 2

Status, limits, changes, and where to get help

RateLimits

RateLimits

Support

Support

Commercial 3

Pricing, plans, and the legal terms of use

Plans

Plans

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: willie-s-reserve
name: Willie's Reserve
description: 'Willie''s Reserve is the cannabis brand founded around Willie Nelson''s name and legacy, selling premium cannabis
  products direct to consumers from williesreserve.com. It is a consumer products company rather than a software vendor, and
  it publishes no developer program, no OpenAPI and no SDKs. It does, however, operate a real and unusually complete agent
  commerce surface: a live, anonymously reachable Model Context Protocol endpoint at /api/ucp/mcp implementing the Universal
  Commerce Protocol shopping service, a machine-readable UCP merchant profile at /.well-known/ucp, an /agents.md instruction
  document mirrored at /llms.txt, a dedicated agentic-discovery sitemap, and robots.txt policy language requiring human approval
  before any agent completes a payment.'
accessModel:
  pricing: unknown
  onboarding: open
  trial: false
  try_now: false
  public: true
  gated: none
  gated_source:
  - onboarding
  label: Open access
  confidence: medium
  source:
  - authentication
  - scopes
  - rate-limits
  - security
  generated: '2026-11-06'
  method: derived
image: https://williesreserve.com/cdn/shop/files/Willies_Reserve_Logo_Registered_3b1bc386-c7d8-4a5e-bba7-06a4c76be9e4.png?v=1773762321
url: https://raw.githubusercontent.com/api-evangelist/willie-s-reserve/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-tier: profiled
x-tier-reason: enrichment
specificationVersion: '0.20'
created: '2026-09-04'
modified: '2026-09-04'
tags:
- Company
- Cannabis
- Consumer Products
- Retail
- E-Commerce
- Agentic Commerce
- MCP
- Universal Commerce Protocol
- Shopify
tags_raw:
- Company
- Cannabis
- Consumer Products
- Retail
- Ecommerce
- Agent Commerce
- Model Context Protocol
- Universal Commerce Protocol
- Shopify
apis:
- name: Willie's Reserve Commerce Agent API (UCP/MCP)
  description: A live Model Context Protocol server implementing the Universal Commerce Protocol shopping service for the
    Willie's Reserve store. Thirteen tools cover catalog search and lookup, cart lifecycle, checkout lifecycle and order retrieval.
    Discovery and tools/list are anonymous; payment requires a buyer-approved instrument and explicit human approval at completion.
  humanURL: https://williesreserve.com/agents.md
  baseURL: https://williesreserve.com/api/ucp/mcp
  image: https://williesreserve.com/cdn/shop/files/Willies_Reserve_Logo_Registered_3b1bc386-c7d8-4a5e-bba7-06a4c76be9e4.png?v=1773762321
  tags:
  - Agentic Commerce
  - MCP
  - Universal Commerce Protocol
  - E-Commerce
  - Catalog
  - Cart
  - Checkout
  - Order
  tags_raw:
  - Agent Commerce
  - Model Context Protocol
  - Universal Commerce Protocol
  - Ecommerce
  - Catalog
  - Cart
  - Checkout
  - Orders
  properties:
  - type: MCPServer
    url: mcp/willie-s-reserve-mcp.yml
  - type: Documentation
    url: https://williesreserve.com/agents.md
  - type: Conventions
    url: conventions/willie-s-reserve-conventions.yml
  - type: Idempotency
    url: conventions/willie-s-reserve-conventions.yml
  - type: DataModel
    url: data-model/willie-s-reserve-data-model.yml
  - type: RateLimits
    url: rate-limits/willie-s-reserve-rate-limits.yml
  x-surface: platform-generated
  x-platform: shopify
  x-platform-surface: ucp
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/willie-s-reserve-domain-security.yml
- type: Website
  url: https://williesreserve.com/
- type: Documentation
  url: https://williesreserve.com/agents.md
- type: MCPServer
  url: mcp/willie-s-reserve-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/willie-s-reserve-llms.txt
- type: WellKnown
  url: well-known/willie-s-reserve-well-known.yml
- type: Authentication
  url: authentication/willie-s-reserve-authentication.yml
- type: OAuthScopes
  url: scopes/willie-s-reserve-scopes.yml
- type: Conformance
  url: conformance/willie-s-reserve-conformance.yml
- type: Conventions
  url: conventions/willie-s-reserve-conventions.yml
- type: Idempotency
  url: conventions/willie-s-reserve-conventions.yml
- type: DataModel
  url: data-model/willie-s-reserve-data-model.yml
- type: Lifecycle
  url: lifecycle/willie-s-reserve-lifecycle.yml
- type: RateLimits
  url: rate-limits/willie-s-reserve-rate-limits.yml
- type: Plans
  url: plans/willie-s-reserve-plans-pricing.yml
- type: Support
  url: https://williesreserve.com/pages/contact
- type: Blog
  url: https://williesreserve.com/blogs/news
- type: TermsOfService
  url: https://williesreserve.com/policies/terms-of-service
- type: PrivacyPolicy
  url: https://williesreserve.com/policies/privacy-policy
position: Producing
x-enrichment:
  date: '2026-09-04'
  status: enriched
  artifacts_added: 19
  pass: local-v3

Willie's Reserve API — frequently asked questions

Does Willie's Reserve have an API?

Yes. APIs.io lists 1 API from Willie's Reserve, including Willie's Reserve Commerce Agent API (UCP/MCP).

How do I authenticate with the Willie's Reserve API?

Willie's Reserve documents its authentication (0 schemes). The details are profiled on APIs.io as Willie S Reserve Authentication.

Does Willie's Reserve have an MCP server?

Yes. APIs.io lists 1 MCP server for Willie's Reserve: Willie's Reserve serves a live, anonymously reachable Model Context Protocol server at https://williesreserve.com/api/ucp/mcp implementing the Universal Commerce Protocol (UCP) shopping service. A too

Is the Willie's Reserve API ready for AI agents?

Willie's Reserve has a Kin Score of 23.9 out of 100 (emerging) and an Agent Readiness score of 20.8 (agent-aware), scored by API Evangelist on 2026-11-06.

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