Cometeer

Cometeer is a Gloucester, Massachusetts coffee company, founded in 2015 by Matthew Roberts and Douglas Hoon, that brews specialty coffee at high extraction and then flash-freezes it with liquid nitrogen into single-serve capsules shipped direct to consumers by subscription. Coffees are roasted by third-wave partners including Counter Culture, Intelligentsia, Onyx, Square Mile, Equator and George Howell. Cometeer publishes no developer API, but its Shopify-hosted storefront exposes a substantial machine-readable agent surface: an /llms.txt agent instruction set, OpenID Connect and RFC 8414 authorization-server metadata on its own apex host, and a live Universal Commerce Protocol (UCP) merchant profile advertising an MCP endpoint for agent-driven cart, checkout and order flows.

Cometeer publishes 4 API contracts indexed on the APIs.io network, including Collections API, Products API, Search API, and 1 more. Tagged areas include Company, Coffee, Food and Beverage, E-Commerce, and Direct to Consumer.

The Cometeer catalog on APIs.io includes 1 Spectral governance ruleset.

Cometeer’s developer surface includes documentation, support, engineering blog, pricing, signup flow, authentication, and 17 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

31.2/100 thin ▬ flat Agent 35/100 agent ready Front door AI 1/6 silent Heartbeat 72/100 slowing saas Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

1 published contract 1 MCP Servers 2 Agent Skills

Company Coffee Food and Beverage E-Commerce Direct to Consumer Retail Subscription Agentic Commerce Shopify MCP

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 31.2/100 · thin

Contract Quality 2.8 / 21

Developer Ergonomics 5.2 / 17

Access Clarity 8.0 / 17

Operational Transparency 0.0 / 11

Contract Governance 3.2 / 10

Discoverability 5.7 / 9

Regulatory Posture 4.3 / 15

Agent readiness — 35/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 6 / 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 0 / 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 4 / 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 does not apply to this provider. The published contracts declare no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's denominator entirely — not scored zero. A reference or data API is not deficient for being unable to upsert.

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):

Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented) Ask about this →
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks Ask about this →

3 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 13.1 — up to +21.7 composite points Ask about this →
Developer Ergonomics scores 30.4 — up to +13.9 composite points Ask about this →
Operational Transparency scores 0.0 — up to +13.0 composite points Ask about this →

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.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

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/cometeer/apis.yml: open an issue on github.com/api-evangelist/cometeer 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 →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Franchise Registries (registered franchisors, IFA, POS franchise partners)	undeclared	-	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 5

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)

OpenAPI

measured — observed by APIs.io (published)

OAuth 2.0

measured — observed by APIs.io (declared)

OpenID Connect

measured — observed by APIs.io (declared)

Universal Commerce Protocol (UCP)

measured — observed by APIs.io (shopify)

APIs 4

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

Cometeer UCP Commerce (MCP)

Cometeer's Universal Commerce Protocol shopping service, exposed over MCP (JSON-RPC 2.0 via HTTP POST) at /api/ucp/mcp and advertised from /.well-known/ucp. Thirteen tools cover...

Cometeer Collections API

Collection (category) browsing

Cometeer Products API

Product catalog browsing

Cometeer Search API

Storefront search

Open Collections 1

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Cometeer Storefront (read-only agent surface)

OPEN COLLECTION

MCP Servers 1

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

Cometeer MCP Server

Remote MCP server at cometeer.com over HTTP; 13 tools listed.

MCP SERVER

Agent Skills 2

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

Buy Cometeer coffee as an agent (UCP)

AGENT SKILL

Browse the Cometeer coffee catalog

AGENT SKILL

Terms of Service 1

What its API terms permit and prohibit, quoted from its own page.

Cometeer

4 quoted statements, read from Cometeer's own page on 2026-11-09.

TERMS

Privacy & Data 1

Its role, the data it processes, retention and transfers, quoted from its own privacy page.

Cometeer

19 quoted statements, read from Cometeer's own page on 2026-11-09.

PRIVACY

Eligibility 1

Who may sign up and where, quoted from its own terms.

Cometeer

2 quoted statements, read from Cometeer's own page on 2026-11-09.

ELIGIBILITY

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

Cometeer API Rules

55 rules · 52 error-severity 1 warn-severity 2 info-severity

SPECTRAL

Security Posture 2

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

Cometeer Authentication

none/openIdConnect/oauth2 · 3 schemes

SECURITY

Cometeer Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Cometeer Scopes

4 scopes · authorizationCode

4 scopes

SCOPES

Resources

Get Started 1

Portal, sign-up, and the first successful call

SignUp

SignUp

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

WellKnown

WellKnown

AgentSkill

AgentSkill

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conformance

Lifecycle

Conventions

ErrorCatalog

DataModel

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

OAuthScopes

OAuthScopes

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 4

Pricing, plans, and the legal terms of use

Pricing

TermsOfService

PrivacyPolicy

UsageTerms

Company 3

The organization behind the API

BlogRSS

BlogRSS

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

DataProcessing

DataProcessing

Eligibility

Eligibility

Source (apis.yml)

aid: cometeer
name: Cometeer
x-enrichment:
  date: '2026-08-01'
  status: enriched
  artifacts_added: 19
  pass: local-v1
description: 'Cometeer is a Gloucester, Massachusetts coffee company, founded in 2015 by Matthew Roberts and Douglas Hoon,
  that brews specialty coffee at high extraction and then flash-freezes it with liquid nitrogen into single-serve capsules
  shipped direct to consumers by subscription. Coffees are roasted by third-wave partners including Counter Culture, Intelligentsia,
  Onyx, Square Mile, Equator and George Howell. Cometeer publishes no developer API, but its Shopify-hosted storefront exposes
  a substantial machine-readable agent surface: an /llms.txt agent instruction set, OpenID Connect and RFC 8414 authorization-server
  metadata on its own apex host, and a live Universal Commerce Protocol (UCP) merchant profile advertising an MCP endpoint
  for agent-driven cart, checkout and order flows.'
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - 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
  - scopes
  - security
  generated: '2026-11-13'
  method: derived
image: https://cometeer.com/cdn/shop/files/Cometeer01528.png?crop=center&height=480&v=1759521644&width=480
url: https://raw.githubusercontent.com/api-evangelist/cometeer/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-tier: profiled
x-tier-reason: enrichment-pass
specificationVersion: '0.23'
created: '2026-08-01'
modified: '2026-10-06'
tags:
- Company
- Coffee
- Food and Beverage
- E-Commerce
- Direct to Consumer
- Retail
- Subscription
- Agentic Commerce
- Shopify
- MCP
tags_raw:
- Company
- Coffee
- Food and Beverage
- E-Commerce
- Direct to Consumer
- Retail
- Subscription
- Agentic Commerce
- Shopify
- Model Context Protocol
apis:
- aid: cometeer:ucp-commerce
  name: Cometeer UCP Commerce (MCP)
  description: Cometeer's Universal Commerce Protocol shopping service, exposed over MCP (JSON-RPC 2.0 via HTTP POST) at /api/ucp/mcp
    and advertised from /.well-known/ucp. Thirteen tools cover catalog search and lookup, cart, checkout, fulfillment, discount
    and order. Calls require a resolvable UCP agent profile URI, and completing payment requires contemporaneous human buyer
    approval.
  humanURL: https://cometeer.com/llms.txt
  baseURL: https://cometeer.com/api/ucp/mcp
  tags:
  - Agentic Commerce
  - MCP
  - Checkout
  tags_raw:
  - Agentic Commerce
  - Model Context Protocol
  - Checkout
  properties:
  - type: MCPServer
    url: mcp/cometeer-mcp.yml
  - type: ToolCrosswalk
    url: mcp/cometeer-tool-crosswalk.yml
  x-surface: platform-generated
  x-platform: shopify
  x-platform-surface: ucp
- aid: cometeer:cometeer-collections-api
  name: Cometeer Collections API
  description: Collection (category) browsing
  humanURL: https://cometeer.com/llms.txt
  tags:
  - Collection
  tags_raw:
  - Collections
  properties:
  - type: OpenAPI
    url: openapi/cometeer-collections-api-openapi.yml
  - type: LLMsTxt
    url: llms/cometeer-llms.txt
- aid: cometeer:cometeer-products-api
  name: Cometeer Products API
  description: Product catalog browsing
  humanURL: https://cometeer.com/llms.txt
  tags:
  - Product
  tags_raw:
  - Products
  properties:
  - type: OpenAPI
    url: openapi/cometeer-products-api-openapi.yml
  - type: LLMsTxt
    url: llms/cometeer-llms.txt
- aid: cometeer:cometeer-search-api
  name: Cometeer Search API
  description: Storefront search
  humanURL: https://cometeer.com/llms.txt
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/cometeer-search-api-openapi.yml
  - type: LLMsTxt
    url: llms/cometeer-llms.txt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- url: https://cometeer.com/blogs/tasting-notes.atom
  type: BlogRSS
- type: DomainSecurity
  url: security/cometeer-domain-security.yml
- type: Website
  url: https://cometeer.com/
- type: Documentation
  url: https://cometeer.com/agents.md
- type: LLMsTxt
  url: llms/cometeer-llms.txt
- type: Support
  url: https://help.cometeer.com/
- type: Blog
  url: https://cometeer.com/blogs/tasting-notes
- type: Pricing
  url: https://cometeer.com/pages/shop-all-coffee
- type: SignUp
  url: https://account.cometeer.com/account
- type: TermsOfService
  url: https://cometeer.com/policies/terms-of-service
- type: PrivacyPolicy
  url: https://cometeer.com/policies/privacy-policy
- type: WellKnown
  url: well-known/cometeer-well-known.yml
- type: Authentication
  url: authentication/cometeer-authentication.yml
- type: OAuthScopes
  url: scopes/cometeer-scopes.yml
- type: Conformance
  url: conformance/cometeer-conformance.yml
- type: Lifecycle
  url: lifecycle/cometeer-lifecycle.yml
- type: Conventions
  url: conventions/cometeer-conventions.yml
- type: ErrorCatalog
  url: errors/cometeer-problem-types.yml
- type: DataModel
  url: data-model/cometeer-data-model.yml
- type: AgentSkill
  url: skills/_index.yml
- type: UsageTerms
  url: terms/cometeer-terms-of-service.yml
- type: DataProcessing
  url: privacy/cometeer-privacy-policy.yml
- type: Eligibility
  url: eligibility/cometeer-eligibility.yml

Cometeer API — frequently asked questions

Does Cometeer have an API?

Yes. APIs.io lists 4 APIs from Cometeer, including Cometeer UCP Commerce (MCP), Cometeer Collections API and Cometeer Products API, and 1 more.

Is there an OpenAPI specification for the Cometeer API?

Yes. APIs.io indexes 3 OpenAPI specifications for Cometeer, each linked for download from this page.

How do I authenticate with the Cometeer API?

Cometeer documents its authentication (none/openIdConnect/oauth2 · 3 schemes). The details are profiled on APIs.io as Cometeer Authentication.

Does Cometeer have an MCP server?

Yes. APIs.io lists 1 MCP server for Cometeer: Remote MCP server at cometeer.com over HTTP; 13 tools listed.

Is the Cometeer API ready for AI agents?

Cometeer has a Kin Score of 31.2 out of 100 (thin) and an Agent Readiness score of 34.6 (agent-ready), scored by API Evangelist on 2026-11-13.

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