Cerebelly

Cerebelly is an organic baby and toddler food company founded by a practicing neurosurgeon with a PhD in developmental neurobiology from Stanford, making veggie-first purees, bone-broth protein purees, dairy-free smoothie pouches, Smart Bars and Clever Bars formulated around 16 brain-supporting nutrients. Its direct-to-consumer storefront at cerebelly.com runs on Shopify, and that storefront is its API surface: an anonymous Universal Commerce Protocol (UCP) MCP endpoint exposing 13 catalog, cart and checkout tools, a public Shopify Storefront GraphQL API answering unauthenticated introspection, an OpenID Connect customer-account authorization server, and a published llms.txt / agents.md pair that tells AI shopping agents how to transact. Cerebelly ships no developer program of its own — every machine-readable surface here is the Shopify commerce platform as deployed on Cerebelly's own hosts.

Cerebelly publishes 2 APIs on the APIs.io network. Tagged areas include Company, Baby Food, Consumer Packaged Goods, Food and Beverage, and E-Commerce.

Cerebelly’s developer surface includes documentation, authentication, engineering blog, support, signup flow, and 19 more developer resources.

🌐 Visit website 📡 Source on GitHub

33.4/100 thin ▬ flat Agent 27/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

2 APIs 1 MCP Servers

Company Baby Food Consumer Packaged Goods Food and Beverage E-Commerce Retail Direct to Consumer Shopify Agentic Commerce Universal Commerce Protocol Nutrition

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 33.4/100 · thin

Contract Quality 12.0 / 25

Developer Ergonomics 6.1 / 20

Access Clarity 6.8 / 20

Operational Transparency 0.3 / 13

Contract Governance 0.5 / 12

Discoverability 7.6 / 10

Agent readiness — 27/100 · agent aware

Machine-Readable Contract 18 / 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 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 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 5 / 5

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.

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/cerebelly: 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.

Cerebelly UCP Commerce MCP

Cerebelly's Universal Commerce Protocol (UCP) MCP endpoint, served anonymously from the storefront host. A tools/list call returns 13 tools with full JSON Schema draft 2020-12 i...

Cerebelly Storefront GraphQL API

The Shopify Storefront GraphQL API as served from cerebelly.com. Answers unauthenticated introspection: 416 types, 35 root queries and 41 mutations covering products, collection...

MCP Servers 1

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

Cerebelly UCP Commerce MCP

A live, anonymously reachable Model Context Protocol endpoint on Cerebelly's own storefront host. An unauthenticated POST of {"jsonrpc":"2.0","id":1,"method":"tools/list"} retur...

MCP SERVER

JSON Schema 1

Standalone JSON Schema definitions for this provider's data models.

Cerebelly UCP Commerce MCP — tool input schemas

0 properties

JSON SCHEMA

Security Posture 2

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

Cerebelly Authentication

4 schemes

SECURITY

Cerebelly Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Cerebelly Scopes

OAuth 2.0 · no documented scopes

0 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 6

Pagination, idempotency, versioning, errors, and events

Conventions

Idempotency

Conformance

ErrorCatalog

Lifecycle

DataModel

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

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 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 3

The organization behind the API

Website

Website

Blog

Blog

BlogRSS

BlogRSS

Other 3

Properties that don't map to a standard resource type

RefundPolicy

RefundPolicy

ShippingPolicy

ShippingPolicy

WhereToBuy

WhereToBuy

Source (apis.yml)

aid: cerebelly
name: Cerebelly
description: 'Cerebelly is an organic baby and toddler food company founded by a practicing neurosurgeon with a PhD in developmental
  neurobiology from Stanford, making veggie-first purees, bone-broth protein purees, dairy-free smoothie pouches, Smart Bars
  and Clever Bars formulated around 16 brain-supporting nutrients. Its direct-to-consumer storefront at cerebelly.com runs
  on Shopify, and that storefront is its API surface: an anonymous Universal Commerce Protocol (UCP) MCP endpoint exposing
  13 catalog, cart and checkout tools, a public Shopify Storefront GraphQL API answering unauthenticated introspection, an
  OpenID Connect customer-account authorization server, and a published llms.txt / agents.md pair that tells AI shopping agents
  how to transact. Cerebelly ships no developer program of its own — every machine-readable surface here is the Shopify commerce
  platform as deployed on Cerebelly''s own hosts.'
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  probe_state: covered
  source:
  - authentication
  - scopes
  - security
  generated: '2026-09-03'
  method: derived
image: https://cdn.shopify.com/s/files/1/0745/9091/2725/files/Cerebelly_Pantry_01_6a49ec81-265a-437a-ba3d-b5b94590be47.png?v=1759935945
url: https://raw.githubusercontent.com/api-evangelist/cerebelly/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
specificationVersion: '0.23'
created: '2026-08-09'
modified: '2026-08-09'
tags:
- Company
- Baby Food
- Consumer Packaged Goods
- Food and Beverage
- E-Commerce
- Retail
- Direct to Consumer
- Shopify
- Agentic Commerce
- Universal Commerce Protocol
- Nutrition
tags_raw:
- Company
- Baby Food
- Consumer Packaged Goods
- Food and Beverage
- eCommerce
- Retail
- Direct to Consumer
- Shopify
- Agentic Commerce
- Universal Commerce Protocol
- Nutrition
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-08-09'
  status: enriched
  artifacts_added: 24
  pass: local-v1
x-coverage:
  state: covered
  reason: agent-commerce-surface-live
  detail: A consumer baby-food brand with no developer program still turned out to have three live, anonymously readable machine
    surfaces on its own host — an MCP endpoint returning 13 UCP commerce tools with full JSON Schemas, a Storefront GraphQL
    API answering unauthenticated introspection with 416 types, and an llms.txt/agents.md pair carrying a real agent policy.
    No OpenAPI and no A2A agent card exist anywhere on the domain.
  evidence:
  - url: https://cerebelly.com/api/ucp/mcp
    status: 200
  - url: https://cerebelly.com/api/2026-01/graphql.json
    status: 200
  - url: https://cerebelly.com/llms.txt
    status: 200
  - url: https://cerebelly.com/.well-known/ucp
    status: 200
  - url: https://cerebelly.com/.well-known/agent-card.json
    status: 404
  - url: https://cerebelly.com/openapi.json
    status: 404
  checked: '2026-08-09'
apis:
- aid: cerebelly-ucp-commerce-mcp
  name: Cerebelly UCP Commerce MCP
  description: Cerebelly's Universal Commerce Protocol (UCP) MCP endpoint, served anonymously from the storefront host. A
    tools/list call returns 13 tools with full JSON Schema draft 2020-12 input schemas covering catalog search and lookup,
    product detail, cart lifecycle, and the full checkout lifecycle through buyer-approved completion. Checkout completion
    carries an idempotency-key. This is the Shopify UCP implementation as deployed on cerebelly.com.
  humanURL: https://cerebelly.com/llms.txt
  baseURL: https://cerebelly.com/api/ucp/mcp
  tags:
  - MCP
  - Agentic Commerce
  - Universal Commerce Protocol
  - Checkout
  - Catalog
  properties:
  - type: MCPServer
    url: mcp/cerebelly-mcp.yml
  - type: ToolCrosswalk
    url: mcp/cerebelly-tool-crosswalk.yml
  - type: JSONSchema
    url: json-schema/cerebelly-ucp-tool-schemas.json
  - type: Documentation
    url: https://cerebelly.com/agents.md
- aid: cerebelly-storefront-graphql
  name: Cerebelly Storefront GraphQL API
  description: 'The Shopify Storefront GraphQL API as served from cerebelly.com. Answers unauthenticated introspection: 416
    types, 35 root queries and 41 mutations covering products, collections, blog articles, pages, menus, metaobjects, predictive
    search, localization, cart lifecycle and Shop Pay. Date-based API versioning (2025-10 through 2026-07 supported) is discoverable
    through the publicApiVersions query.'
  humanURL: https://cerebelly.com/agents.md
  baseURL: https://cerebelly.com/api/2026-01/graphql.json
  tags:
  - GraphQL
  - Storefront
  - E-Commerce
  - Catalog
  tags_raw:
  - GraphQL
  - Storefront
  - eCommerce
  - Catalog
  properties:
  - type: GraphQL
    url: graphql/cerebelly-storefront.graphql
  - type: Lifecycle
    url: lifecycle/cerebelly-lifecycle.yml
common:
- type: DomainSecurity
  url: security/cerebelly-domain-security.yml
- type: Website
  url: https://cerebelly.com/
- type: Documentation
  url: https://cerebelly.com/agents.md
- type: LLMsTxt
  url: llms/cerebelly-llms.txt
- type: WellKnown
  url: well-known/cerebelly-well-known.yml
- type: Authentication
  url: authentication/cerebelly-authentication.yml
- type: OAuthScopes
  url: scopes/cerebelly-scopes.yml
- type: Conventions
  url: conventions/cerebelly-conventions.yml
- type: Idempotency
  url: conventions/cerebelly-conventions.yml
- type: Conformance
  url: conformance/cerebelly-conformance.yml
- type: ErrorCatalog
  url: errors/cerebelly-problem-types.yml
- type: Lifecycle
  url: lifecycle/cerebelly-lifecycle.yml
- type: DataModel
  url: data-model/cerebelly-data-model.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Blog
  url: https://cerebelly.com/blogs/blog
- type: BlogRSS
  url: https://cerebelly.com/blogs/news.atom
- type: GitHubOrganization
  url: https://github.com/Cerebelly
- type: Support
  url: https://cerebelly.com/pages/contact
- type: SignUp
  url: https://cerebelly.com/account/login
- type: TermsOfService
  url: https://cerebelly.com/policies/terms-of-service
- type: PrivacyPolicy
  url: https://cerebelly.com/policies/privacy-policy
- type: RefundPolicy
  url: https://cerebelly.com/policies/refund-policy
- type: ShippingPolicy
  url: https://cerebelly.com/policies/shipping-policy
- type: WhereToBuy
  url: https://cerebelly.com/pages/where-to-buy

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