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 eCommerce.

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

🌐 Visit website 📡 Source on GitHub
34.9/100 thin ▬ flat Agent 34/100 agent ready Full breakdown ↓
scored 2026-08-17 · rubric v0.11.0
2 APIs 1 MCP Servers
CompanyBaby FoodConsumer Packaged GoodsFood and BeverageeCommerceRetailDirect to ConsumerShopifyAgentic CommerceUniversal Commerce ProtocolNutrition

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-17 · rubric v0.11.0
Composite quality — 34.9/100 · thin
Contract Quality 13.9 / 25
Developer Ergonomics 5.5 / 20
Commercial Clarity 6.8 / 20
Operational Transparency 0.7 / 13
Governance 0.4 / 12
Discoverability 7.6 / 10
Agent readiness — 34/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 10
MCP Server 0 / 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
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/cerebelly: 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.

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-mcp.yml

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
Conventions
 Idempotency
Idempotency
 Conformance
Conformance
 ErrorCatalog
ErrorCatalog
 Lifecycle
Lifecycle
 DataModel
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)

apis.yml Raw ↑ 
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.'
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: '0.20'
created: '2026-08-09'
modified: '2026-08-09'
tags:
- 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
  - 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