Curie website screenshot

Curie

Curie (Curie Vision, Inc.) is the commerce layer for AI — it connects AI assistants like ChatGPT, Claude, and Gemini to real product catalogs from 5.6M+ Shopify stores via the Model Context Protocol (MCP). Results carry live prices, real inventory, affiliate purchase links, and interactive 3D digital twins (GLB/USDZ) that shoppers can rotate and view in AR. Curie publishes a public REST catalog API, a hosted MCP server exposing 30 commerce tools, and cross-protocol discovery profiles (MCP, UCP, A2A, OpenAI Apps SDK). Most discovery and tool calls run on a free public tier with no auth; a Pro Bearer is required only for premium tools such as checkout. Backed by 500 Global.

Curie publishes 2 APIs on the APIs.io network: Catalog API and Products API. Tagged areas include Company, Commerce, E-Commerce, Shopify, and Artificial Intelligence.

Curie’s developer surface includes documentation, pricing, authentication, and 17 more developer resources.

🌐 Visit website 📡 Source on GitHub
39.7/100 thin ▬ flat Agent 55/100 agent ready Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessSelf serve
2 APIs 1 MCP Servers
CompanyCommerceE-CommerceShopifyArtificial IntelligenceModel Context ProtocolAgentic CommerceProduct Discovery3D

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 39.7/100 · thin
Contract Quality 15.5 / 25
Developer Ergonomics 8.7 / 20
Commercial Clarity 6.3 / 20
Operational Transparency 0.0 / 13
Governance 0.0 / 12
Discoverability 9.3 / 10
Agent readiness — 55/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 15
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 0 / 7
Typed Event Surface 0 / 6
Agent Skills 5 / 5
Well-Known Catalog 4 / 4
Consent & Bot Identity 0 / 3
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/curie: 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.

Curie Catalog API

The Catalog API from Curie — 1 operation(s) for catalog.

Curie Products API

The Products API from Curie — 6 operation(s) for products.

MCP Servers 1

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

curie-mcp.yml

MCP SERVER

Security Posture 2

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

Curie Authentication

none/http-bearer/oauth2 · 1 scheme

SECURITY

Curie Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Curie Scopes

1 scope · authorizationCode

1 scopes

SCOPES

Resources

Get Started 1

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

MCPServer
MCPServer
 LLMsTxt
LLMsTxt
 WellKnown
WellKnown
 AgentSkill
AgentSkill

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

ErrorCatalog
ErrorCatalog
 Conventions
Conventions
 DataModel
DataModel
 Conformance
Conformance
 Lifecycle
Lifecycle
 Components
Components

Access & Security 3

Authentication, authorization, and security posture

Authentication
Authentication
 OAuthScopes
OAuthScopes
 DomainSecurity
DomainSecurity

Commercial 3

Pricing, plans, and the legal terms of use

Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 1

The organization behind the API

Website
Website

Other 1

Properties that don't map to a standard resource type

Overlay
Overlay

Source (apis.yml)

apis.yml Raw ↑ 
aid: curie
name: Curie
description: Curie (Curie Vision, Inc.) is the commerce layer for AI — it connects AI assistants like ChatGPT, Claude, and
  Gemini to real product catalogs from 5.6M+ Shopify stores via the Model Context Protocol (MCP). Results carry live prices,
  real inventory, affiliate purchase links, and interactive 3D digital twins (GLB/USDZ) that shoppers can rotate and view
  in AR. Curie publishes a public REST catalog API, a hosted MCP server exposing 30 commerce tools, and cross-protocol discovery
  profiles (MCP, UCP, A2A, OpenAI Apps SDK). Most discovery and tool calls run on a free public tier with no auth; a Pro Bearer
  is required only for premium tools such as checkout. Backed by 500 Global.
url: https://raw.githubusercontent.com/api-evangelist/curie/refs/heads/main/apis.yml
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://cdn.prod.website-files.com/631a7e6c04b8fc3228d60317/631a7e6c04b8fc759ad60333_App%20Icon%20Main%20-%2032x32.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
x-tier: enriched
x-tier-reason: live-api-and-mcp
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Commerce
- E-Commerce
- Shopify
- Artificial Intelligence
- Model Context Protocol
- Agentic Commerce
- Product Discovery
- 3D
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- aid: curie:curie-catalog-api
  name: Curie Catalog API
  description: The Catalog API from Curie — 1 operation(s) for catalog.
  humanURL: https://chat.curie.app
  baseURL: https://chat.curie.app
  tags:
  - Catalog
  properties:
  - type: OpenAPI
    url: openapi/curie-catalog-api-openapi.yml
  - type: APIReference
    url: openapi/curie-openapi.json
- aid: curie:curie-products-api
  name: Curie Products API
  description: The Products API from Curie — 6 operation(s) for products.
  humanURL: https://chat.curie.app
  baseURL: https://chat.curie.app
  tags:
  - Products
  properties:
  - type: OpenAPI
    url: openapi/curie-products-api-openapi.yml
  - type: APIReference
    url: openapi/curie-openapi.json
common:
- type: Website
  url: https://curie.co
- type: DeveloperPortal
  url: https://chat.curie.app
- type: Documentation
  url: https://chat.curie.app/llms.txt
- type: Pricing
  url: https://chat.curie.app/pricing
- type: TermsOfService
  url: https://chat.curie.app/terms
- type: PrivacyPolicy
  url: https://chat.curie.app/privacy
- type: MCPServer
  url: mcp/curie-mcp.yml
- type: LLMsTxt
  url: llms/curie-llms.txt
- type: WellKnown
  url: well-known/curie-well-known.yml
- type: Authentication
  url: authentication/curie-authentication.yml
- type: OAuthScopes
  url: scopes/curie-scopes.yml
- type: DomainSecurity
  url: security/curie-domain-security.yml
- type: ErrorCatalog
  url: errors/curie-problem-types.yml
- type: Conventions
  url: conventions/curie-conventions.yml
- type: DataModel
  url: data-model/curie-data-model.yml
- type: Conformance
  url: conformance/curie-conformance.yml
- type: Lifecycle
  url: lifecycle/curie-lifecycle.yml
- type: Overlay
  url: overlays/curie-overlay.yaml
- type: Components
  url: components/curie-components.yml
- type: AgentSkill
  url: skills/_index.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence