# Maisonette

**Canonical:** https://apis.io/providers/maisonette/  
**Website:** https://www.maisonette.com/  
**APIs profiled:** 2

Maisonette is a New York-based online marketplace for babies and children, founded in 2017 by Sylvana Ward Durrett and Luisana Mendoza de Roccia, selling clothing, toys, furniture and decor for ages 0-12 from a curated network of independent boutiques and 800+ brands. It is a marketplace rather than a single seller: each item ships directly from its brand and is returned separately. Maisonette publishes no OpenAPI and runs no developer program, but its Shopify-hosted storefront exposes a real, live, unauthenticated agent surface — a Universal Commerce Protocol MCP endpoint with thirteen catalog, cart, checkout and order tools, a five-tool storefront MCP endpoint, an llms.txt and agents.md with explicit agent instructions, an agent-discovery sitemap, and OAuth 2.0/OIDC and RFC 9728 discovery documents served from its own host.

## Kin Score — 22.2 / 100 (emerging)

Scored 2026-09-01 under rubric 0.17.2. Trend: flat (+0.0 from 22.2).

| Facet | Score |
|---|---|
| Discoverability | 75.9 |
| Contract Quality | 0.0 |
| Governance | 18.2 |
| Contract Governance | 18.2 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 28.0 |
| Commercial Clarity | 34.2 |
| Access Clarity | 34.2 |

## Agent readiness — 16.4 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | documented |
| Auth Clarity | bearer |
| Idempotency | documented |
| Error Semantics | documented |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | derived |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | platform |

## APIs (2)

- **Maisonette UCP Commerce MCP** — Maisonette's agent-facing commerce surface: a Universal Commerce Protocol (2026-04-08) MCP server exposing thirteen tools across catalog search and lookup, cart, checkout and or...
- **Maisonette Storefront MCP** — The lighter read-and-cart Shopify Storefront MCP surface on Maisonette's own host — five anonymous tools covering catalog search, product detail, cart read and update, and a gro...

## MCP servers (1)

- **Maisonette MCP Server**

## Security (2)

- **Maisonette Authentication** — 5 schemes
- **Maisonette Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Maisonette Plans Pricing**

## Tags

Company, Retail, E-Commerce, Marketplace, Shopping, Children, Baby, Apparel, Homes, Agentic Commerce, MCP, Universal Commerce Protocol, Shopify

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/maisonette/). Scores are computed from the provider's own public artifacts under a published rubric.