# Glossier

**Canonical:** https://apis.io/providers/glossier/  
**Website:** https://www.glossier.com  
**APIs profiled:** 1

Glossier is a direct-to-consumer beauty and personal-care brand (skincare, makeup, body, and fragrance) that sells through its own Shopify-powered storefront at glossier.com. It reached the API Evangelist network as a portfolio company of Forerunner Ventures, Index Ventures, IVP, and Thrive Capital. Glossier does not publish a traditional developer program, but its storefront is agent-native: it implements the Universal Commerce Protocol (UCP) with a live MCP endpoint for agent-driven catalog search, cart, and buyer-approved checkout, publishes /llms.txt and /agents.md agent instructions, and exposes Shopify Customer Account OAuth2/OIDC authentication with a discoverable authorization server.

## Kin Score — 19.6 / 100 (emerging)

Scored 2026-08-30 under rubric 0.17.2. Trend: flat (+0.0 from 19.6).

| Facet | Score |
|---|---|
| Discoverability | 75.9 |
| Contract Quality | 0.0 |
| Governance | 18.2 |
| Contract Governance | 18.2 |
| Operational Transparency | 10.5 |
| Developer Ergonomics | 21.4 |
| Commercial Clarity | 21.1 |
| Access Clarity | 21.1 |

## Agent readiness — 20.3 (agent-aware)

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

## Access

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium).

## APIs (1)

- **Glossier Agent Commerce (UCP / MCP)** — Agent-facing commerce surface for the Glossier storefront implementing the Universal Commerce Protocol over MCP: catalog search, cart, checkout, and fulfillment with a buyer-app...

## MCP servers (1)

- **Glossier MCP Server** — Glossier's Shopify storefront exposes a live agent-commerce MCP endpoint via the Universal Commerce Protocol (UCP). The endpoint enumerates its tool schemas only after an agent ...

## Security (3)

- **Glossier Authentication** — oauth2/openIdConnect · 2 schemes
- **Glossier Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC
- **Glossier Vulnerability Disclosure** — disclosure policy published

## Tags

Company, Consumer, Beauty, Cosmetics, E-Commerce, Retail, Agent Commerce, Universal Commerce Protocol, Shopify, MCP

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