# Zulily

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

Zulily is an online retailer of daily deals on apparel, home, toys, and lifestyle goods. After its 2023 shutdown the brand was acquired and relaunched as a Shopify-hosted store. The relaunched storefront is agent-native: it implements the Universal Commerce Protocol (UCP) with a JSON-RPC MCP shopping endpoint, exposes OpenID Connect / OAuth 2.0 authentication via the Shopify Customer Account API (including a customer-account-mcp-api scope), and publishes an llms.txt / agents.md describing how AI shopping agents can discover products and run buyer-approved checkouts. This profile was surfaced as an a16z / Trinity Ventures portfolio company and enriched from Zulily's real public agent-commerce surface.

## Kin Score — 18.9 / 100 (emerging)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+1.1 from 17.8).

| Facet | Score |
|---|---|
| Discoverability | 87.0 |
| Contract Quality | 0.0 |
| Governance | 18.2 |
| Contract Governance | 18.2 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 19.0 |
| Commercial Clarity | 21.1 |
| Access Clarity | 21.1 |

## Agent readiness — 25.6 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | verified |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | yes |
| Well Known Catalog | no |
| Consent Identity | yes |
| Agent Card | no |
| Dry Run Mode | no |

## Access

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

## APIs (2)

- **Zulily UCP Shopping (MCP)** — Zulily's agent-facing commerce API implementing the Universal Commerce Protocol (UCP) over a JSON-RPC MCP endpoint — search the catalog, build a cart, and run a buyer-approved c...
- **Zulily Customer Account API (Shopify)** — OpenID Connect / OAuth 2.0 authentication and customer-account access for Zulily shoppers, provided by the Shopify Customer Account API, including an MCP-scoped agent surface.

## MCP servers (1)

- **Zulily MCP Server**

## Security (1)

- **Zulily Authentication** — oauth2/openIdConnect · 1 scheme

## Tags

Company, E-Commerce, Retail, Shopping, Commerce, Agent Commerce, Universal Commerce Protocol, MCP, Shopify

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