# Curtsy

**Canonical:** https://apis.io/providers/curtsy/  
**Website:** https://curtsyapp.com/  
**APIs profiled:** 0

Curtsy is a mobile-first resale marketplace for secondhand women's fashion, focused on Gen Z and young-millennial shoppers roughly ages 15 to 30. Through its free iOS and Android apps, users buy and sell trending clothing, shoes, and accessories from brands like Lululemon, Free People, and SKIMS, saving up to 70% off retail. Curtsy holds no inventory of its own — sellers ship directly to buyers using prepaid shipping labels and free Curtsy-branded starter kits — and the company earns a 20% fee on each completed sale. Founded in 2016 as part of Y Combinator's Summer 2016 batch and headquartered in San Francisco, Curtsy has raised venture funding from Canaan Partners and Index Ventures. Curtsy is a consumer app with no public developer API, SDKs, or documentation surface at this time.

## Kin Score — 13.3 / 100 (emerging)

Scored 2026-08-19 under rubric 0.12.0. Trend: flat (+0.2 from 13.1).

| Facet | Score |
|---|---|
| Discoverability | 50.0 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 7.1 |
| Commercial Clarity | 34.2 |
| Access Clarity | 34.2 |

## Agent readiness — 0.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| 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 |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## Security (1)

- **Curtsy Domain Security** — TLSv1.3 · DMARC

## Tags

Company, Resale, Marketplace, Fashion, E-commerce, Secondhand, Consumer, Mobile

---

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