# Sears Holdings

**Canonical:** https://apis.io/providers/sears-holdings/  
**Website:** https://www.sears.com/  
**APIs profiled:** 1

Sears Holdings was the American holding company behind the Sears and Kmart department store chains. It filed for Chapter 11 in October 2018 and its retail operations were acquired in 2019 by Transform Holdco LLC, which trades as Transformco (Transform SR Brands LLC), the entity that operates Sears.com, Kmart.com and ShopYourWay.com today. The live developer surface carried forward from that estate is the Sears Marketplace Seller API — a versioned XML-over-HTTPS integration for third-party sellers covering catalog and item management, item class and attribute libraries, inventory, pricing, purchase order retrieval, order cancellations, returns and partial or full refunds, ASN and shipment updates, order prep time, installation service items, and remittance, removed-item, content-match and processing reports. Every API is published with a downloadable XSD and a sample XML document, both fetchable without credentials from seller.marketplace.sears.com, and calls are signed with an HMAC-SHA256 authorization header rather than OAuth. There is no OpenAPI, GraphQL, MCP server or A2A agent card on any Sears, Kmart or Transformco host.

## Kin Score — 39.2 / 100 (thin)

Scored 2026-08-30 under rubric 0.17.2. Trend: flat (+0.0 from 39.2).

| Facet | Score |
|---|---|
| Discoverability | 68.5 |
| Contract Quality | 6.7 |
| Governance | 18.2 |
| Contract Governance | 18.2 |
| Operational Transparency | 55.3 |
| Developer Ergonomics | 63.1 |
| Commercial Clarity | 43.4 |
| Access Clarity | 43.4 |

## Agent readiness — 16.2 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | documented |
| Auth Clarity | bearer |
| Idempotency | no |
| Error Semantics | documented |
| OpenAPI Examples | documented |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | yes |
| 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 | no |

## Access

Public docs, seller-account gated credentials, $39.99/mo program fee plus category commission — onboarding: unknown, pricing: paid, trial: no (confidence: medium).

## APIs (1)

- **Sears Marketplace Seller API** — Versioned XML-over-HTTPS API for third-party sellers on Sears Marketplace (Sears.com, Kmart.com, ShopYourWay.com). GET calls export purchase orders, inventory, item classes, att...

## Security (2)

- **Sears Holdings Authentication** — 1 scheme
- **Sears Holdings Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Sears Holdings Plans Pricing**

## Tags

Fortune 100, Retail, E-Commerce, Marketplace, Order Management, Inventory, Product Catalog, Seller Integration, XML

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