# SidelineSwap

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

SidelineSwap is an online marketplace where athletes buy and sell new and used sports equipment across hockey, baseball, softball, lacrosse, football, golf, soccer, skiing, snowboarding and more. Sellers list gear for free, while SidelineSwap handles payments, prepaid shipping labels and buyer protection, and pro shops and teams manage consignment inventory. The company operates a developer portal at developer.sidelineswap.com with a login-gated Inventory API plus REST services on api.sidelineswap.com for identity, commerce and secure payments, enabling partners and pro sellers to sync listings programmatically.

## Kin Score — 21.4 / 100 (emerging)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 21.4).

| Facet | Score |
|---|---|
| Discoverability | 75.9 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 2.6 |
| Developer Ergonomics | 33.3 |
| 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).

## APIs (1)

- **SidelineSwap API** — Authenticated REST API surface behind the SidelineSwap developer portal — identity (IAM), commerce and secure payments on api.sidelineswap.com, plus a partner Inventory API (dev...

## Security (1)

- **Sidelineswap Domain Security** — TLSv1.3 · HSTS · DMARC

## Tags

Company, Marketplace, Sports, Sporting Goods, E-Commerce, Commerce, Inventory, Resale, Consignment

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