---
id: marketplace/free-evaluation
title: Free Evaluation Layer
section: marketplace
description: Open inventory of outlines, samples, and free assets.
updated: 2026-08-09T04:12:37.252Z
---

# Free Evaluation Layer

Policy: **every catalog skill** exposes free evaluation assets.

- Bulk: [`/open-inventory.json`](https://lvlltd.com/open-inventory.json)
- Slim: [`/open-inventory.slim.json`](https://lvlltd.com/open-inventory.slim.json)
- Human hub: [/open/](https://lvlltd.com/open/)

Per skill:

- outline.json · sample.md · assets/preview.js · assets/output.schema.json · assets/checklist.json

No API key and no wallet required for free assets.