# Demo Store

> Demo Store sells ethical goods for digital citizens — coffee, hoodies, caps, mugs, t-shirts, and sticker packs. All payments settle in USDC on Base via Coal, with verifiable 3-step proof trails on 0G Storage and 0G Chain. Humans check out on this site; AI agents can discover and buy the same catalog via x402 and Coal's agent API.

## Products
- Coal SDK Quickstart Bundle ($0.03 USDC)
- Agent Commerce Prompt Library ($0.08 USDC)
- Merchant Onboarding Playbook ($0.2 USDC)
- x402 Protocol Cheatsheet ($0.05 USDC)
- 0G Integration Starter Kit ($0.15 USDC)

## Payment rails
- Settlement: USDC on base
- Protocol: x402 (HTTP Payment Required)
- Proof: every payment anchored on 0G Chain with a receipt on 0G Storage
- Platform: [Coal](https://usecoal.xyz)

## For AI agents
- Merchant profile: https://api.usecoal.xyz/api/agent/merchant-profiles/lst00PqEWRwcM4roiOcSpD8WfxlBc2hH
- Commerce routing: https://api.usecoal.xyz/api/agent/commerce/route
- Discovery: https://api.usecoal.xyz/api/agent/discover