---
title: "For AI Agents"
id: "9531"
type: "page"
slug: "agents"
published_at: "2026-07-18T22:29:13+00:00"
modified_at: "2026-07-23T23:35:53+00:00"
url: "https://preppers-paradise.com/agents/"
markdown_url: "https://preppers-paradise.com/agents.md"
excerpt: "Free /discover + catalog APIs. Two $0.01 sample chapters (programming + DIY). Full books via x402 USDC on Base."
---

# For AI Agents — Prepper's Paradise

Agent-native digital library: free machine catalog, free book overviews and teaser chapters, paid full manuscripts and chapters via HTTP 402 + USDC on Base. No accounts. No API keys.

**Quick start (free):** [/discover](https://preppers-paradise.com/discover) · [/api/v1/catalog](https://preppers-paradise.com/api/v1/catalog) · [/api/v1/stats](https://preppers-paradise.com/api/v1/stats) · [/openapi.json](https://preppers-paradise.com/openapi.json)

## Price menu

| What | Path | Price | Notes |
|------|------|-------|-------|
| Service map | `/discover` | **Free** | Endpoints + payment + price_menu |
| Catalog by category | `/api/v1/catalog` | **Free** | `?q=&category=&limit=` |
| Full discovery | `/library/discovery.json` | **Free** | Optional `?include_chapters=1` |
| Book overview + teasers | `/library/{slug}/` | **Free** | Sample before paying |
| Sample — What Is Programming | `/library/automatetheboringstuffwithpythonnew/02-what-is-programming.md` | **$0.01** | Programming |
| Sample — Knockdown Workbench | `/library/carpentrymadesimple/02-knockdown-workbench.md` | **$0.01** | DIY |
| Typical chapter | `/library/{slug}/{chapter}.md` | ~$0.25 | Live prices in discovery |
| Complete book | `/library/complete/{slug}.md` | ~$2.99 | Prefer for many chapters |

## 1. Start here (always free)

- https://preppers-paradise.com/discover
- https://preppers-paradise.com/api/v1/catalog
- https://preppers-paradise.com/api/v1/stats · https://preppers-paradise.com/api/v1/categories
- https://preppers-paradise.com/openapi.json
- https://preppers-paradise.com/library/discovery.json
- https://preppers-paradise.com/wp-json/x402-library/v1/discovery
- Per-book: https://preppers-paradise.com/library/{book-slug}/discovery.json
- https://preppers-paradise.com/llms.txt · https://preppers-paradise.com/.well-known/x402

```bash
curl -sS https://preppers-paradise.com/discover | head
curl -sS "https://preppers-paradise.com/api/v1/catalog?limit=5" | head
curl -sS https://preppers-paradise.com/openapi.json | head
```

## 2. Sample quality without paying

1. Open a book `url` from catalog/discovery (free overview).
2. Open any chapter with `"access":"free"` — prefer `markdown_url`.
3. Append `.md` for Markdown + YAML front matter.

```bash
curl -sS https://preppers-paradise.com/library/automatetheboringstuffwithpythonnew/01-whom-is-this-book-for.md | head -n 40
curl -sS https://preppers-paradise.com/library/carpentrymadesimple/01-carpentry-made-simple.md | head -n 40
```

## 3. Buy with x402 (exact USDC on Base)

1. GET a paid `.md` URL → HTTP 402
2. Pay exact `maxAmountRequired` USDC on Base (CDP)
3. Retry with `PAYMENT-SIGNATURE` / `X-PAYMENT` → Markdown

```bash
# $0.01 programming sample
curl -sD - -o /tmp/402-py.json 
  https://preppers-paradise.com/library/automatetheboringstuffwithpythonnew/02-what-is-programming.md

# $0.01 DIY sample
curl -sD - -o /tmp/402-diy.json 
  https://preppers-paradise.com/library/carpentrymadesimple/02-knockdown-workbench.md
# Expect maxAmountRequired=10000

# Full book ~$2.99
curl -sD - -o /tmp/402-book.json 
  https://preppers-paradise.com/library/complete/automatetheboringstuffwithpythonnew.md
```

## 4. Merchant facts

- Network: Base (`base` / `eip155:8453`)
- USDC: `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`
- payTo: `0x3BF4F4914F78C3C2B2F2801f8EA717135B7D3BDF`
- Facilitator: Coinbase CDP

## 5. Vertical

DIY, carpentry, maker electronics, Arduino, programming/automation, data/sysadmin, survival/self-reliance, STEM, practical skills, AI/ML.

Operator: Solution Engine IT · Brand: Prepper's Paradise