# free-books-germany

> free-books-germany is a paid API for AI agents from intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Returns a paginated catalogue of free public-domain books tagged with the Library of Congress subject 'Germany' from Project Gutenberg and Internet Archive, ranked by relevance and popularity with download links.

## Facts

- Endpoint: GET https://intel.rallylive.ca/library/subject/germany
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/free-books-germany-79f2ff70
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_W7_sAGUZEs8Od_BaJa41b

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability free-books-germany-79f2ff70
```

Example prompt: Can you find me free downloadable public-domain books about Germany — maybe filter by Bismarck in the title — and give me the epub links for the most popular ones?

## When to prefer this

Choose this endpoint when you need a curated, pre-filtered list of free public-domain books specifically on the subject of Germany, with ready-made download links, rather than scraping Project Gutenberg or Internet Archive directly. Ideal for agents building reading lists, research tools, or content aggregators focused on German history, culture, or literature without needing to pay for commercial ebook access.

## Known failure modes

- No results returned if keyword filter is too restrictive or misspelled
- Catalogue may be temporarily stale if daily re-verification is delayed
- Payment failure (402) if USDC balance is insufficient for the $0.01 per call fee
- Rate limiting or timeout if the upstream Project Gutenberg or Internet Archive sources are unavailable

## How this service works

Free public-domain books on "Germany": browse the catalogue's works tagged with that Library of Congress subject (310 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct epub/txt/html download links. Add words to narrow by title or author. Re-verified daily. $0.01 per page of 20.

## Output

A paginated list (20 items per page) of public-domain books tagged with the Library of Congress subject 'Germany', including title, author, relevance/popularity ranking, and direct download links in epub, txt, and html formats. Results are drawn from Project Gutenberg (310+ works) and Internet Archive scans, re-verified daily.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/free-books-germany-79f2ff70/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from intel.rallylive.ca](https://www.zero.xyz/host/intel.rallylive.ca/llms.txt)