# Project Gutenberg Book Detail via Gutendex

> Project Gutenberg Book Detail via Gutendex is a paid API for AI agents from proxy.suverse.io, paid per call via x402, $0.055/call, status unknown (last checked 2026-09-14).

Fetches full metadata for a single Project Gutenberg book by its numeric ID, including title, authors, subjects, languages, available formats, and download count.

## Facts

- Endpoint: POST https://proxy.suverse.io/v1/data/suverse-gutenberg-book-detail
- Price: $0.055/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/project-gutenberg-book-detail-via-gutendex-0762524f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_do_vZMYEhtDaMXvzoNGHu

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 project-gutenberg-book-detail-via-gutendex-0762524f -d '<json body>'
```

Example prompt: Look up Project Gutenberg book ID 1342 and give me its title, authors, available download formats, and how many times it's been downloaded.

## When to prefer this

Use this endpoint when you have a specific Project Gutenberg numeric book ID and need to resolve it to full metadata including download URLs, author details, subjects, and format availability — without needing an API key. Prefer this over scraping gutenberg.org directly or calling Gutendex yourself if you need a managed, paid proxy with consistent response structure.

## Known failure modes

- Invalid or non-existent Gutenberg ID returns an empty or error response
- Network timeout if Gutendex upstream is slow
- Malformed request body results in a 400 error
- Payment failure (x402) prevents the call from completing

## How this service works

Fetch one Project Gutenberg book by its numeric ID via Gutendex. Returns title, authors, subjects, languages, formats and download_count. Keyless. Useful for resolving a Gutenberg ID to full book metadata and download URLs.

## Output

Returns a JSON object with the book's title, list of authors (name and birth/death years), subject tags, language codes, a map of available format MIME types to download URLs, and the total download count from Project Gutenberg.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "properties": {}
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "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/project-gutenberg-book-detail-via-gutendex-0762524f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from proxy.suverse.io](https://www.zero.xyz/host/proxy.suverse.io/llms.txt)