# ForgemeshLibrary Engineering & Technology Shelf

> ForgemeshLibrary Engineering & Technology Shelf is a paid API for AI agents from library.forgemesh.io, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-13).

Returns a ranked list of up to 50 public-domain engineering and technology books with drill-down routes for full-text retrieval

## Facts

- Endpoint: POST https://library.forgemesh.io/engineering-technology
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/forgemeshlibrary-engineering-technology-shelf-bf01249a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JDN1o2YEMvtdoEc1R9l4_

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 forgemeshlibrary-engineering-technology-shelf-bf01249a -d '<json body>'
```

Example prompt: Show me up to 10 public-domain engineering and technology books from the ForgemeshLibrary shelf — things like steam engineering, wireless telegraphy, or model flying machines.

## When to prefer this

Choose this endpoint when you need a curated, pre-ranked list of public-domain engineering and technology books without any licensing friction or API key setup. It is ideal for agents that need to browse or enumerate classic technical literature (steam engineering, wireless telegraphy, model aviation) and then drill down into full text. Prefer this over a general web search when you need structured, stable metadata with known public-domain status.

## Known failure modes

- Limit parameter exceeds 50 — may be clamped or return an error
- Request with invalid limit type (non-integer) may return a validation error
- Network or service unavailability returns a 5xx error
- Payment failure via x402 protocol prevents access to results

## How this service works

Curated shelf: Engineering & Technology — 912 public-domain books including Color Images from Mars Rovers Spirit and Opportunity, Concrete Construction: Methods and Costs, The Notebooks of Leonardo Da Vinci — Complete. Returns a ranked list with drill-down routes for full-text retrieval. No license, no API key required.

## Output

A ranked list of public-domain engineering and technology books (up to the requested limit, default 20, max 50), each entry including title, author, and a drill-down route for full-text retrieval. No authentication or license is required to access results.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "limit": {
   "type": "integer",
   "description": "Max books to return (default 20, max 50)"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "books": [
   {
    "year": null,
    "title": "Color Images from Mars Rovers Spirit and Opportunity",
    "author": "Webster, Bob",
    "book_id": 12082,
    "subjects": [],
    "download_count": 23375
   }
  ],
  "count": 5,
  "shelf": "Engineering & Technology",
  "coverage": {
   "target": 61015,
   "indexed": 61015
  },
  "drill_down": [
   "/book-metadata",
   "/book-chapter",
   "/book-quotes",
   "/literature-search"
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/forgemeshlibrary-engineering-technology-shelf-bf01249a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from library.forgemesh.io](https://www.zero.xyz/host/library.forgemesh.io/llms.txt)