# library.forgemesh.io Book of the Day

> library.forgemesh.io Book of the Day is a paid API for AI agents from library.forgemesh.io, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Returns a deterministic daily book pick from the public-domain corpus, seeded by date so every caller gets the same answer on the same UTC day, with an optional date override for backfill.

## Facts

- Endpoint: POST https://library.forgemesh.io/book-of-the-day
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/library-forgemesh-io-book-of-the-day-23a04840
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5WH2Pg-haeZb-h3K9mc-T

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 library-forgemesh-io-book-of-the-day-23a04840 -d '<json body>'
```

Example prompt: What's today's book of the day from the ForgemMesh library? Also check what it was on 2024-03-10 for comparison.

## When to prefer this

Choose this endpoint when you need a single, consistent daily book recommendation that is the same for all callers on a given UTC day — ideal for digest newsletters, daily reading widgets, or audit logs. Prefer it over full-text search or shelf endpoints when you want a curated single pick rather than a ranked list or search results.

## Known failure modes

- Invalid date format (not YYYY-MM-DD) may result in an error or fallback to today's date
- Dates outside the supported corpus range may return an empty or error response
- Payment failure via x402 protocol will block the request
- Network timeouts from the service host

## How this service works

Deterministic daily book pick from the indexed corpus, date-seeded so every caller gets the same answer on the same day. Optional date override for backfill. Returns book_id and drill-down routes. No license, no API key required.

## Output

Returns a book_id identifying the deterministically selected daily book, plus drill-down route references that allow the caller to fetch further details about the selected title from the library corpus.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "date": {
   "type": "string",
   "description": "Optional YYYY-MM-DD override, defaults to today (UTC)"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "date": "2026-07-29",
  "year": "1999",
  "title": "The Adventures of Sherlock Holmes",
  "author": "Doyle, Arthur Conan, 1859-1930",
  "book_id": 1661,
  "pool_size": 865,
  "drill_down": [
   "/book-metadata",
   "/book-chapter",
   "/literature-search"
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/library-forgemesh-io-book-of-the-day-23a04840/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)