# Saylor Innovations Books – Open Library Book Search

> Saylor Innovations Books – Open Library Book Search is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-02).

Searches the Open Library catalog (40M+ editions) by title or keywords and returns matching book records

## Facts

- Endpoint: GET https://saylorinnovations.com/api/books/search?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/saylor-innovations-books-open-library-book-search-f5be4aab
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_aMfy31oGGqwrsb-T8SwDv

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 saylor-innovations-books-open-library-book-search-f5be4aab
```

Example prompt: Search the Open Library catalog for books matching 'dune' and show me the results including total matches.

## When to prefer this

Choose this endpoint when you need to search across a massive catalog of 40M+ book editions by title or keyword. Prefer it over ISBN lookup when you don't have a specific ISBN and want to discover books matching a topic or partial title. It complements the sibling ISBN Lookup endpoint which gives detailed metadata for a known book.

## Known failure modes

- Missing or empty 'q' query parameter returns no results or an error
- Very broad queries may return an overwhelming number of results with limited signal
- Open Library upstream downtime may cause slow or failed responses
- Queries with special characters may need URL encoding
- Misspelled titles may return zero results

## How this service works

Book Search (Open Library, 40M+ editions) — Books & Media

## Output

Returns a JSON object containing an array of book records (each with edition metadata such as title, authors, and identifiers) plus a total_matches count indicating how many editions matched the search query.

## 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",
      "POST",
      "PUT",
      "PATCH",
      "DELETE",
      "HEAD"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "q": {
       "type": "string",
       "description": "title/keywords (query)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "json"
    },
    "example": {
     "type": "object",
     "required": [
      "books"
     ],
     "properties": {
      "books": {
       "type": "array",
       "items": {
        "type": "object"
       }
      },
      "total_matches": {
       "type": "number"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/saylor-innovations-books-open-library-book-search-f5be4aab/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from saylorinnovations.com](https://www.zero.xyz/host/saylorinnovations.com/llms.txt)