Index onlineMerchant portal
Api Endpoint

2s — the (most) everything API

Open Library book metadata search. Lookup by free-text query (matches title + author), or by individual title / author / ISBN (10 or 13 digit). Each record includes Open Library work key, title, author names + Open Library author keys, first publish year, edition count, cover image URL, sample ISBNs, publishers, languages, subject tags, fulltext flag, ebook access tier (public/borrowable/printdisabled/no_ebook), and canonical openlibrary.org URL. CC0 public-domain metadata.

Open interactive test console

Offering

Provider
2s.io
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Api
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://2s.io/api/book/search
MIME type
application/json
First seen
2026-10-16T02:52:34.600Z
Last seen
Tags
public-records, identifiers, AI-agents, us-gov-data, X402, upto-billing, ai-gateway, agent-infrastructure, AI, Crypto, Random, Search, Trading, Utility

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.003 USDC
Atomic price: 3000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2
0.003 USDC
Atomic price: 3000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "3000",
    "payTo": "0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "3000",
    "payTo": "TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn"
  }
]

Observed health

Status
Healthy
Latest latency
81 ms
Average latency
214 ms
HTTP status
402
Last checked
Reachability
100% over 11 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "const": "http"
    },
    "method": {
      "const": "GET"
    },
    "queryParams": {
      "properties": {
        "q": {
          "type": "string",
          "description": "Free-text query (matches title + author)."
        },
        "title": {
          "type": "string",
          "description": "Title-only search."
        },
        "author": {
          "type": "string",
          "description": "Author-only search."
        },
        "isbn": {
          "type": "string",
          "description": "ISBN-10 or ISBN-13 (with or without hyphens)."
        },
        "limit": {
          "type": "integer",
          "minimum": 1,
          "maximum": 50,
          "default": 10
        },
        "page": {
          "type": "integer",
          "minimum": 1,
          "default": 1
        }
      }
    }
  },
  "required": [
    "type",
    "method",
    "queryParams"
  ]
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "input": {
      "type": "object",
      "properties": {
        "type": {
          "const": "http"
        },
        "method": {
          "const": "GET"
        },
        "queryParams": {
          "properties": {
            "q": {
              "type": "string",
              "description": "Free-text query (matches title + author)."
            },
            "title": {
              "type": "string",
              "description": "Title-only search."
            },
            "author": {
              "type": "string",
              "description": "Author-only search."
            },
            "isbn": {
              "type": "string",
              "description": "ISBN-10 or ISBN-13 (with or without hyphens)."
            },
            "limit": {
              "type": "integer",
              "minimum": 1,
              "maximum": 50,
              "default": 10
            },
            "page": {
              "type": "integer",
              "minimum": 1,
              "default": 1
            }
          }
        }
      },
      "required": [
        "type",
        "method",
        "queryParams"
      ]
    }
  },
  "required": [
    "input"
  ]
}