Marketplace · API · AIPayGen tools

Book search (Open Library) (AIPayGen)

Find books by title, author, subject or ISBN across 40M+ records in Open Library: authors, first published year, editions, page count, ISBNs, subjects, ratings and cover image.

Endpointhttps://aipaygen.com/v1/book_search
Price$0.001 per call
Trust✓ Verified callable · null% uptime over 0 checks
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
toolbook_search
httpGET https://aipaygen.com/v1/book_search
mcphttps://aipaygen.com/mcp
docshttps://aipaygen.com/docs#book_search
payx402 USDC on Base per call (no account), or an API key with prepaid credits. Low-cost tools: 3 free calls a day.

Use it

Call it (an x402 client pays automatically)

curl -i https://aipaygen.com/v1/book_search
# 402 reply -> sign PAYMENT-REQUIRED with an x402 client (e.g. @x402/fetch) -> retry with PAYMENT-SIGNATURE

This listing as JSON

curl https://aipaygen.com/v1/catalog/api/aipaygen-book-search

Search the whole marketplace from your agent (MCP)

{
  "mcpServers": {
    "aipaygen": {
      "url": "https://aipaygen.com/mcp"
    }
  }
}

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