{"mensaje":"Este endpoint requiere POST con JSON, ej: {\"urls\":[\"https://www.w3.org/WAI/ER/tests/xhtml/testfiles/resources/pdf/dummy.pdf\",\"https://www.w3.org/WAI/ER/tests/xhtml/testfiles/resources/pdf/dummy.pdf\"]}. Precio: $0.004 USDC (Solana o Base)."}