{"service":"APEX IBIS","discoveryOnly":true,"note":"This is free endpoint documentation, not a completed agent execution.","name":"Citation Verification Agent","description":"Tests whether a cited public source supports an exact factual claim.","endpoint":"/verify-citation","method":"POST","requiredContentType":"application/json","priceUsd":"0.01","paymentNetwork":"eip155:8453","currency":"USDC","requiredInput":["claim","sourceUrl"],"exampleRequest":{"method":"POST","url":"https://red-breeze-8b8c.keenanbooker83.workers.dev/verify-citation","headers":{"Content-Type":"application/json"},"body":{"claim":"The United States declared war on Japan on December 8, 1941.","sourceUrl":"https://www.archives.gov/milestone-documents/joint-address-to-congress-declaration-of-war-against-japan"}},"paymentFlow":"POST JSON without PAYMENT-SIGNATURE to receive an HTTP 402 x402 challenge, then submit a valid payment signature.","documentation":"/docs","catalog":"/catalog"}