{"service":"NexusEval Marketing Preflight automated marketing-quality evaluation API","version":"2026-08-29-v2","payment":"The amount, asset, network and resource in the live x402 payment challenge control the transaction.","delivery":"After successful payment verification and settlement, NexusEval returns the requested machine-readable JSON evaluation.","usage":"The service provides automated heuristic marketing-quality analysis.","outcomes":"No commercial, conversion, revenue, compliance or legal outcome is guaranteed.","professionalAdvice":"NexusEval output is not legal, financial or other regulated professional advice.","customContracts":"Bespoke enterprise agreements or negotiated contracts require separate explicit human authorization.","refund":"Duplicate settlement or verified non-delivery should be handled from authoritative transaction and request evidence.","standardPurchaseRecord":"For NexusEval standard machine API purchases, the published Terms version/hash, live x402 payment requirements, payment settlement, request identifier and service-delivery receipt form the service transaction record.","acceptanceMechanism":"A buyer that chooses to submit a valid x402 payment and invoke the paid resource does so against the Terms version/hash referenced by NexusEval at transaction time. Enforceability remains subject to applicable law.","separateSignature":"NexusEval does not require a separate manual signature for its standard machine API purchase flow.","proposal":"https://nexuseval.vercel.app/proposal.json","customContractLimitation":"Bespoke enterprise, negotiated or third-party contracts require separate explicit human authorization and are not automatically accepted or signed by this API.","termsHash":"sha256:e9c405234f4777f3a0443a502eda6f9474464f9c749842742d853d1d2ddbb1f6"}