{"uid":"cap_2kL2VlRrvNQO1wJry8uOs","slug":"8-bit-sfx-generator-mutate-sfxr-parameter-perturbation-4f5e6c0f","name":"8-bit SFX Generator – Mutate (SFXR Parameter Perturbation)","description":"Mutate a known-good seed's sound (classic sfxr mutate) — nearby variations by parameter perturbation","url":"https://x402.professorsausages.com/sfx/mutate","method":"GET","headers":{},"bodySchema":{"type":"object","required":["input"],"properties":{"input":{"type":"object"},"output":{"type":"object"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_iFt84mR4BgxO4tRxXUaeB","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Generates nearby 8-bit sound effect variations by mutating a known-good sfxr seed's parameters (classic sfxr mutate)","exampleAgentPrompt":"I have an sfxr seed for a coin-pickup sound effect and I want a few nearby variations — can you mutate it using the sfxr parameter perturbation approach to give me some close but different 8-bit blips?","exampleUseCases":null,"resultDescription":"Returns a mutated 8-bit sound effect audio output generated by perturbing the input sfxr seed's parameters, producing a nearby variation in the sfxr sound space; the response is a new chiptune-style sound effect close to but not identical to the original seed.","failureModes":["Missing or invalid input seed object returns a 400 or error response","Seed parameters outside valid sfxr ranges may produce silence or unexpected audio","Payment not included or insufficient USDC triggers x402 payment-required response","Network timeout on the hosted endpoint returns a 5xx error","Malformed JSON input schema results in a validation error"],"whenToPreferThis":"Use this endpoint when you already have a known-good sfxr seed and want to explore nearby sonic variations through parameter perturbation — ideal for procedural audio in retro/indie games where you need multiple similar sound effects (e.g. different coin pickup sounds). Prefer over a fresh-generation endpoint when you want to stay close to a target sound rather than generating something completely new.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T09:15:22.317Z","isFirstParty":false}