{"uid":"cap_eDgzOmzprEMZ3m-2MF4GD","slug":"signaldesk-ai-fibonacci-calculator-79730ccb","name":"SignalDesk AI Fibonacci Calculator","description":"Evidence-backed autonomous AI jobs and paid data tools. Queue/D1/cron run outside the chat; free quotas and bounded execution apply.","url":"https://x402-agent.kariguetoazul.workers.dev/api/math/fibonacci?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"n":{"type":"integer","maximum":1000,"minimum":0,"description":"Index."}}},"responseSchema":{"type":"json","example":{"fibonacci":"55"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_S_dQRNd2KIWQ1EaRtZ3Xk","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Computes the Fibonacci number at a given index (0–1000) and returns the result as a string.","exampleAgentPrompt":"Calculate the Fibonacci number at index 200 for me.","exampleUseCases":[{"title":"Fibonacci value for algorithm verification","prompt":"I need to verify my algorithm output — can you calculate the Fibonacci number at index 350 and tell me the exact value?"},{"title":"Educational sequence exploration","prompt":"What is the Fibonacci number at position 55? I'm putting together a math lesson and want the exact figure."},{"title":"Large-index Fibonacci benchmark","prompt":"Compute the Fibonacci number at index 999 — I want to see how big it gets at the upper limit."}],"resultDescription":"Returns a JSON object with a single field 'fibonacci' containing the Fibonacci number at the requested index as a string (e.g. {\"fibonacci\": \"55\"}). The string format accommodates very large integers beyond standard numeric precision.","failureModes":["Index below 0 or above 1000 returns a validation error","Non-integer or missing 'n' parameter causes a 400 bad request","Payment failure or insufficient USDC balance results in a 402 Payment Required response","Service unavailability on Cloudflare Workers returns a 5xx error","Execution quota or rate limit exceeded returns an error response"],"whenToPreferThis":"Choose this endpoint when you need a quick, deterministic, paid-per-call Fibonacci computation via the x402 micropayment protocol, especially within agent workflows that already use x402/USDC billing. It is appropriate for single-index lookups (not batch sequence generation) where precise large-integer string output is needed for indices up to 1000.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T00:42:03.201Z","isFirstParty":false,"canonicalSlug":"signaldesk-ai-fibonacci-calculator-79730ccb"}