{"uid":"cap_wqG_9U49unhTmMORWB0uJ","slug":"signaldesk-ai-password-search-space-calculator-49cf8b79","name":"SignalDesk AI Password Search Space 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/encoding/password-search-space?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"password":{"type":"string","maxLength":256,"description":"Sample password; do not send a real secret."}}},"responseSchema":{"type":"json","example":{"length":10,"warning":"Assumes uniform random independent characters; human passwords can be much weaker.","assumed_pool":95,"upper_bound_bits":65.69855608330948}},"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_n6bow0mvqREH7tnYFiSsf","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 theoretical upper-bound entropy (in bits) and character pool size for a given password sample, without storing or evaluating the actual secret.","exampleAgentPrompt":"Can you calculate the theoretical entropy and search space for a password like 'Tr0ub4dor&3' — I want to know how many bits of entropy it has and what character pool it assumes, without actually storing it?","exampleUseCases":[{"title":"Evaluating password policy compliance","prompt":"I'm writing a password policy for our company and want to verify that a sample password like 'C0mplex!ty99' meets at least 60 bits of entropy — can you calculate its upper-bound entropy and character pool size for me?"},{"title":"Explaining password strength to a user","prompt":"My user just set their password to 'sunshine2024' and I need to explain to them in concrete terms how weak it is — can you compute its entropy in bits and assumed character pool so I can show them the numbers?"},{"title":"Comparing entropy of different password patterns","prompt":"I want to compare the theoretical strength of 'aB3!xY9@qW' versus a shorter password — can you calculate the entropy upper bound and character pool for 'aB3!xY9@qW' so I can use it as a benchmark?"}],"resultDescription":"Returns a JSON object with the password length, the assumed character pool size (e.g. 95 for full printable ASCII), an upper-bound entropy value in bits (computed as log2(pool^length)), and a warning that real human-chosen passwords are typically much weaker than the theoretical maximum.","failureModes":["Password string exceeds 256 characters — request rejected","Empty or missing password field — likely returns error or zero entropy","Payment of 0.001 USDC not completed — 402 Payment Required response","Malformed JSON body — 400 Bad Request","Sending a real production password is discouraged by the API's own warning"],"whenToPreferThis":"Use this endpoint when you need a fast, cheap, mathematically grounded upper-bound entropy estimate for a password sample — particularly useful for policy checks, educational explanations, or automated audits. It does not check against breach databases or model human password patterns, so prefer a dedicated password-strength library (zxcvbn, etc.) if you need realistic crack-time estimates or dictionary-attack resistance scoring.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-10T18:41:01.584Z","isFirstParty":false,"canonicalSlug":"signaldesk-ai-password-search-space-calculator-49cf8b79"}