{"slug":"text-ciphers-x402tookit-com-frequency-analysis-402cf9","title":"Letter frequencies, index of coincidence and the most likely Caesar shift of a c","host":"text-ciphers.x402tookit.com","method":"GET","resource":"https://text-ciphers.x402tookit.com/frequency-analysis","category":"other","description":"Letter frequencies, index of coincidence and the most likely Caesar shift of a ciphertext using English statistics.","price_listed":0.02,"price_asked":0.02,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":348,"reported_calls_30d":1,"reported_payers_30d":1,"networks":["eip155:137","eip155:42161","eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"method":"GET","queryParams":{"text":"Wklv lv d vhfuhw phvvdjh derxw d fdhvdu flskhu zlwk d ixqqb vkliw"},"type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET"],"type":"string"},"queryParams":{"properties":{"text":{"description":"Text to analyse (up to 5000 characters; 40 or more letters for a shift guess)","type":"string"}},"required":["text"],"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"properties":{"asOf":{"type":["null","string"]},"candidatePlaintext":{"type":["null","string"]},"degraded":{"type":["boolean","null"]},"disclaimer":{"type":["null","string"]},"englishIC":{"type":["null","number"]},"frequencies":{"items":{"properties":{"count":{"type":["null","number"]},"englishPercent":{"type":["null","number"]},"letter":{"type":["null","string"]},"percent":{"type":["null","number"]}},"type":"object"},"type":["array","null"]},"indexOfCoincidence":{"type":["null","number"]},"interpretation":{"type":["null","string"]},"letters":{"type":["null","number"]},"likelyShift":{"type":["null","number"]},"mostCommon":{"items":{"type":"string"},"type":["array","null"]},"notChecked":{"items":{"type":"string"},"type":["array","null"]},"randomIC":{"type":["null","number"]},"reasons":{"items":{"type":"string"},"type":["array","null"]},"runnerUpShift":{"type":["null","number"]},"shiftConfidenceRatio":{"type":["null","number"]},"source":{"type":["null","string"]},"summary":{"type":["null","string"]},"verdict":{"type":["null","string"]}},"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-10-21","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.02,"price_match":true,"latency_ms":348,"error":null}],"description_full":"Letter frequencies, index of coincidence and the most likely Caesar shift of a ciphertext using English statistics.","last_updated":"2026-10-20T20:47:24.588Z","schemes":["exact"]}