{"slug":"api-marketintelligenceapi-com-api-v1-analytics-zscore-daba4f","title":"Use to measure how unusual a value is versus its history ($0.01)","host":"api.marketintelligenceapi.com","method":"POST","resource":"https://api.marketintelligenceapi.com/api/v1/analytics/zscore","category":"market","description":"Use to measure how unusual a value is versus its history ($0.01): send value and reference values; get mean, standard deviation and z = (value - mean) / sd. Choose SAMPLE (default, n-1) or POPULATION (n) standard deviation. Deterministic, works for prices, volumes, spreads or any series.","price_listed":0.01,"price_asked":null,"state":"effects","state_label":"Not tested: has real-world effects","checks_7d":0,"answered_7d":0,"latency_ms_median":null,"reported_calls_30d":5,"reported_payers_30d":3,"networks":["eip155:137","eip155:42161","eip155:480","eip155:8453","eip155:84532","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{"method":"SAMPLE","value":125,"values":[98,102,101,110,99,103,100]},"bodyType":"json","method":"POST","type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","additionalProperties":false,"properties":{"input":{"additionalProperties":false,"properties":{"body":{"properties":{"method":{"default":"SAMPLE","description":"Standard deviation: SAMPLE divides by n-1, POPULATION by n","enum":["SAMPLE","POPULATION"],"type":"string"},"value":{"description":"The observation to score","type":"number"},"values":{"items":{"description":"Reference value","type":"number"},"maxItems":10000,"minItems":2,"type":"array"}},"required":["value","values"],"type":"object"},"bodyType":{"enum":["json"],"type":"string"},"method":{"enum":["POST"],"type":"string"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"additionalProperties":true,"properties":{"example":{"description":"Example JSON response returned by this endpoint"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input","output"],"type":"object"},"history":[],"description_full":"Use to measure how unusual a value is versus its history ($0.01): send value and reference values; get mean, standard deviation and z = (value - mean) / sd. Choose SAMPLE (default, n-1) or POPULATION (n) standard deviation. Deterministic, works for prices, volumes, spreads or any series.","last_updated":"2026-10-08T06:08:42.218Z","schemes":["exact"]}