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KiHustle Bayes Probability Calculator
x402
KiHustle Bayes Probability Calculator is a paid API for AI agents from kihustle.tech, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-13).
Computes posterior probability using Bayes' theorem given prior probability, likelihood, and false-positive rate
Price / call$0.002
Success—
StatusUnknown
How this service works
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Output
Returns a JSON object indicating the computed Bayesian posterior result and a success status. The result field contains the calculated posterior probability P(A|B) derived from the three input probabilities using Bayes' theorem.
Example use cases
Medical test result interpretation
“I have a disease with 1% prevalence in the population. A test for it is 95% accurate when the disease is present, and has a 10% false-positive rate. What's the probability I actually have the disease if I test positive?”
Spam filter posterior update
“My prior probability that an email is spam is 0.3. Given a spam email, there's an 80% chance it contains the word 'free'. Given a non-spam email, there's a 5% chance it contains 'free'. What's the posterior probability this email is spam if it contains 'free'?”
Investment signal confidence
“There's a 20% prior chance a stock will outperform the market. My trading signal fires on 70% of outperforming stocks and 15% of underperforming ones. What's the updated probability that this stock outperforms given my signal just fired?”
Technical details
Endpoint
POSThttps://kihustle.tech/nexus/api/v1/probability-bayes?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a lightweight, pay-per-call Bayesian posterior calculation without setting up a local statistics library. Ideal for AI agents that periodically need to update probability estimates in pipelines, chatbots answering statistical questions, or automations that incorporate probabilistic reasoning steps without requiring a full data science stack.
Side effects
- Missing required input fields (p_a, p_b_given_a, p_b_given_not_a) causing a 400 error
- Probability values outside the valid [0,1] range causing computation errors
- Division by zero if p_b (total probability of B) is zero
- Payment failure via x402 protocol resulting in 402 response
- Ambiguous or vague response schema — only 'processed'/'success' returned without explicit posterior value
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| p_a | number | |
| p_b_given_a | number | |
| p_b_given_not_a | number |
Output
Schema · Response
{
"type": "json",
"example": {
"result": "processed",
"status": "success"
}
}Tags
x402
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