Kelly criterion bet sizing from win probability and odds
Kelly criterion bet sizing from win probability and odds - full, half and quarter Kelly, expected log growth, break-even win rate and a verdict
Answers HTTP 404 without x402 payment termsour last check, 2026-10-18
0 of 1checks answered this week
n/amedian answer time
$0.01listed price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://saylorinnovations.com/api/finance/kelly
| Category | Everything else |
|---|---|
| Provider host | saylorinnovations.com |
| Networks | eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-18 | no x402 terms | 404 | 363 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"odds": "1",
"win_prob": "0.55"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"POST",
"PUT",
"PATCH",
"DELETE",
"HEAD"
],
"type": "string"
},
"queryParams": {
"properties": {
"odds": {
"description": "Net payout per 1 staked (1 = even money)",
"type": "string"
},
"win_prob": {
"description": "Probability of winning, 0-1",
"type": "string"
}
},
"required": [
"win_prob",
"odds"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"break_even_win_probability": {
"description": "Break even win probability",
"type": "number"
},
"edge_per_unit_staked": {
"description": "Edge per unit staked",
"type": "number"
},
"expected_log_growth_full_kelly": {
"description": "Expected log growth full kelly",
"type": [
"number",
"null"
]
},
"expected_log_growth_half_kelly": {
"description": "Expected log growth half kelly",
"type": [
"number",
"null"
]
},
"full_kelly_fraction": {
"description": "Full kelly fraction",
"type": [
"number",
"null"
]
},
"full_kelly_percent": {
"description": "Full kelly, as a percentage",
"type": "number"
},
"half_kelly_percent": {
"description": "Half kelly, as a percentage",
"type": "number"
},
"net_odds": {
"description": "Net odds",
"type": "number"
},
"note": {
"description": "Caveat or context for reading the result",
"type": "string"
},
"quarter_kelly_percent": {
"description": "Quarter kelly, as a percentage",
"type": "number"
},
"source": {
"description": "Data source the values come from",
"type": "string"
},
"verdict": {
"description": "Overall assessment derived from the listed reasons",
"type": "string"
},
"win_probability": {
"description": "Win probability",
"type": "number"
}
},
"required": [
"win_probability",
"full_kelly_percent",
"verdict"
],
"type": "object"
},
"type": {
"const": "json",
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}