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Api Endpoint

quant-kelly

Kelly-criterion optimal bet fraction and position sizing from a win probability and payoff, or from an edge and odds. Pure computation over your inputs.

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Offering

Provider
payai.agentstools.dev
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Financial Analysis
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://payai.agentstools.dev/quant/kelly
MIME type
application/json
First seen
2026-10-16T02:00:30.940Z
Last seen
Tags
quant, kelly, position-sizing, bankroll, betting

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.001 USDC
Atomic price: 1000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2
0.001 USDC
Atomic price: 1000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "payTo": "0xF22e558a00D91Ee12A1F50C52186FecB8dDFf493"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "1000",
    "payTo": "AytHnvc6bZx1ALTy7b5Px7hcavoSYszG9aeKvDcZ8R1u"
  }
]

Observed health

Status
Healthy
Latest latency
384 ms
Average latency
966 ms
HTTP status
402
Last checked
Reachability
100% over 12 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET",
        "HEAD",
        "DELETE"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "win_prob": {
          "type": "number",
          "description": "Probability of a win in [0, 1]"
        },
        "win_loss_ratio": {
          "type": "number",
          "description": "Payoff ratio b of win size to loss size (> 0)"
        },
        "edge": {
          "type": "number",
          "description": "Expected edge, alternative input paired with odds"
        },
        "odds": {
          "type": "number",
          "description": "Odds b, alternative input paired with edge (> 0)"
        },
        "fraction": {
          "type": "number",
          "description": "Fractional-Kelly multiplier, default 1"
        },
        "bankroll": {
          "type": "number",
          "description": "Bankroll to size the position against"
        },
        "clamp": {
          "type": "boolean",
          "description": "Clamp the Kelly fraction to [0, 1], default true"
        }
      },
      "required": []
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "input"
  ],
  "properties": {
    "input": {
      "type": "object",
      "required": [
        "type",
        "method"
      ],
      "properties": {
        "type": {
          "type": "string",
          "const": "http"
        },
        "method": {
          "enum": [
            "GET",
            "HEAD",
            "DELETE"
          ],
          "type": "string"
        },
        "queryParams": {
          "type": "object",
          "required": [],
          "properties": {
            "edge": {
              "type": "number",
              "description": "Expected edge, alternative input paired with odds"
            },
            "odds": {
              "type": "number",
              "description": "Odds b, alternative input paired with edge (> 0)"
            },
            "clamp": {
              "type": "boolean",
              "description": "Clamp the Kelly fraction to [0, 1], default true"
            },
            "bankroll": {
              "type": "number",
              "description": "Bankroll to size the position against"
            },
            "fraction": {
              "type": "number",
              "description": "Fractional-Kelly multiplier, default 1"
            },
            "win_prob": {
              "type": "number",
              "description": "Probability of a win in [0, 1]"
            },
            "win_loss_ratio": {
              "type": "number",
              "description": "Payoff ratio b of win size to loss size (> 0)"
            }
          }
        }
      },
      "additionalProperties": false
    },
    "output": {
      "type": "object",
      "required": [
        "type"
      ],
      "properties": {
        "type": {
          "type": "string"
        },
        "example": {
          "type": "object"
        }
      }
    }
  }
}