Closing-line value (CLV) API

Quantifies closing-line value by comparing the decimal odds you bet at against the closing odds, returning CLV in odds-percentage and implied-probability terms and whether you beat the close. Answers 'Did I beat the closing line?', 'What is my CLV on this bet?'.

Price$0.04per request

MethodPOST

Route/v1/sports/closing-line-value

StatusLive

MIME typeapplication/json

Rate limit120/minute

Cache0s public

sportsbettingclosing-line-valueclvbeat-the-closesharpedgemarketskill

API URLhttps://x402.hexl.dev/v1/sports/closing-line-value

Integration docs

Example request

{
  "betDecimal": 2.1,
  "closeDecimal": 1.9
}

Example response

{
  "betDecimal": 2.1,
  "closeDecimal": 1.9,
  "impliedAtBet": 0.47619,
  "impliedAtClose": 0.526316,
  "clvOddsPct": 10.5263,
  "impliedProbabilityEdge": 0.050125,
  "beatTheClose": true,
  "interpretation": "positive CLV — you got better odds than the close",
  "formula": "CLV% = (betDecimal/closeDecimal - 1)·100; probEdge = 1/close - 1/bet"
}

Input schema

{
  "type": "object",
  "required": [
    "betDecimal",
    "closeDecimal"
  ],
  "properties": {
    "betDecimal": {
      "type": "number",
      "description": "Decimal odds you bet at",
      "examples": [
        2.1
      ]
    },
    "closeDecimal": {
      "type": "number",
      "description": "Closing decimal odds",
      "examples": [
        1.9
      ]
    }
  }
}

Output schema

{
  "type": "object",
  "additionalProperties": true
}