Win Prob

Estimates live in-game win probability for NFL, NBA, MLB, NHL, and soccer from the current score and time remaining.

Overview

Estimates live in-game win probability for NFL, NBA, MLB, NHL, and soccer from the current score and time remaining. Returns each team's win probability, the projected final margin, the size of the swing still possible, and human-readable drivers. Built-in scoring volatility for NFL/NCAAF/NBA/NCAAB/WNBA/MLB/NHL/soccer; override scoring_std for any sport. Statistical estimate, not betting advice. Use it as a live sports win probability API or in-game win chance calculator.

Endpoint

Method	Endpoint	Price	Description
POST	/v1/marketplace/api/win-prob	$0.00345	Invoke Win Prob (General) and return the upstream response.

How to call it

Requests are paid per call over the x402 protocol. Call the endpoint, receive a 402 Payment Required quote, then repeat the request with the signed payment header. The SDKs do both steps for you.

# 1. Ask for a quote
curl -i -X POST https://api.jarvisclaw.ai/v1/marketplace/api/win-prob \
  -H 'Content-Type: application/json' \
  -d '{}'

# 2. Pay it (the SDK signs and retries for you)
curl -X POST https://api.jarvisclaw.ai/v1/marketplace/api/win-prob \
  -H 'Content-Type: application/json' \
  -H 'X-PAYMENT: <signed-payload>' \
  -d '{}'

Open in the marketplace