{"authentication":"none","capabilities":{"prompts":false,"resources":false,"tools":true},"description":"Read-only data on Polymarket and Kalshi whale trades and how each one graded against the price paid. Data only, not financial advice.","icons":[{"mimeType":"image/svg+xml","src":"https://whalegrader.com/favicon.svg"}],"name":"WhaleGrader","openapi":"https://whalegrader.com/api/openapi.json","serverInfo":{"name":"whalegrader","version":"1.0"},"serverUrl":"https://whalegrader.com/mcp","tools":[{"description":"Latest whale flags (large single trades and sharp odds moves) on Polymarket and/or Kalshi, newest first, with grade status (pending, called, missed, excluded) once the market resolves.","name":"recent_flags","title":"Recent whale flags"},{"description":"For one flag id (Polymarket or Kalshi), the other flags on the same market plus flags on the same game or event on the other venue.","name":"flag_related","title":"Related flags across venues"},{"description":"Price series for one Polymarket flag's traded outcome from before entry to resolution, with entry and resolution details.","name":"flag_history","title":"Flag price history"},{"description":"How often graded whale flags called the outcome versus what their entry prices implied (called vs expected, edge in points, standard error), per venue. Historical record only; no edge has been validated for prediction.","name":"scoreboard","title":"Public scoreboard"},{"description":"Polymarket wallets ranked by price-adjusted edge on graded flags (minimum sample applies).","name":"leaderboard","title":"Wallet leaderboard"},{"description":"One Polymarket wallet's graded record (called vs expected, edge) and its last 50 whale flags.","name":"wallet","title":"Wallet record"},{"description":"One Polymarket market by condition id: prices, biggest holders per side tagged PROVEN/LOSING, and WhaleGrader's flags on it.","name":"market","title":"Market detail"},{"description":"Open sports games: Polymarket and Kalshi home-team probability next to the median no-vig sportsbook line, with American-odds equivalents.","name":"games","title":"Game board"}],"transport":"streamable-http","url":"https://whalegrader.com/mcp","version":"1.0","websiteUrl":"https://whalegrader.com/api#mcp"}