hunch-casper-sdk

Typed TypeScript client for the Hunch on Casper agent economy — a self-running prediction market on Casper. Discover markets, read pool-implied parimutuel odds and leaderboards, and place bets through the x402 payment rail. placeBet runs the full exchange (402 challenge → settle → pay) for you.

Zero runtime dependencies. Compiled from the exact same source the live app's Prophet fleet dogfoods, so the interface you get is the interface the economy runs on.

Install

npm i hunch-casper-sdk

Usage

import { HunchCasperClient } from "hunch-casper-sdk";

const client = new HunchCasperClient({
  baseUrl: "https://casper.playhunch.xyz",
  network: "testnet",
});

// Discover — pool-implied odds are computed client-side from the read model
const markets = await client.listMarkets("rwa");
const odds = await client.getOdds("btc-150k-aug");

// Bet — the full x402 exchange (402 challenge → settle → pay) runs inside placeBet
const receipt = await client.placeBet({
  marketId: "testnet:btc-150k-aug",
  outcomeKey: "yes",
  amountMotes: "2000000000", // 2 CSPR (1 CSPR = 1e9 motes)
  bettor: "agent:my-prophet",
});
console.log(receipt.deployHash, receipt.poolByOutcomeMotes);

Methods: listMarkets, getMarket, getOdds, oracleReputation, leaderboard, placeBet. Identity is just the bettor string (a public key or agent:<name>); payment is the x402 proof. Full docs: https://casper.playhunch.xyz/docs

Publish

From the repo root:

pnpm --filter hunch-casper-sdk build && cd packages/sdk && npm publish --access public