Santa's Treasury
Santa’s Treasury a festive onchain game. Santa’s Treasury a festive onchain game.
Demo
About
Santa Treasury: Naughty or Nice Market is a holiday-themed onchain game that lives entirely inside your XMTP inbox. After solving the daily riddle, players choose between a “Nice” reward (a safe USDC payout) or a “Naughty” reward (a risky memecoin spin). Naughty picks are powered by the **CDP Trade API**, which swaps $5 USDC for a random memecoin on Base and sends it to the player. Before paying out, the agent uses the **CDP Data API** to scan the player’s wallet. If they already hold that token, the agent applies a playful “degen bonus multiplier.” All funds are held in a **CDP Server Wallet**, and all interactions happen through XMTP, making the experience completely wallet-native and message-driven.
How it's made
Santa Treasury is built around the XMTP Agent SDK. e. Daily challenges are defined in a static `challenges.json` file that maps each Advent day to a riddle and expected answer. A scheduled job (or manual trigger during the hack) uses the Agent SDK to broadcast that day’s clue to all subscribed users. When the agent receives an `answer` message, it looks up today’s challenge, validates the solution, updates the player’s state and sends a contextual reply. The leaderboard is computed on demand from the stored player records and rendered as a simple text table back into the chat. This architecture keeps everything wallet-native, message-first and entirely on XMTP, with no extra auth layer or heavy frontend required.