The [Agora hackathon](https://agora.thecanteenapp.com/) challenged builders to create AI agents that trade, invest, create, and interface with markets, with settlement on Arc using USDC. This session puts the spotlight on three award-winning teams from the cohort — a builder-to-builder conversation focused on demos, real use cases, and lessons you can take directly into your own Arc projects. **What was showcased** - 🥇 **[Mimir Markets](https://arc-showcase.thecanteenapp.com/p/mimir/)** — Cankat Polat: a 1v1 prediction market where an AI Oracle council reads evidence and settles claims onchain without human input - 🥈 **[Precall](https://arc-showcase.thecanteenapp.com/p/precall/)** — Mrgtee: USDC-bonded prediction calls powered by a five-agent council and x402 micropayments, with a 68% win rate across 336 resolved calls - ⭐ **[Archimedes](https://arc-showcase.thecanteenapp.com/p/archimedes/)** — Dan Browne: a quantitative finance research system that fuses trading ideas with 10,000+ arXiv papers and live market data to backtest strategies with rigorous statistical validation All three projects are open source and available to fork, import, and build on top of via the [Arc Open Source Showcase](https://arc-showcase.thecanteenapp.com/). This hackathon is part of the Agora builder series — a Canteen × Circle collaboration exploring what's possible on Arc. --- Arc is offered by Circle Technology Services, LLC (“CTS”). CTS is a software provider and does not provide regulated financial or advisory services. You are solely responsible for services you provide to users, including obtaining any necessary licenses or approvals and otherwise complying with applicable laws. Arc has not been reviewed or approved by the New York State Department of Financial Services. The product features described in these materials are for informational purposes only and may be modified, delayed, or cancelled without notice at the sole discretion of Circle Technology Services, LLC. Nothing herein constitutes a commitment, warranty, guarantee, or investment advice. USDC is issued by regulated affiliates of Circle. A list of Circle’s regulatory authorizations can be found here.

Pulsar is building a consumer money app on Arc around stablecoin settlement. The app is designed around USDC and EURC balances, payments, card activity, FX, and multi-currency flows. For Arc, Pulsar is important because it brings the stack closer to daily consumer money movement: not just infrastructure, but an app where users can hold, move, spend, and eventually automate stablecoin activity.

This page answers common implementation questions about building with App Kit.