PayStream is a voice‑activated AI agent that turns natural language into safe, programmable USDC payment agreements on Arc testnet. Users speak a request (“pay Alice $10 weekly”), and the agent handles the full lifecycle: speech‑to‑text, intent parsing, agreement preparation, on‑chain escrow, oracle approval, and execution. The frontend runs on Next.js, backed by serverless API routes on Vercel. Agreements are formed as EIP‑712 payloads and authorized by the agent, then settled through a Solidity conditional‑escrow contract that holds USDC until predefined conditions are met. Oracles provide signature‑based policy checks (limits, recipients, timing), ensuring payouts follow guardrails. Optional WalletConnect lets users review or co‑sign from their own wallet, while Circle Developer Sandbox can be used for compliant wallet flows. The result is a transparent, auditable, and trust‑minimized payment experience that feels conversational yet executes with on‑chain guarantees. PayStream is ideal for recurring payouts, creator subscriptions, service retainers, and automated reimbursements—unlocking hands‑free payment operations for teams, apps, and agents.

Nova is a voice-first, multi-agent AI platform that acts as a personal Web3 concierge. Through a simple Streamlit web app, users can speak naturally to explore, evaluate, and acquire digital assets on Solana and other chains. Powered by Coral Protocol’s Model Context Protocol (MCP), Nova coordinates specialized agents: a Voice Agent for real-time speech interaction (ElevenLabs), a Research Agent to find trending NFT projects, an NFT Analyst Agent to evaluate rarity and pricing, and a Transaction Agent to securely mint via Crossmint. By combining conversational AI with blockchain APIs, Nova removes the complexity of wallets, smart contracts, and data analysis, making NFT ownership accessible to everyone.

StudyMate AI is a smart, interactive platform designed to assist international students throughout their study abroad journey. Built using Trae AI IDE, the app leverages large language models via Novita.ai to provide real-time visa assistance, personalized application roadmaps, and tailored academic guidance based on each user’s profile. Students can input their academic interests, budget, preferred countries, and English proficiency to generate a customized timeline of tasks and documentation. With a secure authentication system, progress-tracking dashboard, and AI-powered chatbot, StudyMate AI simplifies the complexities of global education. Its scalable, modular design allows for future backend integration and mobile expansion, making it a future-ready EdTech solution.

🗓️ 48-hour AI Challenge - Build your own AI agent or agent simulation over the weekend 🦜 Power up your coding with the LangChain framework! 🤝 Connect with potential co-founders and mentors at the event

🕒 Complete the challenge within 48 hours and unlock incredible prizes! 📅 June 13 - June 15 – Participate online, collaborating with innovators and builders to explore a new way of software development. 🌟 Expert mentors will guide you every step of the way. 🤝 Work alone or form a team to build something extraordinary. 💰 $80,000 in credits and prizes! ⏳ Sign up before the Kick-Off Stream to secure your spot!

This is your chance to push boundaries, solve real-world challenges, and create impact at the official hackathon of the RAISE Summit 2025 at one of Paris's most iconic venues: Le Carrousel du Louvre. 📅 July 4–8, 2025 — Collaborate online with a global community of innovators. 🏛️ July 8–9, 2025 — Limited on-site access to the RAISE Summit in Paris (300 participants), exclusively for selected teams. 🏆 July 9, 2025 — Winners will be announced live on stage during the RAISE Summit. 🌟 Expert mentors will guide you throughout your hackathon journey. 🤝 Work solo or build your dream team to create something extraordinary. 💰 Compete for a share of up to $150,000 in prizes. 🔒 Sign up before the Kick-Off Stream to secure your spot!