Seeker Eats
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Seeker Eats

Order food with crypto stablecoins on Solana

// Technologies

React Native Solana DoorDash Drive API Twilio VoIP Privy USDC

Overview

Seeker Eats is a mobile food delivery application that lets users order food and pay with USDC stablecoins on Solana. Built for the Solana Mobile ecosystem, it bridges the gap between crypto payments and real-world food delivery services.

🏆 Hackathon Winner: 3rd Place in the Solana Track at the 2025 Midwest Blockchain Conference Student Hackathon

The Problem

Spending crypto in the real world is still difficult. Most food delivery apps only accept traditional payment methods, forcing crypto users to off-ramp their assets before making everyday purchases.

Seeker Eats solves this by:

  • Enabling direct USDC payments for food orders on Solana
  • Providing a seamless crypto-to-fiat bridge for merchants
  • Connecting to a global logistics network through DoorDash Drive

How It Works

Authentication

Users log in and create wallets seamlessly via Privy, eliminating the complexity of seed phrase management while maintaining self-custody of funds.

Browse & Order

Users browse local restaurants, customize their orders, and checkout—all within a familiar mobile app experience.

Payments

Users pay with USDC on Solana. The app uses a crypto credit card integration (e.g., Kast) to pay merchants upfront in USD, enabling seamless integration with existing restaurant systems without requiring merchants to onboard to crypto.

Logistics

Orders are fulfilled by the DoorDash Drive network, providing reliable delivery infrastructure and real-time tracking.

Communication

Twilio VoIP APIs facilitate communication between the platform and restaurants for order confirmation and status updates.

Pitch Video

Hackathon Win Announcement

Technical Architecture

Mobile App (React Native)

  • Cross-platform iOS/Android development
  • Clean, intuitive ordering interface
  • Solana wallet integration via Privy
  • Real-time order tracking

Payment Flow

User (USDC on Solana) → App Wallet → Crypto Card → Merchant (USD)

This hybrid approach allows crypto-native payments while working with existing restaurant infrastructure—no merchant onboarding required.

Backend Services

  • Order Management: Handles order state, restaurant communication, and delivery tracking
  • DoorDash Drive Integration: Creates and monitors delivery requests
  • Twilio Integration: Powers calls to restaurants for order placement and updates

Key Features

FeatureDescription
USDC PaymentsPay for food with stablecoins on Solana
Privy AuthSeamless wallet creation & management
DoorDash DriveNationwide delivery network
Crypto-Fiat BridgeMerchants receive USD, users pay with crypto
Real-time TrackingTrack your order from kitchen to doorstep

What I Learned

Building Seeker Eats taught me valuable lessons about:

  • Crypto UX: Making blockchain payments feel as simple as traditional checkout
  • Payment infrastructure: Bridging crypto and fiat systems for real-world commerce
  • API orchestration: Coordinating multiple third-party services (DoorDash, Twilio, payment providers)
  • Mobile development: React Native best practices and platform-specific considerations
  • Hackathon execution: Shipping a working product under tight deadlines