I Built a Multi-Agent AI System for $0 (Google Capstone Project)

Sahpathi AI is a multi-agent system built for free using Google's tools as a Google Capstone Project submission. The system leverages Google's APIs and open-source frameworks to create a collaborative agent architecture without paid services. The project demonstrates how to build production-grade AI agents using only free-tier resources and demonstrates practical implementation of agent orchestration, tool integration, and inter-agent communication.

Key Points

• •Built a production-grade multi-agent system using exclusively free Google services (Gemini API, Google Cloud free tier)
• •Implemented agent orchestration with specialized agents handling different domains/tasks collaboratively
• •Integrated multiple tools and APIs to extend agent capabilities beyond base language models
• •Designed inter-agent communication patterns for task delegation and result aggregation
• •Used open-source frameworks to reduce dependency on paid commercial AI platforms
• •Demonstrated cost-effective scaling by leveraging Google's free-tier quotas and rate limits
• •Implemented error handling and fallback mechanisms for reliable multi-agent workflows
• •Created a modular architecture allowing easy addition of new agents and tools
• •Optimized prompt engineering for agent specialization and task-specific performance
• •Documented the system as a Google Capstone Project submission showcasing practical AI agent development

Workflow Diagram

Concepts