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+# AITBC Architecture Documentation
+
+This directory contains comprehensive architecture documentation for the AITBC platform, covering system components, data flows, and technical implementation details.
+
+## 📚 **Document Structure**
+
+### **Core Architecture Documents**
+
+1. **[1_system-flow.md](./1_system-flow.md)** - System flow diagrams and data flow architecture
+2. **[2_components-overview.md](./2_components-overview.md)** - High-level component overview and interactions
+3. **[3_coordinator-api.md](./3_coordinator-api.md)** - Coordinator API architecture and endpoints
+4. **[4_blockchain-node.md](./4_blockchain-node.md)** - Blockchain node architecture and consensus
+5. **[5_marketplace-web.md](./5_marketplace-web.md)** - Marketplace web application architecture
+6. **[6_trade-exchange.md](./6_trade-exchange.md)** - Trade exchange and matching engine
+7. **[7_wallet.md](./7_wallet.md)** - Wallet architecture and key management
+8. **[8_codebase-structure.md](./8_codebase-structure.md)** - Codebase organization and module structure
+9. **[9_full-technical-reference.md](./9_full-technical-reference.md)** - Complete technical reference
+
+### **Specialized Architecture**
+
+- **[edge_gpu_setup.md](./edge_gpu_setup.md)** - Edge computing and GPU setup architecture
+
+## 🎯 **Quick Start**
+
+### **For New Developers**
+Start with these documents in order:
+1. [2_components-overview.md](./2_components-overview.md) - Understand the big picture
+2. [1_system-flow.md](./1_system-flow.md) - Learn how data flows through the system
+3. [8_codebase-structure.md](./8_codebase-structure.md) - Navigate the codebase
+
+### **For System Architects**
+Focus on these documents:
+1. [3_coordinator-api.md](./3_coordinator-api.md) - API architecture
+2. [4_blockchain-node.md](./4_blockchain-node.md) - Blockchain architecture
+3. [9_full-technical-reference.md](./9_full-technical-reference.md) - Complete technical details
+
+### **For Infrastructure Engineers**
+Review these documents:
+1. [edge_gpu_setup.md](./edge_gpu_setup.md) - Edge computing setup
+2. [6_trade-exchange.md](./6_trade-exchange.md) - Exchange infrastructure
+3. [7_wallet.md](./7_wallet.md) - Wallet infrastructure
+
+## 🔗 **Related Documentation**
+
+- **[../README.md](../README.md)** - Main documentation index
+- **[../MASTER_INDEX.md](../MASTER_INDEX.md)** - Master documentation index
+- **[../blockchain/](../blockchain/)** - Blockchain-specific documentation
+- **[../contracts/](../contracts/)** - Smart contract documentation
+- **[../deployment/](../deployment/)** - Deployment and infrastructure
+
+## 📊 **Architecture Overview**
+
+### **System Components**
+
+```
+┌─────────────────┐    ┌─────────────────┐    ┌─────────────────┐
+│  Coordinator    │    │  Blockchain     │    │  Marketplace    │
+│  API (8011)     │◄──►│  Node (8006)    │◄──►│  Web (8001)     │
+└─────────────────┘    └─────────────────┘    └─────────────────┘
+        │                      │                      │
+        └──────────────────────┴──────────────────────┘
+                               │
+                    ┌───────────┴───────────┐
+                    │                       │
+              ┌─────┴─────┐         ┌─────┴─────┐
+              │  Wallet   │         │  Exchange │
+              │  Service  │         │  Service  │
+              └───────────┘         └───────────┘
+```
+
+### **Key Technologies**
+
+- **Blockchain**: Custom AITBC blockchain with Proof-of-Stake consensus
+- **API**: FastAPI-based coordinator API
+- **Frontend**: React-based marketplace web application
+- **Wallet**: Python-based wallet service with cryptography
+- **Exchange**: Matching engine for token trading
+- **Edge Computing**: GPU resource management for AI workloads
+
+## 🚀 **Development Workflow**
+
+### **Adding New Architecture Documents**
+
+1. Create new markdown file in this directory
+2. Follow naming convention: `number_title.md`
+3. Update this README to include the new document
+4. Add cross-references to related documents
+5. Commit and push changes
+
+### **Updating Architecture Documents**
+
+1. Make changes to the relevant document
+2. Update cross-references if needed
+3. Update version number and date
+4. Commit with descriptive message
+5. Sync changes across all nodes
+
+## 📝 **Documentation Standards**
+
+- **Format**: Markdown with proper heading hierarchy
+- **Diagrams**: Use ASCII art or mermaid for diagrams
+- **Code Examples**: Include working code snippets
+- **Cross-References**: Link to related documents
+- **Version Control**: Track document versions and dates
+- **Language**: English, clear and concise
+
+## 🔍 **Search and Navigation**
+
+### **Finding Specific Information**
+
+- Use the [MASTER_INDEX](../MASTER_INDEX.md) for comprehensive navigation
+- Search within this directory for specific topics
+- Follow cross-references between documents
+- Check the table of contents in each document
+
+### **Document Categories**
+
+- **System Architecture**: Overall system design and components
+- **Component Architecture**: Individual component details
+- **Infrastructure**: Deployment and infrastructure setup
+- **Integration**: Component integration and communication
+- **Reference**: Complete technical reference material
+
+## 📞 **Support and Contributions**
+
+### **Getting Help**
+
+- Check the [main documentation README](../README.md)
+- Review the [MASTER_INDEX](../MASTER_INDEX.md)
+- Search existing issues in the repository
+- Contact the development team
+
+### **Contributing**
+
+1. Fork the repository
+2. Create a feature branch
+3. Make your documentation changes
+4. Test links and cross-references
+5. Submit a pull request
+
+---
+
+**Last Updated**: 2026-05-08  
+**Version**: 1.0  
+**Status**: Active documentation