added new exchanges system

CLAUDE.md

@@ -111,6 +111,7 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co
 - `scripts/build-all.sh` - Production build with cleanup
 - `scripts/docker.sh` - Docker management
 - `scripts/format.sh` - Code formatting
+- `scripts/setup-mcp.sh` - Setup Model Context Protocol servers for database access
 
 **Documentation**:
 - `SIMPLIFIED-ARCHITECTURE.md` - Detailed architecture overview
@@ -135,6 +136,24 @@ Focus on data quality and provider fault tolerance before advancing to strategy
 - Prettier for code formatting
 - All services should have health check endpoints
 
+## Model Context Protocol (MCP) Setup
+
+**MCP Database Servers** are configured in `.vscode/mcp.json` for direct database access:
+
+- **PostgreSQL MCP Server**: Provides read-only access to PostgreSQL database
+  - Connection: `postgresql://trading_user:trading_pass_dev@localhost:5432/trading_bot`
+  - Package: `@modelcontextprotocol/server-postgres`
+
+- **MongoDB MCP Server**: Official MongoDB team server for database and Atlas interaction
+  - Connection: `mongodb://trading_admin:trading_mongo_dev@localhost:27017/stock?authSource=admin`
+  - Package: `mongodb-mcp-server` (official MongoDB JavaScript team package)
+
+**Setup Commands**:
+- `./scripts/setup-mcp.sh` - Setup and test MCP servers
+- `bun run infra:up` - Start database infrastructure (required for MCP)
+
+**Usage**: Once configured, Claude Code can directly query and inspect database schemas and data through natural language commands.
+
 ## Environment Variables
 
 Key environment variables (see `.env` example):