{"type": "article", "title": "Building a RAG System from Scratch — MCP: Exposing pgvector as a Reusable Tool Server", "publisher": "Web Pulse", "url": "https://wpnews.pro/news/building-a-rag-system-from-scratch-mcp-exposing-pgvector-as-a-reusable-tool", "original_source": "https://dev.to/hiroki-kameyama/building-a-rag-system-from-scratch-mcp-exposing-pgvector-as-a-reusable-tool-server-2onc", "published": "2026-06-27T22:17:47+00:00", "accessed": "2026-06-28", "id": "building-a-rag-system-from-scratch-mcp-exposing-pgvector-as-a-reusable-tool"}