A desktop AI assistant that plugs into tools, files, and major LLMs

What it does 5ire is a cross-platform desktop application that acts as both a chat interface and an MCP client. It connects to a wide roster of providers—OpenAI, Azure, Anthropic, Google, Mistral, Doubao, Grok, DeepSeek, and Ollama—while letting you bookmark conversations, search chat history, and track API spending. The app also bundles a local knowledge base that parses and vectorizes Word, Excel, PowerPoint, PDF, and CSV files for on-device RAG using the bge-m3 embedding model.

The interesting bit The project leans into the Model Context Protocol as a “USB-C port for AI,” letting you plug in external tools for file-system access, databases, and remote data without rebuilding the client. It also maintains its own open marketplace, MCPSvr, for discovering and sharing MCP servers.

Key highlights

• Supports OpenAI, Azure, Anthropic, Google, Mistral, Doubao, Grok, DeepSeek, and Ollama
• Local RAG pipeline with bge-m3 embeddings for multilingual search across docx, xlsx, pptx, pdf, txt, and csv
• Built-in MCP client with tools and prompts support, plus a companion server directory (MCPSvr)
• Usage analytics to monitor API spend across conversations
• Prompt library with variable support, bookmarks, and full-text search across chat history

Caveats

• Activating the tools feature requires Python, Node.js, and uv to be present, since they constitute the MCP server runtime
• Native dependencies mean the app must be packaged per-platform, and macOS builds may need Apple notarization credentials to avoid security warnings

Verdict Developers who want a single desktop hub for multiple LLM providers, local document Q&A, and extensible tool use via MCP should take a look. If you need a zero-dependency, browser-only experience, this is not it.