AI-first file sharing and collaboration. 251 MCP tools give agents a full workspace: file storage, branded shares, comments, workflows, and built-in RAG. Free tier includes 50GB storage and 5,000 monthly credits, no credit card. Built by the team behind MediaFire. Works with Claude Desktop, Claude Code, Cursor, VS Code, Cline, and any MCP-compatible client. Connect via Streamable HTTP at https://mcp.fast.io/mcp or SSE at https://mcp.fast.io/sse. OAuth 2.0 PKCE authentication. Open source (Apache-2.0).