OpenOSINT is an AI agent for Open Source Intelligence with three interfaces: an interactive terminal REPL, a direct CLI, and an MCP server exposable to Claude Code, Claude Desktop, or any MCP-compatible client — plus a browser-based Web UI added in v2.12.0. The AI layer uses Anthropic's native tool use API (or a local Ollama model, or any OpenAI-compatible endpoint): the model issues hard stops when it needs a tool, your code executes the real binary, the actual output goes back — hallucination in tool results is structurally impossible.