Claudish acts as a local Anthropic API-compatible server that intercepts Claude Code requests and routes them to different AI providers. It supports cloud services like OpenRouter (580+ models), Google Gemini, OpenAI, Kimi, GLM, and local options including Ollama, LM Studio, vLLM, and MLX. It also supports enterprise providers like Vertex AI. The tool allows developers to use their existing AI subscriptions with Claude Code instead of paying for multiple services, with an optional 100% offline mode for complete privacy.