Hello! I made MultiClaude, a fork of CC Switch focused on Claude Desktop and Claude Science: https://github.com/iaa2005/multi-claude
What it adds:
- Aggregation for Claude Desktop. Desktop sees one gateway, but the model picker shows models from several providers at once (e.g. DeepSeek, Xiaomi MiMo, OpenRouter, a local model). Add or remove a provider and the list updates without restarting Desktop. Each model is listed once, the reasoning effort picker works, and Direct mode returns Desktop to your claude.ai account.
- Claude Science support. Routing or Aggregation through a third-party provider, Direct for the official account. Your model settings are saved per mode and restored when you switch back.
- Separate usage stats for Claude Desktop and Claude Science, priced at the real model.
- Claude Code + DeepSeek fix: no more
422 unknown variant tool_definitionwhen an MCP server connects mid-session. - Russian UI, its own auto-updates, and a separate data folder, so it runs alongside the original CC Switch.
Limitation: a Claude subscription can't be mixed into Desktop's aggregation. Third-party providers use their own API keys; Claude itself via an API key works.
Windows build (installer or portable exe) is in Releases. Feedback and issues welcome!