cc-multi-cli-plugin

One Claude Code session. Your models. Their native tools.

Multi brings external models and coding harnesses into one Claude Code session through the /model picker and provider workers started from the Agent tool, with each provider's own login and permissions. Providers are OpenAI (ChatGPT via Codex login), Cursor (official SDK), OpenCode Zen (API key), Antigravity (official CLI), and Grok (official Grok Build CLI).

Quick start · Providers · Documentation · Contributing · Changelog

Illustration of the multi-provider workflow, edited from a live Luna terminal capture; not a recording of a mixed-provider run. Asset provenance.

Why Multi?

• Choose your model in place. Switch through /model and select supported reasoning effort with /effort.
• Delegate to provider workers. Run a provider's own model from the Agent tool (multi-openai, multi-cursor, multi-zen, multi-antigravity, multi-grok); native actions appear as tool rows under the harness's own tool names, with elapsed time and cancellation.
• Keep native execution. OpenAI and Zen use Claude Code's tools; Cursor, Antigravity and Grok run their own SDK or CLI tools.
• Carry your session forward. Resume saved sessions while keeping provider credentials and native state separate.
• Stay in control. Claude's permission mode and explicit tool restrictions govern provider dispatch.

Install

In Claude Code, add the marketplace and install the providers you want:

/plugin marketplace add greenpolo/cc-multi-cli-plugin
/plugin install multi-openai@cc-multi-cli-plugin
/plugin install multi-cursor@cc-multi-cli-plugin
/plugin install multi-zen@cc-multi-cli-plugin
/plugin install multi-antigravity@cc-multi-cli-plugin
/plugin install multi-grok@cc-multi-cli-plugin
/reload-plugins
/multi-core:setup

Install any subset; each provider pulls in the shared multi-core plugin. Open a new terminal, run claude-multi, and connect the providers you installed:

Providers

Plugin	Command	What it gives you
multi-openai	/multi-openai:login	ChatGPT models through Codex
multi-cursor	/multi-cursor:login	Official Cursor SDK models and workers
multi-zen	/multi-zen:connect	OpenCode Zen models with an API key
multi-antigravity	/multi-antigravity:connect	Antigravity models and workers through agy
multi-grok	/multi-grok:login	Grok models and workers through Grok Build

multi status shows installed/enabled providers; it does not test login or inference. multi uninstall removes the shell integration and keeps provider logins. Plain claude stays unchanged unless you explicitly choose --command claude. Rename the launch command or trim the /model rows with /multi-core:setup --command <name> --models <ids>. Details: installation.

Installing with a coding agent

Paste this into any coding agent: