Installing the AI Tutors Plugin in ChatGPT and Codex

aitutors.me's tutors normally live inside Claude, but the product also ships a public plugin manifest — maggielovelace/aitutors-plugin on GitHub — that backs installation into ChatGPT and Codex CLI too. The repo itself is refreshingly small: it contains only the manifest and skill metadata, not the tutors' actual server code, which lives at aitutors.me/mcp. This walkthrough covers the three real ways to install it and what each one gets you.

Before you start: what actually gets installed

The plugin repo's marketplace.json declares two things installable: the MCP connector to the tutors themselves, and two standalone skills — flashcards (MIT licensed, works without an aitutors.me subscription) and Heddy IP (proprietary brand art, needs a Gemini API key). The tutors themselves require an active aitutors.me subscription; the plugin signs you into an existing account, it doesn't create one for you.

Path 1: ChatGPT (Work plan or desktop app)

1. Open Plugins and select Add plugin marketplace.
2. Paste the repository URL as the source: https://github.com/maggielovelace/aitutors-plugin.
3. Add the marketplace, then find and Install the "AI Tutors" plugin.
4. Sign in with your aitutors.me account when prompted.

One thing worth knowing before you go looking for this in the wrong place: plugins are only available in ChatGPT Work on the web and in the desktop app — not in the regular Chat tab, not in the IDE extension, and not on mobile. If you install a plugin marketplace and can't find it, that's almost always the reason.

Path 2: Codex CLI

codex plugin marketplace add https://github.com/maggielovelace/aitutors-plugin
codex plugin add aitutors@aitutors-me
codex mcp login aitutors

The three commands do three distinct things: register the marketplace, install the specific plugin from it, and then trigger the OAuth login — the last command opens aitutors.me's sign-in page in your browser. Skipping straight to the third command without the first two won't work; the marketplace has to be registered before Codex knows where aitutors@aitutors-me refers to.

Path 3: any MCP client, without the marketplace at all

If your tool speaks MCP over OAuth but isn't ChatGPT or Codex, you don't need the plugin repo at all — connect directly to https://aitutors.me/mcp. This is the same underlying connector both marketplace paths eventually point at; the marketplace layer is a convenience for discovery and install UX, not a different product. Claude, ChatGPT, and Codex-specific step-by-step guides live at aitutors.me/install, aitutors.me/chatgpt, and aitutors.me/agent-setup respectively if you want the officially maintained instructions rather than the generic version here.

Installing just a skill, without the tutors

The two skills in the repo don't require the same install path as the tutor connector — they're plain Claude-Code-style skills with their own .claude-plugin and .codex-plugin manifests. If all you want is the flashcards skill and not the full tutoring connector, most agent tooling that supports installing individual skills from a repo path will let you point at flashcards/skills/flashcards specifically rather than pulling in the whole marketplace. Worth checking your specific tool's skill-install mechanism if you only need the one piece.

What to check once it's installed

Sessions, flashcards, and progress all save to the same account as the aitutors.me parent dashboard — so work done through the ChatGPT or Codex connector shows up in the same place as work done in Claude. If you're a parent setting this up for a child across multiple devices or apps, that shared account is the thing to verify first: sign in with the same aitutors.me account everywhere, and everything stays in one place regardless of which client the child happens to be using that day.

More tutorials on aiskill.market.