Claude Code
Connect Claude Code to Scrimba and it writes explainers itself, using your actual repository. That means it can explain things no general model knows:
Connect with the magic link
Add Explain to ClaudeOpens Claude with the Explain connector prefilled, ready to confirm.The link opens Claude's Add custom connector dialog with the name and URL filled in. From there:
Check the URL. Claude warns you about any connector that came from a link rather than from its own directory, and asks you to check the name and URL first. Confirm it reads
https://scrimba.com/explain/mcp.Leave Authentication on None. Claude works that out on its own, and Explain has no sign-in step.
The second warning
Claude notes here that anyone with the URL can reach a server that asks for no credentials. Explainers you create start as private drafts, and one becomes yours when you open its link and sign in to Scrimba.
Leave the request headers empty. Explain takes no API key.
Click Add. Claude opens the connector's page, with a Tool permissions section.
Set Write/delete tools to Always allow. That group holds the four tools Explain uses to build a lesson.
The four tools
| Tool | What it does |
|---|---|
| Start explainer stream | Opens a new explainer and hands back its link |
| Append explainer chunk | Streams the next part of the lesson into it |
| Finish explainer stream | Closes the lesson |
| Create playlist | Groups several explainers into a course |
A lesson streams in piece by piece, so anything stricter than Always allow means Claude interrupts you for permission over and over while it writes. More tools will appear here over time, and the same setting covers them.
Start using it
Claude reaches for Explain on its own once you ask:
The connector lives on your account, so it works in Claude Code as well as on claude.ai.
Or connect with a command
claude mcp add --transport http scrimba-explain https://scrimba.com/explain/mcpThis route skips the dialog. Claude Code asks about tool permissions in the terminal the first time it reaches for Explain.
Either way, from your next session Claude Code can create explainers whenever you ask.
How it works
When you ask for an explainer, Claude Code plans the lesson, then streams it to Scrimba slide by slide: narration script, code excerpts, diffs, diagrams. You get a link as soon as the stream starts.
The draft it creates is private: nobody else can see it, and the link alone isn't enough to watch it. Opening the link signs you in to Scrimba and claims the explainer as yours. From that point it's in your account and you decide who else can see it. See Privacy, claiming and sharing.
Creating the draft is free: Claude Code authors the lesson, so no Scrimba AI generation is involved. Narration and images are generated when you claim it and watch.
Other agents
Codex and every other MCP-capable tool can connect to the same server. See The MCP server.