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Assistant setup

Connect ChatGPT to GoblinStudio

GoblinStudio has a small built-in assistant connection. Once it's linked, ChatGPT (or Claude) can look up the mods, the GoblinFlat residents, the episode concepts and the series setup — read-only, and only after you sign in.

  1. Publish the site once

    ChatGPT has to reach the sign-in page from the open internet. As long as the site only exists as a preview, registration fails with “invalid client”. Publishing fixes that — nothing else needs changing.

  2. Open the connector settings in ChatGPT

    Settings → Connectors → Add custom connector (in Claude: Settings → Connectors → Add custom connector). Choose the option for an MCP server URL.

  3. Paste the MCP URL

    Use the /mcp address below as the server URL. A name and description are optional — the server sends its own.

  4. Sign in and approve

    ChatGPT sends you to the GoblinStudio approval page. Sign in with Google, press Approve, and you land back in ChatGPT with the connector ready.

  5. Try it out

    Ask something like “list the GoblinStudio mods” or “who lives in GoblinFlat?”. The assistant now reads straight from this site.

Addresses to copy

MCP server URL

https://goblin-hearth-haven.lovable.app/mcp

This is the only address you paste into ChatGPT. Use exactly this published address — the internal editor addresses (…lovableproject.com or id-preview--…) are not reachable as an MCP server.

Approval page (opens by itself)

https://goblin-hearth-haven.lovable.app/.lovable/oauth/consent

ChatGPT sends you here during sign-in. You never need to open it by hand — it's listed so you can recognise it.

What the assistant can and can't do

  • Reads the mod list, residents, episode concepts and the series setup.
  • Nothing can be changed, created or deleted through the connection.
  • Access needs a sign-in every time — no login, no data.
  • You can remove the connector in ChatGPT at any point.

If it says “invalid client”

That message almost always means ChatGPT couldn't reach the sign-in page — usually because the address used was the preview one, or the site wasn't published yet. Publish the site, copy the /mcp address from this page while viewing the published site, remove the half-finished connector in ChatGPT, and add it again.