ChatGPT connector
Connect your campaign to ChatGPT
ChatGPT reads every character's full sheet, your prep and the fight in progress, and can save to your prep sheet, NPCs and encounters. Every change can be undone.
https://dndgadgets.com/mcp
Copy this address, then follow the steps below to add it to ChatGPT.
Add it to ChatGPT
Adding your own MCP server works on the Plus, Pro, Business, Enterprise and Edu plans, not Free. On Business and Enterprise, an admin may need to allow it first. You also need a DnD Gadgets account to allow the connection, so start your trial first if you haven't.
- Turn on Developer Mode in ChatGPT's settings. Depending on your version it's under the Apps, Connectors or Plugins area, or under Security.
- Add a custom MCP server and paste the address from above.
- Choose OAuth if you're asked how to sign in.
- Choose Allow when DnD Gadgets asks.
ChatGPT's menus change often — if a name doesn't match, look for 'Developer mode' and 'add MCP server'.
Built to the MCP standard and tested with Claude. We haven't confirmed ChatGPT ourselves yet — if something doesn't work, tell us at support@dndgadgets.com.
What ChatGPT can read and save
Nine tools that only look, and three that save. ChatGPT should ask you before it saves anything, and it never touches your parties or character sheets.
Read
Your parties
Every party, its characters and which one is active.
Each character at a glance
Class, level, ancestry, HP, AC, saves, passive Perception and spell DC.
Full character sheets
Abilities, skills, attacks, spells, features and inventory, section by section.
What changed since last level
Each sheet's dated history: level-ups, new items, changed stats.
Your prep sheet
The hook, the beats, the planned fight and the threads still open.
Saved NPCs and more
Your saved NPCs, puzzles, dungeon rooms, improv pins and pinned rules.
Any saved item in full
One NPC, room or pinned monster with all its notes.
The fight in progress
Initiative order, HP, AC, conditions, whose turn it is and the round.
Encounter difficulty
Rates a fight against your party's real levels with the Encounter Builder's numbers.
Save
Save to your prep sheet
Sets the hook and plans, adds beats and threads, and ticks them off. It never deletes one.
Save an NPC
Keeps an NPC you worked out together in your saved NPCs, labelled with the app's name.
Plan an encounter
Puts a fight in the Encounter Builder or the Combat Tracker, rated against your party's real levels.
Ask about your table, not a generic one
Without a connection, an assistant plans for an imaginary party. With it, every answer starts from your characters' actual levels, HP, saves, spells and items.
- “Recap what changed for everyone since we last played.” From each sheet's dated history.
- “Is a young green dragon too much for them?” Rated with the Encounter Builder's numbers against their real levels.
- “Which open threads should come back next week?” From your prep sheet and your other parties.
- “Save that innkeeper as an NPC and add the bell to Friday's prep.” Saved and labelled, so you can undo it.
You
What's changed on Vraxxis since we last played — and are four ogres too much for the party?
Your assistant
Vraxxis is level 9 now: 122 HP, AC 19, and an attuned Cloak of Protection. The bell thread on your prep sheet is still open. Four ogres against your four level-9 characters rates Easy on the Encounter Builder's numbers — add a hill giant and it's Hard.
You
Save that innkeeper and add the bell to Friday's prep.
Your assistant
Done: I saved Marta Greywick to your saved NPCs and added “Who rang the bell?” to Friday's beats. Both are marked as added by the app, and you can undo either from your account page.
Questions
Which ChatGPT plans can add an MCP server?
Plus, Pro, Business, Enterprise and Edu. The Free plan can't add your own MCP server. On Business and Enterprise, an admin may need to allow it first.
Does it work with ChatGPT?
It's built to the MCP standard, which ChatGPT supports, and tested with Claude. We haven't confirmed ChatGPT ourselves yet, so if something doesn't work, tell us at support@dndgadgets.com.
Can ChatGPT change my party or sheets?
No. It can only save to your prep sheet, your saved NPCs and your encounters, and it should ask you first. Everything it saves is labelled and can be undone from your account page. It can never change your parties or character sheets.
Do I need a DnD Gadgets subscription?
Yes. The connector is part of the $3.99/month subscription, with a 7-day trial. The free tools on the site don't need one, but ChatGPT can't read your party without it.
How do I disconnect?
From your DnD Gadgets account page, at any time. ChatGPT loses access straight away.
The connector comes with the tools
The Party Manager, Combat Tracker, Encounter Builder, prep sheet and the rest are what ChatGPT reads from — twenty-one tools in one $3.99/month subscription.
Card required · cancel any time · 30-day refund on request