Connect NiceNIC MCP to ChatGPT
NiceNIC MCP lets ChatGPT check ドメイン availability through the NiceNIC ドメイン サービス. This guide shows how to add the MCP server to ChatGPT と run a safe availability check.
Befまたはe you start
- サインイン to ChatGPT.
- Use a ChatGPT account that can access Developer mode と custom apps/plugins.
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Have the NiceNIC MCP server URL ready:
https://mcp.nicenic.com/mcp.
Safety note: The example below checks availability only. It does not 登録 または 購入 a ドメイン, change DNS, または submit billing infまたはmation.
1. 開く ChatGPT
開く ChatGPT と start a new chat.
2. Enable Developer mode
- 開く the account menu in the lower-left cまたはner.
- Select Settings.
- 開く Security と login.
- Turn on Developer mode if it is disabled.
Developer mode is required befまたはe ChatGPT will accept a custom MCP app/plugin.
3. 開く Plugins と start a custom app
- In the left sidebar, select Plugins.
- On the Plugins page, click the + button.
- Choose 作成 app (または the equivalent custom app option shown in あなたの account).
4. Enter the NiceNIC MCP details
In the new app fまたはm, enter a name such as NiceNIC ドメイン MCP. The name can be any clear label you prefer.
Fまたは the server/connection URL, enter:
https://mcp.nicenic.com/mcp
Keep the connection type と authentication settings at their defaults unless ChatGPT asks fまたは a different value.
5. 作成 the app
Review the name と server URL, then click 作成. ChatGPT will add the NiceNIC MCP app to あなたの account.
6. サインイン と authまたはize access
When ChatGPT opens the NiceNIC authまたはization page:
- サインイン to あなたの NiceNIC account.
- Review the requested access.
- クリック Authまたはize to allow ChatGPT to use the MCP connection.
Do not share あなたの passwまたはd または verification codes in the chat. The authまたはization page hとles sign-in securely.
7. Select NiceNIC MCP in a chat
戻る to the ChatGPT composer と click the + button. Select NiceNIC ドメイン MCP from the available apps/plugins.
You can also leave it unselected と ask a ドメイン question directly; ChatGPT may call the enabled MCP app when it is relevant.
8. 確認 a ドメイン's availability
Send a request such as:
確認 whether nicenicmcpdemo.com is available. Do not 登録 または 購入 it.
ChatGPT will call NiceNIC MCP と return the availability result in the conversation.
Verify the connection
The setup is complete when ChatGPT returns a ドメイン availability result と identifies NiceNIC MCP as the tool used. もし the app is missing, revisit Settings > Security と login to confirm Developer mode is enabled, then check the Plugins page と repeat authまたはization.
Quick reference
https://mcp.nicenic.com/mcp
NiceNIC Domain MCP
nicenicmcpdemo.com






