Add the connector
1
Enable developer mode
In ChatGPT, open Settings → Connectors → Advanced and turn on Developer mode. On Team and Enterprise workspaces an admin may need to allow it.
2
Create the connector
Back in Connectors, choose Create. Name it and select OAuth as the authentication method. Leave client id and secret empty; ChatGPT registers itself with the authorization server.
NextLevel MCA, set the MCP server URL to:3
Sign in
Enter your work email on the NextLevel MCA page, open the magic link from your inbox (single use, 10 minutes), pick a location if you have more than one, and approve the scopes on the consent screen.
4
Use it in a chat
Start a new chat, open the tools menu, and enable the NextLevel MCA connector. Then ask in plain language; see example prompts.
Write tools need write scopes
The consent screen lists every scope with a checkbox ticked by default. Read tools (get_deal, get_recommended_lenders, get_statement_analysis and the rest) need the :read scopes; write tools (submit_deal, request_documents, send_merchant_portal, log_offer, move_deal_stage, create_deal, update_deal, set_primary_offer, add_note, create_task) need the matching write scope from the tool table. A tool whose scope was unticked is still listed but returns a clear error naming the scope; reconnect and leave it ticked.
ChatGPT asks for confirmation before running write tools. Keep that on: submit_deal, request_documents and send_merchant_portal send email or text messages.