nexxus MCP
Work with Claude Code
What you can ask Claude Code once it is connected to nexxus, how changes are confirmed, and what an external client cannot do.
Once Claude Code is connected to nexxus, ask it in your own words about customers, projects, invoices, documents, your tasks or your company’s knowledge. Claude Code picks the tools it needs. It sees exactly what you may see in the app, and it changes nothing without asking you.
This pays off most when you work in Claude Code anyway. While coding, you check which projects of a customer are still running, have the contracts in a folder summarised, or create a record, without leaving the terminal.
How an answer comes about
Section titled “How an answer comes about”You ask
in Claude Code, in your own words
Claude Code picks tools
from those nexxus offers your account
nexxus checks
every request with your rights, like the pages of the app
You confirm
every change before it happens
Which tools Claude Code gets depends on the connectors your organisation has switched on and on your rights. MCP tools gives an overview.
What you can ask
Section titled “What you can ask”A few examples. You don’t need to know the tools; Claude Code chooses them. The right column only shows what happens behind the scenes.
| You ask | Claude Code uses |
|---|---|
| “Which kinds of records can you read in nexxus?” | nx_record_types |
| “Which projects of Brandt & Söhne are running?” | nx_partner_search, nx_record_search |
| “Show me the project Relaunch with all its details.” | nx_record_search, nx_record_get |
| “Summarise the contracts in the folder Customers.” | nx_dms_folder_list, nx_dms_document_list, nx_dms_document_text |
| “Where do we describe how travel expenses work?” | nx_knowledgeitem_search, nx_dms_content_search |
| “What is on my desk?” | nx_desk_read |
| “What is waiting for me?” | nx_desk_read, nx_notification_list, nx_ai_chats_waiting |
| “How many hours did we book per project in September?” | nx_nql_schema, nx_nql_query |
| “Add 24 December as a public holiday.” | nx_action_list, nx_action_preflight, nx_action_execute |
| “Remember in the company knowledge that quotes are valid for 30 days.” | nx_knowledgeitem_save |
| “Upload the timesheet PDF in this folder to Customers › Nordwind AG.” | nx_dms_folder_list, nx_dms_document_upload |
The last three change something, so nexxus asks you first. See below.
Confirming changes
Section titled “Confirming changes”When Claude Code wants to change something, nexxus puts the change in front of you as a question through Claude Code. For an action of the app (create, change, delete), nexxus first checks the input the way the preview card in the app does, then describes the change in its own words. For other tools, such as saving a knowledge entry, the question names the tool and every input.
- You accept or you decline. Without your yes, nothing happens.
- When several changes belong together, nexxus checks them together and asks once for all of them.
- A deletion is not ticked in advance.
- If nobody answers within 10 minutes, nothing happens.
- For an upload, the question names the file and the folder. After your yes, Claude Code sends the file itself. The link it gets takes one file and works for 10 minutes.
Connect Claude Code shows what the question looks like in Claude Code.
Good to know
Section titled “Good to know”- Name records by their name. Claude Code looks up the number itself.
- If Claude Code cannot find an area, ask which kinds of records it can read. It only sees areas you may open in the app and whose module is switched on.
- A search returns 25 hits first. Ask for more and Claude Code fetches the next ones.
- Dates come in ISO format, such as
2026-12-28. - Uploading files needs the action Create folders and documents under AIConnectorsFiles. An administrator switches it on there.
- Your conversation stays in Claude Code. It does not create a conversation with the AI Assistant in the app.
What an external client cannot do
Section titled “What an external client cannot do”- Nothing beyond your rights. What you may not open in the app, Claude Code does not see either, and it never sees other organisations on the same installation.
- No direct database access. Claude Code reads through the same paths as the pages of the app, with the same checks.
- Nothing that needs the app’s chat: open a page in your browser, create documents, tables or images in the chat, transcribe recordings or suggest connectors. The AI Assistant in the app can do that.
- NQL reports only with read access to Reports.
You see and disconnect your connections under My profileAI clients.