Jourier builds a Model Context Protocol server over your Data Hub and points ChatGPT at it. ChatGPT calls typed tools rather than reading a spreadsheet somebody pasted into the prompt: search, read, query. Every response is deterministic and every figure resolves to rows you can open.

The MCP server reads the same modelled layer that feeds your dashboards. One definition, many consumers, so ChatGPT answers with the numbers your team already sees rather than a second version of them.

Access is scoped to what that user is allowed to see, and the connection is read-only unless you ask for otherwise. Self-hosted models are available, so your data never leaves the EU.

MCP is an open protocol for letting an assistant call a real tool instead of guessing. Jourier exposes each connected system as a set of typed tools, so the model retrieves the number rather than composing it. That is the whole reason the answer can be trusted: the model never computes the figure, so it cannot invent one. Jourier does not resell ChatGPT; your contract stays where it is.

Does ChatGPT see all of my data?

No. Access is scoped per user, to exactly what that person is allowed to see in the underlying systems. The MCP server enforces it rather than trusting the model to respect it.

Can ChatGPT change anything in my systems?

Not by default. The connection is read-only. Write tools exist and can be added deliberately, per system and per user, but nothing is writable unless you ask for it.

Can ChatGPT invent a number?

It retrieves rather than computes, so a figure in an answer came from a row. That row can be opened. This is the whole reason for using tools instead of pasting exports into a prompt.

Does my data go to OpenAI?

That depends on which model you run. With hosted ChatGPT, the retrieved rows form part of the conversation. Self-hosted models are available for teams that need the data to stay on EU infrastructure, and Jourier hosts in Finland.

Which clients does this work with?

Any MCP-compatible client, which now includes ChatGPT alongside Claude Desktop and Cursor. MCP is an open protocol, so one server serves all of them.

Does this require ChatGPT specifically?

No. The same MCP server serves Claude and any other compatible client. Jourier does not resell model access, so your contract stays with whoever provides it.

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