Junction
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Connect · Construction accounting and ERP

Sage 300 CRE MCP server: connect Sage 300 CRE to Claude and ChatGPT

Junction is an MCP server for Sage 300 Construction and Real Estate. Sage 300 Construction and Real Estate (formerly Timberline) is a long-established construction accounting system whose data is typically read over a 32-bit ODBC driver.
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Through the Junction agent

How Junction connects to Sage 300 CRE

Sage 300 CRE is usually reached only from the machine it runs on, through a 32-bit ODBC driver. The Junction agent is installed on that server, copies the tables it needs into a local file every 15 to 60 minutes, and answers questions from the copy, so the live system is never queried. Every answer shows when the data was last copied.

Questions you could ask about Sage 300 CRE

  • “Which jobs have costs ahead of billings?”
  • “What is the status of every open subcontract?”
  • “Which vendors are owed more than 60 days?”

Answers come from your own system, with the source rows and the time the data was last updated.

What to know

  • This is the case other AI connectors tend to skip: older on-premise systems with no cloud API.
  • The agent connects outward only. You open no inbound ports.

Frequently asked questions

Is there an MCP server for Sage 300 CRE?
Yes. Junction is an MCP server that connects Sage 300 Construction and Real Estate to Claude and ChatGPT. We set it up with you and check the answers against your own reports.
Does Sage 300 CRE work with Claude or ChatGPT?
Not directly. A Junction agent on your Sage server reads a copy of the data, and Junction answers questions from it when your Claude or ChatGPT asks.
How fresh is the data?
As fresh as the last copy, usually within 15 to 60 minutes. Every answer says when the data was last updated.
What do I install?
A small program on the server that has the Sage ODBC driver. It dials out to Junction, runs only queries it builds from a signed data model, and can be switched off from your portal.

Run Sage 300 CRE? Tell us.

We set each system up with you and check the answers against your own reports.

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Sage 300 Construction and Real Estate is a product of Sage. Junction is not affiliated with, endorsed by or sponsored by Sage; product names are used only to describe compatibility.