Connect · Owner-side capital program management
e-Builder MCP server: connect e-Builder to Claude and ChatGPT
Junction is an MCP server for e-Builder (Trimble Unity Construct). e-Builder, now Trimble Unity Construct, is capital-program and project-delivery software used by owners such as school districts, hospitals and government agencies.

Direct connection
How Junction connects to e-Builder
e-Builder offers a REST API with a key issued by an administrator. Junction reads through it, within the daily call limits the service enforces, and never writes.
Questions you could ask about e-Builder
- “Which capital projects are over their approved budget?”
- “What are the open change orders on each program?”
- “Which invoices are waiting for approval the longest?”
Answers come from your own system, with the source rows and the time the data was last updated.
What to know
- Owner-side systems like this are one place Junction differs from contractor-only connectors.
- The API has a daily call limit, so answers are cached briefly.
Frequently asked questions
- Is there an MCP server for e-Builder?
- Yes. Junction is an MCP server that connects e-Builder (Trimble Unity Construct) to Claude and ChatGPT. We set it up with you and check the answers against your own reports.
- Is this only for contractors?
- No. Owners and owner's representatives use e-Builder and Owner Insite, and Junction is built to include them.
- Will heavy use hit e-Builder's limits?
- Junction rate-limits its calls and caches answers briefly to stay within them, and tells you plainly when a limit is reached.
Run e-Builder? Tell us.
We set each system up with you and check the answers against your own reports.
Reach out to salese-Builder (Trimble Unity Construct) is a product of Trimble. Junction is not affiliated with, endorsed by or sponsored by Trimble; product names are used only to describe compatibility.