e-Builder API
Trimble Unity Construct (e-Builder) documents a REST API to OpenAPI 3.0 covering Projects, Cost, Documents, and Schedules, authenticated via Trimble Identity OAuth 2.0. Access is account managed rather than self-serve, and every API user must be a full admin system account.
Frequently asked questions
e-Builder scores D on the API Report Card. Trimble Unity Construct (e-Builder) documents a REST API to OpenAPI 3.0 covering Projects, Cost, Documents, and Schedules, authenticated via Trimble Identity OAuth 2.0. Access is account managed rather than self-serve, and every API user must be a full admin system account.
Without a usable official API, teams fall back on manual exports, file drops, or one-off vendor integrations. The other option is an unofficial API layer like Supergood that automates the authenticated web app directly.
e-Builder (rebranded Trimble Unity Construct in 2023) is a cloud-based capital program and project delivery platform purpose-built for facility owners and public-sector capital programs.
Vertical: Construction, with a deliberate owner-side / capital-program focus rather than the general-contractor focus of Procore or the EPC focus of Aconex. Program managers in an owner's capital project office use Trimble Unity Construct as the daily system of record: setting up the portfolio, allocating funding sources (bonds, grants, operating capital), initiating projects, and approving major budget and contract actions.
8/10 in its target segment.
Yes, for the owners that use it, Trimble Unity Construct is the contractual and financial system of record for the entire capital program.
Founded 1995 in Fort Lauderdale, Florida by Jonathan Antevy and Ron Antevy as one of the first internet-based construction PM products. Operated as a private, owner-side-focused PMIS for over two decades.
Base subscription caps API usage at 15,000 calls/day, which is restrictive for any multi-project portfolio sync; raising to 30,000/day requires a commercial conversation with the account team. Exceeding the daily limit returns HTTP 426 rather than the standard 429, breaking many off-the-shelf retry/backoff libraries. Full sourced list under Sources below.
Common alternatives include Kahua, Oracle Primavera Unifier, Oracle Aconex, Procore Technologies, Autodesk Construction Cloud, Aurigo Masterworks. Graded alternatives appear under "More from the report card" below.
Grades measure one thing: can a customer's engineering team get their own data out programmatically? We check six things (whether a real API exists, how access is gated, data coverage, auth quality, docs and developer experience, and stability) and roll them into a letter grade. Grades get re-verified, and they only move on evidence.
Yes. Supergood maintains an unofficial e-Builder API and MCP server so AI agents and internal tools can read and write e-Builder data. See the e-Builder integration docs at supergood.ai/docs/e-builder-api.