e-Builder API
e-Builder (now Trimble Unity Construct) is a cloud capital program and construction project management platform for owners, spanning capital planning, cost management, bidding, document control, scheduling, and business process automation. Its REST API exposes transactional integrations, but access is gated behind admin-issued API keys and daily call limits. An unofficial API lets you programmatically pull projects, budgets, commitments, invoices, processes, documents, and schedules—and push updates like cost transactions, process actions, and document uploads back into e-Builder.
What is e-Builder?
e-Builder (now rebranded as Trimble Unity Construct) is a cloud-based capital program and construction project management platform built for owners, delivering digital project delivery across the entire asset lifecycle. Capital program owners use e-Builder to plan and fund capital projects, run bidding, control cost and schedule, manage documents, automate approval workflows, and hand assets over to operations—coordinating teams from planning through closeout on a single platform.
Core product areas include:
- Capital Planning (project prioritization, funding allocation, portfolio management)
- Cost Management (budgets, commitments, invoices, change orders, forecasting)
- Bidding Management (solicitation, vendor responses, award)
- Document Management (centralized, role-based document control)
- Business Process Automation (configurable approval and review workflows)
- Schedule Management (Gantt views, milestone and schedule reporting)
- Reports and Dashboards (configurable, real-time KPI visibility)
Common data entities:
- Projects, Programs, Portfolios, Capital Plans
- Budgets, Commitments, Invoices, Change Orders, Cash Flow
- Processes, Process Instances, Workflow Steps, Approvals
- Documents, Folders, Attachments, Revisions
- Schedules, Tasks, Milestones, Bid Packages
- Companies, Contacts, Roles, Account Users
The e-Builder Integration Challenge
Owners run mission-critical capital programs on e-Builder, but turning its module-driven workflows into reliable API-driven automation is non-trivial:
- Admin-gated API access: API keys are issued only by account administrators to a dedicated system user with full administrative permissions, subject to an Acceptable Use Policy
- Daily call limits: The base subscription caps at 15,000 API calls per day (30,000 on an enhanced tier), resetting at UTC midnight—exceeding it returns a 426 response
- Module-by-module endpoints: Endpoints are grouped by module, so coverage and object shapes vary across Cost, Documents, Processes, Schedule, and Bidding
- Account-specific configuration: Custom processes, fields, and cost structures are tailored per owner, so generic integrations break across accounts
- Process workflow complexity: Cost transactions and approvals move through configurable business-process workflows that require precise step and reason-code handling
- Document and revision handling: Centralized, role-based document control needs careful upload/download, folder, and revision management
How Supergood Creates e-Builder APIs
Supergood reverse-engineers authenticated sessions and e-Builder's REST API surface to deliver a resilient API layer for your e-Builder (Trimble Unity Construct) account—across Cost, Capital Planning, Documents, Processes, and Schedule.
- Handles API-key and authenticated session flows securely, including MFA where carrier accounts require it
- Maintains session continuity with automated refresh and rate-limit-aware throttling to stay under daily call caps
- Normalizes responses across Cost, Documents, Processes, and Schedule modules so you integrate once and rely on consistent objects
- Aligns with account-specific processes, custom fields, and cost structures to ensure compliant access
Use e-Builder with AI agents: e-Builder MCP Server →
Getting Started
- Schedule Integration Assessment
Book a 30-minute session to confirm your modules, account configuration, and authentication model.
- Supergood Generates and Validates Your API
We deliver a production-ready e-Builder adapter tailored to your account configuration and entitlements.
- Deploy with Monitoring
Go live with continuous monitoring and automatic adjustments as e-Builder evolves.
API Endpoints
Authentication
/authenticateAuthenticate to an e-Builder (Trimble Unity Construct) account using an API access key and obtain a session token for downstream calls.
Projects
/projectsList projects, programs, and capital plans with filters for status, owner, portfolio, and date range.
Cost
/budgetsRetrieve budgets, commitments, invoices, change orders, and cash-flow records across the Cost module.
Cost
/create_cost_transactionPost a cost transaction such as an invoice, commitment, or change order against a project budget line.
Processes
/processesPull process instances, workflow steps, and approval status from the business process automation module.
Documents
/upload_documentUpload a document into a project folder with revision and role-based access metadata.
Use Cases
Sync project and cost data into your warehouse
- Pull projects, budgets, commitments, and invoices from the Cost module into a single warehouse - Stream change-order and cash-flow updates to downstream BI and finance tools - Reconcile capital plan and portfolio records for unified program reporting
Automate cost transactions and approvals
- Push invoices, commitments, and change orders into projects without portal clicks - Advance business-process workflows and capture approvals programmatically - Route exceptions and rejections back to your ERP or accounting system
Keep documents and schedules in sync
- Upload and version project documents through role-based folders - Pull schedule tasks, milestones, and Gantt data for downstream planning tools - Trigger notifications when documents or milestones change
Integrate e-Builder with ERP and accounting
- Mirror budgets, commitments, and invoices between e-Builder and your ERP - Match vendor and company records across systems - Reconcile cash flow and forecast data on a scheduled cadence
Technical Specifications
Authentication
API access key issued to a dedicated system user, handled in a managed session
Connectivity
e-Builder's REST API (JSON payloads) plus authenticated session flows where endpoints are not exposed
Response format
Normalized JSON across Cost, Projects, Documents, Processes, and Schedule objects
Rate limits
Adaptive throttling tuned to the 15,000 (or 30,000 enhanced) daily call cap, resetting at UTC midnight to avoid 426 responses
Session management
Automatic session refresh, key rotation, and rate-limit header tracking
Data freshness
Near real-time pulls for projects, cost, and processes with optional scheduled batch syncs
Security
Encrypted credential vault, scoped access tokens, SOC 2-aligned controls, and audit logging
Webhooks
Event-style callbacks for cost transactions, process step changes, document uploads, and milestone updates
Latency
Sub-second reads on cached entities; multi-second writes when posting through cost and process workflows
Throughput
Horizontally scaled workers sized to multi-project capital program volume within daily call limits
Reliability
Retry, backoff, and idempotency keys for cost transactions and process actions
Adaptation
Continuous monitoring of e-Builder / Trimble Unity Construct releases and account-specific configuration drift
Frequently asked questions
Yes. e-Builder is being rebranded as Trimble Unity Construct, and Supergood works against the same authenticated surfaces and REST API regardless of the branding shown in your account.
e-Builder grants API access keys through account administrators to a dedicated system user. Supergood works with your existing entitlements and authenticated sessions, and can operate against either the REST API or authenticated surfaces where endpoints are not exposed.
Supergood is rate-limit aware. It tracks the response headers for your remaining calls and reset time, throttling adaptively to stay under the 15,000 or 30,000 daily cap and avoid 426 rate-limit responses.
Cost, Capital Planning, Bidding, Document Management, Business Process Automation, and Schedule are exposed through one normalized API surface, so project, budget, process, document, and schedule entities sit together.
Each account is profiled against its configured processes, cost structures, and custom fields. Supergood preserves account-specific fields and workflow states rather than forcing a generic schema.