Construction & Infrastructure

The Integration Layer
for Construction

The average construction firm uses 10–15 different software applications per project — project management, accounting, scheduling, estimating, safety, BIM. Most don't talk to each other. Field data reaches the office days late. Budget-impacting changes slip through the cracks.

Connect Your Stack

Why Construction Integration Is Uniquely Hard

Generic integration platforms weren't built for this industry. Here's what they miss.

Three-Tier Software Stack

Construction software spans cloud (Procore, Autodesk Build), hosted on-premise (Viewpoint Vista), and legacy desktop (Sage 300 CRE). Generic iPaaS platforms only handle the cloud tier, leaving the most critical financial systems disconnected.

Domain-Specific Data

Cost codes, WBS structures, submittals workflows, AIA billing formats — construction has specialized data models that generic automation tools don't understand. A change order isn't just a form; it cascades through scheduling, accounting, and subcontractor billing.

Field-to-Office Gap

Daily logs, safety inspections, progress photos, and RFIs are captured in the field but don't flow automatically to project controls and accounting. Manual re-entry introduces errors and delays.

How OneHazel Solves It

Purpose-built integration infrastructure for construction technology.

AI-Powered Connector Generation

Point our AI agent swarm at any construction vendor's API docs. Seven specialized agents analyze endpoints, detect auth, generate OpenAPI specs, map to a canonical project data model, build connectors, validate, and fix issues — automatically.

Universal Gateway

One API call handles translation between your PM system, accounting ERP, scheduling tool, and field apps. Auth, schema translation, circuit breaking, rate limiting — all handled. Your platform talks to OneHazel; we talk to every vendor.

Canonical Project Data Model

Projects, cost codes, change orders, submittals, daily logs — normalized into a unified schema. Switch from one PM tool to another without rebuilding your reporting or accounting integrations.

Event-Driven Project Workflows

When a change order is approved in Procore, automatically update the budget in Sage, notify the subcontractor, and adjust the schedule. Cross-system automation without custom code.

Key Integrations

Connect the tools your teams already use — from field to back office.

Project Management

Procore Autodesk Build PlanGrid Fieldwire

Accounting / ERP

Sage 300 CRE Sage 100 Contractor Viewpoint Vista Foundation Software

Scheduling

Oracle Primavera P6 Microsoft Project

Estimating

PlanSwift Bluebeam Revu ProEst

Safety & Compliance

SafetyCulture (iAuditor) ComplianceQuest

Equipment & Payroll

EquipmentShare HCSS Paylocity

What You Save

The difference between stitching integrations together yourself and having a purpose-built layer.

Without OneHazel

  • Manual double-entry between PM and accounting systems
  • Change orders take days to cascade through all systems
  • Dedicated IT staff to maintain each integration
  • Vendor switches require months of rebuild

With OneHazel

  • AI generates connectors from vendor API docs in minutes
  • Change orders cascade automatically across all connected systems
  • One unified API replaces point-to-point connections
  • Swap vendors by changing a connector — zero rebuild

Start connecting your construction stack

From project management to accounting to field operations — one integration layer that understands construction.

Launch App

OneHazel

The Vertical iPaaS for Data Intelligence.