CMiC Construction ERP API
CMiC construction enterprise resource planning (ERP) REST API for large general contractors, heavy civil, and specialty contractors. Enables AI agents to manage job cost tracking and budget variance analysis for construction financial management, handle certified payroll and Davis-Bacon prevailing wage for public works compliance automation, access project management and owner billing (AIA) for construction project accounting, retrieve WIP (Work in Progress) schedule and overbilling analysis for construction business intelligence, manage subcontractor prequalification and compliance for risk management, handle RFI, submittal, and change management for project documentation workflow, access equipment management and cost allocation for heavy equipment fleet, retrieve union payroll and multi-trade fringe benefit management for labor compliance, manage financial consolidation for multi-entity construction enterprise reporting, and integrate CMiC with Procore, Autodesk Construction Cloud, and construction supply chain systems.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Large contractor ERP. SOC2. OAuth2/API key. US/CA. Construction financial and payroll data.
⚡ Reliability
Best When
A large general contractor, heavy civil contractor, or construction enterprise ($50M+ revenue) wanting AI agents to automate job costing, certified payroll, AIA owner billing, subcontractor compliance, WIP analysis, and multi-entity construction financial reporting.
Avoid When
CERTIFIED PAYROLL DAVIS-BACON WAGE RATE ACCURACY: CMiC automated certified payroll must apply current DOL wage determination rates by trade, county, and project type; wage rate tables in CMiC require regular refresh from DOL WD.gov; stale rates create federal back-pay liability and contract debarment risk. Union multi-trade fringe compliance — automated union payroll fringe benefit calculation must match CBA fringe schedules for each trade; automated fringe underpayment creates union trust fund delinquency and ERISA violation across multiple craft unions simultaneously. AIA overbilling — automated AIA G702/G703 percent complete entry must reflect actual work-in-place verified by project management; automated overbilling creates owner dispute, payment withholding, and contractor fraud exposure. Subcontractor compliance gate — automated subcontractor payment must check insurance certificate expiration, certified payroll submission, and lien waiver receipt before payment release; automated payment without compliance verification creates prime contractor liability.
Use Cases
- • Tracking job costs from construction ERP agents
- • Processing certified payroll from compliance agents
- • Managing AIA billing from project billing agents
- • Analyzing WIP from financial reporting agents
Not For
- • Small specialty contractors (use Foundation or eSUB)
- • Residential homebuilding (use Buildertrend or CoConstruct)
- • Non-construction businesses without job costing
Interface
Authentication
CMiC uses OAuth 2.0 and API key authentication. REST API with JSON. Toronto, Ontario HQ. Founded 1974. Private. Enterprise construction ERP for large general contractors and heavy civil. 500+ large construction enterprise customers globally. CMiC One platform combining project management and ERP. Competes with Sage 300 CRE, Trimble Viewpoint, and Foundation Software for large contractor ERP.
Pricing
Toronto Ontario. Founded 1974. Private. 500+ large contractor customers globally. Enterprise construction ERP. CMiC One unified platform. Large contractor focus ($50M+ revenue).
Agent Metadata
Known Gotchas
- ⚠ MULTI-TRADE CERTIFIED PAYROLL COMPLEXITY: CMiC certified payroll for large contractors often involves multiple crafts, multiple public works projects, and multiple prevailing wage jurisdictions simultaneously; automated payroll must apply correct DOL wage determination for each trade classification and county for each project independently; cross-project wage rate mixing creates DOL violation
- ⚠ No webhooks — job cost posting, payroll completion, and subcontractor compliance events require polling; no push notification for construction accounting event triggers; implement scheduled polling aligned with payroll and billing period
- ⚠ Subcontractor payment compliance gate — CMiC subcontractor payment workflow must include compliance hold logic for expired insurance certificates, missing certified payroll, and unsigned lien waivers; CMiC API does not enforce compliance gate automatically; implement compliance check in payment automation
- ⚠ AIA stored material verification — automated G703 stored material values must reflect owner-approved material on-site documentation; automated stored material billing without delivery confirmation and owner concurrence creates AIA billing dispute and payment withholding
- ⚠ WIP schedule overbilling detection — automated WIP analysis must flag overbilling conditions (billing > cost % complete) for project manager review before owner billing; automated overbilling without review creates AIA contract dispute and retainage withholding
- ⚠ Large transaction volume performance — CMiC API for large GC enterprise datasets (10,000+ cost codes, 500+ subcontracts) may have slower response times than typical; automated bulk data extraction must use pagination and date range filters; unbounded queries create API timeout
Alternatives
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Scores are editorial opinions as of 2026-03-07.