Jonas Construction is construction ERP software used by contractors and service companies to run accounting, job cost, service dispatch/work orders, payroll/time, inventory, equipment, and project management. An unofficial API lets you programmatically pull customers and sites, servic

Jonas Construction is an integrated construction management and service ERP for contractors. Teams use Jonas to manage accounting and job cost, dispatch technicians, handle work orders and service contracts, track inventory and equipment, run payroll and HR, and oversee project financials and WIP reporting.
Core product areas include:
Common data entities:
Contractors rely on Jonas daily, but turning portal-based workflows into API-driven automation is non-trivial:
Supergood reverse-engineers authenticated browser flows and network interactions to deliver a resilient API endpoint layer for your Jonas tenant.
Book a 30-minute session to confirm your modules, licensing, and authentication model.
We deliver a hardened Jonas adapter tailored to your workflows and entitlements.
Go live with continuous monitoring and automatic adjustments as Jonas evolves.
Authentication
/sessionsEstablish a session using credentials. Supergood manages MFA (SMS, email, TOTP) and SSO/OAuth when enabled. Returns a short-lived auth token maintained by the platform.
Authentication
/sessions/refreshRefresh an existing token to keep sessions uninterrupted.
Customers
/customersList customers with filters and summary details.
Service Work Orders
/service-work-ordersCreate a new service work order with scheduling and assignment details.
Service Work Orders
/service-work-orders/{workOrderId}Update status, scheduled window, or technician assignments.
Timesheets
/technicians/{technicianId}/timesheetsCreate a timesheet entry against a work order and cost code.
Invoices
/service-work-orders/{workOrderId}/invoicesCreate a service invoice from approved labor and materials.
- Mirror customers, site locations, and contacts into your internal systems - Keep addresses, service agreements, and equipment metadata current for routing and planning - Enrich CRM records with Jonas account identifiers for unified reporting
- Create work orders from your product (web, mobile, IoT alerts) with priorities and SLAs - Update statuses, scheduled windows, and technician assignments programmatically - Attach photos/documents and record labor/materials from the field
- Push assignment changes from your scheduling or optimization engine - Track ball-in-court (dispatcher vs technician) and escalate when SLAs are at risk - Maintain real-time calendars and availability across crews
- Collect technician timesheets with regular/OT hours against work orders and cost codes - Validate pay rules and export summaries to payroll/HR systems - Drive productivity analytics and job cost accuracy
- Issue/return parts against work orders and jobs - Keep equipment history, warranties, and service tasks up to date - Alert stakeholders when inventory thresholds are met
- Generate service invoices from approved labor/material entries - Sync financials to your ERP (e.g., NetSuite, QuickBooks) for AR and reporting - Track WIP and costs for accurate margin analysis
Authentication
Username/password with MFA (SMS, email, TOTP) and SSO/OAuth where enabled; supports service accounts or customer-managed credentials
Response format
JSON with consistent resource schemas and pagination across modules
Rate limits
Tuned for enterprise throughput while honoring customer entitlements and usage controls
Session management
Automatic reauth and cookie/session rotation with health checks
Data freshness
Near real-time retrieval of customers, work orders, timesheets, and financial objects
Security
Encrypted transport, scoped tokens, and audit logging; respects Jonas role-based permissions
Webhooks
Optional asynchronous delivery for long-running workflows (e.g., invoice approvals, work order escalations)
Latency
Sub-second responses for list/detail queries under normal load
Throughput
Designed for high-volume work order sync and timesheet processing
Reliability
Retry logic, backoff, and idempotency keys minimize duplicate actions
Adaptation
Continuous monitoring for UI/API changes with rapid adapter updates
Supergood supports workflows across commonly used modules such as Service Management (Work Orders, Dispatch, Service Contracts), Job Cost & Financials (Budgets, Cost Codes, Invoices), Inventory & Equipment, and Payroll/Timesheets, subject to your licensing and entitlements. We scope coverage during integration assessment.
We support username/password + MFA (SMS, email, TOTP) and can operate behind SSO/OAuth when enabled. Sessions are refreshed automatically with secure challenge handling.
Yes. We can normalize service invoices and job cost data to match your ERP schema (e.g., NetSuite, QuickBooks) and deliver updates via webhooks or polling while complying with rate and permission constraints.
Yes. We support downloading artifacts and uploading attachments via signed uploads, with checksum validation and time-limited URLs.
We can operate with customer-managed credentials and network access. Our adapter is designed to handle session persistence and connectivity for on-prem or hosted environments, aligned with your security policies.