BigChange API
A documented REST API, BigChange DX, lives at developers.bigchange.com with a free plan and permission-scoped API keys. Auth is long-lived keys only, no OAuth; the full reference and webhook catalog sit behind portal login, and legacy SOAP services linger on a separate domain.
Frequently asked questions
BigChange scores D on the API Report Card. A documented REST API, BigChange DX, lives at developers.bigchange.com with a free plan and permission-scoped API keys. Auth is long-lived keys only, no OAuth; the full reference and webhook catalog sit behind portal login, and legacy SOAP services linger on a separate domain.
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.
BigChange is a UK-headquartered, AI-augmented field service and job management SaaS for businesses that run mobile workforces.
Field Service Management, specifically SMB and lower-mid-market mobile-workforce trades and service businesses. Field engineers use the JobWatch mobile app (iOS/Android, also on rugged terminals) to view their daily route, accept dispatched jobs, complete digital worksheets and safety forms, capture photos/signatures, scan parts and assets, log time, and create invoices on site.
Medium-high within UK/EU field service management. BigChange publicly cites 2,200+ customers and 250,000+ users, with recent revenue growth reported at 2.5x under Great Hill ownership.
BigChange holds the operational and financial system of record for the mobile-workforce businesses that run on it: full customer/contact CRM, equipment and asset history per service location, quotes and signed contracts, job and project records with photos/signatures/worksheets, dispatch schedules and live GPS/telematics traces (driving behaviour, mileage, geofence events), subcontractor jobs and POs, parts and stock movements, maintenance/service agreement obligations, invoices and payments (with Xero/Sage/QuickBooks-synced ledger entries), and timesheets/HR data for field engineers.
Mid-life and actively modernising. The core JobWatch platform launched in 2013 and has been in continuous development for over a decade.
API authentication is long-lived API keys only, no OAuth flow documented, complicating third-party app distribution and per-user permissioning. Full API reference and event/webhook catalogue gated behind developer-portal access rather than fully public docs, slowing pre-sales integration scoping. Full sourced list under Sources below.
Common alternatives include Simpro, Joblogic, Commusoft, ServiceTitan, Jobber, Housecall Pro. 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 BigChange API and MCP server so AI agents and internal tools can read and write BigChange data. See the BigChange integration docs at supergood.ai/docs/bigchange-api.