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REST API

1 min readLast updated Aug 1, 2026

The Efimis REST API provides transactional read and write access to all platform resources.

Base URL: https://api.{au|uk}.efimis.com/{tenant}/v1

The full interactive REST API reference is available at:

/api/rest-reference

Resource Description
/entities People and organisations
/clients Entities in the client role
/matters Legal matters
/tasktypes Task types
/workitems Billable time entries and disbursements
/invoices Tax invoices
/applicablerates Rate lookups
/webhooks Event subscriptions