v1 available
v1 available. The first public version of the Appficient API: clients, suppliers, products, invoices, quotes, subscriptions, expenses, projects, tasks, planning, tickets, deals, files, emails and webhooks.
Changelog
All API changes with dates. Breaking changes are announced in advance.
Our policy
- Within v1 we only add: new endpoints, new optional fields, new event types. Existing fields do not disappear or change meaning.
- Your integration must ignore unknown response fields — they can appear any time.
- Breaking changes only land in a new major version and are announced here well in advance.
More resources and actions
API expansion with notes, tasks, expenses, files and planning, plus extra actions on invoices, quotes, deals and tickets.
Stable GUIDs in responses
Public /v1 responses use GUIDs (guid / *_guid) to identify objects. Relations such as client_guid stay stable for storage in your own system.