Contracts (also known as retainers) are ideal for managing recurring client work, maintenance quotas or periodic invoicing - such as licence fees.

A retainer is created against a company/client record, and work is tracked against the retainer through periods. You can configure your retainer to automatically create periods at certain intervals, and invoice up-front for a fixed amount or at the end of the period for the work done.

The retainers modules integrates seamlessly with the issues and projects modules so that you can even allocate work from those into a retainer period.

TYPE	RESOURCE	DESCRIPTION
GET	/contracts/:id/extensions/values	Returns a list of extension values
GET	/contracts/	Returns a list of contracts
GET	/contracts/:id	Returns a specific contract object
GET	/contracts/count	Returns the total count of contracts
GET	/contracts/:id/periods	Returns an array of periods for a given contract object
GET	/contracts/periods/:period_id	Returns a specific contract period object.
PUT	/contracts/:id/extensions/values/:extension_value_id	Update a contract's extension value
GET	/contracts/:id/progressions	Returns an array of available progressions for the contract.
[PUT\|POST]	/contracts/:id/progressions/:progression_id/auto	Runs a status update for the given progression on the given contract.
GET	/contracts/extensions/fields	Returns a list of extension fields.
POST	/contracts/:contract_id/extensions/fields/:extension_field_id	Create an extension value for a contract.
GET	/contracts/:contract_id/collections	Returns a list of resource collections for the given contract
POST	/contracts/:contract_id/collections/:collection_id/resources	Uploads resource (attachment) to the given collection.