Within Teamwork, you can use the Zapier integration to perform actions on your site.

Zapier combines triggers and actions into Zaps to complete an action in one app when a trigger occurs in another app. 

The following Teamwork actions, triggers, and searches are supported by Zapier:

 Supported Triggers
Supported Actions
 Supported Searches 
New Project
Create Project
Find Project
Project Updated or Deleted
Add People to Project
Find Task List
New Task List
Create Task List
Find Task
New Task 
Create Task
Find Task Comment
Task Updated or Deleted 
Update TaskFind Milestone
New Time Entry
Create Task Comment
Find Milestone Comment
New Milestone
Mark Task CompleteFind Notebook
New Notebook
Create Time Entry on TaskFind Notebook Comment 
New Message
Create Time Entry on ProjectFind Message
New Message Reply
Create MilestoneFind Link
New Comment
Create Milestone CommentFind Link Comment
New Link
Create NotebookFind File
New File
Create Notebook CommentFind File Comment
New Risk
Create Notebook CategoryFind Column
New Invoice
Create MessageFind Calendar Event
New Expense
Create Message ReplyFind Company
New Column
Create Message Category
Find Person
New Card
Create Link
New Status
Create Link Comment
New Calendar Event
Create Link Category 
Calendar Event Reminder
Upload File to Project

New Company
Create File Comment

New Person
Create File Category

Create Invoice

Create Expense

Create Column
Move Board Card
Create Status
Create Calendar Event
Create Calendar Event Type
Create Company
Create Person
For more information, see: Creating Project Items Using Zapier