Avaza: The all in one work management solution for teams

Avaza has the following native integrations available:
Slack - Help users stay in touch with your team instantly. Can also stay on discussion without leaving your channel.
DropBox - This integration lets user access their files even on an offline status.
Google Workspace - Users will have single sign-on via Google Apps Universal Navigations including google contacts import.
Mailchimp -
Asana- Help users create new task and project from Asana task to Avaza.
Jira- This integration to automatically create new issue in JIRA each time new task is created in Avaza.
Github - Let user create new task in Avaza and create new companies in Avaza from added GitHub organization.
Stripe - Let user create new people and new orders from Stripe customers.
Quickbooks Online - With this integration you can keep your accounting in check and export invoices. You can also register payments and sync them back to Avaza.
Zapier - Let user connect to more apps
Google Calendar - User can stay updated by letting this integration sync all their Avaza tasks to Google Calendar.

Below we have our info of API options for Avaza

API Auth Methods:
OAuth2|API Key|Access Token

API WSDL Support:HTTP|SOAP|JSON
API Objects Accessible:The API is well documented. It covers a range of methods that Avaza support.

The API supports the following:

AccountShow/HideList OperationsExpand Operations
GET /api/Account
Account Details

CompanyShow/HideList OperationsExpand Operations
GET /api/Company/Lookup
Gets minimal list of Companies.

GET /api/Company
Gets list of Companies

POST /api/Company
Create a Company

PUT /api/Company
Update a Company record.

GET /api/Company/{id}
Gets Company by Company ID

ContactShow/HideList OperationsExpand Operations
GET /api/Contact
Gets list of Contacts

POST /api/Contact
Create a Contact

GET /api/Contact/{id}
Gets Contact by Contact ID

CreditNoteShow/HideList OperationsExpand Operations
GET /api/CreditNote
Gets list of CreditNotes

GET /api/CreditNote/{id}
Gets Credit Note by CreditNoteID

CurrencyShow/HideList OperationsExpand Operations
GET /api/Currency
Gets list of Currencies

EstimateShow/HideList OperationsExpand Operations
GET /api/Estimate
Gets list of Estimates

POST /api/Estimate
Create a new draft Estimate

GET /api/Estimate/{id}
Gets Estimate by Estimate ID

ExpenseShow/HideList OperationsExpand Operations
POST /api/Expense/Attachment
POST /api/ExpenseApproval/Submit
Submit Expenses for Approval.

DELETE /api/Expense
Delete a Timesheet Entry

GET /api/Expense
Gets list of Expenses

POST /api/Expense
Create an Expense

PUT /api/Expense
Update an Expense

GET /api/Expense/{id}
Gets an Expense Entry by Expense ID

ExpenseCategoryShow/HideList OperationsExpand Operations
GET /api/ExpenseCategory
Gets list of Expense Categories

ExpenseGroupShow/HideList OperationsExpand Operations
GET /api/ExpenseGroup/Lookup
Gets minimal list of Expense Groups.

ExpenseMerchantShow/HideList OperationsExpand Operations
GET /api/ExpenseMerchant/Lookup
Gets minimal list of Expense Merchants.

ExpensePaymentMethodShow/HideList OperationsExpand Operations
GET /api/ExpensePaymentMethod/Lookup
Gets minimal list of Expense Payment Methods.

ExpenseSummaryShow/HideList OperationsExpand Operations
GET /api/ExpenseSummary
Gets Basic Summary of Expense Statistics

FixedAmountShow/HideList OperationsExpand Operations
GET /api/FixedAmount
Gets list of Fixed Amounts

InventoryShow/HideList OperationsExpand Operations
GET /api/Inventory
Gets list of Inventory

GET /api/Inventory/{id}
Gets InventoryItem by InventoryItem ID

InvoiceShow/HideList OperationsExpand Operations
GET /api/Invoice
Gets list of Invoices

POST /api/Invoice
Create a new draft invoice

GET /api/Invoice/{id}
Gets Invoice by Invoice ID

PaymentShow/HideList OperationsExpand Operations
GET /api/Payment
Gets list of Payments

POST /api/Payment
Create new Payment and optionally assign payment allocations to Invoices

GET /api/Payment/{id}
Gets Payment by Payment Transaction ID

ProjectShow/HideList OperationsExpand Operations
GET /api/Project/Lookup
Gets minimal list of active Projects for the current user

GET /api/Project
Gets list of Projects

POST /api/Project
Create a Project

PUT /api/Project
Update an Project

GET /api/Project/{id}
Gets Project by Project ID

ProjectMemberShow/HideList OperationsExpand Operations
POST /api/ProjectMember
Assign a user as a Member of a Project

ProjectTimesheetCategoryShow/HideList OperationsExpand Operations
GET /api/ProjectTimesheetCategory
Gets list of Project Timesheet Categories

POST /api/ProjectTimesheetCategory
Assign a TimeSheetCategory to a Project.

ScheduleAssignmentShow/HideList OperationsExpand Operations
GET /api/ScheduleAssignment
Gets list of Schedule Assignments.

ScheduleSeriesShow/HideList OperationsExpand Operations
POST /ScheduleSeries/AddBooking
Create new Schedule Booking

POST /ScheduleSeries/AddLeave
Create new Leave Booking

PUT /ScheduleSeries/EditLeave
Edit Leave Booking

PUT /ScheduleSeries/EditBooking
Edit Booking

GET /api/ScheduleSeries
Gets list of Schedule Series

SectionShow/HideList OperationsExpand Operations
DELETE /api/Section
Delete a Section

GET /api/Section
Gets list of Sections

POST /api/Section
Create a Section

TaskShow/HideList OperationsExpand Operations
GET /api/Task/Lookup
Gets minimal list of Tasks for the current user

DELETE /api/Task
Delete a Task

GET /api/Task
Gets list of Tasks

POST /api/Task
Create a Task

PUT /api/Task
Update a Task.

GET /api/Task/{id}
Gets Task by Task ID

TaskStatusShow/HideList OperationsExpand Operations
GET /api/TaskStatus
Gets list of Task Statuses

TaskTypeShow/HideList OperationsExpand Operations
GET /api/TaskType
Gets list of Task Types

TaxShow/HideList OperationsExpand Operations
GET /api/Tax
Get List of Taxes configured in the Avaza account.

TimesheetShow/HideList OperationsExpand Operations
GET /api/Timesheet
Gets list of Timsheets

POST /api/Timesheet
Create a new Timesheet Entry

PUT /api/Timesheet
Update a Timesheet

DELETE /api/Timesheet/{id}
Delete a Timesheet Entry

GET /api/Timesheet/{id}
Gets a Timesheet Entry by Timesheet ID

TimesheetSubmissionShow/HideList OperationsExpand Operations
POST /api/TimesheetSubmission
Submit Timesheets for Approval.

TimesheetSummaryShow/HideList OperationsExpand Operations
GET /api/TimesheetSummary
Gets Basic Summary of Timesheet Statistics

TimesheetTimerShow/HideList OperationsExpand Operations
GET /api/TimesheetTimer
Gets the Running Timer if there is one for a user.

DELETE /api/TimesheetTimer/{id}
Stop the timer running on an existing Timesheet Entry

POST /api/TimesheetTimer/{id}
Starts a Timer running on an existing Timesheet Entry

UserProfileShow/HideList OperationsExpand Operations
GET /api/UserProfile
Get Collection of Users who have roles in the current Avaza account

There are also these supported webhooks:

company_created
company_deleted
company_updated
contact_created
contact_deleted
contact_updated
invoice_created
invoice_sent
project_created
project_deleted
project_updated
task_created
timesheet_created
timesheet_deleted
timesheet_updated
API Cost:Free/Part of Existing Subscription
API Version:1
You can also have a good read of theAPI Documentation Here