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openapi: 3.2.0
info:
version: 1.0.0
title: Kantata OX API Documentation Vendors API
description: Kantata OX's API provides access to the majority of Kantata OX's data model.
termsOfService: https://www.kantata.com/terms-of-use
contact:
name: Kantata OX Support
url: https://knowledge.kantata.com/hc/en-us
license:
name: COPYRIGHT © 2026 Kantata, Inc.
url: https://www.kantata.com/terms-of-use
x-logo:
url: https://theme.zdassets.com/theme_assets/56104/04e93064d309f75d054b8cee885d1ea51e9be8f7.png
backgroundColor: '#FFFFFF'
altText: Kantata OX API Documentation
href: https://developer.kantata.com
servers:
- url: https://api.mavenlink.com/api/v1
tags:
- name: Vendors
description: A Vendor is an entity to which an expense can be paid.
paths:
/vendors:
get:
summary: Fetching a list of Vendors
description: 'This endpoint returns structured Vendor objects.
As with all Kantata OX API endpoints, the returned data will be referenced in sorted order in the `results` array
and will be indexed by ID in the `vendors` top-level JSON key.
Please see our Response Format section for more information.'
operationId: Get Vendors
tags:
- Vendors
parameters:
- in: query
name: archived
description: If *True*, returns all archived vendors and false returns all active vendors.
schema:
type: boolean
- in: query
name: external_reference_external_message
description: Filter the objects based on the external message of their associated external references. This is an exact match.
schema:
type: string
- in: query
name: external_reference_external_status
description: Filter by the status of the external object in the external system.
schema:
type: string
- in: query
name: external_reference_service_model
description: Filter by the type of the external object this external reference belongs to.
schema:
type: string
- in: query
name: external_reference_service_model_ref
description: Filter by the id of the external object this external reference belongs to.
schema:
type: integer
format: int32
- in: query
name: external_reference_service_model_refs
description: Filter for objects that correlate to the specified external object IDs. Provide a comma-separated list of up to 200 external IDs.
schema:
type: string
- in: query
name: external_reference_service_name
description: Filter by the name of the provider for integration.
schema:
type: string
- in: query
name: external_reference_status
description: Filter by the status of the integration, this can be successful or fail.
schema:
type: string
- in: query
name: has_external_references
description: Filter by whether or not the object has external references.
schema:
type: boolean
- in: query
name: include
description: 'Any of the below associations can be included in your request by providing the `include` param, e.g. `include=association1,association2`.
- `external_references` (ExternalReference) - Includes references to external integrations for this object.'
schema:
type: string
- in: query
name: only
description: 'Allows you to request one or more resources directly by ID. Multiple IDs can be supplied
in a comma separated list, like `GET /api/v1/workspaces.json?only=5,6,7`.'
schema:
type: string
- in: query
name: order
description: 'Supply `order` with the name of a valid sort field for the endpoint and a direction.
Valid values: `alphabetical:asc` and `alphabetical:desc`.'
schema:
type: string
default: alphabetical:asc
- in: query
name: page
schema:
type: integer
format: int32
default: 1
- in: query
name: per_page
schema:
type: integer
format: int32
default: 20
maximum: 200
- in: query
name: without_external_reference_service_name
description: Exclude by the existence of an external reference with the specified service name.
schema:
type: string
responses:
'200':
description: A list of Vendors have been retrieved.
content:
application/json:
schema:
type: object
properties:
count:
type: integer
format: int32
meta:
type: object
properties:
count:
type: integer
format: int32
page_count:
type: integer
format: int32
page_number:
type: integer
format: int32
page_size:
type: integer
format: int32
results:
type: array
items:
type: object
properties:
key:
type: string
id:
type: string
vendors:
type: object
additionalProperties:
$ref: '#/components/schemas/Vendor'
external_references:
type: object
additionalProperties:
$ref: '#/components/schemas/ExternalReference'
'400':
description: Bad Request
content:
application/json:
schema:
$ref: '#/components/schemas/Errors'
'401':
description: Unauthorized request
content:
application/json:
schema:
$ref: '#/components/schemas/Errors'
'403':
description: Forbidden request
content:
application/json:
schema:
$ref: '#/components/schemas/Errors'
'404':
description: Page Not Found
content:
application/json:
schema:
$ref: '#/components/schemas/Errors'
'422':
description: Unprocessable Entity
content:
application/json:
schema:
$ref: '#/components/schemas/Errors'
'503':
description: Service is unavailable
content:
application/json:
schema:
$ref: '#/components/schemas/Errors'
post:
summary: Creating a new Vendor
description: 'This endpoint returns structured Vendor objects.
As with all Kantata OX API endpoints, the returned data will be referenced in sorted order in the `results` array
and will be indexed by ID in the `vendors` top-level JSON key.
Please see our Response Format section for more information.'
operationId: Create Vendor
tags:
- Vendors
parameters:
- in: query
name: include
description: 'Any of the below associations can be included in your request by providing the `include` param, e.g. `include=association1,association2`.
- `external_references` (ExternalReference) - Includes references to external integrations for this object.'
schema:
type: string
responses:
'200':
description: Vendor has been created.
content:
application/json:
schema:
type: object
properties:
count:
type: integer
format: int32
meta:
type: object
properties:
count:
type: integer
format: int32
page_count:
type: integer
format: int32
page_number:
type: integer
format: int32
page_size:
type: integer
format: int32
results:
type: array
items:
type: object
properties:
key:
type: string
id:
type: string
vendors:
type: object
additionalProperties:
$ref: '#/components/schemas/Vendor'
external_references:
type: object
additionalProperties:
$ref: '#/components/schemas/ExternalReference'
'400':
description: Bad Request
content:
application/json:
schema:
$ref: '#/components/schemas/Errors'
'401':
description: Unauthorized request
content:
application/json:
schema:
$ref: '#/components/schemas/Errors'
'403':
description: Forbidden request
content:
application/json:
schema:
$ref: '#/components/schemas/Errors'
'404':
description: Page Not Found
content:
application/json:
schema:
$ref: '#/components/schemas/Errors'
'422':
description: Unprocessable Entity
content:
application/json:
schema:
$ref: '#/components/schemas/Errors'
'503':
description: Service is unavailable
content:
application/json:
schema:
$ref: '#/components/schemas/Errors'
requestBody:
content:
application/json:
schema:
type: object
properties:
vendor:
type: object
properties:
name:
type: string
description: The name of the vendor.
external_reference:
type: object
description: 'Typically populated programmatically by a third party system via an integration, this is an optional
object that holds data from an external system. It connects objects in an external system with objects in
Kantata OX (for example, to connect a Jira issue to a Kantata OX Project).'
properties:
service_name:
type: string
description: The provider name of the integration. If you are adding multiple external references to the same object, the `service_name` must be unique.
service_model:
type: string
description: The object type of the external object this external reference belongs to.
service_model_ref:
type: string
description: The object ID of the external object this external reference belongs to.
external_message:
type: string
description: The message on the external object.
external_link:
type: string
description: The link to the external object.
external_status:
type: string
description: The status of the external object in the external system.
locked:
type: boolean
description: Whether the subject is locked.
required:
- service_name
- service_model
- service_model_ref
required:
- name
required: true
/vendors/{id}:
put:
summary: Updating an existing Vendor
description: 'This endpoint returns structured Vendor objects.
As with all Kantata OX API endpoints, the returned data will be referenced in sorted order in the `results` array
and will be indexed by ID in the `vendors` top-level JSON key.
Please see our Response Format section for more information.'
operationId: Update Vendor
tags:
- Vendors
parameters:
- in: path
name: id
required: true
description: The ID of the Model.
schema:
type: integer
- in: query
name: include
description: 'Any of the below associations can be included in your request by providing the `include` param, e.g. `include=association1,association2`.
- `external_references` (ExternalReference) - Includes references to external integrations for this object.'
schema:
type: string
responses:
'200':
description: Vendor has been updated.
content:
application/json:
schema:
type: object
properties:
count:
type: integer
format: int32
meta:
type: object
properties:
count:
type: integer
format: int32
page_count:
type: integer
format: int32
page_number:
type: integer
format: int32
page_size:
type: integer
format: int32
results:
type: array
items:
type: object
properties:
key:
type: string
id:
type: string
vendors:
type: object
additionalProperties:
$ref: '#/components/schemas/Vendor'
external_references:
type: object
additionalProperties:
$ref: '#/components/schemas/ExternalReference'
'400':
description: Bad Request
content:
application/json:
schema:
$ref: '#/components/schemas/Errors'
'401':
description: Unauthorized request
content:
application/json:
schema:
$ref: '#/components/schemas/Errors'
'403':
description: Forbidden request
content:
application/json:
schema:
$ref: '#/components/schemas/Errors'
'404':
description: Page Not Found
content:
application/json:
schema:
$ref: '#/components/schemas/Errors'
'422':
description: Unprocessable Entity
content:
application/json:
schema:
$ref: '#/components/schemas/Errors'
'503':
description: Service is unavailable
content:
application/json:
schema:
$ref: '#/components/schemas/Errors'
requestBody:
content:
application/json:
schema:
type: object
properties:
vendor:
type: object
properties:
name:
type: string
description: The name of the vendor.
archived:
type: boolean
description: When set to true, archives the vendor.
external_reference:
type: object
description: 'Typically populated programmatically by a third party system via an integration, this is an optional
object that holds data from an external system. It connects objects in an external system with objects in
Kantata OX (for example, to connect a Jira issue to a Kantata OX Project).'
properties:
service_name:
type: string
description: The provider name of the integration. If you are adding multiple external references to the same object, the `service_name` must be unique.
service_model:
type: string
description: The object type of the external object this external reference belongs to.
service_model_ref:
type: string
description: The object ID of the external object this external reference belongs to.
external_message:
type: string
description: The message on the external object.
external_link:
type: string
description: The link to the external object.
external_status:
type: string
description: The status of the external object in the external system.
locked:
type: boolean
description: Whether the subject is locked.
required:
- service_name
- service_model
- service_model_ref
required: true
delete:
summary: Deleting an existing Vendor
description: 'The response will contain no content and an HTTP 204 status code if the request was
successful, or a standard Kantata OX error message explaining why the object could not be deleted.'
operationId: Delete Vendor
tags:
- Vendors
parameters:
- in: path
name: id
required: true
description: The ID of the Model.
schema:
type: integer
responses:
'204':
description: Vendor has been deleted.
'400':
description: Bad Request
content:
application/json:
schema:
$ref: '#/components/schemas/Errors'
'401':
description: Unauthorized request
content:
application/json:
schema:
$ref: '#/components/schemas/Errors'
'403':
description: Forbidden request
content:
application/json:
schema:
$ref: '#/components/schemas/Errors'
'404':
description: Page Not Found
content:
application/json:
schema:
$ref: '#/components/schemas/Errors'
'422':
description: Unprocessable Entity
content:
application/json:
schema:
$ref: '#/components/schemas/Errors'
'503':
description: Service is unavailable
content:
application/json:
schema:
$ref: '#/components/schemas/Errors'
components:
schemas:
ExternalReference:
title: External Reference
description: 'External References allows users see which objects (one of `Assignment`, `BillingMilestone`, `CustomField`, `CustomFieldChoice`, `CustomFieldSet`, `CustomFieldValue`, `Estimate`, `EstimateScenario`, `EstimateScenarioResource`, `Expense`, `ExpenseBudget`, `Invoice`, `Participation`, `Post`, `RateCard`, `Role`, `Skill`, `StatusReport`, `Story`, `StoryAllocationDay`, `Submission`, `SurveyAnswer`, `SurveyQuestion`, `SurveyResponse`, `SurveyTemplate`, `TimeEntry`, `TimeOffEntry`, `User`, `Vendor`, `Workspace`, `WorkspaceAllocation`, `WorkspaceGroup`, or `WorkspaceResource`
are synced with third party systems. This allows you to view the sync status of items in addition to the integration
specifics for a synced object.
Objects that are synced with a third party system have external integration
attributes that include the corresponding ID of the third party object with
which it is synced, a link that allows you to view the object in the third
party system, the status of the external object in the external system,
the status of the sync, and a link to exceptions.'
type: object
properties:
created_at:
type: string
format: date-time
description: The date and time the reference was created.
external_link:
type: string
description: A URL that links to either the external object or event.
external_message:
type: string
description: An optional message about the external object.
external_status:
type: string
description: The status of the external object in the external system.
last_synced_at:
type: string
format: date-time
locked:
type: boolean
description: 'An optional field, indicating whether the subject should be locked. To prevent changes to the
object in Kantata OX, set this to true. This currently only applies to expense report rejections.'
service_model:
type: string
description: The type of the external object to which this reference belongs.
service_model_ref:
type: string
description: The ID of the external object to which this reference belongs.
service_name:
type: string
description: The provider name of the integration.
status:
type: string
description: The status of the integration. Options are 'pending', 'successful', or 'failed'.
subject_id:
type: integer
format: int32
description: The ID of the Kantata OX object to which this external reference belongs.
subject_ref:
type: object
description: '`subject_ref` will only be included in the response if `subject` is in the list of included associations. See <a href=''#section/Includes''>include</a> section for usage.'
properties:
key:
type: string
id:
type: string
subject_type:
type: string
description: 'The type of Kantata OX object to which this external reference belongs.
One of `Assignment`, `BillingMilestone`, `CustomField`, `CustomFieldChoice`, `CustomFieldSet`, `CustomFieldValue`, `Estimate`, `EstimateScenario`, `EstimateScenarioResource`, `Expense`, `ExpenseBudget`, `Invoice`, `Participation`, `Post`, `RateCard`, `Role`, `Skill`, `StatusReport`, `Story`, `StoryAllocationDay`, `Submission`, `SurveyAnswer`, `SurveyQuestion`, `SurveyResponse`, `SurveyTemplate`, `TimeEntry`, `TimeOffEntry`, `User`, `Vendor`, `Workspace`, `WorkspaceAllocation`, `WorkspaceGroup`, or `WorkspaceResource`.'
updated_at:
type: string
format: date-time
description: The date and time the reference was last updated.
Errors:
type: object
properties:
errors:
type: array
items:
$ref: '#/components/schemas/Error'
Vendor:
title: Vendor
description: A Vendor is an entity to which an expense can be paid.
type: object
properties:
archived:
type: boolean
description: Whether the vendor is archived.
external_reference_ids:
type: array
items:
type: string
description: '`external_reference_ids` will only be included in the response if `external_references` is in the list of included associations. See <a href=''#section/Includes''>include</a> section for usage.'
externally_managed:
type: boolean
description: Whether the vendor was created by an external system and then imported.
in_use:
type: boolean
description: Whether the vendor is used on an invoice.
name:
type: string
description: The name of the vendor.
Error:
type: object
properties:
type:
type: string
message:
type: string
securitySchemes:
BearerToken:
type: apiKey
name: Bearer
in: header
OauthSecurity:
type: oauth2
flows:
authorizationCode:
scopes: {}
authorizationUrl: https://app.mavenlink.com/oauth/authorize
tokenUrl: https://app.mavenlink.com/oauth/token
x-tagGroups:
- name: '# Subscribed Events'
tags:
- Event Types
- Events
- name: Account Locations
tags:
- Account Locations
- name: Account Settings & Members
tags:
- Access Group Memberships
- Account Colors
- Account Invitations
- Account Memberships
- Backup Approver Associations
- Billable Utilizations
- Cost Rates
- Custom Branding
- Organization Memberships
- Organizations
- Roles
- Skill Categories
- Skill Memberships
- Skills
- Task Status Sets
- Task Statuses
- User Group Memberships
- Users
- name: Currencies
tags:
- Currencies
- name: Custom Fields
tags:
- Custom Field Choices
- Custom Field Sets
- Custom Field Values
- Custom Fields
- name: Data Exporter
tags:
- Data Export Schema
- Data Exports
- name: Estimates
tags:
- Estimate Scenario Resource Allocations
- Estimate Scenario Resources
- Estimate Scenarios
- Estimates
- name: Expense Budgets
tags:
- Expense Budgets
- name: Expense Tracking
tags:
- Attachments
- Expense Categories
- Expense Report Submissions
- Expenses
- Vendors
- name: External References
tags:
- External References
- name: Financials
tags:
- Billing Milestones
- Revenue Recognition Methods
- name: Foreign Exchange
tags:
- Exchange Tables
- name: Insights & Analytics
tags:
- Insights Access Group Memberships
- Insights Dynamic Dashboards
- Insights Report Exports
- Insights Reports
- name: Invoices
tags:
- Client Invoice Defaults
- External Payments
- Invoices
- Workspace Invoice Preferences
- name: Personal Settings
tags:
- Users
- name: Posts & Replies
tags:
- Attachments
- Posts
- User File Associations
- name: Project Snapshots
tags:
- Project Snapshots
- name: Project Templates
tags:
- Project Template Additional Tabs
- Project Template Assignments
- Project Template Expense Budgets
- Project Templates
- name: Projects
tags:
- Participations
- Project Accounting Records
- Status Reports
- Workspace Allocations
- Workspace Baselines
- Workspace Groups
- Workspace Invoice Preferences
- Workspace Resource Skills
- Workspace Resources
- Workspace Status Changes
- Workspace Task Status Sets
- Workspaces
- name: Rate Cards
tags:
- Activations
- Rate Card Role (Rate for a Role)
- Rate Card Set Version (Effective version by Date)
- Rate Card Sets (Group of Rate Cards)
- Rate Card Table Rows
- Rate Card Versions
- Rate Cards (Multiple Currencies)
- name: Recommendations
tags:
- Recommendations
- name: Resource Requests
tags:
- Resource Requests
- name: Scheduling
tags:
- Holiday Calendar Associations
- Holiday Calendar Memberships
- Holiday Calendars
- Holidays
- Time Off Entries
- Workweek Memberships
- Workweeks
- name: Surveys (Legacy)
tags:
- Survey Answers (Legacy)
- Survey Questions (Legacy)
- Survey Templates (Legacy)
- Surveys Responses (Legacy)
- name: Tasks
tags:
- Assignments
- Daily Scheduled Hours (Story Allocation Days)
- Followers
- Stories
- Story Dependencies
- Story State Changes
- Story Tasks
- name: Time Tracking
tags:
- Line Item Locks
- Time Entries
- Timesheet Approvals
- Timesheet Cancellations
- Timesheet Rejections
- Timesheet Submissions