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Mavenlink Expenses API

Expenses are defined as costs incurred as part of a project, but not related to time. Once created, expenses canbe included in generated invoices.

Mavenlink Expenses API is one of 103 APIs that Mavenlink publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Expenses. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, authentication docs, and rate-limit docs.

This API exposes 6 operations across 2 paths, and defines 13 schemas. It is described by OpenAPI 3.2.0, at version 1.0.0.

Requests are made against a single base URL, https://api.mavenlink.com/api/v1.

6 operations 2 paths 13 schemas 2 DELETE2 GET1 POST1 PUT

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.0.0
Base URL
https://api.mavenlink.com/api/v1/
Authentication
API Key, OAuth 2.0
Terms of Service
Resource Areas
1

Authentication & Security 2

Mavenlink Expenses API declares 2 security schemes for authenticating requests. An API key is passed in the header as Bearer (BearerToken). It supports OAuth 2.0 (OauthSecurity) using the authorizationCode flow.

Paths & Operations 6

Across 2 paths, the API surfaces 6 operations — 2 DELETE, 2 GET, 1 POST, 1 PUT. Each is listed below with its method, path, parameters, and response codes.

Expenses 6

Expenses are defined as costs incurred as part of a project, but not related to time. Once created, expenses can be included in generated invoices.

GET
/expenses
Fetching a list of Expenses
Get Expenses 35 params → 200400401403404422503
POST
/expenses
Creating a new Expense
Create Expense 2 params body → 200400401403404422503
DELETE
/expenses
Delete multiple expenses
Delete Expenses 1 param → 200400401403404422503
GET
/expenses/{id}
Fetching a single Expense
Get Expense 3 params → 200400401403404422503
PUT
/expenses/{id}
Updating an existing Expense
Update Expense 3 params body → 200400401403404422503
DELETE
/expenses/{id}
Deleting an existing Expense
Delete Expense 1 param → 204400401403404422503

Schemas 13

The contract defines 13 schemas that model the data the API accepts and returns. The most detailed are Workspace (88 properties), Story (70 properties), Expense (26 properties), ExpenseReportSubmission (22 properties). Each schema is shown below with its type and property counts.

ExternalReference
object
External References allows users see which objects (one of Assignment, BillingMilestone, CustomField, CustomFieldChoice, CustomFieldSet, CustomFieldValue, Esti…
14 properties
Errors
object
1 property
Error
object
2 properties
Role
object
A Role represents the main position or title assigned to members on an account. Roles may be associated with account memberships, account invitations, particip…
5 properties
ExpenseReportSubmission
object
Expense report submissions contain a set of expense line items. These expenses must be approved through an expense report submission before they can be added t…
22 properties
Attachments__ReceiptAttachment
object
Attachments are files that accompany other resources provided by the Kantata OX API. Expenses can have an attachment (tracked as a receipt). Posts can also hav…
10 properties
ExpenseBudget
object
Expense budgets allow you to plan for non-labor expenses.
16 properties
Vendor
object
A Vendor is an entity to which an expense can be paid.
5 properties
Workspace
object
Workspaces (also called projects) represent the space in which Kantata OX users plan, communicate, and collaborate.
88 properties
ExpenseCategory
object
An Expense Category represents the type of expense that is being reported. Expense categories have no attributes and consist of just their name as a string. Th…
2 properties
User
object
Users represent the individuals that are participating in Kantata OX projects. User objects are often returned as nested JSON objects within other returned ite…
20 properties
Expense
object
Expenses are non-time related costs incurred in a project. Once created, expenses can be included in generated invoices.
26 properties
Story
object
Stories (known as [tasks](https://knowledge.kantata.com/hc/en-us/articles/202806550-Tasks-Overview) in the UI) are the tasks, deliverables, issues, and milesto…
70 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

mavenlink-expenses-api-openapi.yml Raw ↑

Other APIs Mavenlink publishes across the network.

Kantata OX MCP Server
Kantata OX Developer Documentation Agent
Mavenlink Access Group Memberships API
Mavenlink Account Colors API
Mavenlink Account Invitations API
Mavenlink Account Locations API
Mavenlink Account Memberships API
Mavenlink Activations API
Mavenlink Assignments API
Mavenlink Attachments API
Mavenlink Backup Approver Associations API
Mavenlink Billable Utilizations API
Where this information came from

This is an independent, third-party profile of Mavenlink Expenses API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

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