# Mavenlink Invoices API

**Canonical:** https://apis.io/apis/mavenlink/mavenlink-invoices-api/  
**Provider:** Mavenlink — https://apis.io/providers/mavenlink/  
**Base URL:** https://api.mavenlink.com/api/v1/  
**Documentation:** https://developer.kantata.com/

Mavenlink Invoices API is one of 103 APIs that [Mavenlink](https://apis.io/providers/mavenlink/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Invoices. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, authentication docs, and rate-limit docs.

Users can create Invoices in a Kantata OX project. An Invoice must have at least one line item (a time entry, expense, fixed fee item, or additional item). By default, the recipient of an invoice is the primary client in the project. Manual formatting options are available to define the format and information that should be displayed on an invoice. Invoices can only be created and viewed by participants with financial permission in a project.

## Machine-readable artifacts (9)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/mavenlink/refs/heads/main/openapi/mavenlink-invoices-api-openapi.yml
- **Documentation** — https://developer.kantata.com/
- **APIReference** — https://developer.kantata.com/kantata/specification
- **Authentication** — https://raw.githubusercontent.com/api-evangelist/mavenlink/refs/heads/main/authentication/mavenlink-authentication.yml
- **OAuthScopes** — https://raw.githubusercontent.com/api-evangelist/mavenlink/refs/heads/main/scopes/mavenlink-scopes.yml
- **Conventions** — https://raw.githubusercontent.com/api-evangelist/mavenlink/refs/heads/main/conventions/mavenlink-conventions.yml
- **DataModel** — https://raw.githubusercontent.com/api-evangelist/mavenlink/refs/heads/main/data-model/mavenlink-data-model.yml
- **ErrorCatalog** — https://raw.githubusercontent.com/api-evangelist/mavenlink/refs/heads/main/errors/mavenlink-problem-types.yml
- **RateLimits** — https://raw.githubusercontent.com/api-evangelist/mavenlink/refs/heads/main/rate-limits/mavenlink-rate-limits.yml

## Other Mavenlink APIs (12)

- [Kantata OX MCP Server](https://apis.io/apis/mavenlink/kantata-ox-mcp-server/)
- [Kantata OX Developer Documentation Agent](https://apis.io/apis/mavenlink/kantata-ox-developer-documentation-agent/)
- [Mavenlink Access Group Memberships API](https://apis.io/apis/mavenlink/mavenlink-access-group-memberships-api/)
- [Mavenlink Account Colors API](https://apis.io/apis/mavenlink/mavenlink-account-colors-api/)
- [Mavenlink Account Invitations API](https://apis.io/apis/mavenlink/mavenlink-account-invitations-api/)
- [Mavenlink Account Locations API](https://apis.io/apis/mavenlink/mavenlink-account-locations-api/)
- [Mavenlink Account Memberships API](https://apis.io/apis/mavenlink/mavenlink-account-memberships-api/)
- [Mavenlink Activations API](https://apis.io/apis/mavenlink/mavenlink-activations-api/)
- [Mavenlink Assignments API](https://apis.io/apis/mavenlink/mavenlink-assignments-api/)
- [Mavenlink Attachments API](https://apis.io/apis/mavenlink/mavenlink-attachments-api/)
- [Mavenlink Backup Approver Associations API](https://apis.io/apis/mavenlink/mavenlink-backup-approver-associations-api/)
- [Mavenlink Billable Utilizations API](https://apis.io/apis/mavenlink/mavenlink-billable-utilizations-api/)

## Tags

Invoices

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/mavenlink/mavenlink-invoices-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/mavenlink/.