# Certinia Professional Services Automation (PSA) API

**Canonical:** https://apis.io/apis/certinia/certinia-psa-api/  
**Provider:** Certinia — https://apis.io/providers/certinia/  
**Documentation:** https://help.certinia.com/TechnicalReference/2024.2/ProfessionalServicesAutomation/Apex/GenericAPI.htm

Certinia Professional Services Automation (PSA) API is one of 6 APIs that [Certinia](https://apis.io/providers/certinia/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Professional Services Automation, PSA, Project, Resource Management, and Timecards. The published artifact set on APIs.io includes API documentation and an API reference.

Domain-oriented Apex service classes for Professional Services Automation - projects, resource requests and assignments, milestones, timecards, expenses, and billing events. Runs against PSA managed-package objects (namespace prefix pse) inside a Salesforce org and supports SOAP development environments; not a generic public REST CRUD layer. Endpoints modeled from the public developer reference.

## Machine-readable artifacts (2)

- **Documentation** — https://help.certinia.com/TechnicalReference/2024.2/ProfessionalServicesAutomation/Apex/GenericAPI.htm
- **APIReference** — https://help.certinia.com/psa-api-apex/16X/GenericAPI.htm

## Other Certinia APIs (5)

- [Certinia Revenue Management API](https://apis.io/apis/certinia/certinia-revenue-management-api/)
- [Certinia Billing Central API](https://apis.io/apis/certinia/certinia-billing-central-api/)
- [Certinia Accounting (ERP) API](https://apis.io/apis/certinia/certinia-accounting-api/)
- [Certinia Supply Chain Management (SCM) API](https://apis.io/apis/certinia/certinia-scm-api/)
- [Certinia Services CPQ API](https://apis.io/apis/certinia/certinia-services-cpq-api/)

## Tags

Professional Services Automation, PSA, Project, Resource Management, Timecards

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