# Datto Autotask PSA REST API

**Canonical:** https://apis.io/apis/kaseya/autotask-psa/  
**Provider:** Kaseya — https://apis.io/providers/kaseya/  
**Base URL:** https://webservices2.autotask.net/ATServicesRest  
**Documentation:** https://ww2.autotask.net/help/developerhelp/Content/APIs/REST/REST_API_Home.htm

Datto Autotask PSA REST API is one of 7 APIs that [Kaseya](https://apis.io/providers/kaseya/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Professional Services Automation, Ticketing, Service Desk, CRM, and Billing. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, authentication docs, and rate-limit docs.

The Datto|Autotask PSA REST API is Kaseya's largest published contract — a Swagger 2.0 document with 2,077 paths and 3,009 operations covering companies, contacts, tickets, projects, tasks, contracts, opportunities, quotes, invoices, time entries, configuration items, inventory, resources, checklists, webhooks and the full Autotask entity model (806 definitions). Requests are authenticated with ApiIntegrationCode, UserName and Secret headers and are served from zone-specific webservicesN.autotask.net hosts.

## Machine-readable artifacts (6)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/kaseya/refs/heads/main/openapi/kaseya-autotask-psa-openapi-original.json
- **Documentation** — https://ww2.autotask.net/help/developerhelp/Content/APIs/REST/REST_API_Home.htm
- **APIReference** — https://webservices2.autotask.net/atservicesrest/swagger/ui/index
- **Authentication** — https://ww2.autotask.net/help/developerhelp/Content/APIs/REST/General_Topics/REST_Security_Auth.htm
- **RateLimits** — https://www.autotask.net/help/developerhelp/Content/APIs/REST/General_Topics/REST_Thresholds_Limits.htm
- **Overlay** — https://raw.githubusercontent.com/api-evangelist/kaseya/refs/heads/main/overlays/kaseya-autotask-psa-overlay.yaml

## Other Kaseya APIs (6)

- [Kaseya BMS API 2.0](https://apis.io/apis/kaseya/bms/)
- [Datto RMM API v2](https://apis.io/apis/kaseya/datto-rmm/)
- [IT Glue API](https://apis.io/apis/kaseya/it-glue/)
- [Kaseya VSA 9 REST API](https://apis.io/apis/kaseya/vsa9/)
- [Kaseya VSA 10 API](https://apis.io/apis/kaseya/vsa10/)
- [myITprocess API](https://apis.io/apis/kaseya/myitprocess/)

## Tags

Professional Services Automation, Ticketing, Service Desk, CRM, Billing

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