# Australia Post Postage Assessment Calculator API

**Canonical:** https://apis.io/apis/australia-post/postage-assessment-calculator/  
**Provider:** Australia Post — https://apis.io/providers/australia-post/  
**Base URL:** https://digitalapi.auspost.com.au  
**Documentation:** https://developers.auspost.com.au/apis/pac/

Australia Post Postage Assessment Calculator API is one of 4 APIs that [Australia Post](https://apis.io/providers/australia-post/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Postage, Pricing, E-Commerce, and Rating. The published artifact set on APIs.io includes API documentation, an API reference, and a getting-started guide.

Lets businesses and developers embed a postage calculator into websites or applications to retrieve standard retail postage rates for domestic and international parcels and letters. Accepts weight, dimensions, origin, and destination to return eligible services with pricing. Uses HTTP GET requests returning JSON or XML; authentication via AUTH-KEY header. Free API key available via self-serve registration. Note — this API returns retail rates only; contract rates require the Shipping and Tracking API.

## Machine-readable artifacts (4)

- **Documentation** — https://developers.auspost.com.au/apis/pac/
- **APIReference** — https://developers.auspost.com.au/apis/pac/reference
- **GettingStarted** — https://developers.auspost.com.au/apis/pacpcs-registration
- **APIExplorer** — https://developers.auspost.com.au/apis/pac/explorer

## Other Australia Post APIs (3)

- [Australia Post Shipping and Tracking API](https://apis.io/apis/australia-post/shipping-and-tracking/)
- [Australia Post Delivery Choices API](https://apis.io/apis/australia-post/delivery-choices/)
- [Australia Post Endpoints API](https://apis.io/apis/australia-post/australia-post-endpoints-api/)

## Tags

Postage, Pricing, E-Commerce, Rating

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