---
title: Federation API Reference
---

Federation API server supports the following group versions:

* federation/v1beta1: [operations](/docs/federation/api-reference/federation/v1beta1/operations.html), [model definitions](/docs/federation/api-reference/federation/v1beta1/definitions.html)
* v1: [operations](/docs/federation/api-reference/v1/operations.html), [model definitions](/docs/federation/api-reference/v1/definitions.html)
* extensions/v1beta1: [operations](/docs/federation/api-reference/extensions/v1beta1/operations.html), [model definitions](/docs/federation/api-reference/extensions/v1beta1/definitions.html)


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