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square /retrofit

A type-safe HTTP client for Android and the JVM

36.0K Stars 6.6K Forks Last release: about 6 years ago (parent-1.6.0) Apache License 2.0 1.9K Commits 54 Releases

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A type-safe HTTP client for Android and Java.

For more information please see the website.


Download the latest JAR or grab from Maven central at the coordinates



Snapshots of the development version are available in [Sonatype's



Retrofit requires at minimum Java 8+ or Android API 21+.

R8 / ProGuard

If you are using R8 the shrinking and obfuscation rules are included automatically.

ProGuard users must manually add the options You might also need rules for OkHttp and Okio which are dependencies of this library.


Copyright 2013 Square, Inc. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

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