Gravatar - because I shouldn't have to upload a picture of myself in a sombrero more than once...

API

Simple

Gravatar("you@example.com").avatarUrl

To get a secure URL (for embedding on websites served over HTTPS/SSL)

Gravatar("you@example.com").ssl(true).avatarUrl

Setting all the properties

Gravatar(email).ssl(true).default(Monster).maxRatedAs(R).forceDefault(true).size(100).avatarUrl

More info at Gravatar

Adding the Scravatar dependency

Scravatar does not depend on any third party frameworks. It is built and deployed on maven central. To use it with sbt add

libraryDependencies ++=
  Seq(
    "com.andersen-gott" %% "scravatar" % "1.0.4"
  )

to your build file

With Maven

<dependency>
  <groupId>com.andersen-gott</groupId>
  <artifactId>scravatar_2.13</artifactId>
  <version>1.0.4</version>
</dependency>