Files
google__adk-docs/docs/get-started/installation.md
Kristopher Overholt 50f7df7f46 Add Kotlin language support to ADK docs (#1768)
* Add Kotlin to hero / front page

* Add quickstart page for Kotlin

* Complete Kotlin quickstart guide and fix hero code sample (#2)

* Replace GitHub repo links with language icons in header (#3)

* Fix header icon FOUC and homepage font weight regression (#4)

* Testing staging pipeline

* Revert test edit (for staging pipeline)

* Update language icon tooltips to indicate GitHub destination (#5)

* Add link to ADK Kotlin release notes (#7)

* Initial commit of ADK Kotlin API reference docs (#6)

* Add script to generate ADK Kotlin API reference docs (#8)

* Update links and link checker ignore list (temporarily) (#9)

* Add ADK Kotlin for Android getting started guide to Advanced setup page (#10)

* Add advanced setup page with steps to "Use ADK Kotlin in Android projects"

* Update temp link checker rules

* Add placeholder folder for adk-samples (#13)

* adding linter/compilation checks for kotlin snippets (#12)

* adding linter/compilation checks for kotlin snippets

* Add Kotlin validation scripts

* Initial commit of Kotlin sample agents for adk-samples (#15)

* Adding kotlin snippet for llm agents (#16)

* Adding kotlin snippets to  Events (#17)

* Pull changes to docs/events/index.md from glaforge-kotlin-snippets

* fixing kotlin event timestamp and longRunningToolIds

* Fix language tags (#19)

* Fix language tags

* Update

* Fix wrapping

* Fix wrapping (again)

* Fix wrapping/format

* Fix language tag on integration page

* Enable check_paths in PyMdown Snippets Extension to make the build fail if a snippet can't be found (#20)

* Update mkdocs config (#21)

* Fix broken links, update URLs to adk.dev, and improve (temp) lychee config (#22)

* Add Kotlin/maven badge to README (#23)

* Adding Kotlin snippets for artifacts  (#18)

* Pull Kotlin snippets for artifacts from glaforge-kotlin-snippets

* Add comprehensive Kotlin snippets for artifacts

* Refactor artifacts documentation to use external Kotlin snippets

* Update Kotlin model to gemini-flash-latest

* Fix GCS initialization in Kotlin artifact snippet

* afixi failing test with capital-agent added to files_to_check

* Fix snippet label syntax for MkDocs build

* Configure proper Gradle project for Kotlin snippets and fix dependencies

* Add KSP support and generated sources to Kotlin snippets build

* fixing capital_agent turnComplete

* Fix syntax error in build.gradle.kts by removing invalid placeholders (#25)

* Adding Kotlin snippets to google-gemini.md (#27)

Pulling kotlin changes to google-gemini.md from glaforge-kotlin-snippets

* Add a warning about not adding an api key to production code. (#28)

* Add a warning about not adding an api key to production code.

* Update note

---------

Co-authored-by: Kristopher Overholt <koverholt@google.com>

* Add ADK Demo App sample showcasing Gemini-powered agents (#29)

This sample demonstrates how to use the Google ADK (Agent Development Kit) in an Android application to create a chat interface powered by a Gemini-based "Fun Facts" agent. The implementation features:
*   Integration with the Kotlin ADK core and processor libraries.
*   A `FunFactsAgent` defined using `LlmAgent` and the Gemini model.
*   A `ChatViewModel` utilizing `InMemoryRunner` for asynchronous message streaming.
*   A modern UI built with Jetpack Compose and Material 3.
*   Build configuration logic for secure API key management via environment variables or `local.properties`.

* Update Kotlin docs and samples to align with adk-kotlin API changes (#30)

Rename GeminiModel to Gemini, @AdkTool/@AdkParam to @Tool/@Param,
adkTools() to generatedTools(), replace DebugRunner with InMemoryRunner,
fix AgentLoader import path, use SingleAgentLoader, bump Kotlin to
2.3.21 and KSP to 2.3.7, and update Android minSdk from 24 to 26.

* adding kotlin info to READMEs (#14)

* Reorganize Android sample agent and add READMEs (#31)

* Move Android sample agent

* Update repo README, add Android README, update sample agent README

* Minor edit to language support tags (#32)

* Remove blog post link (#33)

Will re-add after it's published

* Remove examples link (#34)

* Adding Kotlin snippets for Sessions docs (#26)

* initial kotlins snippets additions to sessions docs

* Updating memory docs with kotlin snippets

* Adding kotlin snippets to session state docs.

* update model to gemini-flash-latest

* sessions examples clean-up

* fixing sessions snippet markers

* adding kotlin session snippets to files to test

* adding callback to memory_example

* Fixing capital agent snippet  (#35)

Fixing file name
Updating adkTool > Tool
Updating GeminiModel > Gemini

* Adding kotlin snippets for tools docs (#36)

* adding function tool kotlin snippets

* adding function_tools snippets to files to test

* Adding kotlin snippets to observability docs (#37)

* initial kotlin observability updates

* adding observability snippets to file check (#38)

* Adding Kotlin snippets to Callbacks docs (#39)

*  kotlin callbacks snippets

* adding callbacks snippets to file check

* Align Kotlin and KSP versions with published 0.1.0 artifacts (#40)

* switch CLI entry points from InMemoryRunner to ReplRunner (#41)

* Switch CLI entry points from InMemoryRunner to ReplRunner

* Fix wording

* Update API reference docs for Kotlin, 2026-05-18 (#42)

* Remove ADK on Android note until published (#43)

* Update Kotlin code samples (#44)

* Rename GeminiModel to Gemini in Kotlin snippets and docs

* Remove broken SessionKey call and use sessionId directly in AgentTool snippet

* Rewrite Go hero snippet to use llmagent API

* Use isFinalResponse with safe access in CapitalAgent snippet

* Use Role.USER constant instead of raw string in SetupExample

* Use full semver v0.1.0 in Kotlin language support tags

* Remove Android setup steps, moving to new property (#45)

* Tutorial Kotlin agent (#46)

* Adding multi-tool-agent snippet and updating tutorial
* Fixing Go language order on tutorial page
* adding multi tool agent example to files to test

* Inline Kotlin get-started code sample

* Kotlin Multi agents snippets (#47)

* Multi-agent kotlin snippets

* Fixing docs tags in multiagent example

* Fix Kotlin language support tags, code samples, and google-gemini.md cleanup (#48)

* Add Kotlin v0.1.0 to language support tags across docs

* Fix MultiToolAgent.kt model string and argument style

* Update MultiAgentExample.kt to use gemini-flash-latest model string

* Fix google-gemini.md: add Kotlin sample, remove unsupported Java tabs

* Remove explicit apiKey from CallbackBasic.kt for consistency

* Standardize Gemini() constructor to use named args in all snippets

* Remove adk-samples directory (moved to google/adk-samples#1969)

* Remove adk-samples directory (moved to google/adk-samples#1969) (#49)

* Update API reference docs for ADK Kotlin 0.1.0 (#50)

* Remove adk-samples directory (moved to google/adk-samples#1969)

* Update API reference docs for ADK Kotlin 0.1.0

* Remove kotlin lycheeignore config (#51)

* Remove adk-samples directory (moved to google/adk-samples#1969)

* Remove Kotlin .lycheeignore config links

---------

Co-authored-by: Toni Klopfenstein <2359976+ToniCorinne@users.noreply.github.com>
Co-authored-by: Jolanda Verhoef <JolandaVerhoef@users.noreply.github.com>
2026-05-19 11:43:42 -05:00

4.4 KiB

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Advanced setup

This page provides detailed installation and configuration instructions for ADK across supported languages. For a guided introduction, start with the quickstart for your language.

=== "Python"

**Create & activate virtual environment**

We recommend creating a virtual Python environment using
[venv](https://docs.python.org/3/library/venv.html):

```shell
python3 -m venv .venv
```

Now, you can activate the virtual environment using the appropriate command
for your operating system and environment:

```
# Mac / Linux
source .venv/bin/activate

# Windows CMD:
.venv\Scripts\activate.bat

# Windows PowerShell:
.venv\Scripts\Activate.ps1
```

**Install ADK**

```bash
pip install google-adk
```

(Optional) Verify your installation:

```bash
pip show google-adk
```

=== "TypeScript"

**Install ADK and ADK DevTools**

```bash
npm install @google/adk @google/adk-devtools
```

=== "Go"

**Create a new Go module**

If you are starting a new project, you can create a new Go module:

```shell
go mod init example.com/my-agent
```

**Install ADK**

To add the ADK to your project, run the following command:

```shell
go get google.golang.org/adk
```

This will add the ADK as a dependency to your `go.mod` file.

(Optional) Verify your installation by checking your `go.mod` file for the
`google.golang.org/adk` entry.

=== "Java"

You can either use maven or gradle to add the `google-adk` and
`google-adk-dev` package.

`google-adk` is the core Java ADK library. Java ADK also comes with a
pluggable example SpringBoot server to run your agents seamlessly. This
optional package is present as part of `google-adk-dev`.

If you are using maven, add the following to your `pom.xml`:

```xml title="pom.xml"
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.example.agent</groupId>
    <artifactId>adk-agents</artifactId>
    <version>1.0-SNAPSHOT</version>

    <!-- Specify the version of Java you'll be using -->
    <properties>
        <maven.compiler.source>17</maven.compiler.source>
        <maven.compiler.target>17</maven.compiler.target>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <dependencies>
        <!-- The ADK core dependency -->
        <dependency>
            <groupId>com.google.adk</groupId>
            <artifactId>google-adk</artifactId>
            <version>1.2.0</version>
        </dependency>
        <!-- The ADK dev web UI to debug your agent -->
        <dependency>
            <groupId>com.google.adk</groupId>
            <artifactId>google-adk-dev</artifactId>
            <version>1.2.0</version>
        </dependency>
    </dependencies>

</project>
```

Here's a [complete
pom.xml](https://github.com/google/adk-docs/tree/main/examples/java/cloud-run/pom.xml)
file for reference.

If you are using gradle, add the dependency to your build.gradle:

```title="build.gradle"
dependencies {
    implementation 'com.google.adk:google-adk:1.2.0'
    implementation 'com.google.adk:google-adk-dev:1.2.0'
}
```

You should also configure Gradle to pass `-parameters` to `javac`.
(Alternatively, use `@Schema(name = "...")`).

=== "Kotlin"

**Use ADK Kotlin on the JVM**

For Kotlin on the JVM, add the ADK core library and the KSP annotation
processor to your `build.gradle.kts`:

```kotlin title="build.gradle.kts"
plugins {
    kotlin("jvm") version "2.1.20"
    id("com.google.devtools.ksp") version "2.1.20-2.0.1"
}

dependencies {
    implementation("com.google.adk:google-adk-kotlin-core:0.1.0")
    ksp("com.google.adk:google-adk-kotlin-processor:0.1.0")
}
```

The KSP processor generates code for the `@Tool` annotation used to
register function tools. See the [Kotlin Quickstart](/get-started/kotlin/)
for a complete project setup.