Compile-time dependency injection for Kotlin Multiplatform (KMP) with first-class Compose Multiplatform support. Hilt/Dagger-like developer experience — if it compiles, it works.

Anchor DI is a compile-time DI framework for KMP. It uses KSP (Kotlin Symbol Processing) to analyze your annotated code and generate a static dependency graph at build time. No runtime reflection, no service locator — just generated Kotlin code that wires your dependencies.

Built for: Android, iOS, Desktop (JVM), and Web (Wasm). Same API across all platforms.

Anchor DI validates your dependency graph at compile time — missing bindings, cycles, and scope violations fail the build, not your app.

// build.gradle.kts (shared module)
plugins {
    id("com.google.devtools.ksp") version "2.3.5"
}

repositories { mavenCentral() }

dependencies {
    implementation("io.github.12345debdut:anchor-di-api:x.x.x")
    implementation("io.github.12345debdut:anchor-di-core:x.x.x")
    implementation("io.github.12345debdut:anchor-di-compose:x.x.x")  // For Compose UI
    add("kspCommonMainMetadata", "io.github.12345debdut:anchor-di-ksp:x.x.x")
    add("kspAndroid", "io.github.12345debdut:anchor-di-ksp:x.x.x")
    add("kspIosArm64", "io.github.12345debdut:anchor-di-ksp:x.x.x")
    add("kspIosSimulatorArm64", "io.github.12345debdut:anchor-di-ksp:x.x.x")
}

@Singleton
class UserRepository @Inject constructor(
    private val api: UserApi
)

@AnchorViewModel
class UserViewModel @Inject constructor(
    private val repository: UserRepository
) : ViewModel()

@Composable
fun UserScreen(
    viewModel: UserViewModel = viewModelAnchor()
) {
    // ViewModel and dependencies are injected automatically
}

Anchor.init(*getAnchorContributors())

Call once in Application.onCreate() (Android), your app entry (iOS), or before the first Composable.

Prerequisites: Kotlin 1.9+, KSP 2.3+, Gradle 8+

Full documentation — installation, core concepts, scopes, Compose integration, KMP setup, guides, and troubleshooting.

Current version: see Maven Central badge above.

• Core DI, KSP validation, Compose & navigation integration
• Published to Maven Central

Contributions welcome. See CONTRIBUTING.md for how to build, run tests, and contribute.

Apache License 2.0