diff --git a/example/example-consumer-server/src/main/kotlin/me/ahoo/coapi/example/consumer/ConsumerServer.kt b/example/example-consumer-server/src/main/kotlin/me/ahoo/coapi/example/consumer/ConsumerServer.kt
index 111f3f4..3efd306 100644
--- a/example/example-consumer-server/src/main/kotlin/me/ahoo/coapi/example/consumer/ConsumerServer.kt
+++ b/example/example-consumer-server/src/main/kotlin/me/ahoo/coapi/example/consumer/ConsumerServer.kt
@@ -34,7 +34,7 @@ import org.springframework.boot.runApplication
         TodoClient::class
     ]
 )
-@SpringBootApplication
+@SpringBootApplication(scanBasePackages = ["me.ahoo.coapi.example.consumer.client"])
 class ConsumerServer
 
 fun main(args: Array<String>) {
diff --git a/example/example-consumer-server/src/main/resources/application.yaml b/example/example-consumer-server/src/main/resources/application.yaml
index 954896c..1880666 100644
--- a/example/example-consumer-server/src/main/resources/application.yaml
+++ b/example/example-consumer-server/src/main/resources/application.yaml
@@ -19,6 +19,8 @@ spring:
               - host: localhost
                 port: 8010
 coapi:
+  base-packages:
+    - me.ahoo.coapi.example.consumer.client
   clients:
     ServiceApiClientUseFilterBeanName:
       reactive:
@@ -29,4 +31,4 @@ coapi:
       reactive:
         filter:
           types:
-            - org.springframework.cloud.client.loadbalancer.reactive.LoadBalancedExchangeFilterFunction
\ No newline at end of file
+            - org.springframework.cloud.client.loadbalancer.reactive.LoadBalancedExchangeFilterFunction
diff --git a/spring-boot-starter/src/main/kotlin/me/ahoo/coapi/spring/boot/starter/AutoCoApiRegistrar.kt b/spring-boot-starter/src/main/kotlin/me/ahoo/coapi/spring/boot/starter/AutoCoApiRegistrar.kt
index 0f45448..00f388e 100644
--- a/spring-boot-starter/src/main/kotlin/me/ahoo/coapi/spring/boot/starter/AutoCoApiRegistrar.kt
+++ b/spring-boot-starter/src/main/kotlin/me/ahoo/coapi/spring/boot/starter/AutoCoApiRegistrar.kt
@@ -20,18 +20,45 @@ import me.ahoo.coapi.spring.CoApiDefinition.Companion.toCoApiDefinition
 import org.springframework.beans.factory.annotation.AnnotatedBeanDefinition
 import org.springframework.boot.autoconfigure.AutoConfigurationPackages
 import org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider
+import org.springframework.core.env.Environment
 import org.springframework.core.type.AnnotationMetadata
 import org.springframework.core.type.filter.AnnotationTypeFilter
 
 class AutoCoApiRegistrar : AbstractCoApiRegistrar() {
 
+    private fun getCoApiBasePackages(): List<String> {
+        val basePackages = env.getProperty(CoApiProperties.COAPI_BASE_PACKAGES)
+        if (basePackages?.isNotBlank() == true) {
+            return basePackages.split(",").distinct().toList()
+        }
+        var currentIndex = 0
+        buildList {
+            while (true) {
+                val basePackage = env.getProperty("${CoApiProperties.COAPI_BASE_PACKAGES}[$currentIndex]")
+                if (basePackage.isNullOrBlank()) {
+                    return this
+                }
+                add(basePackage)
+                currentIndex++
+            }
+        }
+    }
+
+    private fun getScanBasePackages(): List<String> {
+        val coApiBasePackages = getCoApiBasePackages()
+        if (coApiBasePackages.isNotEmpty()) {
+            return coApiBasePackages
+        }
+        return AutoConfigurationPackages.get(appContext)
+    }
+
     override fun getCoApiDefinitions(importingClassMetadata: AnnotationMetadata): Set<CoApiDefinition> {
-        val scanBasePackages = AutoConfigurationPackages.get(appContext).toSet()
+        val scanBasePackages = getScanBasePackages()
         return scanBasePackages.toApiClientDefinitions()
     }
 
-    private fun Set<String>.toApiClientDefinitions(): Set<CoApiDefinition> {
-        val scanner = ApiClientScanner()
+    private fun List<String>.toApiClientDefinitions(): Set<CoApiDefinition> {
+        val scanner = ApiClientScanner(false, env)
         return flatMap { basePackage ->
             scanner.findCandidateComponents(basePackage)
         }.map { beanDefinition ->
@@ -40,7 +67,8 @@ class AutoCoApiRegistrar : AbstractCoApiRegistrar() {
     }
 }
 
-class ApiClientScanner : ClassPathScanningCandidateComponentProvider(false) {
+class ApiClientScanner(useDefaultFilters: Boolean, environment: Environment) :
+    ClassPathScanningCandidateComponentProvider(useDefaultFilters, environment) {
     init {
         addIncludeFilter(AnnotationTypeFilter(CoApi::class.java))
     }
diff --git a/spring-boot-starter/src/main/kotlin/me/ahoo/coapi/spring/boot/starter/CoApiProperties.kt b/spring-boot-starter/src/main/kotlin/me/ahoo/coapi/spring/boot/starter/CoApiProperties.kt
index 9601abc..2f5c757 100644
--- a/spring-boot-starter/src/main/kotlin/me/ahoo/coapi/spring/boot/starter/CoApiProperties.kt
+++ b/spring-boot-starter/src/main/kotlin/me/ahoo/coapi/spring/boot/starter/CoApiProperties.kt
@@ -25,8 +25,13 @@ const val ENABLED_SUFFIX_KEY = ".enabled"
 data class CoApiProperties(
     @DefaultValue("true") var enabled: Boolean = true,
     val mode: ClientMode = ClientMode.AUTO,
+    val basePackages: List<String> = emptyList(),
     val clients: Map<String, ClientDefinition> = emptyMap(),
 ) : ClientProperties {
+    companion object {
+        const val COAPI_BASE_PACKAGES = "$COAPI_PREFIX.base-packages"
+    }
+
     override fun getFilter(coApiName: String): ClientProperties.FilterDefinition {
         return clients[coApiName]?.reactive?.filter ?: ClientProperties.FilterDefinition()
     }
diff --git a/spring-boot-starter/src/test/kotlin/me/ahoo/coapi/spring/boot/starter/CoApiAutoConfigurationTest.kt b/spring-boot-starter/src/test/kotlin/me/ahoo/coapi/spring/boot/starter/CoApiAutoConfigurationTest.kt
index cf7cbdf..1e3cfe7 100644
--- a/spring-boot-starter/src/test/kotlin/me/ahoo/coapi/spring/boot/starter/CoApiAutoConfigurationTest.kt
+++ b/spring-boot-starter/src/test/kotlin/me/ahoo/coapi/spring/boot/starter/CoApiAutoConfigurationTest.kt
@@ -95,6 +95,67 @@ class CoApiAutoConfigurationTest {
                 context.getBean(ServiceApiClientUseFilterType::class.java)
             }
     }
+
+    @Test
+    fun basePackages() {
+        ApplicationContextRunner()
+            .withPropertyValues("github.url=https://api.github.com")
+            .withPropertyValues("${CoApiProperties.COAPI_BASE_PACKAGES}=me.ahoo.coapi.spring.boot.starter")
+            .withPropertyValues(filterNameProperty)
+            .withPropertyValues(filterTypeProperty)
+            .withBean("loadBalancerExchangeFilterFunction", LoadBalancedExchangeFilterFunction::class.java, { mockk() })
+            .withUserConfiguration(WebClientAutoConfiguration::class.java)
+            .withUserConfiguration(CoApiAutoConfiguration::class.java)
+            .run { context ->
+                AssertionsForInterfaceTypes.assertThat(context)
+                    .hasSingleBean(ReactiveHttpExchangeAdapterFactory::class.java)
+                    .hasSingleBean(me.ahoo.coapi.spring.boot.starter.GitHubApiClient::class.java)
+            }
+    }
+
+    @Test
+    fun basePackagesMultiple() {
+        ApplicationContextRunner()
+            .withPropertyValues("github.url=https://api.github.com")
+            .withPropertyValues(
+                "${CoApiProperties.COAPI_BASE_PACKAGES}=me.ahoo.coapi.spring.boot.starter" +
+                    ",me.ahoo.coapi.example.consumer.client"
+            )
+            .withPropertyValues(filterNameProperty)
+            .withPropertyValues(filterTypeProperty)
+            .withBean("loadBalancerExchangeFilterFunction", LoadBalancedExchangeFilterFunction::class.java, { mockk() })
+            .withUserConfiguration(WebClientAutoConfiguration::class.java)
+            .withUserConfiguration(CoApiAutoConfiguration::class.java)
+            .run { context ->
+                AssertionsForInterfaceTypes.assertThat(context)
+                    .hasSingleBean(ReactiveHttpExchangeAdapterFactory::class.java)
+                    .hasSingleBean(me.ahoo.coapi.spring.boot.starter.GitHubApiClient::class.java)
+                    .hasSingleBean(ServiceApiClient::class.java)
+            }
+    }
+
+    @Test
+    fun basePackagesYaml() {
+        ApplicationContextRunner()
+            .withPropertyValues("github.url=https://api.github.com")
+            .withPropertyValues(
+                "${CoApiProperties.COAPI_BASE_PACKAGES}[0]=me.ahoo.coapi.spring.boot.starter"
+            )
+            .withPropertyValues(
+                "${CoApiProperties.COAPI_BASE_PACKAGES}[1]=me.ahoo.coapi.example.consumer.client"
+            )
+            .withPropertyValues(filterNameProperty)
+            .withPropertyValues(filterTypeProperty)
+            .withBean("loadBalancerExchangeFilterFunction", LoadBalancedExchangeFilterFunction::class.java, { mockk() })
+            .withUserConfiguration(WebClientAutoConfiguration::class.java)
+            .withUserConfiguration(CoApiAutoConfiguration::class.java)
+            .run { context ->
+                AssertionsForInterfaceTypes.assertThat(context)
+                    .hasSingleBean(ReactiveHttpExchangeAdapterFactory::class.java)
+                    .hasSingleBean(me.ahoo.coapi.spring.boot.starter.GitHubApiClient::class.java)
+                    .hasSingleBean(ServiceApiClient::class.java)
+            }
+    }
 }
 
 @SpringBootApplication
diff --git a/spring-boot-starter/src/test/kotlin/me/ahoo/coapi/spring/boot/starter/CoApiPropertiesTest.kt b/spring-boot-starter/src/test/kotlin/me/ahoo/coapi/spring/boot/starter/CoApiPropertiesTest.kt
index bb6753d..07294c6 100644
--- a/spring-boot-starter/src/test/kotlin/me/ahoo/coapi/spring/boot/starter/CoApiPropertiesTest.kt
+++ b/spring-boot-starter/src/test/kotlin/me/ahoo/coapi/spring/boot/starter/CoApiPropertiesTest.kt
@@ -35,6 +35,12 @@ class CoApiPropertiesTest {
         assertThat(properties.enabled, equalTo(true))
     }
 
+    @Test
+    fun getBasePackages() {
+        val properties = CoApiProperties()
+        assertThat(properties.basePackages, Matchers.empty())
+    }
+
     @Test
     fun getFilterIfDefault() {
         val properties = CoApiProperties()