diff --git a/hideout/hideout-activitypub/src/main/kotlin/dev/usbharu/hideout/activitypub/application/nodeinfo/Nodeinfo2_0.kt b/hideout/hideout-activitypub/src/main/kotlin/dev/usbharu/hideout/activitypub/application/nodeinfo/Nodeinfo2_0.kt
index 5809ec69..db143776 100644
--- a/hideout/hideout-activitypub/src/main/kotlin/dev/usbharu/hideout/activitypub/application/nodeinfo/Nodeinfo2_0.kt
+++ b/hideout/hideout-activitypub/src/main/kotlin/dev/usbharu/hideout/activitypub/application/nodeinfo/Nodeinfo2_0.kt
@@ -1,3 +1,15 @@
 package dev.usbharu.hideout.activitypub.application.nodeinfo
 
-data class Nodeinfo2_0()
\ No newline at end of file
+data class Nodeinfo2_0(
+    val version: String = "2,0",
+    val software: Map<String, String>,
+    val protocol: List<String>,
+    val usage: NodeinfoUsage,
+    val openRegistration: Boolean,
+    val metadata: Map<String, Any>,
+)
+
+data class NodeinfoUsage(
+    val users: Map<String, String>,
+    val localPosts: Long,
+)
\ No newline at end of file
diff --git a/hideout/hideout-activitypub/src/main/kotlin/dev/usbharu/hideout/activitypub/application/nodeinfo/NodeinfoApplicationService.kt b/hideout/hideout-activitypub/src/main/kotlin/dev/usbharu/hideout/activitypub/application/nodeinfo/NodeinfoApplicationService.kt
new file mode 100644
index 00000000..345f660d
--- /dev/null
+++ b/hideout/hideout-activitypub/src/main/kotlin/dev/usbharu/hideout/activitypub/application/nodeinfo/NodeinfoApplicationService.kt
@@ -0,0 +1,43 @@
+package dev.usbharu.hideout.activitypub.application.nodeinfo
+
+import dev.usbharu.hideout.core.application.shared.AbstractApplicationService
+import dev.usbharu.hideout.core.application.shared.Transaction
+import dev.usbharu.hideout.core.config.ApplicationConfig
+import dev.usbharu.hideout.core.domain.model.support.principal.Principal
+import org.slf4j.Logger
+import org.slf4j.LoggerFactory
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.boot.info.BuildProperties
+import org.springframework.stereotype.Service
+
+@Service/*
+ * 今後ユーザーエージェントに応じてレスポンスを変更する可能性があるためApplicationServiceとして作成する commandは現時点ではUnitだが今後変化する可能性あり
+ */
+class NodeinfoApplicationService(
+    @Autowired(required = false) private val buildInfo: BuildProperties? = null,
+    private val applicationConfig: ApplicationConfig,
+    transaction: Transaction,
+) : AbstractApplicationService<Unit, Nodeinfo2_0>(
+    transaction, logger
+) {
+    override suspend fun internalExecute(command: Unit, principal: Principal): Nodeinfo2_0 {
+        return Nodeinfo2_0(
+            version = "2.0",
+            software = mapOf(
+                "name" to "hideout", "version" to (buildInfo?.version ?: "UNKNOWN")
+            ),
+            protocol = listOf("activitypub"),
+            NodeinfoUsage(
+                users = mapOf(
+                    "total" to "0", "activeMonth" to "0", "activeHalfyear" to "0"
+                ), localPosts = 0
+            ),
+            openRegistration = applicationConfig.private.not(),
+            metadata = mapOf()
+        )
+    }
+
+    companion object {
+        private val logger: Logger = LoggerFactory.getLogger(NodeinfoApplicationService::class.java)
+    }
+}
diff --git a/hideout/hideout-activitypub/src/main/kotlin/dev/usbharu/hideout/activitypub/interfaces/wellknown/NodeinfoController.kt b/hideout/hideout-activitypub/src/main/kotlin/dev/usbharu/hideout/activitypub/interfaces/wellknown/NodeinfoController.kt
index c2c63e27..7b6f2c95 100644
--- a/hideout/hideout-activitypub/src/main/kotlin/dev/usbharu/hideout/activitypub/interfaces/wellknown/NodeinfoController.kt
+++ b/hideout/hideout-activitypub/src/main/kotlin/dev/usbharu/hideout/activitypub/interfaces/wellknown/NodeinfoController.kt
@@ -1,15 +1,19 @@
 package dev.usbharu.hideout.activitypub.interfaces.wellknown
 
+import dev.usbharu.hideout.activitypub.application.nodeinfo.Nodeinfo2_0
+import dev.usbharu.hideout.activitypub.application.nodeinfo.NodeinfoApplicationService
 import dev.usbharu.hideout.core.config.ApplicationConfig
+import dev.usbharu.hideout.core.domain.model.support.principal.Anonymous
 import org.springframework.web.bind.annotation.GetMapping
-import org.springframework.web.bind.annotation.RequestMapping
 import org.springframework.web.bind.annotation.RestController
 
 @RestController
-@RequestMapping("/.well-known")
-class NodeinfoController(private val applicationConfig: ApplicationConfig) {
-    @GetMapping("/nodeinfo", produces = ["application/json"])
-    suspend fun nodeinfo(): XRD = XRD(
+class NodeinfoController(
+    private val applicationConfig: ApplicationConfig,
+    private val nodeinfoApplicationService: NodeinfoApplicationService,
+) {
+    @GetMapping("/.well-known/nodeinfo", produces = ["application/json"])
+    fun nodeinfo(): XRD = XRD(
         listOf(
             Link(
                 "http://nodeinfo.diaspora.software/ns/schema/2.1",
@@ -20,4 +24,14 @@ class NodeinfoController(private val applicationConfig: ApplicationConfig) {
             )
         )
     )
+
+    @GetMapping("/nodeinfo/2.0", produces = ["application/json"])
+    suspend fun nodeinfo2_0(): Nodeinfo2_0 {
+        return nodeinfoApplicationService.execute(Unit, Anonymous)
+    }
+
+    @GetMapping("/nodeinfo/2.1", produces = ["application/json"])
+    suspend fun nodeinfo2_1(): Nodeinfo2_0 {
+        return nodeinfoApplicationService.execute(Unit, Anonymous)
+    }
 }
\ No newline at end of file