diff --git a/src/main/kotlin/dev/usbharu/hideout/controller/InboxController.kt b/src/main/kotlin/dev/usbharu/hideout/controller/InboxController.kt
new file mode 100644
index 00000000..0cba64e3
--- /dev/null
+++ b/src/main/kotlin/dev/usbharu/hideout/controller/InboxController.kt
@@ -0,0 +1,21 @@
+package dev.usbharu.hideout.controller
+
+import org.springframework.http.HttpStatus
+import org.springframework.http.ResponseEntity
+import org.springframework.web.bind.annotation.RequestBody
+import org.springframework.web.bind.annotation.RequestMapping
+import org.springframework.web.bind.annotation.RequestMethod
+import org.springframework.web.bind.annotation.RestController
+
+@RestController
+interface InboxController {
+    @RequestMapping(
+        "/inbox",
+        "/users/{username}/inbox",
+        produces = ["application/activity+json", "application/ld+json; profile=\"https://www.w3.org/ns/activitystreams\""],
+        method = [RequestMethod.GET, RequestMethod.POST]
+    )
+    suspend fun inbox(@RequestBody string: String): ResponseEntity<Unit> {
+        return ResponseEntity(HttpStatus.ACCEPTED)
+    }
+}
diff --git a/src/main/kotlin/dev/usbharu/hideout/controller/InboxControllerImpl.kt b/src/main/kotlin/dev/usbharu/hideout/controller/InboxControllerImpl.kt
new file mode 100644
index 00000000..002dee31
--- /dev/null
+++ b/src/main/kotlin/dev/usbharu/hideout/controller/InboxControllerImpl.kt
@@ -0,0 +1,15 @@
+package dev.usbharu.hideout.controller
+
+import dev.usbharu.hideout.service.ap.APService
+import org.springframework.http.HttpStatus
+import org.springframework.http.ResponseEntity
+import org.springframework.web.bind.annotation.RestController
+
+@RestController
+class InboxControllerImpl(private val apService: APService) : InboxController {
+    override suspend fun inbox(string: String): ResponseEntity<Unit> {
+        val parseActivity = apService.parseActivity(string)
+        apService.processActivity(string, parseActivity)
+        return ResponseEntity(HttpStatus.ACCEPTED)
+    }
+}
diff --git a/src/main/kotlin/dev/usbharu/hideout/controller/OutboxController.kt b/src/main/kotlin/dev/usbharu/hideout/controller/OutboxController.kt
new file mode 100644
index 00000000..ee003682
--- /dev/null
+++ b/src/main/kotlin/dev/usbharu/hideout/controller/OutboxController.kt
@@ -0,0 +1,16 @@
+package dev.usbharu.hideout.controller
+
+import org.springframework.http.HttpStatus
+import org.springframework.http.ResponseEntity
+import org.springframework.web.bind.annotation.RequestBody
+import org.springframework.web.bind.annotation.RequestMapping
+import org.springframework.web.bind.annotation.RequestMethod
+import org.springframework.web.bind.annotation.RestController
+
+@RestController
+interface OutboxController {
+    @RequestMapping("/outbox", "/users/{username}/outbox", method = [RequestMethod.POST, RequestMethod.GET])
+    fun outbox(@RequestBody string: String): ResponseEntity<Unit> {
+        return ResponseEntity(HttpStatus.ACCEPTED)
+    }
+}
diff --git a/src/main/kotlin/dev/usbharu/hideout/controller/OutboxControllerImpl.kt b/src/main/kotlin/dev/usbharu/hideout/controller/OutboxControllerImpl.kt
new file mode 100644
index 00000000..04dc227f
--- /dev/null
+++ b/src/main/kotlin/dev/usbharu/hideout/controller/OutboxControllerImpl.kt
@@ -0,0 +1,13 @@
+package dev.usbharu.hideout.controller
+
+import org.springframework.http.HttpStatus
+import org.springframework.http.ResponseEntity
+import org.springframework.web.bind.annotation.RequestBody
+import org.springframework.web.bind.annotation.RestController
+
+@RestController
+class OutboxControllerImpl : OutboxController {
+    override fun outbox(@RequestBody string: String): ResponseEntity<Unit> {
+        return ResponseEntity(HttpStatus.NOT_IMPLEMENTED)
+    }
+}
diff --git a/src/main/kotlin/dev/usbharu/hideout/controller/UserAPController.kt b/src/main/kotlin/dev/usbharu/hideout/controller/UserAPController.kt
new file mode 100644
index 00000000..5390fff2
--- /dev/null
+++ b/src/main/kotlin/dev/usbharu/hideout/controller/UserAPController.kt
@@ -0,0 +1,13 @@
+package dev.usbharu.hideout.controller
+
+import dev.usbharu.hideout.domain.model.ap.Person
+import org.springframework.http.ResponseEntity
+import org.springframework.web.bind.annotation.GetMapping
+import org.springframework.web.bind.annotation.PathVariable
+import org.springframework.web.bind.annotation.RestController
+
+@RestController
+interface UserAPController {
+    @GetMapping("/users/{username}")
+    suspend fun userAp(@PathVariable("username") username: String): ResponseEntity<Person>
+}
diff --git a/src/main/kotlin/dev/usbharu/hideout/controller/UserAPControllerImpl.kt b/src/main/kotlin/dev/usbharu/hideout/controller/UserAPControllerImpl.kt
new file mode 100644
index 00000000..90fb6155
--- /dev/null
+++ b/src/main/kotlin/dev/usbharu/hideout/controller/UserAPControllerImpl.kt
@@ -0,0 +1,15 @@
+package dev.usbharu.hideout.controller
+
+import dev.usbharu.hideout.domain.model.ap.Person
+import dev.usbharu.hideout.service.ap.APUserService
+import org.springframework.http.HttpStatus
+import org.springframework.http.ResponseEntity
+import org.springframework.web.bind.annotation.RestController
+
+@RestController
+class UserAPControllerImpl(private val apUserService: APUserService) : UserAPController {
+    override suspend fun userAp(username: String): ResponseEntity<Person> {
+        val person = apUserService.getPersonByName(username)
+        return ResponseEntity(person, HttpStatus.OK)
+    }
+}