diff --git a/lib/pleroma/web/api_spec/operations/chat_operation.ex b/lib/pleroma/web/api_spec/operations/chat_operation.ex
index 038ebb29d..5bd41ec4f 100644
--- a/lib/pleroma/web/api_spec/operations/chat_operation.ex
+++ b/lib/pleroma/web/api_spec/operations/chat_operation.ex
@@ -4,7 +4,12 @@
 
 defmodule Pleroma.Web.ApiSpec.ChatOperation do
   alias OpenApiSpex.Operation
-  alias OpenApiSpex.Schema
+  alias Pleroma.Web.ApiSpec.Helpers
+  alias Pleroma.Web.ApiSpec.Schemas.ChatMessageCreateRequest
+  alias Pleroma.Web.ApiSpec.Schemas.ChatMessageResponse
+  alias Pleroma.Web.ApiSpec.Schemas.ChatMessagesResponse
+  alias Pleroma.Web.ApiSpec.Schemas.ChatResponse
+  alias Pleroma.Web.ApiSpec.Schemas.ChatsResponse
 
   @spec open_api_operation(atom) :: Operation.t()
   def open_api_operation(action) do
@@ -16,16 +21,25 @@ defmodule Pleroma.Web.ApiSpec.ChatOperation do
     %Operation{
       tags: ["chat"],
       summary: "Create a chat",
+      parameters: [
+        Operation.parameter(
+          :ap_id,
+          :path,
+          :string,
+          "The ActivityPub id of the recipient of this chat.",
+          required: true,
+          example: "https://lain.com/users/lain"
+        )
+      ],
       responses: %{
         200 =>
-          Operation.response("Chat", "application/json", %Schema{
-            type: :object,
-            description: "A created chat is returned",
-            properties: %{
-              id: %Schema{type: :integer}
-            }
-          })
-      }
+          Operation.response("The created or existing chat", "application/json", ChatResponse)
+      },
+      security: [
+        %{
+          "oAuth" => ["write"]
+        }
+      ]
     }
   end
 
@@ -33,17 +47,19 @@ defmodule Pleroma.Web.ApiSpec.ChatOperation do
     %Operation{
       tags: ["chat"],
       summary: "Get a list of chats that you participated in",
+      parameters: [
+        Operation.parameter(:limit, :query, :integer, "How many results to return", example: 20),
+        Operation.parameter(:min_id, :query, :string, "Return only chats after this id"),
+        Operation.parameter(:max_id, :query, :string, "Return only chats before this id")
+      ],
       responses: %{
-        200 =>
-          Operation.response("Chats", "application/json", %Schema{
-            type: :array,
-            description: "A list of chats",
-            items: %Schema{
-              type: :object,
-              description: "A chat"
-            }
-          })
-      }
+        200 => Operation.response("The chats of the user", "application/json", ChatsResponse)
+      },
+      security: [
+        %{
+          "oAuth" => ["read"]
+        }
+      ]
     }
   end
 
@@ -51,17 +67,21 @@ defmodule Pleroma.Web.ApiSpec.ChatOperation do
     %Operation{
       tags: ["chat"],
       summary: "Get the most recent messages of the chat",
+      parameters: [
+        Operation.parameter(:id, :path, :string, "The ID of the Chat"),
+        Operation.parameter(:limit, :query, :integer, "How many results to return", example: 20),
+        Operation.parameter(:min_id, :query, :string, "Return only messages after this id"),
+        Operation.parameter(:max_id, :query, :string, "Return only messages before this id")
+      ],
       responses: %{
         200 =>
-          Operation.response("Messages", "application/json", %Schema{
-            type: :array,
-            description: "A list of chat messages",
-            items: %Schema{
-              type: :object,
-              description: "A chat message"
-            }
-          })
-      }
+          Operation.response("The messages in the chat", "application/json", ChatMessagesResponse)
+      },
+      security: [
+        %{
+          "oAuth" => ["read"]
+        }
+      ]
     }
   end
 
@@ -69,13 +89,23 @@ defmodule Pleroma.Web.ApiSpec.ChatOperation do
     %Operation{
       tags: ["chat"],
       summary: "Post a message to the chat",
+      parameters: [
+        Operation.parameter(:id, :path, :string, "The ID of the Chat")
+      ],
+      requestBody: Helpers.request_body("Parameters", ChatMessageCreateRequest, required: true),
       responses: %{
         200 =>
-          Operation.response("Message", "application/json", %Schema{
-            type: :object,
-            description: "A chat message"
-          })
-      }
+          Operation.response(
+            "The newly created ChatMessage",
+            "application/json",
+            ChatMessageResponse
+          )
+      },
+      security: [
+        %{
+          "oAuth" => ["write"]
+        }
+      ]
     }
   end
 end
diff --git a/lib/pleroma/web/api_spec/schemas/chat_message_create_request.ex b/lib/pleroma/web/api_spec/schemas/chat_message_create_request.ex
new file mode 100644
index 000000000..4dafcda43
--- /dev/null
+++ b/lib/pleroma/web/api_spec/schemas/chat_message_create_request.ex
@@ -0,0 +1,20 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ApiSpec.Schemas.ChatMessageCreateRequest do
+  alias OpenApiSpex.Schema
+  require OpenApiSpex
+
+  OpenApiSpex.schema(%{
+    title: "ChatMessageCreateRequest",
+    description: "POST body for creating an chat message",
+    type: :object,
+    properties: %{
+      content: %Schema{type: :string, description: "The content of your message"}
+    },
+    example: %{
+      "content" => "Hey wanna buy feet pics?"
+    }
+  })
+end
diff --git a/lib/pleroma/web/api_spec/schemas/chat_message_response.ex b/lib/pleroma/web/api_spec/schemas/chat_message_response.ex
new file mode 100644
index 000000000..e94c00369
--- /dev/null
+++ b/lib/pleroma/web/api_spec/schemas/chat_message_response.ex
@@ -0,0 +1,38 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ApiSpec.Schemas.ChatMessageResponse do
+  alias OpenApiSpex.Schema
+
+  require OpenApiSpex
+
+  OpenApiSpex.schema(%{
+    title: "ChatMessageResponse",
+    description: "Response schema for a ChatMessage",
+    type: :object,
+    properties: %{
+      id: %Schema{type: :string},
+      actor: %Schema{type: :string, description: "The ActivityPub id of the actor"},
+      chat_id: %Schema{type: :string},
+      content: %Schema{type: :string},
+      created_at: %Schema{type: :string, format: :datetime},
+      emojis: %Schema{type: :array}
+    },
+    example: %{
+      "actor" => "https://dontbulling.me/users/lain",
+      "chat_id" => "1",
+      "content" => "hey you again",
+      "created_at" => "2020-04-21T15:06:45.000Z",
+      "emojis" => [
+        %{
+          "static_url" => "https://dontbulling.me/emoji/Firefox.gif",
+          "visible_in_picker" => false,
+          "shortcode" => "firefox",
+          "url" => "https://dontbulling.me/emoji/Firefox.gif"
+        }
+      ],
+      "id" => "14"
+    }
+  })
+end
diff --git a/lib/pleroma/web/api_spec/schemas/chat_messages_response.ex b/lib/pleroma/web/api_spec/schemas/chat_messages_response.ex
new file mode 100644
index 000000000..302bdec95
--- /dev/null
+++ b/lib/pleroma/web/api_spec/schemas/chat_messages_response.ex
@@ -0,0 +1,41 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ApiSpec.Schemas.ChatMessagesResponse do
+  alias Pleroma.Web.ApiSpec.Schemas.ChatMessageResponse
+
+  require OpenApiSpex
+
+  OpenApiSpex.schema(%{
+    title: "ChatMessagesResponse",
+    description: "Response schema for multiple ChatMessages",
+    type: :array,
+    items: ChatMessageResponse,
+    example: [
+      %{
+        "emojis" => [
+          %{
+            "static_url" => "https://dontbulling.me/emoji/Firefox.gif",
+            "visible_in_picker" => false,
+            "shortcode" => "firefox",
+            "url" => "https://dontbulling.me/emoji/Firefox.gif"
+          }
+        ],
+        "created_at" => "2020-04-21T15:11:46.000Z",
+        "content" => "Check this out :firefox:",
+        "id" => "13",
+        "chat_id" => "1",
+        "actor" => "https://dontbulling.me/users/lain"
+      },
+      %{
+        "actor" => "https://dontbulling.me/users/lain",
+        "content" => "Whats' up?",
+        "id" => "12",
+        "chat_id" => "1",
+        "emojis" => [],
+        "created_at" => "2020-04-21T15:06:45.000Z"
+      }
+    ]
+  })
+end
diff --git a/lib/pleroma/web/api_spec/schemas/chat_response.ex b/lib/pleroma/web/api_spec/schemas/chat_response.ex
new file mode 100644
index 000000000..a80f4d173
--- /dev/null
+++ b/lib/pleroma/web/api_spec/schemas/chat_response.ex
@@ -0,0 +1,73 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ApiSpec.Schemas.ChatResponse do
+  alias OpenApiSpex.Schema
+
+  require OpenApiSpex
+
+  OpenApiSpex.schema(%{
+    title: "ChatResponse",
+    description: "Response schema for a Chat",
+    type: :object,
+    properties: %{
+      id: %Schema{type: :string},
+      recipient: %Schema{type: :string},
+      # TODO: Make this reference the account structure.
+      recipient_account: %Schema{type: :object},
+      unread: %Schema{type: :integer}
+    },
+    example: %{
+      "recipient" => "https://dontbulling.me/users/lain",
+      "recipient_account" => %{
+        "pleroma" => %{
+          "is_admin" => false,
+          "confirmation_pending" => false,
+          "hide_followers_count" => false,
+          "is_moderator" => false,
+          "hide_favorites" => true,
+          "ap_id" => "https://dontbulling.me/users/lain",
+          "hide_follows_count" => false,
+          "hide_follows" => false,
+          "background_image" => nil,
+          "skip_thread_containment" => false,
+          "hide_followers" => false,
+          "relationship" => %{},
+          "tags" => []
+        },
+        "avatar" =>
+          "https://dontbulling.me/media/065a4dd3c6740dab13ff9c71ec7d240bb9f8be9205c9e7467fb2202117da1e32.jpg",
+        "following_count" => 0,
+        "header_static" => "https://originalpatchou.li/images/banner.png",
+        "source" => %{
+          "sensitive" => false,
+          "note" => "lain",
+          "pleroma" => %{
+            "discoverable" => false,
+            "actor_type" => "Person"
+          },
+          "fields" => []
+        },
+        "statuses_count" => 1,
+        "locked" => false,
+        "created_at" => "2020-04-16T13:40:15.000Z",
+        "display_name" => "lain",
+        "fields" => [],
+        "acct" => "lain@dontbulling.me",
+        "id" => "9u6Qw6TAZANpqokMkK",
+        "emojis" => [],
+        "avatar_static" =>
+          "https://dontbulling.me/media/065a4dd3c6740dab13ff9c71ec7d240bb9f8be9205c9e7467fb2202117da1e32.jpg",
+        "username" => "lain",
+        "followers_count" => 0,
+        "header" => "https://originalpatchou.li/images/banner.png",
+        "bot" => false,
+        "note" => "lain",
+        "url" => "https://dontbulling.me/users/lain"
+      },
+      "id" => "1",
+      "unread" => 2
+    }
+  })
+end
diff --git a/lib/pleroma/web/api_spec/schemas/chats_response.ex b/lib/pleroma/web/api_spec/schemas/chats_response.ex
new file mode 100644
index 000000000..3349e0691
--- /dev/null
+++ b/lib/pleroma/web/api_spec/schemas/chats_response.ex
@@ -0,0 +1,69 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ApiSpec.Schemas.ChatsResponse do
+  alias Pleroma.Web.ApiSpec.Schemas.ChatResponse
+
+  require OpenApiSpex
+
+  OpenApiSpex.schema(%{
+    title: "ChatsResponse",
+    description: "Response schema for multiple Chats",
+    type: :array,
+    items: ChatResponse,
+    example: [
+      %{
+        "recipient" => "https://dontbulling.me/users/lain",
+        "recipient_account" => %{
+          "pleroma" => %{
+            "is_admin" => false,
+            "confirmation_pending" => false,
+            "hide_followers_count" => false,
+            "is_moderator" => false,
+            "hide_favorites" => true,
+            "ap_id" => "https://dontbulling.me/users/lain",
+            "hide_follows_count" => false,
+            "hide_follows" => false,
+            "background_image" => nil,
+            "skip_thread_containment" => false,
+            "hide_followers" => false,
+            "relationship" => %{},
+            "tags" => []
+          },
+          "avatar" =>
+            "https://dontbulling.me/media/065a4dd3c6740dab13ff9c71ec7d240bb9f8be9205c9e7467fb2202117da1e32.jpg",
+          "following_count" => 0,
+          "header_static" => "https://originalpatchou.li/images/banner.png",
+          "source" => %{
+            "sensitive" => false,
+            "note" => "lain",
+            "pleroma" => %{
+              "discoverable" => false,
+              "actor_type" => "Person"
+            },
+            "fields" => []
+          },
+          "statuses_count" => 1,
+          "locked" => false,
+          "created_at" => "2020-04-16T13:40:15.000Z",
+          "display_name" => "lain",
+          "fields" => [],
+          "acct" => "lain@dontbulling.me",
+          "id" => "9u6Qw6TAZANpqokMkK",
+          "emojis" => [],
+          "avatar_static" =>
+            "https://dontbulling.me/media/065a4dd3c6740dab13ff9c71ec7d240bb9f8be9205c9e7467fb2202117da1e32.jpg",
+          "username" => "lain",
+          "followers_count" => 0,
+          "header" => "https://originalpatchou.li/images/banner.png",
+          "bot" => false,
+          "note" => "lain",
+          "url" => "https://dontbulling.me/users/lain"
+        },
+        "id" => "1",
+        "unread" => 2
+      }
+    ]
+  })
+end
diff --git a/test/web/pleroma_api/controllers/chat_controller_test.exs b/test/web/pleroma_api/controllers/chat_controller_test.exs
index 0750c7273..52a34d23f 100644
--- a/test/web/pleroma_api/controllers/chat_controller_test.exs
+++ b/test/web/pleroma_api/controllers/chat_controller_test.exs
@@ -5,8 +5,14 @@ defmodule Pleroma.Web.PleromaAPI.ChatControllerTest do
   use Pleroma.Web.ConnCase, async: true
 
   alias Pleroma.Chat
+  alias Pleroma.Web.ApiSpec
+  alias Pleroma.Web.ApiSpec.Schemas.ChatResponse
+  alias Pleroma.Web.ApiSpec.Schemas.ChatsResponse
+  alias Pleroma.Web.ApiSpec.Schemas.ChatMessageResponse
+  alias Pleroma.Web.ApiSpec.Schemas.ChatMessagesResponse
   alias Pleroma.Web.CommonAPI
 
+  import OpenApiSpex.TestAssertions
   import Pleroma.Factory
 
   describe "POST /api/v1/pleroma/chats/:id/messages" do
@@ -24,6 +30,7 @@ defmodule Pleroma.Web.PleromaAPI.ChatControllerTest do
 
       assert result["content"] == "Hallo!!"
       assert result["chat_id"] == chat.id |> to_string()
+      assert_schema(result, "ChatMessageResponse", ApiSpec.spec())
     end
   end
 
@@ -45,6 +52,7 @@ defmodule Pleroma.Web.PleromaAPI.ChatControllerTest do
         |> json_response(200)
 
       assert length(result) == 20
+      assert_schema(result, "ChatMessagesResponse", ApiSpec.spec())
 
       result =
         conn
@@ -52,6 +60,7 @@ defmodule Pleroma.Web.PleromaAPI.ChatControllerTest do
         |> json_response(200)
 
       assert length(result) == 10
+      assert_schema(result, "ChatMessagesResponse", ApiSpec.spec())
     end
 
     test "it returns the messages for a given chat", %{conn: conn, user: user} do
@@ -76,6 +85,7 @@ defmodule Pleroma.Web.PleromaAPI.ChatControllerTest do
       end)
 
       assert length(result) == 3
+      assert_schema(result, "ChatMessagesResponse", ApiSpec.spec())
 
       # Trying to get the chat of a different user
       result =
@@ -99,6 +109,7 @@ defmodule Pleroma.Web.PleromaAPI.ChatControllerTest do
         |> json_response(200)
 
       assert result["id"]
+      assert_schema(result, "ChatResponse", ApiSpec.spec())
     end
   end
 
@@ -117,6 +128,7 @@ defmodule Pleroma.Web.PleromaAPI.ChatControllerTest do
         |> json_response(200)
 
       assert length(result) == 20
+      assert_schema(result, "ChatsResponse", ApiSpec.spec())
 
       result =
         conn
@@ -124,6 +136,8 @@ defmodule Pleroma.Web.PleromaAPI.ChatControllerTest do
         |> json_response(200)
 
       assert length(result) == 10
+
+      assert_schema(result, "ChatsResponse", ApiSpec.spec())
     end
 
     test "it return a list of chats the current user is participating in, in descending order of updates",
@@ -154,6 +168,34 @@ defmodule Pleroma.Web.PleromaAPI.ChatControllerTest do
                chat_3.id |> to_string(),
                chat_1.id |> to_string()
              ]
+
+      assert_schema(result, "ChatsResponse", ApiSpec.spec())
+    end
+  end
+
+  describe "schemas" do
+    test "Chat example matches schema" do
+      api_spec = ApiSpec.spec()
+      schema = ChatResponse.schema()
+      assert_schema(schema.example, "ChatResponse", api_spec)
+    end
+
+    test "Chats example matches schema" do
+      api_spec = ApiSpec.spec()
+      schema = ChatsResponse.schema()
+      assert_schema(schema.example, "ChatsResponse", api_spec)
+    end
+
+    test "ChatMessage example matches schema" do
+      api_spec = ApiSpec.spec()
+      schema = ChatMessageResponse.schema()
+      assert_schema(schema.example, "ChatMessageResponse", api_spec)
+    end
+
+    test "ChatsMessage example matches schema" do
+      api_spec = ApiSpec.spec()
+      schema = ChatMessagesResponse.schema()
+      assert_schema(schema.example, "ChatMessagesResponse", api_spec)
     end
   end
 end