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diff --git a/lib/pleroma/web/nodeinfo/nodeinfo_controller.ex b/lib/pleroma/web/nodeinfo/nodeinfo_controller.ex
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+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.Nodeinfo.NodeinfoController do
+  use Pleroma.Web, :controller
+
+  alias Pleroma.Web.Endpoint
+  alias Pleroma.Web.Nodeinfo.Nodeinfo
+
+  def schemas(conn, _params) do
+    response = %{
+      links: [
+        %{
+          rel: "http://nodeinfo.diaspora.software/ns/schema/2.0",
+          href: Endpoint.url() <> "/nodeinfo/2.0.json"
+        },
+        %{
+          rel: "http://nodeinfo.diaspora.software/ns/schema/2.1",
+          href: Endpoint.url() <> "/nodeinfo/2.1.json"
+        }
+      ]
+    }
+
+    json(conn, response)
+  end
+
+  # Schema definition: https://github.com/jhass/nodeinfo/blob/master/schemas/2.0/schema.json
+  # and https://github.com/jhass/nodeinfo/blob/master/schemas/2.1/schema.json
+  def nodeinfo(conn, %{"version" => version}) do
+    case Nodeinfo.get_nodeinfo(version) do
+      {:error, :missing} ->
+        render_error(conn, :not_found, "Nodeinfo schema version not handled")
+
+      node_info ->
+        conn
+        |> put_resp_header(
+          "content-type",
+          "application/json; profile=http://nodeinfo.diaspora.software/ns/schema/2.0#; charset=utf-8"
+        )
+        |> json(node_info)
+    end
+  end
+end