diff --git a/docs/developer/rest_api_doc.md b/docs/developer/rest_api_doc.md
index acfab42128..0694f2b8a9 100644
--- a/docs/developer/rest_api_doc.md
+++ b/docs/developer/rest_api_doc.md
@@ -69,7 +69,7 @@ filtered and produces an error, if found.
 suite. To manually check the generated spec file, run
 
 ```bash
-rucio/tools/test/check_rest_api_documentation.sh FILE
+rucio_documentation/tools/check_rest_api_documentation.sh FILE
 ```
 
 ## Tips
diff --git a/tools/check_rest_api_documentation.sh b/tools/check_rest_api_documentation.sh
new file mode 100644
index 0000000000..cd57b63e87
--- /dev/null
+++ b/tools/check_rest_api_documentation.sh
@@ -0,0 +1,39 @@
+#!/bin/bash
+# -*- coding: utf-8 -*-
+# Copyright European Organization for Nuclear Research (CERN) since 2012
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -eo pipefail
+
+SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+
+
+command_exists() {
+    # check if command exists and fail otherwise
+    command -v "$1" >/dev/null 2>&1 || {
+	echo "$1 is required, but it's not installed. Abort."
+	exit 1
+    }
+}
+
+
+if [ "$#" -ne 1 ]; then
+    echo "Usage: check_rest_api_documentation.sh FILE"
+    exit 1
+fi
+
+command_exists "node"
+command_exists "npx"
+
+npx @redocly/cli lint --config "$SCRIPT_DIR/redocly.yaml" "$1"
diff --git a/tools/run_in_docker/generate_rest_api_docs.py b/tools/run_in_docker/generate_rest_api_docs.py
new file mode 100644
index 0000000000..d454daef73
--- /dev/null
+++ b/tools/run_in_docker/generate_rest_api_docs.py
@@ -0,0 +1,126 @@
+#!/usr/bin/env python3
+# Copyright European Organization for Nuclear Research (CERN) since 2012
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from apispec import APISpec  # type: ignore
+from apispec_webframeworks.flask import FlaskPlugin  # type: ignore
+from rucio.vcsversion import VERSION_INFO  # type: ignore
+from rucio.web.rest.flaskapi.v1.main import application  # type: ignore
+
+description_text = """Each resource can be accessed or modified using specially
+formed URLs and the standard HTTP methods:
+
+- GET to read
+
+- POST to create
+
+- PUT to update
+
+- DELETE to remove
+
+We require that all requests are done over SSL. The API supports JSON
+formats. Rucio uses [OAuth](http://oauth.net/) to authenticate all API
+requests. The method is to get an authentication token, and use it for the rest
+of the requests. Descriptions of the actions you may perform on each resource
+can be found below.
+
+### Date format
+
+All dates returned are in UTC and are strings in the following format
+(RFC 1123, ex RFC 822):
+
+```
+Mon, 13 May 2013 10:23:03 UTC
+```
+
+In code format, which can be used in all programming languages that support
+strftime or strptime:
+
+```
+%a, %d %b %Y %H:%M:%S UTC
+```
+
+### SSL only
+
+We require that all requests(except for the ping) are done over SSL.
+
+### Response formats
+
+The currently-available response format for all REST endpoints is the
+string-based format JavaScript Object
+Notation([JSON](http://www.json.org/)). The server answer can be one of the
+following content-type in the http Header:
+
+```text
+Content-type: application/json
+Content-Type: application/x-json-stream
+```
+
+In the last case, it corresponds to JSON objects delimited by newlines
+(streaming JSON for large answer), e.g.:
+
+```
+{ "id": 1, "foo": "bar" } { "id": 2, "foo": "baz" } ...
+```
+
+### Error handling
+
+Errors are returned using standard HTTP error code syntax.  Any additional info
+is included in the header of the return call, JSON-formatted with the
+parameters:
+
+```
+ExceptionClass ExceptionMessage
+```
+
+Where ExceptionClass refers to [`Rucio
+Exceptions`](https://github.com/rucio/rucio/blob/58efd21b5e21182df80bef3dbe8befa636e440b8/lib/rucio/common/exception.py).
+"""
+
+
+spec = APISpec(
+    title="Rucio",
+    version=VERSION_INFO["version"],
+    openapi_version="3.0.2",
+    plugins=[FlaskPlugin()],
+    info={
+        "description": description_text,
+        "license": {
+            "name": "Apache 2.0",
+            "url": "https://www.apache.org/licenses/LICENSE-2.0.html",
+        },
+        "x-logo": {
+            "url": "http://rucio.cern.ch/documentation/img/rucio_horizontaled_black_cropped.svg",  # noqa: E501
+            "backgroundColor": "#FFFFFF",
+            "altText": "Rucio logo",
+        },
+    },
+    # See: https://swagger.io/docs/specification/authentication/api-keys/
+    components={
+        "securitySchemes": {
+            "AuthToken": {
+                "type": "apiKey",
+                "in": "header",
+                "name": "X-Rucio-Auth-Token",
+                "description": "The Rucio Token obtained by one of the /auth endpoints.",  # noqa: E501
+            },
+        },
+    },
+    security=[{"AuthToken": []}],
+)
+
+with application.test_request_context():
+    for view_func in application.view_functions.values():
+        spec.path(view=view_func)
+print(spec.to_yaml())
diff --git a/tools/run_in_docker/generate_rest_api_docs.sh b/tools/run_in_docker/generate_rest_api_docs.sh
index c3e377843f..f4125f6d4d 100755
--- a/tools/run_in_docker/generate_rest_api_docs.sh
+++ b/tools/run_in_docker/generate_rest_api_docs.sh
@@ -3,4 +3,4 @@
 set -e
 
 echo "Generating the Rest Api Docs..."
-rucio/tools/generate_rest_api_doc.py > /auto_generated/rest_api_doc_spec.yaml
+/usr/bin/env python3 generate_rest_api_docs.py > /auto_generated/rest_api_doc_spec.yaml