diff --git a/net-im/Makefile b/net-im/Makefile
index 8db413a7f55e9..3e6764b4a2cf5 100644
--- a/net-im/Makefile
+++ b/net-im/Makefile
@@ -116,6 +116,7 @@
     SUBDIR += py-punjab
     SUBDIR += py-python-telegram-bot
     SUBDIR += py-slack-sdk
+    SUBDIR += py-slackeventsapi
     SUBDIR += py-slixmpp
     SUBDIR += py-telepot
     SUBDIR += py-toxcore-c
diff --git a/net-im/py-slackeventsapi/Makefile b/net-im/py-slackeventsapi/Makefile
new file mode 100644
index 0000000000000..e61b39812fd57
--- /dev/null
+++ b/net-im/py-slackeventsapi/Makefile
@@ -0,0 +1,22 @@
+PORTNAME=	slackeventsapi
+PORTVERSION=	3.0.1
+CATEGORIES=	net-im python
+MASTER_SITES=	PYPI
+PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
+
+MAINTAINER=	sunpoet@FreeBSD.org
+COMMENT=	Python Slack Events API adapter for Flask
+WWW=		https://github.com/slackapi/python-slack-events-api
+
+LICENSE=	MIT
+LICENSE_FILE=	${WRKSRC}/LICENSE
+
+RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}flask>=2:www/py-flask@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}pyee>=8:devel/py-pyee@${PY_FLAVOR}
+
+USES=		python
+USE_PYTHON=	autoplist concurrent distutils
+
+NO_ARCH=	yes
+
+.include <bsd.port.mk>
diff --git a/net-im/py-slackeventsapi/distinfo b/net-im/py-slackeventsapi/distinfo
new file mode 100644
index 0000000000000..b4287810154ca
--- /dev/null
+++ b/net-im/py-slackeventsapi/distinfo
@@ -0,0 +1,3 @@
+TIMESTAMP = 1708448844
+SHA256 (slackeventsapi-3.0.1.tar.gz) = 24f8e843a60118b08368161105bae8a998801202f85782239d48f8635e2ead58
+SIZE (slackeventsapi-3.0.1.tar.gz) = 7309
diff --git a/net-im/py-slackeventsapi/files/patch-setup.py b/net-im/py-slackeventsapi/files/patch-setup.py
new file mode 100644
index 0000000000000..0c965be1a65a4
--- /dev/null
+++ b/net-im/py-slackeventsapi/files/patch-setup.py
@@ -0,0 +1,11 @@
+--- setup.py.orig	2021-11-30 08:16:52 UTC
++++ setup.py
+@@ -34,7 +34,7 @@ setup(name='slackeventsapi',
+       long_description_content_type='text/x-rst',
+       long_description=long_description,
+       install_requires=[
+-          'flask>=2,<3',
++          'flask>=2',
+           'pyee>=8',
+       ],
+       classifiers=[
diff --git a/net-im/py-slackeventsapi/pkg-descr b/net-im/py-slackeventsapi/pkg-descr
new file mode 100644
index 0000000000000..5120bc58d9892
--- /dev/null
+++ b/net-im/py-slackeventsapi/pkg-descr
@@ -0,0 +1,7 @@
+The Slack Events Adapter is a Python-based solution to receive and parse events
+from Slack's Events API. This library uses an event emitter framework to allow
+you to easily process Slack events by simply attaching functions to event
+listeners.
+
+This adapter enhances and simplifies Slack's Events API by incorporating useful
+best practices, patterns, and opportunities to abstract out common tasks.