diff --git a/devel/Makefile b/devel/Makefile
index 323d58504c87..1991cf393877 100644
--- a/devel/Makefile
+++ b/devel/Makefile
@@ -4098,6 +4098,7 @@
     SUBDIR += py-arpeggio
     SUBDIR += py-arrow
     SUBDIR += py-asciimatics
+    SUBDIR += py-asgi-lifespan
     SUBDIR += py-asn1crypto
     SUBDIR += py-aspy.yaml
     SUBDIR += py-astor
diff --git a/devel/py-asgi-lifespan/Makefile b/devel/py-asgi-lifespan/Makefile
new file mode 100644
index 000000000000..522000a4cc0b
--- /dev/null
+++ b/devel/py-asgi-lifespan/Makefile
@@ -0,0 +1,34 @@
+PORTNAME=	asgi-lifespan
+DISTVERSION=	1.0.1
+CATEGORIES=	devel python
+MASTER_SITES=	CHEESESHOP
+PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
+
+MAINTAINER=	meka@tilda.center
+COMMENT=	Programmatic startup/shutdown of ASGI apps
+
+LICENSE=	PSFL
+
+RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}sniffio>=0:devel/py-sniffio@${PY_FLAVOR}
+TEST_DEPENDS=	${PYTHON_PKGNAMEPREFIX}pytest>=0:devel/py-pytest@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}trio>=0:net/py-trio@${PY_FLAVOR}
+
+USES=		python:3.6+
+USE_PYTHON=	autoplist concurrent distutils
+USE_GITHUB=	yes
+GH_ACCOUNT=	florimondmanca
+
+TEST_ENV=	PYTHONPATH=${WRKSRC}/src
+
+NO_ARCH=	yes
+
+do-test:
+	cd ${WRKSRC} && ${SETENV} ${TEST_ENV} ${PYTHON_CMD} -m pytest -v -rs -o addopts=
+
+.include <bsd.port.pre.mk>
+
+.if ${PYTHON_REL} < 30700
+RUN_DEPENDS+=	${PYTHON_PKGNAMEPREFIX}async-exit-stack>=0:devel/py-async-exit-stack@${PY_FLAVOR}
+.endif
+
+.include <bsd.port.post.mk>
diff --git a/devel/py-asgi-lifespan/distinfo b/devel/py-asgi-lifespan/distinfo
new file mode 100644
index 000000000000..9a8cc9db419d
--- /dev/null
+++ b/devel/py-asgi-lifespan/distinfo
@@ -0,0 +1,3 @@
+TIMESTAMP = 1626961600
+SHA256 (florimondmanca-asgi-lifespan-1.0.1_GH0.tar.gz) = 5da90d92a6880f6490a060fdbb7d08f46797270bf62379d40f18555878d86fff
+SIZE (florimondmanca-asgi-lifespan-1.0.1_GH0.tar.gz) = 10745
diff --git a/devel/py-asgi-lifespan/pkg-descr b/devel/py-asgi-lifespan/pkg-descr
new file mode 100644
index 000000000000..063cb377b875
--- /dev/null
+++ b/devel/py-asgi-lifespan/pkg-descr
@@ -0,0 +1,6 @@
+Programmatically send startup/shutdown lifespan events into ASGI applications.
+When used in combination with an ASGI-capable HTTP client such as HTTPX, this
+allows mocking or testing ASGI applications without having to spin up an ASGI
+server.
+
+WWW: https://github.com/florimondmanca/asgi-lifespan