diff --git a/MOVED b/MOVED
index 341835875d1ad..e157724a2d1d1 100644
--- a/MOVED
+++ b/MOVED
@@ -3198,3 +3198,4 @@ multimedia/flvtool++||2024-04-21|Has expired: Abandonware, consider using multim
 www/mod_tidy||2024-04-24|Has expired: Last upstream release was in 2005
 net-p2p/go-prysm||2024-04-24|Has expired: Broken for more than 6 months
 x11-toolkits/p5-Gtk2-Ex-Dialogs||2024-04-24|Has expired: No longer works with modern Gtk2
+math/mathlibtools||2024-04-28|Project is obsolete and archived on GitHub since Aug 2023, not compatible with math/lean4
diff --git a/math/Makefile b/math/Makefile
index 2c05d4b0585c6..347e9eadf979c 100644
--- a/math/Makefile
+++ b/math/Makefile
@@ -488,7 +488,6 @@
     SUBDIR += math77
     SUBDIR += mathgl
     SUBDIR += mathicsscript
-    SUBDIR += mathlibtools
     SUBDIR += mathmod
     SUBDIR += mathomatic
     SUBDIR += mathpresso
diff --git a/math/mathlibtools/Makefile b/math/mathlibtools/Makefile
deleted file mode 100644
index d820bd67867bd..0000000000000
--- a/math/mathlibtools/Makefile
+++ /dev/null
@@ -1,31 +0,0 @@
-PORTNAME=	mathlibtools
-DISTVERSION=	1.2.0
-PORTREVISION=	1
-CATEGORIES=	math python
-MASTER_SITES=	PYPI
-
-MAINTAINER=	yuri@FreeBSD.org
-COMMENT=	Lean prover mathlib supporting tools
-WWW=		https://github.com/leanprover-community/mathlib-tools
-
-LICENSE=	APACHE20
-LICENSE_FILE=	${WRKSRC}/LICENSE
-
-RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}atomicwrites>0:devel/py-atomicwrites@${PY_FLAVOR} \
-		${PYTHON_PKGNAMEPREFIX}certifi>0:security/py-certifi@${PY_FLAVOR} \
-		${PYTHON_PKGNAMEPREFIX}click>0:devel/py-click@${PY_FLAVOR} \
-		${PYTHON_PKGNAMEPREFIX}gitpython>=2.1.11:devel/py-gitpython@${PY_FLAVOR} \
-		${PYTHON_PKGNAMEPREFIX}networkx>0:math/py-networkx@${PY_FLAVOR} \
-		${PYTHON_PKGNAMEPREFIX}pydot>0:graphics/py-pydot@${PY_FLAVOR} \
-		${PYTHON_PKGNAMEPREFIX}PyGithub>0:devel/py-PyGithub@${PY_FLAVOR} \
-		${PYTHON_PKGNAMEPREFIX}pyaml>=3.13:textproc/py-pyaml@${PY_FLAVOR} \
-		${PYTHON_PKGNAMEPREFIX}requests>0:www/py-requests@${PY_FLAVOR} \
-		${PYTHON_PKGNAMEPREFIX}toml>=0.10.0:textproc/py-toml@${PY_FLAVOR} \
-		${PYTHON_PKGNAMEPREFIX}tqdm>0:misc/py-tqdm@${PY_FLAVOR}
-
-USES=		python
-USE_PYTHON=	distutils noflavors autoplist
-
-NO_ARCH=	yes
-
-.include <bsd.port.mk>
diff --git a/math/mathlibtools/distinfo b/math/mathlibtools/distinfo
deleted file mode 100644
index 7bf57d9c0379e..0000000000000
--- a/math/mathlibtools/distinfo
+++ /dev/null
@@ -1,3 +0,0 @@
-TIMESTAMP = 1667631450
-SHA256 (mathlibtools-1.2.0.tar.gz) = 8c85a23a67b50333797d4682b91ad9fbd204a4e2edaf5e3d516b37598bcfc918
-SIZE (mathlibtools-1.2.0.tar.gz) = 27987
diff --git a/math/mathlibtools/pkg-descr b/math/mathlibtools/pkg-descr
deleted file mode 100644
index 019f11aadee8b..0000000000000
--- a/math/mathlibtools/pkg-descr
+++ /dev/null
@@ -1,3 +0,0 @@
-mathlibtools contains leanproject, a supporting tool for Lean mathlib.
-
-Lean is installed by the port math/lean.