diff --git a/app-emacs/acp/Manifest b/app-emacs/acp/Manifest
new file mode 100644
index 0000000000000..5bea60f0d8059
--- /dev/null
+++ b/app-emacs/acp/Manifest
@@ -0,0 +1 @@
+DIST acp-0.12.2.gh.tar.gz 5354726 BLAKE2B f323c6e0867fe104b0f3c509d0cef29acb8852cc59039ea433f3c2f7d8fa09df131079d1c10d9ecb01d359cd5333cc469853ce0d3136c744d3c34491871a7023 SHA512 d3d40deeb84cb4d049ef54265a6891ccd76f524d536008c781a1620ab532c5264251d5bfd48d7bcbbbb7ef2375574d2bc27f02ea27862607967eb269f71a248d
diff --git a/app-emacs/acp/acp-0.12.2.ebuild b/app-emacs/acp/acp-0.12.2.ebuild
new file mode 100644
index 0000000000000..7d1c20bf35fe2
--- /dev/null
+++ b/app-emacs/acp/acp-0.12.2.ebuild
@@ -0,0 +1,29 @@
+# Copyright 1999-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=9
+
+NEED_EMACS="28.1"
+
+inherit elisp
+
+DESCRIPTION="Agent Client Protocol implementation for GNU Emacs"
+HOMEPAGE="https://github.com/xenodium/acp.el/"
+
+if [[ "${PV}" == *9999* ]] ; then
+	inherit git-r3
+	EGIT_REPO_URI="https://github.com/xenodium/${PN}.el"
+else
+	SRC_URI="https://github.com/xenodium/${PN}.el/archive/refs/tags/v${PV}.tar.gz
+		-> ${P}.gh.tar.gz"
+	S="${WORKDIR}/${PN}.el-${PV}"
+	KEYWORDS="~amd64 ~x86"
+fi
+
+LICENSE="GPL-3+"
+SLOT="0"
+
+DOCS=( README.org )
+SITEFILE="50${PN}-gentoo.el"
+
+elisp-enable-tests ert ./tests/
diff --git a/app-emacs/acp/acp-9999.ebuild b/app-emacs/acp/acp-9999.ebuild
new file mode 100644
index 0000000000000..7d1c20bf35fe2
--- /dev/null
+++ b/app-emacs/acp/acp-9999.ebuild
@@ -0,0 +1,29 @@
+# Copyright 1999-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=9
+
+NEED_EMACS="28.1"
+
+inherit elisp
+
+DESCRIPTION="Agent Client Protocol implementation for GNU Emacs"
+HOMEPAGE="https://github.com/xenodium/acp.el/"
+
+if [[ "${PV}" == *9999* ]] ; then
+	inherit git-r3
+	EGIT_REPO_URI="https://github.com/xenodium/${PN}.el"
+else
+	SRC_URI="https://github.com/xenodium/${PN}.el/archive/refs/tags/v${PV}.tar.gz
+		-> ${P}.gh.tar.gz"
+	S="${WORKDIR}/${PN}.el-${PV}"
+	KEYWORDS="~amd64 ~x86"
+fi
+
+LICENSE="GPL-3+"
+SLOT="0"
+
+DOCS=( README.org )
+SITEFILE="50${PN}-gentoo.el"
+
+elisp-enable-tests ert ./tests/
diff --git a/app-emacs/acp/metadata.xml b/app-emacs/acp/metadata.xml
new file mode 100644
index 0000000000000..1a93326bca87f
--- /dev/null
+++ b/app-emacs/acp/metadata.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+
+<pkgmetadata>
+  <maintainer type="project">
+    <email>gnu-emacs@gentoo.org</email>
+    <name>Gentoo GNU Emacs project</name>
+  </maintainer>
+  <stabilize-allarches/>
+  <upstream>
+    <bugs-to>https://github.com/xenodium/acp.el/issues/</bugs-to>
+    <remote-id type="github">xenodium/acp.el</remote-id>
+  </upstream>
+</pkgmetadata>