diff --git a/recipes/recipes_emscripten/passagemath-sympow/recipe.yaml b/recipes/recipes_emscripten/passagemath-sympow/recipe.yaml
new file mode 100644
index 0000000000..1b204cd77a
--- /dev/null
+++ b/recipes/recipes_emscripten/passagemath-sympow/recipe.yaml
@@ -0,0 +1,68 @@
+context:
+  version: 10.8.7
+
+package:
+  name: passagemath-sympow
+  version: ${{ version }}
+
+source:
+- url: https://pypi.org/packages/source/p/passagemath-sympow/passagemath_sympow-${{ version }}.tar.gz
+  sha256: 15adfcdf976e172fa206a02f2e4dff948abfa891eaa11047fd4422cce87c6f5b
+
+build:
+  script: ${{ PYTHON }} -m pip install .
+  number: 0
+
+requirements:
+  build:
+  - python
+  - crossenv >=1.2
+  - cross-python_emscripten-wasm32
+  - ${{ compiler("c") }}
+  - ${{ compiler("cxx") }}
+  - pip
+  - passagemath-setup
+  - passagemath-environment
+  - cython
+  - cysignals
+  - pkgconfig
+  - passagemath-abi == ${{ version }}
+  host:
+  - python
+  - sympow
+  - passagemath-categories
+  run:
+  - python
+  - cysignals
+  - sympow
+  - passagemath-categories
+  - passagemath-linbox
+  - passagemath-modules
+
+tests:
+- script: pytester
+  files:
+    recipe:
+    - test_passagemath_sympow.py
+  requirements:
+    build:
+    - pytester
+    run:
+    - pytester-run
+    - passagemath-repl
+
+about:
+  license: GPL-2.0-or-later
+  license_file: README.rst
+  summary: 'passagemath: Special values of symmetric power elliptic curve L-functions with sympow'
+  description: |
+    Distribution of a part of the Sage library.
+    It provides an interface to sympow.
+
+extra:
+  emscripten_tests:
+    python:
+      pytest_files:
+      - test_passagemath_sympow.py
+  recipe-maintainers:
+  - mkoeppe
diff --git a/recipes/recipes_emscripten/passagemath-sympow/test_passagemath_sympow.py b/recipes/recipes_emscripten/passagemath-sympow/test_passagemath_sympow.py
new file mode 100644
index 0000000000..bac8a249be
--- /dev/null
+++ b/recipes/recipes_emscripten/passagemath-sympow/test_passagemath_sympow.py
@@ -0,0 +1,5 @@
+import pytest
+
+
+def test_import_passagemath_sympow():
+    import passagemath_sympow
diff --git a/recipes/recipes_emscripten/sympow/build.sh b/recipes/recipes_emscripten/sympow/build.sh
new file mode 100644
index 0000000000..89400a7bcb
--- /dev/null
+++ b/recipes/recipes_emscripten/sympow/build.sh
@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+set -euxo pipefail
+
+# Strip architecture-specific flags that might clash with WebAssembly
+export CFLAGS="$(echo "${CFLAGS:-}" | sed -E 's/-march=[^ ]+//g; s/-mtune=[^ ]+//g')"
+
+# Patch the Configure script to evaluate Emscripten's Wasm capabilities via Node.js
+sed -i 's|-o config/fpubits|-o config/fpubits.js|g' Configure
+sed -i 's|-o config/endiantuple|-o config/endiantuple.js|g' Configure
+
+sed -i 's|config/fpubits >|node config/fpubits.js >|g' Configure
+sed -i 's@^[ \t]*config/fpubits@node config/fpubits.js@g' Configure
+sed -i 's|\$(config/endiantuple)|\$(node config/endiantuple.js)|g' Configure
+
+PREFIX="${PREFIX}" VARPREFIX="${PREFIX}/var" ADDBINPATH=yes sh Configure
+
+# Patch the generated Makefile for cross-compilation
+sed -i 's/\$(HELP2MAN) \$(H2MFLAGS) .*/touch \$@/g' Makefile
+sed -i 's/\$(SH) armd.sh/echo "Skipping armd.sh for cross-compilation"/g' Makefile
+sed -i '/logfile/d' Makefile
+sed -i 's|datafiles/\*.txt ||g' Makefile
+
+emmake make all CC="emcc"
+emmake make install
+cp *.wasm $PREFIX/bin
\ No newline at end of file
diff --git a/recipes/recipes_emscripten/sympow/recipe.yaml b/recipes/recipes_emscripten/sympow/recipe.yaml
new file mode 100644
index 0000000000..ee52c1630d
--- /dev/null
+++ b/recipes/recipes_emscripten/sympow/recipe.yaml
@@ -0,0 +1,44 @@
+context:
+  name: sympow
+  version: 2.023.7
+
+package:
+  name: ${{ name }}
+  version: ${{ version }}
+
+source:
+  url: https://gitlab.com/rezozer/forks/sympow/-/archive/v${{ version }}/sympow-v${{ version }}.tar.gz
+  sha256: f19a2b428c573f9e4c36a97b736b562e76f4bfc354497abaeb7140632bef3400
+
+build:
+  number: 0
+
+requirements:
+  build:
+  - autoconf
+  - automake
+  - libtool
+  - make
+  - ${{ compiler("c") }}
+  - ${{ compiler('cxx') }}
+  - pkg-config
+  - autoconf-archive
+  - help2man
+  - pari
+  host:
+  - pari
+
+tests:
+  - package_contents:
+      files:
+        - bin/sympow
+
+about:
+  homepage: https://gitlab.com/rezozer/forks/sympow
+  license: LicenseRef-sympow
+  license_file: COPYING
+  summary: SYMmetric POWer elliptic curve L-functions
+
+extra:
+  recipe-maintainers:
+  - mkoeppe