diff --git a/projects/gast/Dockerfile b/projects/gast/Dockerfile
new file mode 100644
index 000000000..b169e7604
--- /dev/null
+++ b/projects/gast/Dockerfile
@@ -0,0 +1,18 @@
+#!/usr/bin/python3
+# Copyright 2022 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+FROM gcr.io/oss-fuzz-base/base-builder-python
+RUN git clone https://github.com/serge-sans-paille/gast gast
+COPY *.sh *py $SRC/
+WORKDIR $SRC/gast
diff --git a/projects/gast/build.sh b/projects/gast/build.sh
new file mode 100644
index 000000000..338e12e52
--- /dev/null
+++ b/projects/gast/build.sh
@@ -0,0 +1,22 @@
+#!/bin/bash -eu
+# Copyright 2022 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+################################################################################
+pip3 install .
+
+# Build fuzzers in $OUT.
+for fuzzer in $(find $SRC -name 'fuzz_*.py'); do
+  compile_python_fuzzer $fuzzer
+done
diff --git a/projects/gast/fuzz_roundtrip.py b/projects/gast/fuzz_roundtrip.py
new file mode 100644
index 000000000..f8afc7b29
--- /dev/null
+++ b/projects/gast/fuzz_roundtrip.py
@@ -0,0 +1,41 @@
+#!/usr/bin/python3
+# Copyright 2022 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+import sys
+import atheris
+import ast, gast
+
+def TestOneInput(data):
+  fdp = atheris.FuzzedDataProvider(data)
+  try:
+    tree = ast.parse(fdp.ConsumeUnicodeNoSurrogates(sys.maxsize))
+  except:  # catch it all
+    return
+
+  # Any valid tree should be processable
+  try:
+    gtree = gast.ast_to_gast(tree)
+    converted_ast = gast.gast_to_ast(gtree)
+  except RecursionError:
+    pass
+
+
+def main():
+  atheris.instrument_all()
+  atheris.Setup(sys.argv, TestOneInput, enable_python_coverage=True)
+  atheris.Fuzz()
+
+
+if __name__ == "__main__":
+  main()
diff --git a/projects/gast/project.yaml b/projects/gast/project.yaml
new file mode 100644
index 000000000..4c74cded3
--- /dev/null
+++ b/projects/gast/project.yaml
@@ -0,0 +1,10 @@
+fuzzing_engines:
+- libfuzzer
+homepage: https://github.com/serge-sans-paille/gast
+language: python
+main_repo: https://github.com/serge-sans-paille/gast
+sanitizers:
+- address
+- undefined
+vendor_ccs:
+- david@adalogics.com