diff --git a/contrib/source-control-tools/automated-commits.sh b/contrib/source-control-tools/automated-commits.sh
new file mode 100755
--- /dev/null
+++ b/contrib/source-control-tools/automated-commits.sh
@@ -0,0 +1,88 @@
+#!/usr/bin/env bash
+
+# Note: Any bot running this script must have the appropriate permissions to
+# push commits upstream. When running locally, this script will git push in a
+# dry run by default.
+
+export LC_ALL=C.UTF-8
+
+set -euxo pipefail
+
+: "${COMMIT_TYPE:=}"
+if [ -z "${COMMIT_TYPE}" ]; then
+  echo "Error: Environment variable COMMIT_TYPE must be set"
+  exit 1
+fi
+
+echo "Building automated commit '${COMMIT_TYPE}'..."
+
+BOT_PREFIX="[Automated]"
+TOPLEVEL=$(git rev-parse --show-toplevel)
+
+CHAINPARAMS_SCRIPTS_DIR="${TOPLEVEL}"/contrib/devtools/chainparams
+TEAMCITY_SCRIPTS_DIR="${TOPLEVEL}"/contrib/teamcity
+
+# Make sure tree is clean
+git checkout master
+git reset --hard origin/master
+
+case "${COMMIT_TYPE}" in
+  update-chainparams)
+    # Assumes bitcoind instances are already running on mainnet and testnet
+    pushd "${CHAINPARAMS_SCRIPTS_DIR}"
+    CHAINPARAMS_MAINNET_TXT="chainparams_main.txt"
+    ./make_chainparams.py > "${CHAINPARAMS_MAINNET_TXT}"
+    git add "${CHAINPARAMS_MAINNET_TXT}"
+
+    CHAINPARAMS_TESTNET_TXT="chainparams_test.txt"
+    ./make_chainparams.py -a 127.0.0.1:18332 > "${CHAINPARAMS_TESTNET_TXT}"
+    git add "${CHAINPARAMS_TESTNET_TXT}"
+
+    CHAINPARAMS_CONSTANTS="${TOPLEVEL}"/src/chainparamsconstants.h
+    ./generate_chainparams_constants.py . > "${CHAINPARAMS_CONSTANTS}"
+    git add "${CHAINPARAMS_CONSTANTS}"
+    popd
+
+    # Sanity check that the new chainparams build
+    ABC_BUILD_NAME=build-werror "${TEAMCITY_SCRIPTS_DIR}"/build-configurations.sh
+
+    git commit -m "${BOT_PREFIX} Update chainparams"
+    ;;
+
+  *)
+    echo "Error: Invalid commit name '${COMMIT_TYPE}'"
+    exit 2
+    ;;
+esac
+
+echo "Sanity checks..."
+
+LINT_OUTPUT=$(arc lint --never-apply-patches)
+LINT_EXIT_CODE=$?
+# If there is more than one line of output, then lint advice lines are likely present.
+# We treat these as errors because code generators should always produce lint-free code.
+LINT_NUM_LINES=$(echo ${LINT_OUTPUT} | wc -l)
+if [ "${LINT_EXIT_CODE}" -ne 0 ] || [ "${LINT_NUM_LINES}" -gt 1 ]; then
+  echo "Error: The linter found issues with the automated commit. Correct the issue in the code generator and try again."
+  exit 3
+fi
+
+echo "Pushing automated commit '${COMMIT_TYPE}'..."
+
+GIT_PUSH_OPTIONS=("--verbose")
+
+case ${DRY_RUN:=yes} in
+  no|NO|false|FALSE)
+    # Do nothing
+    ;;
+  *)
+    GIT_PUSH_OPTIONS+=("--dry-run")
+    ;;
+esac
+
+# Make sure master is up-to-date. If there is a merge conflict, this script
+# will not attempt to resolve it and simply fail.
+git fetch origin master
+git rebase origin/master
+
+git push "${GIT_PUSH_OPTIONS[@]}" origin master