diff --git a/contrib/seeds/check-seeds.sh b/contrib/seeds/check-seeds.sh
--- a/contrib/seeds/check-seeds.sh
+++ b/contrib/seeds/check-seeds.sh
@@ -7,10 +7,14 @@
 MAINNET="main"
 TESTNET="test"
 
+NETWORK_ABC="abc"
+NETWORK_BCHN="bchn"
+
 help_message() {
   set +x
   echo "Test that at least some threshold of seed nodes can be connected to."
-  echo "Usage: $0 <chain> <threshold>"
+  echo "Usage: $0 <network> <chain> <threshold>"
+  echo "    Where <network> is either '${NETWORK_ABC}' or '${NETWORK_BCHN}'"
   echo "    Where <chain> is either '${MAINNET}' or '${TESTNET}'"
   echo "    Where <threshold> is an integer (0 - 100) representing the percentage of seeds that you expect to be online."
   set -x
@@ -22,7 +26,7 @@
       help_message
       exit 0
       ;;
-    "${MAINNET}"|"${TESTNET}")
+    "${NETWORK_ABC}"|"${NETWORK_BCHN}")
       # Fallthrough to get caught by the following appropriate check for the
       # number of arguments, as this argument appears well formed.
       ;;
@@ -33,8 +37,8 @@
   esac
 fi
 
-if [ "$#" -ne 2 ]; then
-  echo "Error: Expecting 2 arguments, got $#"
+if [ "$#" -ne 3 ]; then
+  echo "Error: Expecting 3 arguments, got $#"
   help_message
   exit 2
 fi
@@ -42,8 +46,9 @@
 TOPLEVEL=$(git rev-parse --show-toplevel)
 SEEDS_DIR="${TOPLEVEL}"/contrib/seeds
 
-CHAIN="$1"
-PERCENT_THRESHOLD="$2"
+NETWORK="$1"
+CHAIN="$2"
+PERCENT_THRESHOLD="$3"
 if [ "${CHAIN}" = "${MAINNET}" ]; then
   TEST_SEEDS_ARGS=""
 elif [ "${CHAIN}" = "${TESTNET}" ]; then
@@ -53,12 +58,12 @@
   exit 1
 fi
 
-SEED_NODES="${SEEDS_DIR}/nodes_${CHAIN}.txt"
+SEED_NODES="${SEEDS_DIR}/${NETWORK}/nodes_${CHAIN}.txt"
 TOTAL=$(wc -l < "${SEED_NODES}")
 NUM=$("${SEEDS_DIR}"/test-seeds.sh ${TEST_SEEDS_ARGS} < "${SEED_NODES}" | wc -l)
 PERCENT_NODES_UP=$((NUM * 100 / TOTAL))
-echo "${PERCENT_NODES_UP}% of ${CHAIN}net seeds appear to be online."
+echo "${PERCENT_NODES_UP}% of ${NETWORK} ${CHAIN}net seeds appear to be online."
 if [ "${PERCENT_NODES_UP}" -lt "${PERCENT_THRESHOLD}" ]; then
-  echo "Error: The number of online ${CHAIN}net seed nodes is below the expected threshold of ${PERCENT_THRESHOLD}%"
+  echo "Error: The number of online ${NETWORK} ${CHAIN}net seed nodes is below the expected threshold of ${PERCENT_THRESHOLD}%"
   exit 10
 fi
diff --git a/contrib/source-control-tools/patch-recipes/update-seeds.sh b/contrib/source-control-tools/patch-recipes/update-seeds.sh
--- a/contrib/source-control-tools/patch-recipes/update-seeds.sh
+++ b/contrib/source-control-tools/patch-recipes/update-seeds.sh
@@ -4,27 +4,53 @@
 
 set -euxo pipefail
 
-: "${SEEDS_MAIN:=seeds_main.txt}"
-: "${SEEDS_TEST:=seeds_test.txt}"
+# Assumes seeder instances are already running on mainnet and testnet
+: "${ABC_SEEDS_MAIN:=seeds_main.txt}"
+: "${ABC_SEEDS_TEST:=seeds_test.txt}"
+: "${BCHN_SEEDS_MAIN:=seeds_main.txt}"
+: "${BCHN_SEEDS_TEST:=seeds_test.txt}"
+
+# Args should be the network(s) to update. Defaults to all supported networks.
+NETWORKS=("$@")
+if [ "$#" == 0 ]; then
+  NETWORKS=("abc" "bchn")
+fi
+
 TOPLEVEL=$(git rev-parse --show-toplevel)
 SEEDS_DIR="${TOPLEVEL}"/contrib/seeds
 
-# Assumes seeder instances are already running on mainnet and testnet
-pushd "${SEEDS_DIR}"
-./makeseeds.py < "${SEEDS_MAIN}" > nodes_main.txt
-git add nodes_main.txt
+generate_seeds() {
+  NETWORK="$1"
+  SEEDS_MAIN="$2"
+  SEEDS_TEST="$3"
 
-./makeseeds.py < "${SEEDS_TEST}" > nodes_test.txt
-git add nodes_test.txt
+  ./makeseeds.py < "${SEEDS_MAIN}" > "${NETWORK}"/nodes_main.txt
+  git add "${NETWORK}"/nodes_main.txt
 
-SEEDS_HEADER="${TOPLEVEL}"/src/chainparamsseeds.h
-./generate-seeds.py . > "${SEEDS_HEADER}"
-git add "${SEEDS_HEADER}"
+  ./makeseeds.py < "${SEEDS_TEST}" > "${NETWORK}"/nodes_test.txt
+  git add "${NETWORK}"/nodes_test.txt
+
+  SEEDS_HEADER="${TOPLEVEL}"/src/networks/"${NETWORK}"/chainparamsseeds.cpp
+  ./generate-seeds.py "${NETWORK}" > "${SEEDS_HEADER}"
+  git add "${SEEDS_HEADER}"
+}
+
+pushd "${SEEDS_DIR}"
+if [[ " ${NETWORKS[*]} " =~ " abc " ]]; then
+  generate_seeds abc "${ABC_SEEDS_MAIN}" "${ABC_SEEDS_TEST}"
+fi
+if [[ " ${NETWORKS[*]} " =~ " bchn " ]]; then
+  generate_seeds bchn "${BCHN_SEEDS_MAIN}" "${BCHN_SEEDS_TEST}"
+fi
 popd
 
 # Check that seeds have good connectivity
-"${TOPLEVEL}"/contrib/devtools/build_cmake.sh
-RPC_PORT=18832 "${SEEDS_DIR}"/check-seeds.sh main 80
-RPC_PORT=18833 "${SEEDS_DIR}"/check-seeds.sh test 70
+"${TOPLEVEL}"/contrib/devtools/build_cmake.sh bitcoind bitcoin-cli
+RPC_PORT=18832 "${SEEDS_DIR}"/check-seeds.sh abc main 80
+RPC_PORT=18833 "${SEEDS_DIR}"/check-seeds.sh abc test 70
+
+CMAKE_FLAGS="-DNETWORK_COMPATIBILITY=BCHN" "${TOPLEVEL}"/contrib/devtools/build_cmake.sh bitcoind bitcoin-cli
+RPC_PORT=18832 "${SEEDS_DIR}"/check-seeds.sh bchn main 80
+RPC_PORT=18833 "${SEEDS_DIR}"/check-seeds.sh bchn test 70
 
 git commit -m "[Automated] Update seeds"
diff --git a/contrib/teamcity/build-configurations.yml b/contrib/teamcity/build-configurations.yml
--- a/contrib/teamcity/build-configurations.yml
+++ b/contrib/teamcity/build-configurations.yml
@@ -415,8 +415,8 @@
       # Run on different ports to avoid a race where the rpc port used in the first run
       # may not be closed in time for the second to start.
       SEEDS_DIR="${TOPLEVEL}"/contrib/seeds
-      RPC_PORT=18832 "${SEEDS_DIR}"/check-seeds.sh main 80
-      RPC_PORT=18833 "${SEEDS_DIR}"/check-seeds.sh test 70
+      RPC_PORT=18832 "${SEEDS_DIR}"/check-seeds.sh abc main 80
+      RPC_PORT=18833 "${SEEDS_DIR}"/check-seeds.sh abc test 70
     timeout: 600
 
   check-source-control-tools: