diff --git a/app/data/compose/docker-compose-watcher-mobymask-v2.yml b/app/data/compose/docker-compose-watcher-mobymask-v2.yml
index fa68d017..58015fe1 100644
--- a/app/data/compose/docker-compose-watcher-mobymask-v2.yml
+++ b/app/data/compose/docker-compose-watcher-mobymask-v2.yml
@@ -34,6 +34,7 @@ services:
       CERC_SCRIPT_DEBUG: ${CERC_SCRIPT_DEBUG}
       ENV: "PROD"
       CERC_L2_GETH_RPC: ${CERC_L2_GETH_RPC}
+      CERC_L1_ACCOUNTS_CSV_URL: ${CERC_L1_ACCOUNTS_CSV_URL}
       CERC_PRIVATE_KEY_DEPLOYER: ${CERC_PRIVATE_KEY_DEPLOYER}
       CERC_MOBYMASK_APP_BASE_URI: ${CERC_MOBYMASK_APP_BASE_URI}
       CERC_DEPLOYED_CONTRACT: ${CERC_DEPLOYED_CONTRACT}
@@ -50,7 +51,6 @@ services:
       - ../config/watcher-mobymask-v2/secrets-template.json:/app/packages/server/secrets-template.json
       - ../config/watcher-mobymask-v2/deploy-and-generate-invite.sh:/app/packages/server/deploy-and-generate-invite.sh
       - mobymask_deployment:/app/packages/server
-      - fixturenet_geth_accounts:/geth-accounts:ro
     extra_hosts:
       - "host.docker.internal:host-gateway"
 
@@ -83,6 +83,7 @@ services:
     environment:
       CERC_SCRIPT_DEBUG: ${CERC_SCRIPT_DEBUG}
       CERC_L2_GETH_RPC: ${CERC_L2_GETH_RPC}
+      CERC_L1_ACCOUNTS_CSV_URL: ${CERC_L1_ACCOUNTS_CSV_URL}
       CERC_PRIVATE_KEY_PEER: ${CERC_PRIVATE_KEY_PEER}
       CERC_RELAY_PEERS: ${CERC_RELAY_PEERS}
       CERC_RELAY_ANNOUNCE_DOMAIN: ${CERC_RELAY_ANNOUNCE_DOMAIN}
@@ -94,7 +95,6 @@ services:
       - ../config/watcher-mobymask-v2/start-server.sh:/app/start-server.sh
       - peers_ids:/app/peers
       - mobymask_deployment:/server
-      - fixturenet_geth_accounts:/geth-accounts:ro
     # Expose GQL, metrics and relay node ports
     ports:
       - "0.0.0.0:3001:3001"
@@ -135,4 +135,3 @@ volumes:
   mobymask_watcher_db_data:
   peers_ids:
   mobymask_deployment:
-  fixturenet_geth_accounts:
diff --git a/app/data/config/watcher-mobymask-v2/deploy-and-generate-invite.sh b/app/data/config/watcher-mobymask-v2/deploy-and-generate-invite.sh
index 2e6ffcf7..30dab354 100755
--- a/app/data/config/watcher-mobymask-v2/deploy-and-generate-invite.sh
+++ b/app/data/config/watcher-mobymask-v2/deploy-and-generate-invite.sh
@@ -5,19 +5,25 @@ if [ -n "$CERC_SCRIPT_DEBUG" ]; then
 fi
 
 CERC_L2_GETH_RPC="${CERC_L2_GETH_RPC:-${DEFAULT_CERC_L2_GETH_RPC}}"
-CERC_PRIVATE_KEY_DEPLOYER="${CERC_PRIVATE_KEY_DEPLOYER:-${DEFAULT_CERC_PRIVATE_KEY_DEPLOYER}}"
+CERC_L1_ACCOUNTS_CSV_URL="${CERC_L1_ACCOUNTS_CSV_URL:-${DEFAULT_CERC_L1_ACCOUNTS_CSV_URL}}"
 
 CERC_MOBYMASK_APP_BASE_URI="${CERC_MOBYMASK_APP_BASE_URI:-${DEFAULT_CERC_MOBYMASK_APP_BASE_URI}}"
 CERC_DEPLOYED_CONTRACT="${CERC_DEPLOYED_CONTRACT:-${DEFAULT_CERC_DEPLOYED_CONTRACT}}"
 
 echo "Using L2 RPC endpoint ${CERC_L2_GETH_RPC}"
 
-if [ -f /geth-accounts/accounts.csv ]; then
-  echo "Using L1 private key from the mounted volume"
-  # Read the private key of L1 account to deploy contract
+if [ -n "$CERC_L1_ACCOUNTS_CSV_URL" ] && \
+  l1_accounts_response=$(curl -L --write-out '%{http_code}' --silent --output /dev/null "$CERC_L1_ACCOUNTS_CSV_URL") && \
+  [ "$l1_accounts_response" -eq 200 ];
+then
+  echo "Fetching L1 account credentials using provided URL"
+  mkdir -p /geth-accounts
+  wget -O /geth-accounts/accounts.csv "$CERC_L1_ACCOUNTS_CSV_URL"
+
+  # Read the private key of an L1 account to deploy contract
   CERC_PRIVATE_KEY_DEPLOYER=$(head -n 1 /geth-accounts/accounts.csv | cut -d ',' -f 3)
 else
-  echo "Using CERC_PRIVATE_KEY_DEPLOYER from env"
+  echo "Couldn't fetch L1 account credentials, using CERC_PRIVATE_KEY_DEPLOYER from env"
 fi
 
 # Set the private key
diff --git a/app/data/config/watcher-mobymask-v2/optimism-params.env b/app/data/config/watcher-mobymask-v2/optimism-params.env
index 6bdc7ea3..67eb3314 100644
--- a/app/data/config/watcher-mobymask-v2/optimism-params.env
+++ b/app/data/config/watcher-mobymask-v2/optimism-params.env
@@ -8,6 +8,5 @@ DEFAULT_CERC_L2_GETH_PORT=8545
 DEFAULT_CERC_L2_NODE_HOST="op-node"
 DEFAULT_CERC_L2_NODE_PORT=8547
 
-# Credentials for accounts to perform txs on L2
-DEFAULT_CERC_PRIVATE_KEY_DEPLOYER=
-DEFAULT_CERC_PRIVATE_KEY_PEER=
+# URL to get CSV with credentials for accounts on L1 to perform txs on L2
+DEFAULT_CERC_L1_ACCOUNTS_CSV_URL="http://fixturenet-eth-bootnode-geth:9898/accounts.csv"
diff --git a/app/data/config/watcher-mobymask-v2/start-server.sh b/app/data/config/watcher-mobymask-v2/start-server.sh
index 02184842..b46a7c14 100755
--- a/app/data/config/watcher-mobymask-v2/start-server.sh
+++ b/app/data/config/watcher-mobymask-v2/start-server.sh
@@ -5,7 +5,7 @@ if [ -n "$CERC_SCRIPT_DEBUG" ]; then
 fi
 
 CERC_L2_GETH_RPC="${CERC_L2_GETH_RPC:-${DEFAULT_CERC_L2_GETH_RPC}}"
-CERC_PRIVATE_KEY_PEER="${CERC_PRIVATE_KEY_PEER:-${DEFAULT_CERC_PRIVATE_KEY_PEER}}"
+CERC_L1_ACCOUNTS_CSV_URL="${CERC_L1_ACCOUNTS_CSV_URL:-${DEFAULT_CERC_L1_ACCOUNTS_CSV_URL}}"
 
 CERC_RELAY_PEERS="${CERC_RELAY_PEERS:-${DEFAULT_CERC_RELAY_PEERS}}"
 CERC_RELAY_ANNOUNCE_DOMAIN="${CERC_RELAY_ANNOUNCE_DOMAIN:-${DEFAULT_CERC_RELAY_ANNOUNCE_DOMAIN}}"
@@ -24,12 +24,18 @@ else
   CONTRACT_ADDRESS=$(jq -r '.address' /server/config.json | tr -d '"')
 fi
 
-if [ -f /geth-accounts/accounts.csv ]; then
-  echo "Using L1 private key from the mounted volume"
-  # Read the private key of L1 account for sending txs from peer
+if [ -n "$CERC_L1_ACCOUNTS_CSV_URL" ] && \
+  l1_accounts_response=$(curl -L --write-out '%{http_code}' --silent --output /dev/null "$CERC_L1_ACCOUNTS_CSV_URL") && \
+  [ "$l1_accounts_response" -eq 200 ];
+then
+  echo "Fetching L1 account credentials using provided URL"
+  mkdir -p /geth-accounts
+  wget -O /geth-accounts/accounts.csv "$CERC_L1_ACCOUNTS_CSV_URL"
+
+  # Read the private key of an L1 account for sending txs from peer
   CERC_PRIVATE_KEY_PEER=$(awk -F, 'NR==2{print $NF}' /geth-accounts/accounts.csv)
 else
-  echo "Using CERC_PRIVATE_KEY_PEER from env"
+  echo "Couldn't fetch L1 account credentials, using CERC_PRIVATE_KEY_PEER from env"
 fi
 
 # Read in the config template TOML file and modify it
diff --git a/app/data/container-build/cerc-mobymask/Dockerfile b/app/data/container-build/cerc-mobymask/Dockerfile
index caa3e6b5..3bcebced 100644
--- a/app/data/container-build/cerc-mobymask/Dockerfile
+++ b/app/data/container-build/cerc-mobymask/Dockerfile
@@ -1,6 +1,6 @@
 FROM node:16.17.1-alpine3.16
 
-RUN apk --update --no-cache add python3 alpine-sdk jq bash
+RUN apk --update --no-cache add python3 alpine-sdk jq bash curl wget
 
 WORKDIR /app
 
diff --git a/app/data/container-build/cerc-watcher-mobymask-v2/Dockerfile b/app/data/container-build/cerc-watcher-mobymask-v2/Dockerfile
index 9d1a70b7..c572658d 100644
--- a/app/data/container-build/cerc-watcher-mobymask-v2/Dockerfile
+++ b/app/data/container-build/cerc-watcher-mobymask-v2/Dockerfile
@@ -1,7 +1,7 @@
 FROM ubuntu:22.04
 
 RUN apt-get update \
-  && apt-get install -y curl gnupg build-essential \
+  && apt-get install -y curl wget gnupg build-essential \
   && curl --silent --location https://deb.nodesource.com/setup_18.x | bash - \
   && apt-get update \
   && apt-get install -y nodejs git busybox jq \
diff --git a/app/data/stacks/fixturenet-eth/README.md b/app/data/stacks/fixturenet-eth/README.md
index 86404af0..c54237aa 100644
--- a/app/data/stacks/fixturenet-eth/README.md
+++ b/app/data/stacks/fixturenet-eth/README.md
@@ -117,8 +117,8 @@ Clear volumes created by this stack:
 
 ```bash
 # List all relevant volumes
-$ docker volume ls -q --filter "name=.*fixturenet_eth_bootnode_geth_data|.*fixturenet_eth_bootnode_lighthouse_data|.*fixturenet_eth_geth_1_data|.*fixturenet_eth_geth_2_data|.*fixturenet_eth_lighthouse_1_data|.*fixturenet_eth_lighthouse_2_data|.*fixturenet_geth_accounts"
+$ docker volume ls -q --filter "name=.*fixturenet_eth_bootnode_geth_data|.*fixturenet_eth_bootnode_lighthouse_data|.*fixturenet_eth_geth_1_data|.*fixturenet_eth_geth_2_data|.*fixturenet_eth_lighthouse_1_data|.*fixturenet_eth_lighthouse_2_data"
 
 # Remove all the listed volumes
-$ docker volume rm $(docker volume ls -q --filter "name=.*fixturenet_eth_bootnode_geth_data|.*fixturenet_eth_bootnode_lighthouse_data|.*fixturenet_eth_geth_1_data|.*fixturenet_eth_geth_2_data|.*fixturenet_eth_lighthouse_1_data|.*fixturenet_eth_lighthouse_2_data|.*fixturenet_geth_accounts")
+$ docker volume rm $(docker volume ls -q --filter "name=.*fixturenet_eth_bootnode_geth_data|.*fixturenet_eth_bootnode_lighthouse_data|.*fixturenet_eth_geth_1_data|.*fixturenet_eth_geth_2_data|.*fixturenet_eth_lighthouse_1_data|.*fixturenet_eth_lighthouse_2_data")
 ```
diff --git a/app/data/stacks/mobymask-v2/README.md b/app/data/stacks/mobymask-v2/README.md
index fb4aebcd..25b8f3ea 100644
--- a/app/data/stacks/mobymask-v2/README.md
+++ b/app/data/stacks/mobymask-v2/README.md
@@ -114,8 +114,8 @@ Clear volumes created by this stack:
 
 ```bash
 # List all relevant volumes
-docker volume ls -q --filter "name=.*mobymask_watcher_db_data|.*peers_ids|.*mobymask_deployment|.*fixturenet_geth_accounts|.*l1_deployment|.*l2_accounts|.*l2_config|.*l2_geth_data"
+docker volume ls -q --filter "name=.*mobymask_watcher_db_data|.*peers_ids|.*mobymask_deployment|.*l1_deployment|.*l2_accounts|.*l2_config|.*l2_geth_data"
 
 # Remove all the listed volumes
-docker volume rm $(docker volume ls -q --filter "name=.*mobymask_watcher_db_data|.*peers_ids|.*mobymask_deployment|.*fixturenet_geth_accounts|.*l1_deployment|.*l2_accounts|.*l2_config|.*l2_geth_data")
+docker volume rm $(docker volume ls -q --filter "name=.*mobymask_watcher_db_data|.*peers_ids|.*mobymask_deployment|.*l1_deployment|.*l2_accounts|.*l2_config|.*l2_geth_data")
 ```
diff --git a/app/data/stacks/mobymask-v2/mobymask-only.md b/app/data/stacks/mobymask-v2/mobymask-only.md
index f4d25702..5ae5dbaa 100644
--- a/app/data/stacks/mobymask-v2/mobymask-only.md
+++ b/app/data/stacks/mobymask-v2/mobymask-only.md
@@ -49,7 +49,11 @@ Create and update an env file to be used in the next step ([defaults](../../conf
   CERC_L2_NODE_HOST=
   CERC_L2_NODE_PORT=
 
-  # Credentials for accounts to perform txs on L2
+  # URL to get CSV with credentials for accounts on L1 to perform txs on L2
+  CERC_L1_ACCOUNTS_CSV_URL=
+
+  # OR
+  # Specify the required account credentials
   CERC_PRIVATE_KEY_DEPLOYER=
   CERC_PRIVATE_KEY_PEER=
 
@@ -118,8 +122,8 @@ Clear volumes created by this stack:
 
 ```bash
 # List all relevant volumes
-docker volume ls -q --filter "name=.*mobymask_watcher_db_data|.*peers_ids|.*mobymask_deployment|.*fixturenet_geth_accounts"
+docker volume ls -q --filter "name=.*mobymask_watcher_db_data|.*peers_ids|.*mobymask_deployment"
 
 # Remove all the listed volumes
-docker volume rm $(docker volume ls -q --filter "name=.*mobymask_watcher_db_data|.*peers_ids|.*mobymask_deployment|.*fixturenet_geth_accounts")
+docker volume rm $(docker volume ls -q --filter "name=.*mobymask_watcher_db_data|.*peers_ids|.*mobymask_deployment")
 ```