diff --git a/cli/boost b/cli/boost
index 2823d4c2622c799ba6d9ea6281f8b57d249a80d2..f15d990244ed34fa993dd3b8360798f81362d223 100755
--- a/cli/boost
+++ b/cli/boost
@@ -22,6 +22,7 @@ print_usage(){
   echo "  list-channels"
   echo "  list-numbers"
   echo "  release-numbers"
+  echo "  trust"
   echo ""
   echo "To learn what these commands do, run:"
   echo ""
@@ -34,7 +35,8 @@ if [[ $command != "help" ]] &&
      [[ $command != "create-number" ]] &&
      [[ $command != "list-channels" ]] &&
      [[ $command != "list-numbers" ]] &&
-     [[ $command != "release-numbers" ]]
+     [[ $command != "release-numbers" ]] &&
+     [[ $command != "trust" ]]
 then
   print_usage
   exit 1
diff --git a/cli/boost-commands/help b/cli/boost-commands/help
index da55cafbb794aef3bb3b9c2a4ae6896e7604e404..237f16d2eea96685fc6b7071138c34f1f1e86595 100755
--- a/cli/boost-commands/help
+++ b/cli/boost-commands/help
@@ -21,6 +21,9 @@ boost cli supports the following commands:
   release-numbers <path>
     - releases all phone numbers with twilio ids listed at given path
 
+  trust <user phone number>
+    - trusts all safety numbers associated with a user's phone number
+
 for more detailed instructions on any command, run:
 
   boost <command> -h
diff --git a/cli/boost-commands/trust b/cli/boost-commands/trust
new file mode 100755
index 0000000000000000000000000000000000000000..7227c4372bf2707cdab67b282db959cfb0bb341f
--- /dev/null
+++ b/cli/boost-commands/trust
@@ -0,0 +1,43 @@
+#!/usr/bin/env bash
+
+if [[ $1 == "-h" ]] || [[ $1 == "--help" ]];then
+  echo "this command trusts all safety numbers associated with a user's phone number. valid options are:"
+  echo ""
+  echo "-p : user phone number";
+  echo "-u : url to target (in dev, use signalboost.ngrok.io)";
+  echo ""
+  exit 1
+fi
+
+echo "--- checking environment and args..."
+
+if [ -z $SIGNALBOOST_API_TOKEN ];then
+  echo "--- ERROR: no SIGNALBOOST_API_TOKEN found. try \`\$ set -a && source .env && set +a\`"
+  exit 1
+fi
+
+while getopts ":p:n:s:u:" opt; do
+  case "$opt" in
+    p)
+      phone_number="$OPTARG"
+      ;;
+    u)
+      url="$OPTARG"
+      ;;
+  esac
+done
+
+if [[ ! $phone_number =~ ^\+(1|52)[0-9]{10}$ ]];then
+  echo "> ERROR: -p must be a 10 digit phone number prefixed by a country code (+1 or +52)"
+  exit 1
+fi
+
+if [ -z $url ];then url=${SIGNALBOOST_HOST_URL}; fi
+
+echo "--- trusting all safety numbers for user phone number ${phone_number} at url ${url}"
+
+curl -s -X POST \
+     -H "Content-Type: application/json" \
+     -H "Token: $SIGNALBOOST_API_TOKEN" \
+     -d "{ \"memberPhoneNumber\": \"$phone_number\" }" \
+     https://${url}/channels | jq