diff --git a/.gitignore b/.gitignore
index bbe9871..2c7baec 100644
--- a/.gitignore
+++ b/.gitignore
@@ -77,4 +77,9 @@ template.beconf.tfvars
 backend.tf
 *.iso
 .env
-.coverage
\ No newline at end of file
+.coverage
+
+# participants info
+create_accounts_local.sh
+participants.tsv
+generate_tsv.sh
diff --git a/create_accounts.sh b/create_accounts.sh
new file mode 100644
index 0000000..4565e6b
--- /dev/null
+++ b/create_accounts.sh
@@ -0,0 +1,75 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# === DESCRIPTION ==================
+# This script creates accounts for a list of participants in a TSV file.
+# The TSV file should have the following columns:
+# Occupation/Specialty Email Prolific ID.
+# The script will randomly select a specified number of participants and create accounts for them.
+# The script uses the Prolific API to create accounts.
+# The script requires the following environment variables to be set:
+# - API_URL: The URL of the admin API for creating accounts.
+# - API_KEY: The API key for admin API for creating accounts.
+# The script will create accounts for the specified number of participants and print the number of accounts created.
+# The script will also print the number of accounts created.
+# ==================================
+
+# === CONFIGURATION ===
+API_URL="api_url_here"
+API_KEY="api_key_here
+INPUT_FILE="participants.tsv"
+NUM_SAMPLES=100
+
+# === sanity check ===
+if [ ! -f "$INPUT_FILE" ]; then
+  echo "Error: '$INPUT_FILE' not found. Please save your list as a TSV with columns:" \
+       "Occupation/Specialty<TAB>Email<TAB>Prolific ID." >&2
+  exit 1
+fi
+
+# === helper to produce randomized lines of "email|id" with valid emails only ===
+random_stream() {
+  awk -F'\t' '
+    BEGIN { srand() }
+    NR>1 && NF>=3 {
+      email = $2
+      # trim leading/trailing whitespace
+      gsub(/^[[:space:]]+|[[:space:]]+$/, "", email)
+      # only keep if looks like user@domain.tld (no spaces)
+      if (email ~ /^[^[:space:]]+@[^[:space:]]+\.[^[:space:]]+$/) {
+        printf "%f\t%s|%s\n", rand(), email, $3
+      }
+    }
+  ' "$INPUT_FILE" \
+    | sort -n
+}
+
+# === build the JSON array ===
+users_json="["
+count=0
+
+while IFS=$'\t' read -r _ pair; do
+  IFS='|' read -r email id <<< "$pair"
+  users_json+=$(
+    printf '{"name":"Prolific ID: %s","email":"%s","position":"Physician Assistant (PA)","employer":"n/a","area_of_clinical_ex":"n/a"},' \
+           "$id" "$email"
+  )
+  count=$((count+1))
+  [ "$count" -ge "$NUM_SAMPLES" ] && break
+done < <(random_stream)
+
+if [ "$count" -eq 0 ]; then
+  echo "Error: no valid emails found in $INPUT_FILE" >&2
+  exit 1
+fi
+
+# strip trailing comma, close array
+users_json="${users_json%,}]"
+
+# === send one bulk request ===
+curl --location "$API_URL" \
+     --header "X-API-KEY: $API_KEY" \
+     --header 'Content-Type: application/json' \
+     --data-raw "{\"users\":$users_json}"
+
+echo "✅ Created accounts for $count randomly selected participants."