diff --git a/tab b/tab
index 535aca5..27f67bb 100755
--- a/tab
+++ b/tab
@@ -6,11 +6,17 @@ import os
 import requests
 
 
-ME    = os.getenv("TAB_ME")
-TOKEN = os.getenv("TAB_TOKEN")
+ME       = os.getenv("TAB_ME")
+TOKEN    = os.getenv("TAB_TOKEN")
+BASE_URI = os.getenv("TAB_BASE_URI", default="https://tab.zeus.gent")
 
-TAP_ACCOUNT  = os.getenv("LEDGER_TAP_ACCOUNT",  "Expenses:Zeuskelder:Drinks and snacks")
-FOOD_ACCOUNT = os.getenv("LEDGER_FOOD_ACCOUNT", "Expenses:Zeuskelder:Food")
+TAP_ACCOUNT  = os.getenv("LEDGER_TAP_ACCOUNT",  default="Expenses:Zeuskelder:Drinks and snacks")
+FOOD_ACCOUNT = os.getenv("LEDGER_FOOD_ACCOUNT", default="Expenses:Zeuskelder:Food")
+
+TAB2LEDGER_NAME    = "tab2ledger"
+TAB2LEDGER_VERSION = "1.0"
+TAB2LEDGER_URL     = "https://git.zeus.gent/midgard/tab2ledger"
+USER_AGENT = os.getenv("TAB2LEDGER_USER_AGENT", default=f"{TAB2LEDGER_NAME} {TAB2LEDGER_VERSION} ({TAB2LEDGER_URL})")
 
 
 def formatted_price(cents):
@@ -70,8 +76,11 @@ def formatted_transactions(transactions, final_balance, me):
 def main(me, token, file=sys.stdout):
 	def get(path):
 		return requests.get(
-			f"https://tab.zeus.gent{path}",
-			headers={"Accept": "application/json", "Authorization": f"Token token={token}"}
+			f"{BASE_URI}{path}",
+			headers={
+				"Accept": "application/json", "Authorization": f"Token token={token}",
+				"User-Agent": USER_AGENT
+			}
 		).json()
 
 	balance      = get(f"/users/{me}")["balance"]