diff --git a/apiserver/apiserver/api/models.py b/apiserver/apiserver/api/models.py
index 4398bad..e8bf57c 100644
--- a/apiserver/apiserver/api/models.py
+++ b/apiserver/apiserver/api/models.py
@@ -78,7 +78,7 @@ class Transaction(models.Model):
     paypal_txn_id = models.CharField(max_length=17, blank=True, null=True, unique=True)
     paypal_txn_type = models.CharField(max_length=64, blank=True, null=True)
     paypal_payer_id = models.CharField(max_length=13, blank=True, null=True)
-    protocoin = models.DecimalField(max_digits=7, decimal_places=2)
+    protocoin = models.DecimalField(max_digits=7, decimal_places=2, default=0)
 
     report_type = models.TextField(blank=True, null=True)
     report_memo = models.TextField(blank=True, null=True)
diff --git a/apiserver/apiserver/api/utils_paypal.py b/apiserver/apiserver/api/utils_paypal.py
index 4010328..a2d0af8 100644
--- a/apiserver/apiserver/api/utils_paypal.py
+++ b/apiserver/apiserver/api/utils_paypal.py
@@ -243,23 +243,33 @@ def check_training(data, training_id, amount):
     logger.info('IPN - Amount valid for training cost, id: ' + str(training.id))
     return create_member_training_tx(data, member, training)
 
-def create_category_tx(data, member, custom_json):
+def create_category_tx(data, member, custom_json, amount):
     transactions = models.Transaction.objects
 
     user = getattr(member, 'user', None)
+    category = custom_json['category']
+
+    if category == 'Exchange':
+        protocoin = amount
+        note = '{} Protocoin Purchase'.format(amount)
+    else:
+        protocoin = 0
+        note = custom_json.get('memo', 'none')
+
     memo = '{} {} - {}, email: {}, note: {}'.format(
         data.get('first_name', 'unknown'),
         data.get('last_name', 'unknown'),
-        custom_json['category'],
+        category,
         data.get('payer_email', 'unknown'),
-        custom_json.get('memo', 'none'),
+        note,
     )
 
     return transactions.create(
         **build_tx(data),
-        category=custom_json['category'],
+        category=category,
         memo=memo,
         user=user,
+        protocoin=protocoin,
     )
 
 
@@ -354,10 +364,10 @@ def process_paypal_ipn(data):
         defaults=dict(user=user),
     )
 
-    if custom_json.get('category', False) in ['Snacks', 'OnAcct', 'Donation', 'Consumables', 'Purchases']:
+    if custom_json.get('category', False) in ['Snacks', 'OnAcct', 'Donation', 'Consumables', 'Purchases', 'Exchange']:
         logger.info('IPN - Category matched')
         update_ipn(ipn, 'Accepted, category')
-        return create_category_tx(data, member, custom_json)
+        return create_category_tx(data, member, custom_json, amount)
 
     monthly_fees = member.monthly_fees
 
diff --git a/webclient/src/Paymaster.js b/webclient/src/Paymaster.js
index 8b4c80b..b1e2b8b 100644
--- a/webclient/src/Paymaster.js
+++ b/webclient/src/Paymaster.js
@@ -9,6 +9,7 @@ export function Paymaster(props) {
 	const [pop, setPop] = useState('20.00');
 	const [locker, setLocker] = useState('5.00');
 	const [consumables, setConsumables] = useState('20.00');
+	const [buyProtocoin, setBuyProtocoin] = useState('10.00');
 	const [consumablesMemo, setConsumablesMemo] = useState('');
 	const [donate, setDonate] = useState('20.00');
 	const [memo, setMemo] = useState('');
@@ -20,6 +21,31 @@ export function Paymaster(props) {
 			<Header size='large'>Paymaster</Header>
 			<p>Use these buttons to send money to Protospace.</p>
 
+			<Header size='medium'>Protocoin</Header>
+			<p>Protocoin is used to buy things at Protospace's vending machines. Current balance: ₱&thinsp;{user.member.protocoin}</p>
+
+			<Grid stackable padded columns={3}>
+				<Grid.Column>
+					Buy {buyProtocoin} Protocoin:
+
+					<div className='pay-custom'>
+						<Input
+							fluid
+							label={{ basic: true, content: '$' }}
+							labelPosition='left'
+							value={buyProtocoin}
+							onChange={(e, v) => setBuyProtocoin(v.value)}
+						/>
+					</div>
+
+					<PayPalPayNow
+						amount={buyProtocoin}
+						name='Protospace Protocoin'
+						custom={JSON.stringify({ category: 'Exchange', member: user.member.id })}
+					/>
+				</Grid.Column>
+			</Grid>
+
 			<Header size='medium'>Snacks, Pop, Coffee</Header>
 			<Grid stackable padded columns={3}>
 				<Grid.Column>
diff --git a/webclient/src/Transactions.js b/webclient/src/Transactions.js
index 7894edf..289f374 100644
--- a/webclient/src/Transactions.js
+++ b/webclient/src/Transactions.js
@@ -281,7 +281,7 @@ export function TransactionList(props) {
 					<Table.HeaderCell>Date</Table.HeaderCell>
 					{!noMember && <Table.HeaderCell>Member</Table.HeaderCell>}
 					<Table.HeaderCell>Amount</Table.HeaderCell>
-					<Table.HeaderCell>Account</Table.HeaderCell>
+					<Table.HeaderCell>Method</Table.HeaderCell>
 					{!noCategory && <Table.HeaderCell>Category</Table.HeaderCell>}
 					<Table.HeaderCell>Memo</Table.HeaderCell>
 				</Table.Row>
@@ -371,7 +371,7 @@ class TransactionTable extends React.Component {
 						<Table.Cell>{transaction.category}</Table.Cell>
 					</Table.Row>
 					<Table.Row>
-						<Table.Cell>Account:</Table.Cell>
+						<Table.Cell>Method:</Table.Cell>
 						<Table.Cell>{transaction.account_type}</Table.Cell>
 					</Table.Row>
 					{/* <Table.Row>