diff --git a/mintlify/global-p2p/getting-started/platform-configuration.mdx b/mintlify/global-p2p/getting-started/platform-configuration.mdx
index 62324dfc8..70963516c 100644
--- a/mintlify/global-p2p/getting-started/platform-configuration.mdx
+++ b/mintlify/global-p2p/getting-started/platform-configuration.mdx
@@ -197,7 +197,7 @@ After updating your configuration, it's recommended to verify that the changes w
 
 ```bash
 curl -X GET "https://api.lightspark.com/grid/2025-10-13/config" \
-  -H "Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 The response should reflect your updated **settings**.
diff --git a/mintlify/global-p2p/onboarding/invitations.mdx b/mintlify/global-p2p/onboarding/invitations.mdx
index 755dbb58e..d7842ca0f 100644
--- a/mintlify/global-p2p/onboarding/invitations.mdx
+++ b/mintlify/global-p2p/onboarding/invitations.mdx
@@ -34,7 +34,7 @@ To create an invitation, make a POST request to `/invitations` with the inviter'
 
 ```bash
 curl -X POST "https://api.lightspark.com/grid/2025-10-13/invitations" \
-  -H "Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H "Content-Type: application/json" \
   -d '{
     "inviterUma": "$inviter@uma.domain",
@@ -67,7 +67,7 @@ To create a pay-by-link invitation, include the `amountToSend` field when creati
 
 ```bash
 curl -X POST "https://api.lightspark.com/grid/2025-10-13/invitations" \
-  -H "Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H "Content-Type: application/json" \
   -d '{
     "inviterUma": "$inviter@uma.domain",
@@ -121,7 +121,7 @@ POST request to `/invitations/{invitationCode}/claim` including the invitee's ne
 
 ```bash
 curl -X POST "https://api.lightspark.com/grid/2025-10-13/invitations/019542f5/claim" \
-  -H "Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H "Content-Type: application/json" \
   -d '{
     "inviteeUma": "$invitee@uma.domain"
@@ -140,7 +140,7 @@ To cancel a pending invitation, make a POST request to `/invitations/{invitation
 
 ```bash
 curl -X POST "https://api.lightspark.com/grid/2025-10-13/invitations/019542f5/cancel" \
-  -H "Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 A successful cancellation will:
diff --git a/mintlify/global-p2p/sending-receiving-payments/receiving-payments.mdx b/mintlify/global-p2p/sending-receiving-payments/receiving-payments.mdx
index de87e5659..b66ee0b36 100644
--- a/mintlify/global-p2p/sending-receiving-payments/receiving-payments.mdx
+++ b/mintlify/global-p2p/sending-receiving-payments/receiving-payments.mdx
@@ -110,7 +110,7 @@ Example of approving asynchronously:
 
 ```bash
 curl -X POST "https://api.lightspark.com/grid/2025-10-13/transactions/Transaction:019542f5-b3e7-1d02-0000-000000000005/approve" \
-  -H "Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H "Content-Type: application/json" \
   -d '{
     "receiverCustomerInfo": {
@@ -124,7 +124,7 @@ Example of rejecting asynchronously:
 
 ```bash
 curl -X POST "https://api.lightspark.com/grid/2025-10-13/transactions/Transaction:019542f5-b3e7-1d02-0000-000000000005/reject" \
-  -H "Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H "Content-Type: application/json" \
   -d '{
     "reason": "RESTRICTED_JURISDICTION"
@@ -187,7 +187,7 @@ To set an external account as the default UMA deposit account for a customer, yo
 
 ```bash
 curl -X POST "https://api.lightspark.com/grid/2025-10-13/customers/external-accounts" \
-  -H "Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H "Content-Type: application/json" \
   -d '{
     "customerId": "Customer:019542f5-b3e7-1d02-0000-000000000001",
diff --git a/mintlify/payouts-and-b2b/payment-flow/list-transactions.mdx b/mintlify/payouts-and-b2b/payment-flow/list-transactions.mdx
index dbb4f7794..5d3ba1ba6 100644
--- a/mintlify/payouts-and-b2b/payment-flow/list-transactions.mdx
+++ b/mintlify/payouts-and-b2b/payment-flow/list-transactions.mdx
@@ -12,7 +12,7 @@ Retrieve transaction history with flexible filtering options. Transactions are r
 
 ```bash cURL
 curl -X GET 'https://api.lightspark.com/grid/2025-10-13/transactions' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET'
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 
 {
   "data": [
@@ -69,14 +69,14 @@ Get all transactions for a specific customer:
 
 ```bash
 curl -X GET 'https://api.lightspark.com/grid/2025-10-13/transactions?customerId=Customer:019542f5-b3e7-1d02-0000-000000000001' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET'
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 Or use your platform's customer ID:
 
 ```bash
 curl -X GET 'https://api.lightspark.com/grid/2025-10-13/transactions?platformCustomerId=customer_12345' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET'
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 ### Filter by transaction type
@@ -87,14 +87,14 @@ Get only incoming or outgoing transactions:
 <Tab title="Outgoing Only">
 ```bash
 curl -X GET 'https://api.lightspark.com/grid/2025-10-13/transactions?type=OUTGOING' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET'
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 </Tab>
 
 <Tab title="Incoming Only">
 ```bash
 curl -X GET 'https://api.lightspark.com/grid/2025-10-13/transactions?type=INCOMING' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET'
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 </Tab>
 </Tabs>
@@ -106,11 +106,11 @@ Get transactions in a specific status:
 ```bash
 # Get all pending transactions
 curl -X GET 'https://api.lightspark.com/grid/2025-10-13/transactions?status=PENDING' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET'
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 
 # Get all completed transactions
 curl -X GET 'https://api.lightspark.com/grid/2025-10-13/transactions?status=COMPLETED' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET'
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 **Available statuses:**
@@ -127,7 +127,7 @@ Get transactions within a specific date range:
 
 ```bash
 curl -X GET 'https://api.lightspark.com/grid/2025-10-13/transactions?startDate=2025-10-01T00:00:00Z&endDate=2025-10-31T23:59:59Z' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET'
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 <Tip>Dates must be in ISO 8601 format (e.g., `2025-10-03T15:00:00Z`).</Tip>
@@ -139,15 +139,15 @@ Get transactions for a specific account:
 ```bash
 # Any transactions involving this account (sent or received)
 curl -X GET 'https://api.lightspark.com/grid/2025-10-13/transactions?accountIdentifier=InternalAccount:e85dcbd6-dced-4ec4-b756-3c3a9ea3d965' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET'
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 
 # Only transactions sent FROM this account
 curl -X GET 'https://api.lightspark.com/grid/2025-10-13/transactions?senderAccountIdentifier=InternalAccount:e85dcbd6-dced-4ec4-b756-3c3a9ea3d965' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET'
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 
 # Only transactions sent TO this account
 curl -X GET 'https://api.lightspark.com/grid/2025-10-13/transactions?receiverAccountIdentifier=ExternalAccount:a12dcbd6-dced-4ec4-b756-3c3a9ea3d123' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET'
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 ## Combining filters
@@ -157,7 +157,7 @@ You can combine multiple filters to narrow down results:
 ```bash
 # Get completed outgoing transactions for a customer in October 2025
 curl -X GET 'https://api.lightspark.com/grid/2025-10-13/transactions?customerId=Customer:019542f5-b3e7-1d02-0000-000000000001&type=OUTGOING&status=COMPLETED&startDate=2025-10-01T00:00:00Z&endDate=2025-10-31T23:59:59Z' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET'
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 ## Pagination
@@ -168,7 +168,7 @@ Handle large result sets with cursor-based pagination:
 <Step title="Get first page">
 ```bash
 curl -X GET 'https://api.lightspark.com/grid/2025-10-13/transactions?limit=20' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET'
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 Response:
@@ -191,7 +191,7 @@ Use the `nextCursor` from the previous response:
 
 ```bash
 curl -X GET 'https://api.lightspark.com/grid/2025-10-13/transactions?limit=20&cursor=eyJpZCI6IlRyYW5z...' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET'
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 </Step>
@@ -236,7 +236,7 @@ Retrieve details for a specific transaction by ID:
 
 ```bash
 curl -X GET 'https://api.lightspark.com/grid/2025-10-13/transactions/Transaction:019542f5-b3e7-1d02-0000-000000000030' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET'
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 ## Best practices
diff --git a/mintlify/payouts-and-b2b/payment-flow/send-payment.mdx b/mintlify/payouts-and-b2b/payment-flow/send-payment.mdx
index eec8d4d5a..bfcf16a1d 100644
--- a/mintlify/payouts-and-b2b/payment-flow/send-payment.mdx
+++ b/mintlify/payouts-and-b2b/payment-flow/send-payment.mdx
@@ -55,7 +55,7 @@ Use the `/transfer-out` endpoint when sending funds in the same currency (no exc
 
 ```bash
 curl -X GET 'https://api.lightspark.com/grid/2025-10-13/customers/internal-accounts?customerId=Customer:019542f5-b3e7-1d02-0000-000000000001' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET'
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 Note the `id` fields from both the internal and external accounts you want to use.
@@ -67,7 +67,7 @@ Note the `id` fields from both the internal and external accounts you want to us
 
 ```bash cURL
 curl -X POST 'https://api.lightspark.com/grid/2025-10-13/transfer-out' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET' \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H 'Content-Type: application/json' \
   -d '{
     "source": {
@@ -201,7 +201,7 @@ Use the quotes flow when sending funds with currency conversion. This locks in a
 
 ```bash cURL
 curl -X POST 'https://api.lightspark.com/grid/2025-10-13/quotes' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET' \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H 'Content-Type: application/json' \
   -d '{
     "source": {
@@ -280,7 +280,7 @@ curl -X POST 'https://api.lightspark.com/grid/2025-10-13/quotes' \
 
 ```bash cURL
 curl -X POST 'https://api.lightspark.com/grid/2025-10-13/quotes/Quote:019542f5-b3e7-1d02-0000-000000000025/execute' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET'
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 ```json Success (200 OK)
diff --git a/mintlify/ramps/accounts/external-accounts.mdx b/mintlify/ramps/accounts/external-accounts.mdx
index 287d4f679..a64ade151 100644
--- a/mintlify/ramps/accounts/external-accounts.mdx
+++ b/mintlify/ramps/accounts/external-accounts.mdx
@@ -47,7 +47,7 @@ The primary destination type for on-ramps:
 
 ```bash
 curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-accounts' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET' \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H 'Content-Type: application/json' \
   -d '{
     "customerId": "Customer:019542f5-b3e7-1d02-0000-000000000001",
@@ -123,7 +123,7 @@ For off-ramp flows, create external bank accounts with full beneficiary informat
 
 ```bash
 curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-accounts' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET' \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H 'Content-Type: application/json' \
   -d '{
     "customerId": "Customer:019542f5-b3e7-1d02-0000-000000000001",
@@ -158,14 +158,14 @@ curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-acco
 
 ```bash
 curl -X GET 'https://api.lightspark.com/grid/2025-10-13/customers/external-accounts?customerId=Customer:019542f5-b3e7-1d02-0000-000000000001' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET'
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 ### Filter by currency
 
 ```bash
 curl -X GET 'https://api.lightspark.com/grid/2025-10-13/customers/external-accounts?customerId=Customer:019542f5-b3e7-1d02-0000-000000000001&currency=BTC' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET'
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 ## Account status and verification
diff --git a/mintlify/ramps/accounts/internal-accounts.mdx b/mintlify/ramps/accounts/internal-accounts.mdx
index f0550666f..6912094fc 100644
--- a/mintlify/ramps/accounts/internal-accounts.mdx
+++ b/mintlify/ramps/accounts/internal-accounts.mdx
@@ -221,7 +221,7 @@ Use platform-level internal accounts for pooled liquidity:
 ```bash
 # Get platform internal accounts
 curl -X GET 'https://api.lightspark.com/grid/2025-10-13/platform/internal-accounts?currency=BTC' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET'
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 <Info>
diff --git a/mintlify/ramps/conversion-flows/fiat-crypto-conversion.mdx b/mintlify/ramps/conversion-flows/fiat-crypto-conversion.mdx
index 86fc4b4f3..272886e3a 100644
--- a/mintlify/ramps/conversion-flows/fiat-crypto-conversion.mdx
+++ b/mintlify/ramps/conversion-flows/fiat-crypto-conversion.mdx
@@ -29,7 +29,7 @@ First, create an external account for the crypto destination:
 
 ```bash cURL
 curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-accounts' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET' \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H 'Content-Type: application/json' \
   -d '{
     "customerId": "Customer:019542f5-b3e7-1d02-0000-000000000001",
@@ -45,7 +45,7 @@ Then create a quote using the external account ID:
 
 ```bash cURL
 curl -X POST 'https://api.lightspark.com/grid/2025-10-13/quotes' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET' \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H 'Content-Type: application/json' \
   -d '{
     "source": {
@@ -213,7 +213,7 @@ For instant on-ramps (e.g., reward payouts), use `immediatelyExecute: true` with
 
 ```bash cURL
 curl -X POST 'https://api.lightspark.com/grid/2025-10-13/quotes' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET' \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H 'Content-Type: application/json' \
   -d '{
     "source": {
diff --git a/mintlify/ramps/conversion-flows/self-custody-wallets.mdx b/mintlify/ramps/conversion-flows/self-custody-wallets.mdx
index 2fe910e97..519d5e015 100644
--- a/mintlify/ramps/conversion-flows/self-custody-wallets.mdx
+++ b/mintlify/ramps/conversion-flows/self-custody-wallets.mdx
@@ -67,7 +67,7 @@ Register the Spark wallet as an external account:
 <CodeGroup>
 ```bash cURL
 curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-accounts' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET' \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H 'Content-Type: application/json' \
   -d '{
     "customerId": "Customer:019542f5-b3e7-1d02-0000-000000000001",
diff --git a/mintlify/ramps/quickstart.mdx b/mintlify/ramps/quickstart.mdx
index 13535c49e..97d512c15 100644
--- a/mintlify/ramps/quickstart.mdx
+++ b/mintlify/ramps/quickstart.mdx
@@ -63,7 +63,7 @@ Register the customer's Spark wallet as an external account so it can be used as
 
 ```bash
 curl -X POST "https://api.lightspark.com/grid/2025-10-13/customers/external-accounts" \
-  -H "Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H "Content-Type: application/json" \
   -d '{
     "customerId": "Customer:019542f5-b3e7-1d02-0000-000000000001",
diff --git a/mintlify/rewards/developer-guides/distributing-rewards.mdx b/mintlify/rewards/developer-guides/distributing-rewards.mdx
index 1e187d3ad..e0afd2b1d 100644
--- a/mintlify/rewards/developer-guides/distributing-rewards.mdx
+++ b/mintlify/rewards/developer-guides/distributing-rewards.mdx
@@ -24,7 +24,7 @@ You can find your platform's internal account by listing all internal accounts f
 
 ```bash
 curl -X GET "https://api.lightspark.com/grid/2025-10-13/platform/internal-accounts" \
-  -H "Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 Response:
@@ -68,7 +68,7 @@ First, create an external account for the destination wallet:
 
 ```bash
 curl -X POST "https://api.lightspark.com/grid/2025-10-13/customers/external-accounts" \
-  -H "Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H "Content-Type: application/json" \
   -d '{
     "customerId": "Customer:019542f5-b3e7-1d02-0000-000000000001",
@@ -84,7 +84,7 @@ Then create the quote using the external account ID:
 
 ```bash
 curl -X POST "https://api.lightspark.com/grid/2025-10-13/quotes" \
-  -H "Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H "Content-Type: application/json" \
   -d '{
     "source": {
@@ -200,7 +200,7 @@ After reviewing the quote's exchange rate and fees, execute it:
 
 ```bash
 curl -X POST "https://api.lightspark.com/grid/2025-10-13/quotes/{quoteId}/execute" \
-  -H "Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 <Note>
@@ -218,7 +218,7 @@ First, create the external account:
 
 ```bash
 curl -X POST "https://api.lightspark.com/grid/2025-10-13/customers/external-accounts" \
-  -H "Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H "Content-Type: application/json" \
   -d '{
     "customerId": "Customer:019542f5-b3e7-1d02-0000-000000000001",
@@ -317,7 +317,7 @@ Then review the exchange rate and fees, and execute:
 
 ```bash
 curl -X POST "https://api.lightspark.com/grid/2025-10-13/quotes/{quoteId}/execute" \
-  -H "Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 ## Best Practices
diff --git a/mintlify/rewards/developer-guides/listing-transactions.mdx b/mintlify/rewards/developer-guides/listing-transactions.mdx
index 460a28028..d04e9035e 100644
--- a/mintlify/rewards/developer-guides/listing-transactions.mdx
+++ b/mintlify/rewards/developer-guides/listing-transactions.mdx
@@ -13,7 +13,7 @@ Retrieve transaction history for Bitcoin rewards distributed through your platfo
 
 ```bash cURL
 curl -X GET 'https://api.lightspark.com/grid/2025-10-13/transactions' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET'
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 ```json response
@@ -70,14 +70,14 @@ Get all Bitcoin rewards sent to a customer:
 
 ```bash
 curl -X GET 'https://api.lightspark.com/grid/2025-10-13/transactions?customerId=Customer:019542f5-b3e7-1d02-0000-000000000001' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET'
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 Or use your platform's customer ID:
 
 ```bash
 curl -X GET 'https://api.lightspark.com/grid/2025-10-13/transactions?platformCustomerId=user_789' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET'
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 ### Rewards by date range
@@ -87,7 +87,7 @@ Get all rewards distributed in a specific period:
 ```bash
 # October 2025 rewards
 curl -X GET 'https://api.lightspark.com/grid/2025-10-13/transactions?startDate=2025-10-01T00:00:00Z&endDate=2025-10-31T23:59:59Z' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET'
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 <Tip>Dates must be in ISO 8601 format (e.g., `2025-10-03T15:00:00Z`).</Tip>
@@ -98,7 +98,7 @@ Track rewards that failed to complete:
 
 ```bash
 curl -X GET 'https://api.lightspark.com/grid/2025-10-13/transactions?status=FAILED&type=OUTGOING' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET'
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 **Transaction statuses:**
@@ -114,7 +114,7 @@ Get all rewards paid from your platform's USD internal account:
 
 ```bash
 curl -X GET 'https://api.lightspark.com/grid/2025-10-13/transactions?senderAccountIdentifier=InternalAccount:e85dcbd6-dced-4ec4-b756-3c3a9ea3d965&type=OUTGOING' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET'
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 ## Combining filters
@@ -124,7 +124,7 @@ Narrow down results by combining multiple filters:
 ```bash
 # All completed rewards for a customer in October
 curl -X GET 'https://api.lightspark.com/grid/2025-10-13/transactions?platformCustomerId=user_789&status=COMPLETED&startDate=2025-10-01T00:00:00Z&endDate=2025-10-31T23:59:59Z' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET'
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 ## Pagination
@@ -165,7 +165,7 @@ Retrieve details for a specific reward transaction:
 
 ```bash
 curl -X GET 'https://api.lightspark.com/grid/2025-10-13/transactions/Transaction:019542f5-b3e7-1d02-0000-000000000025' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET'
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 ## Common use cases
diff --git a/mintlify/rewards/onboarding/configuring-customers.mdx b/mintlify/rewards/onboarding/configuring-customers.mdx
index a39b68076..10da95874 100644
--- a/mintlify/rewards/onboarding/configuring-customers.mdx
+++ b/mintlify/rewards/onboarding/configuring-customers.mdx
@@ -50,7 +50,7 @@ Retrieve a paginated list of customers with optional filtering:
 
 ```bash
 curl -X GET "https://api.lightspark.com/grid/2025-10-13/customers?limit=20&customerType=INDIVIDUAL" \
-  -H "Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 ### Query Parameters
@@ -144,7 +144,7 @@ Get detailed information about a specific customer:
 
 ```bash
 curl -X GET "https://api.lightspark.com/grid/2025-10-13/customers/{customerId}" \
-  -H "Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 ## Deleting Customers
@@ -153,7 +153,7 @@ Delete a customer by their system-generated ID:
 
 ```bash
 curl -X DELETE "https://api.lightspark.com/grid/2025-10-13/customers/{customerId}" \
-  -H "Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 <Warning>
diff --git a/mintlify/rewards/quickstart.mdx b/mintlify/rewards/quickstart.mdx
index 72040c40c..c5a2e3926 100644
--- a/mintlify/rewards/quickstart.mdx
+++ b/mintlify/rewards/quickstart.mdx
@@ -62,7 +62,7 @@ List your platform's internal accounts to see the available balances and funding
 
 ```bash
 curl -X GET "https://api.lightspark.com/grid/2025-10-13/platform/internal-accounts?currency=USD" \
-  -H "Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 ### Response
@@ -198,7 +198,7 @@ Register the customer's Spark wallet as an external account.
 
 ```bash
 curl -X POST "https://api.lightspark.com/grid/2025-10-13/customers/external-accounts" \
-  -H "Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H "Content-Type: application/json" \
   -d '{
     "customerId": "Customer:019542f5-b3e7-1d02-0000-000000000001",
@@ -233,7 +233,7 @@ Create and execute a trade from USD to BTC using the external account as the des
 
 ```bash
 curl -X POST "https://api.lightspark.com/grid/2025-10-13/quotes" \
-  -H "Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H "Content-Type: application/json" \
   -d '{
     "source": {
diff --git a/mintlify/snippets/external-accounts.mdx b/mintlify/snippets/external-accounts.mdx
index 82f756c17..abf4aa9e0 100644
--- a/mintlify/snippets/external-accounts.mdx
+++ b/mintlify/snippets/external-accounts.mdx
@@ -16,7 +16,7 @@ Use the [Discoveries API](/api-reference/discoveries/list-available-receiving-in
 
 ```bash cURL
 curl -X GET 'https://api.lightspark.com/grid/2025-10-13/discoveries?country=PH&currency=PHP' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET'
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 ```json Response
@@ -48,7 +48,7 @@ Use `bankName` from the response as the `bankName` value when creating an extern
 
 ```bash cURL
 curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-accounts' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET' \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H 'Content-Type: application/json' \
   -d '{
     "currency": "USD",
@@ -92,7 +92,7 @@ curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-acco
 
 ```bash cURL
 curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-accounts' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET' \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H 'Content-Type: application/json' \
   -d '{
     "currency": "MXN",
@@ -125,7 +125,7 @@ curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-acco
 
 ```bash cURL
 curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-accounts' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET' \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H 'Content-Type: application/json' \
   -d '{
     "currency": "BRL",
@@ -165,7 +165,7 @@ Colombia supports two payment rails: bank transfer and mobile money.
 
 ```bash cURL
 curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-accounts' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET' \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H 'Content-Type: application/json' \
   -d '{
     "currency": "COP",
@@ -197,7 +197,7 @@ curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-acco
 
 ```bash cURL
 curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-accounts' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET' \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H 'Content-Type: application/json' \
   -d '{
     "currency": "COP",
@@ -241,7 +241,7 @@ El Salvador supports two payment rails: bank transfer and mobile money.
 
 ```bash cURL
 curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-accounts' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET' \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H 'Content-Type: application/json' \
   -d '{
     "currency": "USD",
@@ -271,7 +271,7 @@ curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-acco
 
 ```bash cURL
 curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-accounts' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET' \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H 'Content-Type: application/json' \
   -d '{
     "currency": "USD",
@@ -306,7 +306,7 @@ curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-acco
 
 ```bash cURL
 curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-accounts' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET' \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H 'Content-Type: application/json' \
   -d '{
     "currency": "EUR",
@@ -340,7 +340,7 @@ curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-acco
 
 ```bash cURL
 curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-accounts' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET' \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H 'Content-Type: application/json' \
   -d '{
     "currency": "PHP",
@@ -376,7 +376,7 @@ curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-acco
 
 ```bash cURL
 curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-accounts' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET' \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H 'Content-Type: application/json' \
   -d '{
     "currency": "GBP",
@@ -411,7 +411,7 @@ curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-acco
 
 ```bash cURL
 curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-accounts' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET' \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H 'Content-Type: application/json' \
   -d '{
     "currency": "INR",
@@ -443,7 +443,7 @@ curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-acco
 
 ```bash cURL
 curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-accounts' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET' \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H 'Content-Type: application/json' \
   -d '{
     "currency": "NGN",
@@ -479,7 +479,7 @@ curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-acco
 
 ```bash cURL
 curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-accounts' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET' \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H 'Content-Type: application/json' \
   -d '{
     "currency": "ZAR",
@@ -515,7 +515,7 @@ curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-acco
 
 ```bash cURL
 curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-accounts' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET' \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H 'Content-Type: application/json' \
   -d '{
     "currency": "KES",
@@ -550,7 +550,7 @@ curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-acco
 
 ```bash cURL
 curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-accounts' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET' \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H 'Content-Type: application/json' \
   -d '{
     "currency": "TZS",
@@ -585,7 +585,7 @@ curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-acco
 
 ```bash cURL
 curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-accounts' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET' \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H 'Content-Type: application/json' \
   -d '{
     "currency": "ZMW",
@@ -620,7 +620,7 @@ curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-acco
 
 ```bash cURL
 curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-accounts' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET' \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H 'Content-Type: application/json' \
   -d '{
     "currency": "RWF",
@@ -655,7 +655,7 @@ curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-acco
 
 ```bash cURL
 curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-accounts' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET' \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H 'Content-Type: application/json' \
   -d '{
     "currency": "MWK",
@@ -690,7 +690,7 @@ curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-acco
 
 ```bash cURL
 curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-accounts' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET' \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H 'Content-Type: application/json' \
   -d '{
     "currency": "UGX",
@@ -725,7 +725,7 @@ curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-acco
 
 ```bash cURL
 curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-accounts' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET' \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H 'Content-Type: application/json' \
   -d '{
     "currency": "XOF",
@@ -763,7 +763,7 @@ curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-acco
 
 ```bash cURL
 curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-accounts' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET' \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H 'Content-Type: application/json' \
   -d '{
     "currency": "CAD",
@@ -802,7 +802,7 @@ Use a SWIFT account to send payouts to bank accounts in countries or currencies
 
 ```bash cURL
 curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-accounts' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET' \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H 'Content-Type: application/json' \
   -d '{
     "currency": "USD",
@@ -842,7 +842,7 @@ curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-acco
 
 ```bash cURL
 curl -X POST 'https://api.lightspark.com/grid/2025-10-13/customers/external-accounts' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET' \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H 'Content-Type: application/json' \
   -d '{
     "currency": "BTC",
@@ -981,7 +981,7 @@ Beneficiary data may be reviewed for risk and compliance. Only `ACTIVE` accounts
 
 ```bash
 curl -X GET 'https://api.lightspark.com/grid/2025-10-13/customers/external-accounts?customerId=Customer:019542f5-b3e7-1d02-0000-000000000001' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET'
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 ### List platform accounts
@@ -990,7 +990,7 @@ For platform-wide operations, list all platform-level external accounts:
 
 ```bash
 curl -X GET 'https://api.lightspark.com/grid/2025-10-13/platform/external-accounts' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET'
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 <Info>
@@ -998,6 +998,65 @@ curl -X GET 'https://api.lightspark.com/grid/2025-10-13/platform/external-accoun
   depositing funds from external sources.
 </Info>
 
+## Retrieving a single external account
+
+Fetch one external account by its system-generated ID:
+
+```bash
+curl -X GET 'https://api.lightspark.com/grid/2025-10-13/customers/external-accounts/ExternalAccount:e85dcbd6-dced-4ec4-b756-3c3a9ea3d965' \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
+```
+
+**Response:**
+
+```json
+{
+  "id": "ExternalAccount:e85dcbd6-dced-4ec4-b756-3c3a9ea3d965",
+  "customerId": "Customer:019542f5-b3e7-1d02-0000-000000000001",
+  "status": "ACTIVE",
+  "currency": "USD",
+  "platformAccountId": "acc_123456789",
+  "accountInfo": {
+    "accountType": "USD_ACCOUNT",
+    "accountNumber": "1234567890",
+    "routingNumber": "021000021",
+    "bankName": "Chase Bank",
+    "bankAccountType": "CHECKING",
+    "paymentRails": ["ACH", "WIRE", "RTP", "FEDNOW"],
+    "beneficiary": {
+      "beneficiaryType": "INDIVIDUAL",
+      "fullName": "Jane Doe"
+    }
+  }
+}
+```
+
+<Info>
+  `paymentRails` reports the rails Grid selected for the account. It is
+  returned on the account and is not something you send when creating one.
+</Info>
+
+Returns `404` if no external account matches the ID.
+
+## Deleting an external account
+
+Delete an external account by its system-generated ID:
+
+```bash
+curl -X DELETE 'https://api.lightspark.com/grid/2025-10-13/customers/external-accounts/ExternalAccount:e85dcbd6-dced-4ec4-b756-3c3a9ea3d965' \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
+```
+
+Returns `204 No Content` on success.
+
+<Warning>
+  An account that is currently a **trusted beneficiary** for Strong Customer
+  Authentication cannot be deleted — the request fails with `409` and code
+  `BENEFICIARY_TRUSTED`. Untrust it first via `POST
+  /customers/external-accounts/{externalAccountId}/untrust` and its
+  `/confirm`, then delete.
+</Warning>
+
 ## Best practices
 
 <AccordionGroup>
diff --git a/mintlify/snippets/kyc/kyc-regulated.mdx b/mintlify/snippets/kyc/kyc-regulated.mdx
index 5ce2404c6..11b3c02ab 100644
--- a/mintlify/snippets/kyc/kyc-regulated.mdx
+++ b/mintlify/snippets/kyc/kyc-regulated.mdx
@@ -19,7 +19,7 @@ To register a new customer in the system, use the `POST /customers` endpoint:
 
 ```bash
 curl -X POST "https://api.lightspark.com/grid/2025-10-13/customers" \
-  -H "Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET" \
   -H "Content-Type: application/json" \
   -d '{
     "platformCustomerId": "customer_12345",
diff --git a/mintlify/snippets/reconciliation/reconciliation.mdx b/mintlify/snippets/reconciliation/reconciliation.mdx
index e41968153..cfe2f561f 100644
--- a/mintlify/snippets/reconciliation/reconciliation.mdx
+++ b/mintlify/snippets/reconciliation/reconciliation.mdx
@@ -89,7 +89,7 @@ We recommend querying days from `00:00:00.000` to `23:59:59.999` in your preferr
 
 ```bash cURL
 curl -X GET 'https://api.lightspark.com/grid/2025-10-13/transactions?startDate=2025-10-01T00:00:00.000Z&endDate=2025-10-01T23:59:59.999Z&limit=100' \
-  -H 'Authorization: Basic $GRID_CLIENT_ID:$GRID_CLIENT_SECRET'
+  -u "$GRID_CLIENT_ID:$GRID_CLIENT_SECRET"
 ```
 
 Response