diff --git a/telegram/http_chat_proxy.py b/telegram/http_chat_proxy.py
index 7ff9025..4f55f4d 100644
--- a/telegram/http_chat_proxy.py
+++ b/telegram/http_chat_proxy.py
@@ -194,7 +194,7 @@ def extract_checkout_qr_url(payload: dict[str, Any] | None) -> str | None:
 
 
 def extract_checkout_url(payload: dict[str, Any] | None) -> str | None:
-    """Return a Telegram-safe Leo checkout URL for an inline payment button."""
+    """Return an explicitly provided Telegram-safe Leo checkout URL for a payment button."""
     if not isinstance(payload, dict):
         return None
     checkout = payload.get("checkout")
@@ -203,8 +203,7 @@ def extract_checkout_url(payload: dict[str, Any] | None) -> str | None:
     telegram = checkout.get("telegram")
     raw_url = None
     if isinstance(telegram, dict):
-        raw_url = telegram.get("buttonUrl") or telegram.get("button_url") or telegram.get("checkoutUrl")
-    raw_url = raw_url or checkout.get("checkoutUrl") or checkout.get("checkout_url")
+        raw_url = telegram.get("buttonUrl") or telegram.get("button_url")
     if not isinstance(raw_url, str):
         return None
     url = raw_url.strip()
diff --git a/tests/test_telegram_leo_x402_bridge.py b/tests/test_telegram_leo_x402_bridge.py
index 8f6b489..d2e6f28 100644
--- a/tests/test_telegram_leo_x402_bridge.py
+++ b/tests/test_telegram_leo_x402_bridge.py
@@ -322,11 +322,9 @@ def test_extract_checkout_qr_photo_message_prefers_structured_telegram_card():
                 "captionHtml": (
                     "<b>Paid Leo research</b>\n"
                     "0.07 USDC on Solana mainnet.\n"
-                    "Pay with the button below or scan the QR.\n"
+                    "Scan the QR or send exactly 0.07 USDC.\n"
                     "Recipient: <code>8EgACpZ16XWEt7YjJPsh1ZheVRZUGmmwQ8nJdmA1o5w4</code>"
                 ),
-                "buttonText": "Pay with x402",
-                "buttonUrl": checkout_url,
             },
         }
     }
@@ -338,7 +336,7 @@ def test_extract_checkout_qr_photo_message_prefers_structured_telegram_card():
         "caption_html": payload["checkout"]["telegram"]["captionHtml"],
         "parse_mode": "HTML",
         "button_text": "Pay with x402",
-        "button_url": checkout_url,
+        "button_url": "",
     }
     assert checkout_url not in card["caption_html"]
     assert "npx agentcash" not in card["caption_html"]
@@ -368,6 +366,29 @@ def test_extract_checkout_url_rejects_non_leo_checkout_url():
     assert extract_checkout_url({"checkout": {"checkoutUrl": "https://example.com/pay"}}) is None
 
 
+def test_extract_checkout_url_does_not_fallback_to_checkout_url():
+    assert (
+        extract_checkout_url(
+            {
+                "checkout": {
+                    "checkoutUrl": "https://leo.livingip.xyz/agents/leo/research/checkout?q=test"
+                }
+            }
+        )
+        is None
+    )
+
+
+def test_extract_checkout_url_accepts_explicit_telegram_button_url():
+    checkout_url = "https://leo.livingip.xyz/agents/leo/research/checkout?q=test"
+    assert (
+        extract_checkout_url(
+            {"checkout": {"telegram": {"buttonUrl": checkout_url}, "checkoutUrl": checkout_url}}
+        )
+        == checkout_url
+    )
+
+
 def test_extract_checkout_qr_photo_message_rejects_non_leo_qr_url():
     assert (
         extract_checkout_qr_photo_message(