diff --git a/core/src/apps/ripple/sign_tx.py b/core/src/apps/ripple/sign_tx.py
index c8957bec4d..8d07fa40c3 100644
--- a/core/src/apps/ripple/sign_tx.py
+++ b/core/src/apps/ripple/sign_tx.py
@@ -9,7 +9,7 @@ if TYPE_CHECKING:
 
 
 # NOTE: it is one big function because that way it is the most flash-space-efficient
-@auto_keychain(__name__)
+@auto_keychain(__name__, slip21_namespaces=[[b"SLIP-0024"]])
 async def sign_tx(msg: RippleSignTx, keychain: Keychain) -> RippleSignedTx:
     from trezor.crypto import der
     from trezor.crypto.curve import secp256k1
@@ -19,7 +19,7 @@ async def sign_tx(msg: RippleSignTx, keychain: Keychain) -> RippleSignedTx:
 
     from apps.common import paths
 
-    from . import helpers, layout
+    from . import SLIP44_ID, helpers, layout
     from .serialize import serialize
 
     payment = msg.payment  # local_cache_attribute
@@ -45,11 +45,24 @@ async def sign_tx(msg: RippleSignTx, keychain: Keychain) -> RippleSignedTx:
     if msg.fee < helpers.MIN_FEE or msg.fee > helpers.MAX_FEE:
         raise ProcessError("Fee must be in the range of 10 to 10,000 drops")
 
-    if payment.destination_tag is not None:
-        await layout.require_confirm_destination_tag(payment.destination_tag)
-    await layout.require_confirm_tx(
-        payment.destination, payment.amount, chunkify=bool(msg.chunkify)
-    )
+    if msg.payment_req:
+        from apps.common.payment_request import PaymentRequestVerifier
+
+        verifier = PaymentRequestVerifier(msg.payment_req, SLIP44_ID, keychain)
+        address = payment.destination
+        if payment.destination_tag:
+            address += f"?dt={payment.destination_tag}"
+        verifier.add_output(payment.amount, address)
+        verifier.verify()
+        # TODO Show payment request memos.
+        await layout.require_confirm_tx(msg.payment_req.recipient_name, payment.amount)
+    else:
+        if payment.destination_tag is not None:
+            await layout.require_confirm_destination_tag(payment.destination_tag)
+        await layout.require_confirm_tx(
+            payment.destination, payment.amount, chunkify=bool(msg.chunkify)
+        )
+
     await layout.require_confirm_total(payment.amount + msg.fee, msg.fee)
 
     # Signs and encodes signature into DER format
diff --git a/python/src/trezorlib/ripple.py b/python/src/trezorlib/ripple.py
index 7b0d988ca7..80e7be7215 100644
--- a/python/src/trezorlib/ripple.py
+++ b/python/src/trezorlib/ripple.py
@@ -14,7 +14,7 @@
 # You should have received a copy of the License along with this library.
 # If not, see <https://www.gnu.org/licenses/lgpl-3.0.html>.
 
-from typing import TYPE_CHECKING, Any
+from typing import TYPE_CHECKING, Any, Optional
 
 from . import messages
 from .protobuf import dict_to_proto
@@ -51,9 +51,11 @@ def sign_tx(
     address_n: "Address",
     msg: messages.RippleSignTx,
     chunkify: bool = False,
+    payment_req: Optional[messages.PaymentRequest] = None,
 ) -> messages.RippleSignedTx:
     msg.address_n = address_n
     msg.chunkify = chunkify
+    msg.payment_req = payment_req
     return client.call(msg, expect=messages.RippleSignedTx)