diff --git a/migrations/versions/898f00ea481e_add_mint_currency_refund_details.py b/migrations/versions/898f00ea481e_add_mint_currency_refund_details.py
new file mode 100644
index 00000000..9730a2cc
--- /dev/null
+++ b/migrations/versions/898f00ea481e_add_mint_currency_refund_details.py
@@ -0,0 +1,38 @@
+"""add mint+currency refund details
+
+Revision ID: 898f00ea481e
+Revises: 7bc4e8b02b9d
+Create Date: 2025-08-13 16:45:42.148314
+"""
+
+import sqlalchemy as sa
+import sqlmodel
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision = "898f00ea481e"
+down_revision = "7bc4e8b02b9d"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column(
+        "api_keys",
+        sa.Column("refund_mint_url", sqlmodel.sql.sqltypes.AutoString(), nullable=True),
+    )
+    op.add_column(
+        "api_keys",
+        sa.Column("refund_currency", sqlmodel.sql.sqltypes.AutoString(), nullable=True),
+    )
+    op.drop_column("api_keys", "mint_url")
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column("api_keys", sa.Column("mint_url", sa.VARCHAR(), nullable=True))
+    op.drop_column("api_keys", "refund_currency")
+    op.drop_column("api_keys", "refund_mint_url")
+    # ### end Alembic commands ###
diff --git a/routstr/core/db.py b/routstr/core/db.py
index ac94b291..0b1db704 100644
--- a/routstr/core/db.py
+++ b/routstr/core/db.py
@@ -35,10 +35,14 @@ class ApiKey(SQLModel, table=True):  # type: ignore
         default=0, description="Total spent in millisatoshis (msats)"
     )
     total_requests: int = Field(default=0)
-    mint_url: str | None = Field(
+    refund_mint_url: str | None = Field(
         default=None,
         description="URL of the mint used to create the cashu-token",
     )
+    refund_currency: str | None = Field(
+        default=None,
+        description="Currency of the cashu-token",
+    )
 
 
 async def init_db() -> None: