diff --git a/foundry.toml b/foundry.toml
index 4f940936..2480c3a2 100644
--- a/foundry.toml
+++ b/foundry.toml
@@ -63,6 +63,9 @@
   out = "docs"
   repository = "https://github.com/sablier-labs/flow"
 
+[etherscan]
+  etherscan = { key = "${ETHERSCAN_API_KEY}" }
+
 [fmt]
   bracket_spacing = true
   int_types = "long"