diff --git a/foundry.toml b/foundry.toml
index b4317a3..c39ae2b 100644
--- a/foundry.toml
+++ b/foundry.toml
@@ -12,6 +12,10 @@ gas_reports = ['*']
 fs_permissions = [{ access = "read", path = "./addresses"}, { access = "read", path = "./chainConfigs"}, { access = "read", path = "./package.json" }]
 
 [etherscan]
+optimism = { key = "$OPT_ETHERSCAN_API_KEY" }
+base = { key = "ANY_KEY_IS_OKAY" }
+mainnet = { key = "$ETHERSCAN_API_KEY" }
+
 zora_mainnet = { key = "", chain = 7777777, url = "https://explorer.zora.energy/api\\?" }
 zora_testnet = { key = "", chain = 999, url = "https://explorer.testnet.zora.energy/api\\?" }