diff --git a/lib/components/ens-cache-provider.react.js b/lib/components/ens-cache-provider.react.js
--- a/lib/components/ens-cache-provider.react.js
+++ b/lib/components/ens-cache-provider.react.js
@@ -14,14 +14,14 @@
 );
 
 type Props = {
-  +provider: EthersProvider,
+  +provider: ?EthersProvider,
   +children: React.Node,
 };
 function ENSCacheProvider(props: Props): React.Node {
   const { provider, children } = props;
   const context = React.useMemo(
     () => ({
-      ensCache: new ENSCache(provider),
+      ensCache: provider ? new ENSCache(provider) : null,
     }),
     [provider],
   );
diff --git a/native/utils/ethers-utils.js b/native/utils/ethers-utils.js
--- a/native/utils/ethers-utils.js
+++ b/native/utils/ethers-utils.js
@@ -13,9 +13,9 @@
   alchemyKey = key;
 } catch {}
 
-const provider: EthersProvider = new ethers.providers.AlchemyProvider(
-  'mainnet',
-  alchemyKey,
-);
+let provider: ?EthersProvider;
+if (alchemyKey) {
+  provider = new ethers.providers.AlchemyProvider('mainnet', alchemyKey);
+}
 
 export { provider };