diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 795b4ba..91f43d3 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -15,5 +15,11 @@ jobs:
 
       - uses: bgd-labs/github-workflows/.github/actions/setup-node@feat/actions-setup-node
 
-      - name: test
+      - name: test lib
         run: npm test -- --run
+
+      - name: test action
+        uses: ./
+        with:
+          ALCHEMY_API_KEY: "bla"
+          RPC_POLYGON: "https://rpc.polygon.com"
diff --git a/action.yml b/action.yml
new file mode 100644
index 0000000..87b0b00
--- /dev/null
+++ b/action.yml
@@ -0,0 +1,37 @@
+name: "rpc-env"
+description: "Iterates over the supported chain ids and sets the corresponding env var"
+inputs:
+  ALCHEMY_API_KEY:
+    description: "Alchemy API key"
+  RPC_MAINNET:
+    description: "RPC for mainnet"
+  RPC_POLYGON:
+    description: "RPC for polygon"
+  RPC_AVALANCHE:
+    description: "RPC for avalanche"
+  RPC_OPTIMISM:
+    description: "RPC for optimism"
+  RPC_ARBITRUM:
+    description: "RPC for arbitrum"
+  RPC_METIS:
+    description: "RPC for metis"
+  RPC_BASE:
+    description: "RPC for base"
+  RPC_FANTOM:
+    description: "RPC for fantom"
+  RPC_BNB:
+    description: "RPC for bnb"
+  RPC_GNOSIS:
+    description: "RPC for gnosis"
+  RPC_ZKEVM:
+    description: "RPC for polygon zk evm"
+  RPC_SCROLL:
+    description: "RPC for scroll"
+  RPC_ZKSYNC:
+    description: "RPC for zksync"
+  RPC_SEPOLIA:
+    description: "RPC for sepolia"
+
+runs:
+  using: "node20"
+  main: dist/action.js