diff --git a/.eslintignore b/.eslintignore
index a033a3c..abe03f6 100644
--- a/.eslintignore
+++ b/.eslintignore
@@ -17,3 +17,5 @@ dist
 gas_report
 
 contracts/vendor
+
+*.flat.sol
diff --git a/.gitignore b/.gitignore
index 9fae613..7f4d7f0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,3 +15,5 @@ dist
 /coverage.json
 
 gas_report
+
+*.flat.sol
diff --git a/.prettierignore b/.prettierignore
index a033a3c..abe03f6 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -17,3 +17,5 @@ dist
 gas_report
 
 contracts/vendor
+
+*.flat.sol
diff --git a/.solhintignore b/.solhintignore
index a033a3c..abe03f6 100644
--- a/.solhintignore
+++ b/.solhintignore
@@ -17,3 +17,5 @@ dist
 gas_report
 
 contracts/vendor
+
+*.flat.sol
diff --git a/README.md b/README.md
index 404b142..16722af 100644
--- a/README.md
+++ b/README.md
@@ -37,11 +37,17 @@ Both alternatives can be migrated to using an API3 feed instead through the Api3
     NETWORK=polygon PROXY_ADDRESS=0x98643CB1BDA4060d8BD2dc19bceB0acF6F03ae17 yarn deploy-deterministically
     ```
 
-    You can also just print the expected address after deployment.
+You can also just print the expected address after deployment.
 
-    ```sh
-    PROXY_ADDRESS=0x98643CB1BDA4060d8BD2dc19bceB0acF6F03ae17 yarn print-deterministic-deployment-address
-    ```
+```sh
+PROXY_ADDRESS=0x98643CB1BDA4060d8BD2dc19bceB0acF6F03ae17 yarn print-deterministic-deployment-address
+```
+
+You can flatten the contract to verify it on a block explorer.
+
+```sh
+yarn flatten
+```
 
 ## Differences between API3 and Chainlink feed interfaces
 
diff --git a/package.json b/package.json
index 90da18e..447b0a6 100644
--- a/package.json
+++ b/package.json
@@ -23,6 +23,7 @@
   "scripts": {
     "build": "hardhat compile && tsc -p tsconfig.build.json",
     "deploy-deterministically": "hardhat run scripts/deploy-deterministically.ts --network $NETWORK",
+    "flatten": "hardhat flatten contracts/Api3ProxyToAggregatorV2V3Interface.sol > Api3ProxyToAggregatorV2V3Interface.flat.sol",
     "lint": "yarn prettier:check && yarn lint:eslint && yarn lint:solhint",
     "lint:eslint": "eslint . --ext .js,.ts",
     "lint:solhint": "solhint ./contracts/**/*.sol",