diff --git a/.github/workflows/contracts-tests.yml b/.github/workflows/contracts-tests.yml
new file mode 100644
index 00000000..bb40dfe4
--- /dev/null
+++ b/.github/workflows/contracts-tests.yml
@@ -0,0 +1,48 @@
+name: contracts-tests
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+  merge_group:
+    branches:
+      - main
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+env:
+  FOUNDRY_PROFILE: ci
+
+jobs:
+  check:
+    strategy:
+      fail-fast: true
+
+    name: Foundry project
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
+      - name: Install Foundry
+        uses: foundry-rs/foundry-toolchain@v1
+        with:
+          version: nightly
+
+      - name: Run Forge build
+        run: |
+          forge --version
+          forge build --sizes --root ./contracts
+        id: build
+
+      - name: Run Forge tests
+        run: |
+          forge test -vvv --root ./contracts
+        id: test
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 00000000..c65a5965
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "contracts/lib/forge-std"]
+	path = contracts/lib/forge-std
+	url = https://github.com/foundry-rs/forge-std
diff --git a/contracts/.gitignore b/contracts/.gitignore
new file mode 100644
index 00000000..85198aaa
--- /dev/null
+++ b/contracts/.gitignore
@@ -0,0 +1,14 @@
+# Compiler files
+cache/
+out/
+
+# Ignores development broadcast logs
+!/broadcast
+/broadcast/*/31337/
+/broadcast/**/dry-run/
+
+# Docs
+docs/
+
+# Dotenv file
+.env
diff --git a/contracts/README.md b/contracts/README.md
new file mode 100644
index 00000000..9265b455
--- /dev/null
+++ b/contracts/README.md
@@ -0,0 +1,66 @@
+## Foundry
+
+**Foundry is a blazing fast, portable and modular toolkit for Ethereum application development written in Rust.**
+
+Foundry consists of:
+
+-   **Forge**: Ethereum testing framework (like Truffle, Hardhat and DappTools).
+-   **Cast**: Swiss army knife for interacting with EVM smart contracts, sending transactions and getting chain data.
+-   **Anvil**: Local Ethereum node, akin to Ganache, Hardhat Network.
+-   **Chisel**: Fast, utilitarian, and verbose solidity REPL.
+
+## Documentation
+
+https://book.getfoundry.sh/
+
+## Usage
+
+### Build
+
+```shell
+$ forge build
+```
+
+### Test
+
+```shell
+$ forge test
+```
+
+### Format
+
+```shell
+$ forge fmt
+```
+
+### Gas Snapshots
+
+```shell
+$ forge snapshot
+```
+
+### Anvil
+
+```shell
+$ anvil
+```
+
+### Deploy
+
+```shell
+$ forge script script/Counter.s.sol:CounterScript --rpc-url <your_rpc_url> --private-key <your_private_key>
+```
+
+### Cast
+
+```shell
+$ cast <subcommand>
+```
+
+### Help
+
+```shell
+$ forge --help
+$ anvil --help
+$ cast --help
+```
diff --git a/contracts/foundry.toml b/contracts/foundry.toml
new file mode 100644
index 00000000..25b918f9
--- /dev/null
+++ b/contracts/foundry.toml
@@ -0,0 +1,6 @@
+[profile.default]
+src = "src"
+out = "out"
+libs = ["lib"]
+
+# See more config options https://github.com/foundry-rs/foundry/blob/master/crates/config/README.md#all-options
diff --git a/contracts/lib/forge-std b/contracts/lib/forge-std
new file mode 160000
index 00000000..978ac6fa
--- /dev/null
+++ b/contracts/lib/forge-std
@@ -0,0 +1 @@
+Subproject commit 978ac6fadb62f5f0b723c996f64be52eddba6801
diff --git a/contracts/script/Counter.s.sol b/contracts/script/Counter.s.sol
new file mode 100644
index 00000000..df9ee8b0
--- /dev/null
+++ b/contracts/script/Counter.s.sol
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: UNLICENSED
+pragma solidity ^0.8.13;
+
+import {Script, console} from "forge-std/Script.sol";
+
+contract CounterScript is Script {
+    function setUp() public {}
+
+    function run() public {
+        vm.broadcast();
+    }
+}
diff --git a/contracts/src/Counter.sol b/contracts/src/Counter.sol
new file mode 100644
index 00000000..aded7997
--- /dev/null
+++ b/contracts/src/Counter.sol
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: UNLICENSED
+pragma solidity ^0.8.13;
+
+contract Counter {
+    uint256 public number;
+
+    function setNumber(uint256 newNumber) public {
+        number = newNumber;
+    }
+
+    function increment() public {
+        number++;
+    }
+}
diff --git a/contracts/test/Counter.t.sol b/contracts/test/Counter.t.sol
new file mode 100644
index 00000000..54b724f7
--- /dev/null
+++ b/contracts/test/Counter.t.sol
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: UNLICENSED
+pragma solidity ^0.8.13;
+
+import {Test, console} from "forge-std/Test.sol";
+import {Counter} from "../src/Counter.sol";
+
+contract CounterTest is Test {
+    Counter public counter;
+
+    function setUp() public {
+        counter = new Counter();
+        counter.setNumber(0);
+    }
+
+    function test_Increment() public {
+        counter.increment();
+        assertEq(counter.number(), 1);
+    }
+
+    function testFuzz_SetNumber(uint256 x) public {
+        counter.setNumber(x);
+        assertEq(counter.number(), x);
+    }
+}