diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..bcc0b7a
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+.idea
+vendor/
\ No newline at end of file
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..d6e41bd
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2020 minicli
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..d4c4a54
--- /dev/null
+++ b/README.md
@@ -0,0 +1,3 @@
+# minicache
+
+A simple JSON file cache built for minicli (but can be used in any app)
diff --git a/composer.json b/composer.json
new file mode 100644
index 0000000..82e4795
--- /dev/null
+++ b/composer.json
@@ -0,0 +1,17 @@
+{
+  "name": "minicli/minicache",
+  "type": "library",
+  "description": "A simple json file cache for minicli",
+  "license": "MIT",
+  "homepage": "https://github.com/minicli/minicli",
+  "keywords": ["micro","cache","json"],
+  "autoload": {
+    "psr-4": {
+      "Minicli\\Minicache\\": "src/"
+    }
+  },
+  "require": {
+    "minicli/minicli": "^1.0",
+    "ext-json": "*"
+  }
+}
diff --git a/src/FileCache.php b/src/FileCache.php
new file mode 100644
index 0000000..73843f6
--- /dev/null
+++ b/src/FileCache.php
@@ -0,0 +1,71 @@
+<?php
+
+namespace Minicli\Minicache;
+
+class FileCache
+{
+    protected $cache_dir;
+    protected $cache_expiry;
+
+    /**
+     * FileCache constructor.
+     * @param string $cache_dir
+     * @param int $cache_expiry
+     */
+    public function __construct($cache_dir, $cache_expiry = 60)
+    {
+        $this->cache_dir = $cache_dir;
+        $this->cache_expiry = $cache_expiry;
+    }
+
+    /**
+     * @param string $unique_identifier
+     * @return string
+     */
+    public function getCacheFile($unique_identifier)
+    {
+        return $this->cache_dir . '/' . md5($unique_identifier) . '.json';
+    }
+
+    /**
+     * @param string $unique_identifier
+     * @return null|string
+     */
+    public function getCached($unique_identifier)
+    {
+        $cache_file = $this->getCacheFile($unique_identifier);
+
+        if (is_file($cache_file)) {
+            return file_get_contents($cache_file);
+        }
+
+        return null;
+    }
+
+    /**
+     * @param string $unique_identifier
+     * @return null|string
+     */
+    public function getCachedUnlessExpired($unique_identifier)
+    {
+        $cache_file = $this->getCacheFile($unique_identifier);
+
+        // is it still valid?
+        if (is_file($cache_file) && (time() - filemtime($cache_file) < 60*$this->cache_expiry)) {
+            return file_get_contents($cache_file);
+        }
+
+        return null;
+    }
+
+    /**
+     * @param string $content
+     * @param string $unique_identifier
+     */
+    public function save($content, $unique_identifier)
+    {
+        $cache_file = $this->getCacheFile($unique_identifier);
+        
+        file_put_contents($cache_file, $content);
+    }
+}
\ No newline at end of file