diff --git a/.env.example b/.env.example
new file mode 100644
index 0000000..18268ca
--- /dev/null
+++ b/.env.example
@@ -0,0 +1,2 @@
+PORT=3000
+CLERK_SECRET_KEY=
diff --git a/package-lock.json b/package-lock.json
index d1644b3..66086bf 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,9 +9,14 @@
       "version": "0.0.1",
       "license": "UNLICENSED",
       "dependencies": {
+        "@clerk/backend": "^1.26.0",
         "@nestjs/common": "^11.0.1",
+        "@nestjs/config": "^4.0.2",
         "@nestjs/core": "^11.0.1",
         "@nestjs/platform-express": "^11.0.1",
+        "class-transformer": "^0.5.1",
+        "class-validator": "^0.14.1",
+        "express": "^5.1.0",
         "reflect-metadata": "^0.2.2",
         "rxjs": "^7.8.1"
       },
@@ -32,6 +37,7 @@
         "eslint-plugin-prettier": "^5.2.2",
         "globals": "^16.0.0",
         "jest": "^29.7.0",
+        "jest-junit": "^16.0.0",
         "prettier": "^3.4.2",
         "source-map-support": "^0.5.21",
         "supertest": "^7.0.0",
@@ -712,6 +718,81 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/@clerk/backend": {
+      "version": "1.26.0",
+      "resolved": "https://registry.npmjs.org/@clerk/backend/-/backend-1.26.0.tgz",
+      "integrity": "sha512-ioZBMnwm4DD8IVPGDjFW3wkyn1JTMvTlsmdHGYsjdbXLtbRFVRJelAIMMGLcSmqMgzTKxnrJSOz8PxPjSMUFtw==",
+      "license": "MIT",
+      "dependencies": {
+        "@clerk/shared": "^3.3.0",
+        "@clerk/types": "^4.50.2",
+        "cookie": "1.0.2",
+        "snakecase-keys": "8.0.1",
+        "tslib": "2.8.1"
+      },
+      "engines": {
+        "node": ">=18.17.0"
+      },
+      "peerDependencies": {
+        "svix": "^1.62.0"
+      },
+      "peerDependenciesMeta": {
+        "svix": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@clerk/backend/node_modules/cookie": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/cookie/-/cookie-1.0.2.tgz",
+      "integrity": "sha512-9Kr/j4O16ISv8zBBhJoi4bXOYNTkFLOqSL3UDB0njXxCXNezjeyVrJyGOWtgfs/q2km1gwBcfH8q1yEGoMYunA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/@clerk/shared": {
+      "version": "3.3.0",
+      "resolved": "https://registry.npmjs.org/@clerk/shared/-/shared-3.3.0.tgz",
+      "integrity": "sha512-hO1M5aRMzJVqkw6lWJ7NFVG5hWEnTZBUZGeHMYRwSPQzQNsgqsRMvpmaJO0Y2o0HNk50PpwZHaiFHcghUpfMiw==",
+      "hasInstallScript": true,
+      "license": "MIT",
+      "dependencies": {
+        "@clerk/types": "^4.50.2",
+        "dequal": "2.0.3",
+        "glob-to-regexp": "0.4.1",
+        "js-cookie": "3.0.5",
+        "std-env": "^3.8.1",
+        "swr": "^2.3.3"
+      },
+      "engines": {
+        "node": ">=18.17.0"
+      },
+      "peerDependencies": {
+        "react": "^18.0.0 || ^19.0.0 || ^19.0.0-0",
+        "react-dom": "^18.0.0 || ^19.0.0 || ^19.0.0-0"
+      },
+      "peerDependenciesMeta": {
+        "react": {
+          "optional": true
+        },
+        "react-dom": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@clerk/types": {
+      "version": "4.50.2",
+      "resolved": "https://registry.npmjs.org/@clerk/types/-/types-4.50.2.tgz",
+      "integrity": "sha512-4m1RlV/Dl3ZGW5FAXmKfdCbhF7uTDDvaADZH1F6L3d3lRBdI6i7GppK1KqscOSgoC8OwJqGaiDVUPsg+Pp8usg==",
+      "license": "MIT",
+      "dependencies": {
+        "csstype": "3.1.3"
+      },
+      "engines": {
+        "node": ">=18.17.0"
+      }
+    },
     "node_modules/@colors/colors": {
       "version": "1.5.0",
       "resolved": "https://registry.npmjs.org/@colors/colors/-/colors-1.5.0.tgz",
@@ -2300,6 +2381,21 @@
         }
       }
     },
+    "node_modules/@nestjs/config": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/@nestjs/config/-/config-4.0.2.tgz",
+      "integrity": "sha512-McMW6EXtpc8+CwTUwFdg6h7dYcBUpH5iUILCclAsa+MbCEvC9ZKu4dCHRlJqALuhjLw97pbQu62l4+wRwGeZqA==",
+      "license": "MIT",
+      "dependencies": {
+        "dotenv": "16.4.7",
+        "dotenv-expand": "12.0.1",
+        "lodash": "4.17.21"
+      },
+      "peerDependencies": {
+        "@nestjs/common": "^10.0.0 || ^11.0.0",
+        "rxjs": "^7.1.0"
+      }
+    },
     "node_modules/@nestjs/core": {
       "version": "11.0.12",
       "resolved": "https://registry.npmjs.org/@nestjs/core/-/core-11.0.12.tgz",
@@ -2362,6 +2458,84 @@
         "@nestjs/core": "^11.0.0"
       }
     },
+    "node_modules/@nestjs/platform-express/node_modules/content-disposition": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-1.0.0.tgz",
+      "integrity": "sha512-Au9nRL8VNUut/XSzbQA38+M78dzP4D+eqg3gfJHMIHHYa3bg067xj1KxMUWj+VULbiZMowKngFFbKczUrNJ1mg==",
+      "license": "MIT",
+      "dependencies": {
+        "safe-buffer": "5.2.1"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/@nestjs/platform-express/node_modules/debug": {
+      "version": "4.3.6",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.6.tgz",
+      "integrity": "sha512-O/09Bd4Z1fBrU4VzkhFqVgpPzaGbw6Sm9FEkBT1A/YBXQFGuuSxa1dN2nxgxS34JmKXqYx8CZAwEVoJFImUXIg==",
+      "license": "MIT",
+      "dependencies": {
+        "ms": "2.1.2"
+      },
+      "engines": {
+        "node": ">=6.0"
+      },
+      "peerDependenciesMeta": {
+        "supports-color": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@nestjs/platform-express/node_modules/express": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/express/-/express-5.0.1.tgz",
+      "integrity": "sha512-ORF7g6qGnD+YtUG9yx4DFoqCShNMmUKiXuT5oWMHiOvt/4WFbHC6yCwQMTSBMno7AqntNCAzzcnnjowRkTL9eQ==",
+      "license": "MIT",
+      "dependencies": {
+        "accepts": "^2.0.0",
+        "body-parser": "^2.0.1",
+        "content-disposition": "^1.0.0",
+        "content-type": "~1.0.4",
+        "cookie": "0.7.1",
+        "cookie-signature": "^1.2.1",
+        "debug": "4.3.6",
+        "depd": "2.0.0",
+        "encodeurl": "~2.0.0",
+        "escape-html": "~1.0.3",
+        "etag": "~1.8.1",
+        "finalhandler": "^2.0.0",
+        "fresh": "2.0.0",
+        "http-errors": "2.0.0",
+        "merge-descriptors": "^2.0.0",
+        "methods": "~1.1.2",
+        "mime-types": "^3.0.0",
+        "on-finished": "2.4.1",
+        "once": "1.4.0",
+        "parseurl": "~1.3.3",
+        "proxy-addr": "~2.0.7",
+        "qs": "6.13.0",
+        "range-parser": "~1.2.1",
+        "router": "^2.0.0",
+        "safe-buffer": "5.2.1",
+        "send": "^1.1.0",
+        "serve-static": "^2.1.0",
+        "setprototypeof": "1.2.0",
+        "statuses": "2.0.1",
+        "type-is": "^2.0.0",
+        "utils-merge": "1.0.1",
+        "vary": "~1.1.2"
+      },
+      "engines": {
+        "node": ">= 18"
+      }
+    },
+    "node_modules/@nestjs/platform-express/node_modules/ms": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
+      "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
+      "license": "MIT"
+    },
     "node_modules/@nestjs/schematics": {
       "version": "11.0.2",
       "resolved": "https://registry.npmjs.org/@nestjs/schematics/-/schematics-11.0.2.tgz",
@@ -3235,6 +3409,12 @@
         "@types/superagent": "^8.1.0"
       }
     },
+    "node_modules/@types/validator": {
+      "version": "13.12.3",
+      "resolved": "https://registry.npmjs.org/@types/validator/-/validator-13.12.3.tgz",
+      "integrity": "sha512-2ipwZ2NydGQJImne+FhNdhgRM37e9lCev99KnqkbFHd94Xn/mErARWI1RSLem1QA19ch5kOhzIZd7e8CA2FI8g==",
+      "license": "MIT"
+    },
     "node_modules/@types/yargs": {
       "version": "17.0.33",
       "resolved": "https://registry.npmjs.org/@types/yargs/-/yargs-17.0.33.tgz",
@@ -4672,6 +4852,23 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/class-transformer": {
+      "version": "0.5.1",
+      "resolved": "https://registry.npmjs.org/class-transformer/-/class-transformer-0.5.1.tgz",
+      "integrity": "sha512-SQa1Ws6hUbfC98vKGxZH3KFY0Y1lm5Zm0SY8XX9zbK7FJCyVEac3ATW0RIpwzW+oOfmHE5PMPufDG9hCfoEOMw==",
+      "license": "MIT"
+    },
+    "node_modules/class-validator": {
+      "version": "0.14.1",
+      "resolved": "https://registry.npmjs.org/class-validator/-/class-validator-0.14.1.tgz",
+      "integrity": "sha512-2VEG9JICxIqTpoK1eMzZqaV+u/EiwEJkMGzTrZf6sU/fwsnOITVgYJ8yojSy6CaXtO9V0Cc6ZQZ8h8m4UBuLwQ==",
+      "license": "MIT",
+      "dependencies": {
+        "@types/validator": "^13.11.8",
+        "libphonenumber-js": "^1.10.53",
+        "validator": "^13.9.0"
+      }
+    },
     "node_modules/cli-cursor": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/cli-cursor/-/cli-cursor-3.1.0.tgz",
@@ -5053,6 +5250,12 @@
         "node": ">= 8"
       }
     },
+    "node_modules/csstype": {
+      "version": "3.1.3",
+      "resolved": "https://registry.npmjs.org/csstype/-/csstype-3.1.3.tgz",
+      "integrity": "sha512-M1uQkMl8rQK/szD0LNhtqxIPLpimGm8sOBwU7lLnCpSbTyY3yeU1Vc7l4KT5zT4s/yOxHH5O7tIuuLOCnLADRw==",
+      "license": "MIT"
+    },
     "node_modules/debug": {
       "version": "4.4.0",
       "resolved": "https://registry.npmjs.org/debug/-/debug-4.4.0.tgz",
@@ -5173,6 +5376,15 @@
         "node": ">= 0.8"
       }
     },
+    "node_modules/dequal": {
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/dequal/-/dequal-2.0.3.tgz",
+      "integrity": "sha512-0je+qPKHEMohvfRTCEo3CrPG6cAzAYgmzKyxRiYSSDkS6eGJdyVJm7WaYA5ECaAD9wLB2T4EEeymA5aFVcYXCA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=6"
+      }
+    },
     "node_modules/detect-newline": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/detect-newline/-/detect-newline-3.1.0.tgz",
@@ -5214,6 +5426,43 @@
         "node": "^14.15.0 || ^16.10.0 || >=18.0.0"
       }
     },
+    "node_modules/dot-case": {
+      "version": "3.0.4",
+      "resolved": "https://registry.npmjs.org/dot-case/-/dot-case-3.0.4.tgz",
+      "integrity": "sha512-Kv5nKlh6yRrdrGvxeJ2e5y2eRUpkUosIW4A2AS38zwSz27zu7ufDwQPi5Jhs3XAlGNetl3bmnGhQsMtkKJnj3w==",
+      "license": "MIT",
+      "dependencies": {
+        "no-case": "^3.0.4",
+        "tslib": "^2.0.3"
+      }
+    },
+    "node_modules/dotenv": {
+      "version": "16.4.7",
+      "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-16.4.7.tgz",
+      "integrity": "sha512-47qPchRCykZC03FhkYAhrvwU4xDBFIj1QPqaarj6mdM/hgUzfPHcpkHJOn3mJAufFeeAxAzeGsr5X0M4k6fLZQ==",
+      "license": "BSD-2-Clause",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://dotenvx.com"
+      }
+    },
+    "node_modules/dotenv-expand": {
+      "version": "12.0.1",
+      "resolved": "https://registry.npmjs.org/dotenv-expand/-/dotenv-expand-12.0.1.tgz",
+      "integrity": "sha512-LaKRbou8gt0RNID/9RoI+J2rvXsBRPMV7p+ElHlPhcSARbCPDYcYG2s1TIzAfWv4YSgyY5taidWzzs31lNV3yQ==",
+      "license": "BSD-2-Clause",
+      "dependencies": {
+        "dotenv": "^16.4.5"
+      },
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://dotenvx.com"
+      }
+    },
     "node_modules/dunder-proto": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/dunder-proto/-/dunder-proto-1.0.1.tgz",
@@ -5689,46 +5938,45 @@
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-      "resolved": "https://registry.npmjs.org/express/-/express-5.0.1.tgz",
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+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/express/-/express-5.1.0.tgz",
+      "integrity": "sha512-DT9ck5YIRU+8GYzzU5kT3eHGA5iL+1Zd0EutOmTE9Dtk+Tvuzd23VBU+ec7HPNSTxXYO55gPV/hq4pSBJDjFpA==",
       "license": "MIT",
       "dependencies": {
         "accepts": "^2.0.0",
-        "body-parser": "^2.0.1",
+        "body-parser": "^2.2.0",
         "content-disposition": "^1.0.0",
-        "content-type": "~1.0.4",
-        "cookie": "0.7.1",
+        "content-type": "^1.0.5",
+        "cookie": "^0.7.1",
         "cookie-signature": "^1.2.1",
-        "debug": "4.3.6",
-        "depd": "2.0.0",
-        "encodeurl": "~2.0.0",
-        "escape-html": "~1.0.3",
-        "etag": "~1.8.1",
-        "finalhandler": "^2.0.0",
-        "fresh": "2.0.0",
-        "http-errors": "2.0.0",
+        "debug": "^4.4.0",
+        "encodeurl": "^2.0.0",
+        "escape-html": "^1.0.3",
+        "etag": "^1.8.1",
+        "finalhandler": "^2.1.0",
+        "fresh": "^2.0.0",
+        "http-errors": "^2.0.0",
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-        "methods": "~1.1.2",
         "mime-types": "^3.0.0",
-        "on-finished": "2.4.1",
-        "once": "1.4.0",
-        "parseurl": "~1.3.3",
-        "proxy-addr": "~2.0.7",
-        "qs": "6.13.0",
-        "range-parser": "~1.2.1",
-        "router": "^2.0.0",
-        "safe-buffer": "5.2.1",
+        "on-finished": "^2.4.1",
+        "once": "^1.4.0",
+        "parseurl": "^1.3.3",
+        "proxy-addr": "^2.0.7",
+        "qs": "^6.14.0",
+        "range-parser": "^1.2.1",
+        "router": "^2.2.0",
         "send": "^1.1.0",
-        "serve-static": "^2.1.0",
-        "setprototypeof": "1.2.0",
-        "statuses": "2.0.1",
-        "type-is": "^2.0.0",
-        "utils-merge": "1.0.1",
-        "vary": "~1.1.2"
+        "serve-static": "^2.2.0",
+        "statuses": "^2.0.1",
+        "type-is": "^2.0.1",
+        "vary": "^1.1.2"
       },
       "engines": {
         "node": ">= 18"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/express"
       }
     },
     "node_modules/express/node_modules/content-disposition": {
@@ -5743,29 +5991,21 @@
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-      "license": "MIT",
+    "node_modules/express/node_modules/qs": {
+      "version": "6.14.0",
+      "resolved": "https://registry.npmjs.org/qs/-/qs-6.14.0.tgz",
+      "integrity": "sha512-YWWTjgABSKcvs/nWBi9PycY/JiPJqOD4JA6o9Sej2AtvSGarXxKC3OQSk4pAarbdQlKAh5D4FCQkJNkW+GAn3w==",
+      "license": "BSD-3-Clause",
       "dependencies": {
-        "ms": "2.1.2"
+        "side-channel": "^1.1.0"
       },
       "engines": {
-        "node": ">=6.0"
+        "node": ">=0.6"
       },
-      "peerDependenciesMeta": {
-        "supports-color": {
-          "optional": true
-        }
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
       }
     },
-    "node_modules/express/node_modules/ms": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
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@@ -6503,7 +6743,6 @@
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-      "dev": true,
       "license": "BSD-2-Clause"
     },
     "node_modules/glob/node_modules/brace-expansion": {
@@ -7403,6 +7642,58 @@
         "fsevents": "^2.3.2"
       }
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+    "node_modules/jest-junit": {
+      "version": "16.0.0",
+      "resolved": "https://registry.npmjs.org/jest-junit/-/jest-junit-16.0.0.tgz",
+      "integrity": "sha512-A94mmw6NfJab4Fg/BlvVOUXzXgF0XIH6EmTgJ5NDPp4xoKq0Kr7sErb+4Xs9nZvu58pJojz5RFGpqnZYJTrRfQ==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "dependencies": {
+        "mkdirp": "^1.0.4",
+        "strip-ansi": "^6.0.1",
+        "uuid": "^8.3.2",
+        "xml": "^1.0.1"
+      },
+      "engines": {
+        "node": ">=10.12.0"
+      }
+    },
+    "node_modules/jest-junit/node_modules/ansi-regex": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
+      "integrity": "sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/jest-junit/node_modules/mkdirp": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-1.0.4.tgz",
+      "integrity": "sha512-vVqVZQyf3WLx2Shd0qJ9xuvqgAyKPLAiqITEtqW0oIUjzo3PePDd6fW9iFz30ef7Ysp/oiWqbhszeGWW2T6Gzw==",
+      "dev": true,
+      "license": "MIT",
+      "bin": {
+        "mkdirp": "bin/cmd.js"
+      },
+      "engines": {
+        "node": ">=10"
+      }
+    },
+    "node_modules/jest-junit/node_modules/strip-ansi": {
+      "version": "6.0.1",
+      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz",
+      "integrity": "sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "ansi-regex": "^5.0.1"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
     "node_modules/jest-leak-detector": {
       "version": "29.7.0",
       "resolved": "https://registry.npmjs.org/jest-leak-detector/-/jest-leak-detector-29.7.0.tgz",
@@ -7788,6 +8079,15 @@
         "url": "https://github.com/chalk/supports-color?sponsor=1"
       }
     },
+    "node_modules/js-cookie": {
+      "version": "3.0.5",
+      "resolved": "https://registry.npmjs.org/js-cookie/-/js-cookie-3.0.5.tgz",
+      "integrity": "sha512-cEiJEAEoIbWfCZYKWhVwFuvPX1gETRYPw6LlaTKoxD3s2AkXzkCjnp6h0V77ozyqj0jakteJ4YqDJT830+lVGw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=14"
+      }
+    },
     "node_modules/js-tokens": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-4.0.0.tgz",
@@ -7936,6 +8236,12 @@
         "node": ">= 0.8.0"
       }
     },
+    "node_modules/libphonenumber-js": {
+      "version": "1.12.6",
+      "resolved": "https://registry.npmjs.org/libphonenumber-js/-/libphonenumber-js-1.12.6.tgz",
+      "integrity": "sha512-PJiS4ETaUfCOFLpmtKzAbqZQjCCKVu2OhTV4SVNNE7c2nu/dACvtCqj4L0i/KWNnIgRv7yrILvBj5Lonv5Ncxw==",
+      "license": "MIT"
+    },
     "node_modules/lines-and-columns": {
       "version": "1.2.4",
       "resolved": "https://registry.npmjs.org/lines-and-columns/-/lines-and-columns-1.2.4.tgz",
@@ -7973,7 +8279,6 @@
       "version": "4.17.21",
       "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
       "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==",
-      "dev": true,
       "license": "MIT"
     },
     "node_modules/lodash.memoize": {
@@ -8007,6 +8312,15 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/lower-case": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/lower-case/-/lower-case-2.0.2.tgz",
+      "integrity": "sha512-7fm3l3NAF9WfN6W3JOmf5drwpVqX78JtoGJ3A6W0a6ZnldM41w2fV5D490psKFTpMds8TJse/eHLFFsNHHjHgg==",
+      "license": "MIT",
+      "dependencies": {
+        "tslib": "^2.0.3"
+      }
+    },
     "node_modules/lowercase-keys": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/lowercase-keys/-/lowercase-keys-3.0.0.tgz",
@@ -8073,6 +8387,18 @@
         "tmpl": "1.0.5"
       }
     },
+    "node_modules/map-obj": {
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/map-obj/-/map-obj-4.3.0.tgz",
+      "integrity": "sha512-hdN1wVrZbb29eBGiGjJbeP8JbKjq1urkHJ/LIP/NY48MZ1QVXUsQBV1G1zvYFHn1XE06cwjBsOI2K3Ulnj1YXQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=8"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/math-intrinsics": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/math-intrinsics/-/math-intrinsics-1.1.0.tgz",
@@ -8370,6 +8696,16 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/no-case": {
+      "version": "3.0.4",
+      "resolved": "https://registry.npmjs.org/no-case/-/no-case-3.0.4.tgz",
+      "integrity": "sha512-fgAN3jGAh+RoxUGZHTSOLJIqUc2wmoBwGR4tbpNAKmmovFoWq0OdRkb0VkldReO2a2iBT/OEulG9XSUc10r3zg==",
+      "license": "MIT",
+      "dependencies": {
+        "lower-case": "^2.0.2",
+        "tslib": "^2.0.3"
+      }
+    },
     "node_modules/node-abort-controller": {
       "version": "3.1.1",
       "resolved": "https://registry.npmjs.org/node-abort-controller/-/node-abort-controller-3.1.1.tgz",
@@ -9103,6 +9439,16 @@
         "node": ">= 0.8"
       }
     },
+    "node_modules/react": {
+      "version": "19.1.0",
+      "resolved": "https://registry.npmjs.org/react/-/react-19.1.0.tgz",
+      "integrity": "sha512-FS+XFBNvn3GTAWq26joslQgWNoFu08F4kl0J4CgdNKADkdSGXQyTCnKteIAJy96Br6YbpEU1LSzV5dYtjMkMDg==",
+      "license": "MIT",
+      "peer": true,
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/react-is": {
       "version": "18.3.1",
       "resolved": "https://registry.npmjs.org/react-is/-/react-is-18.3.1.tgz",
@@ -9638,6 +9984,42 @@
         "node": ">=8"
       }
     },
+    "node_modules/snake-case": {
+      "version": "3.0.4",
+      "resolved": "https://registry.npmjs.org/snake-case/-/snake-case-3.0.4.tgz",
+      "integrity": "sha512-LAOh4z89bGQvl9pFfNF8V146i7o7/CqFPbqzYgP+yYzDIDeS9HaNFtXABamRW+AQzEVODcvE79ljJ+8a9YSdMg==",
+      "license": "MIT",
+      "dependencies": {
+        "dot-case": "^3.0.4",
+        "tslib": "^2.0.3"
+      }
+    },
+    "node_modules/snakecase-keys": {
+      "version": "8.0.1",
+      "resolved": "https://registry.npmjs.org/snakecase-keys/-/snakecase-keys-8.0.1.tgz",
+      "integrity": "sha512-Sj51kE1zC7zh6TDlNNz0/Jn1n5HiHdoQErxO8jLtnyrkJW/M5PrI7x05uDgY3BO7OUQYKCvmeMurW6BPUdwEOw==",
+      "license": "MIT",
+      "dependencies": {
+        "map-obj": "^4.1.0",
+        "snake-case": "^3.0.4",
+        "type-fest": "^4.15.0"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/snakecase-keys/node_modules/type-fest": {
+      "version": "4.39.1",
+      "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-4.39.1.tgz",
+      "integrity": "sha512-uW9qzd66uyHYxwyVBYiwS4Oi0qZyUqwjU+Oevr6ZogYiXt99EOYtwvzMSLw1c3lYo2HzJsep/NB23iEVEgjG/w==",
+      "license": "(MIT OR CC0-1.0)",
+      "engines": {
+        "node": ">=16"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/sort-keys": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/sort-keys/-/sort-keys-1.1.2.tgz",
@@ -9734,6 +10116,12 @@
         "node": ">= 0.8"
       }
     },
+    "node_modules/std-env": {
+      "version": "3.9.0",
+      "resolved": "https://registry.npmjs.org/std-env/-/std-env-3.9.0.tgz",
+      "integrity": "sha512-UGvjygr6F6tpH7o2qyqR6QYpwraIjKSdtzyBdyytFOHmPZY917kwdwLG0RbOjWOnKmnm3PeHjaoLLMie7kPLQw==",
+      "license": "MIT"
+    },
     "node_modules/streamsearch": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/streamsearch/-/streamsearch-1.1.0.tgz",
@@ -10048,6 +10436,19 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/swr": {
+      "version": "2.3.3",
+      "resolved": "https://registry.npmjs.org/swr/-/swr-2.3.3.tgz",
+      "integrity": "sha512-dshNvs3ExOqtZ6kJBaAsabhPdHyeY4P2cKwRCniDVifBMoG/SVI7tfLWqPXriVspf2Rg4tPzXJTnwaihIeFw2A==",
+      "license": "MIT",
+      "dependencies": {
+        "dequal": "^2.0.3",
+        "use-sync-external-store": "^1.4.0"
+      },
+      "peerDependencies": {
+        "react": "^16.11.0 || ^17.0.0 || ^18.0.0 || ^19.0.0"
+      }
+    },
     "node_modules/symbol-observable": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/symbol-observable/-/symbol-observable-4.0.0.tgz",
@@ -10772,6 +11173,15 @@
         "punycode": "^2.1.0"
       }
     },
+    "node_modules/use-sync-external-store": {
+      "version": "1.5.0",
+      "resolved": "https://registry.npmjs.org/use-sync-external-store/-/use-sync-external-store-1.5.0.tgz",
+      "integrity": "sha512-Rb46I4cGGVBmjamjphe8L/UnvJD+uPPtTkNvX5mZgqdbavhI4EbgIWJiIHXJ8bc/i9EQGPRh4DwEURJ552Do0A==",
+      "license": "MIT",
+      "peerDependencies": {
+        "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0"
+      }
+    },
     "node_modules/util-deprecate": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
@@ -10787,6 +11197,16 @@
         "node": ">= 0.4.0"
       }
     },
+    "node_modules/uuid": {
+      "version": "8.3.2",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz",
+      "integrity": "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg==",
+      "dev": true,
+      "license": "MIT",
+      "bin": {
+        "uuid": "dist/bin/uuid"
+      }
+    },
     "node_modules/v8-compile-cache-lib": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/v8-compile-cache-lib/-/v8-compile-cache-lib-3.0.1.tgz",
@@ -10809,6 +11229,15 @@
         "node": ">=10.12.0"
       }
     },
+    "node_modules/validator": {
+      "version": "13.15.0",
+      "resolved": "https://registry.npmjs.org/validator/-/validator-13.15.0.tgz",
+      "integrity": "sha512-36B2ryl4+oL5QxZ3AzD0t5SsMNGvTtQHpjgFO5tbNxfXbMFkY822ktCDe1MnlqV3301QQI9SLHDNJokDI+Z9pA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.10"
+      }
+    },
     "node_modules/vary": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
@@ -11187,6 +11616,13 @@
       "dev": true,
       "license": "ISC"
     },
+    "node_modules/xml": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/xml/-/xml-1.0.1.tgz",
+      "integrity": "sha512-huCv9IH9Tcf95zuYCsQraZtWnJvBtLVE0QHMOs8bWyZAFZNDcYjsPq1nEx8jKA9y+Beo9v+7OBPRisQTjinQMw==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/xtend": {
       "version": "4.0.2",
       "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
diff --git a/package.json b/package.json
index bd611c7..fb9f04e 100644
--- a/package.json
+++ b/package.json
@@ -21,9 +21,14 @@
     "test:ci": "jest --ci --coverage --reporters=default --reporters=jest-junit"
   },
   "dependencies": {
+    "@clerk/backend": "^1.26.0",
     "@nestjs/common": "^11.0.1",
+    "@nestjs/config": "^4.0.2",
     "@nestjs/core": "^11.0.1",
     "@nestjs/platform-express": "^11.0.1",
+    "class-transformer": "^0.5.1",
+    "class-validator": "^0.14.1",
+    "express": "^5.1.0",
     "reflect-metadata": "^0.2.2",
     "rxjs": "^7.8.1"
   },
diff --git a/src/app.controller.ts b/src/app.controller.ts
index cce879e..0c9889a 100644
--- a/src/app.controller.ts
+++ b/src/app.controller.ts
@@ -1,12 +1,15 @@
-import { Controller, Get } from '@nestjs/common';
+import { Controller, Get, Req, UseGuards } from '@nestjs/common';
 import { AppService } from './app.service';
+import { AuthGuard } from './auth/auth.guard';
+import type { Request } from 'express';
 
 @Controller()
 export class AppController {
   constructor(private readonly appService: AppService) {}
 
+  @UseGuards(AuthGuard)
   @Get()
-  getHello(): string {
-    return this.appService.getHello();
+  getHello(@Req() request: Request): string {
+    return this.appService.getHello(request);
   }
 }
diff --git a/src/app.module.ts b/src/app.module.ts
index 8662803..d8fca87 100644
--- a/src/app.module.ts
+++ b/src/app.module.ts
@@ -1,9 +1,11 @@
+import { ConfigModule } from '@nestjs/config';
 import { Module } from '@nestjs/common';
 import { AppController } from './app.controller';
 import { AppService } from './app.service';
+import { AuthModule } from './auth/auth.module';
 
 @Module({
-  imports: [],
+  imports: [ConfigModule.forRoot(), AuthModule],
   controllers: [AppController],
   providers: [AppService],
 })
diff --git a/src/app.service.ts b/src/app.service.ts
index 927d7cc..a4c5df1 100644
--- a/src/app.service.ts
+++ b/src/app.service.ts
@@ -1,8 +1,15 @@
 import { Injectable } from '@nestjs/common';
+import type { Request } from 'express';
+
+interface User {
+  id: string;
+  sessionId: string;
+}
 
 @Injectable()
 export class AppService {
-  getHello(): string {
-    return 'Hello World!';
+  getHello(request: Request): string {
+    const user = request['user'] as User;
+    return `Hello World! Your UserId is ${user.id}`;
   }
 }
diff --git a/src/auth/auth.controller.ts b/src/auth/auth.controller.ts
new file mode 100644
index 0000000..6f07dee
--- /dev/null
+++ b/src/auth/auth.controller.ts
@@ -0,0 +1,13 @@
+import { Controller, Post, Body } from '@nestjs/common';
+import { AuthService } from './auth.service';
+import { SignupDto } from './dto/signup.dto';
+
+@Controller('auth')
+export class AuthController {
+  constructor(private readonly authService: AuthService) {}
+
+  @Post('signup')
+  async signup(@Body() body: SignupDto) {
+    return this.authService.signup(body);
+  }
+}
diff --git a/src/auth/auth.guard.ts b/src/auth/auth.guard.ts
new file mode 100644
index 0000000..4a5ba85
--- /dev/null
+++ b/src/auth/auth.guard.ts
@@ -0,0 +1,43 @@
+import {
+  CanActivate,
+  ExecutionContext,
+  Injectable,
+  UnauthorizedException,
+} from '@nestjs/common';
+import { verifyToken } from '@clerk/backend';
+import type { Request } from 'express';
+
+@Injectable()
+export class AuthGuard implements CanActivate {
+  async canActivate(context: ExecutionContext): Promise<boolean> {
+    const request: Request = context.switchToHttp().getRequest();
+    const token = this.extractTokenFromHeader(request);
+
+    if (!token) {
+      throw new UnauthorizedException('Token ausente');
+    }
+
+    try {
+      console.log('Verificando token:', token);
+      const { sub: userId, sid: sessionId } = await verifyToken(token, {
+        secretKey: process.env.CLERK_SECRET_KEY,
+      });
+
+      request['user'] = {
+        id: userId,
+        sessionId,
+      };
+
+      return true;
+    } catch (e) {
+      console.log(e);
+      throw new UnauthorizedException('Token inválido ou expirado');
+    }
+  }
+
+  private extractTokenFromHeader(request: Request): string | undefined {
+    const [type, token] = request.headers.authorization?.split(' ') ?? [];
+
+    return type === 'Bearer' ? token : undefined;
+  }
+}
diff --git a/src/auth/auth.module.ts b/src/auth/auth.module.ts
new file mode 100644
index 0000000..03810e7
--- /dev/null
+++ b/src/auth/auth.module.ts
@@ -0,0 +1,10 @@
+import { Module } from '@nestjs/common';
+import { AuthController } from './auth.controller';
+import { AuthService } from './auth.service';
+
+@Module({
+  imports: [],
+  controllers: [AuthController],
+  providers: [AuthService],
+})
+export class AuthModule {}
diff --git a/src/auth/auth.service.ts b/src/auth/auth.service.ts
new file mode 100644
index 0000000..0b8ebdf
--- /dev/null
+++ b/src/auth/auth.service.ts
@@ -0,0 +1,48 @@
+import { Injectable } from '@nestjs/common';
+import { createClerkClient } from '@clerk/backend';
+import { SignupDto } from './dto/signup.dto';
+
+@Injectable()
+export class AuthService {
+  private clerk = createClerkClient({
+    secretKey: process.env.CLERK_SECRET_KEY,
+  });
+
+  async signup({
+    registrationNumber,
+    email,
+    password,
+    firstName,
+    lastName,
+  }: SignupDto) {
+    try {
+      const user = await this.clerk.users.createUser({
+        username: `m-${registrationNumber}`,
+        emailAddress: [email],
+        password,
+        firstName,
+        lastName,
+      });
+
+      return {
+        success: true,
+        message: 'Cadastro realizado com sucesso',
+        data: {
+          user: {
+            id: user.id,
+            email: user.emailAddresses[0].emailAddress,
+            firstName: user.firstName,
+            lastName: user.lastName,
+            registrationNumber: user.username,
+          },
+        },
+      };
+    } catch (error) {
+      return {
+        success: false,
+        message: 'Erro ao realizar o cadastro',
+        error: error as Error,
+      };
+    }
+  }
+}
diff --git a/src/auth/dto/signup.dto.ts b/src/auth/dto/signup.dto.ts
new file mode 100644
index 0000000..2e64c3f
--- /dev/null
+++ b/src/auth/dto/signup.dto.ts
@@ -0,0 +1,24 @@
+import { IsEmail, IsNotEmpty, IsNumberString, Matches } from 'class-validator';
+
+export class SignupDto {
+  @IsNotEmpty()
+  @IsNumberString()
+  registrationNumber: string;
+
+  @IsNotEmpty()
+  @IsEmail()
+  email: string;
+
+  @IsNotEmpty()
+  @Matches(/^(?=.*[A-Za-z])(?=.*\d)(?=.*[@$!%*?&])[A-Za-z\d@$!%*?&]{8,}$/, {
+    message:
+      'A senha deve conter pelo menos uma letra, um número e um caractere especial',
+  })
+  password: string;
+
+  @IsNotEmpty()
+  firstName: string;
+
+  @IsNotEmpty()
+  lastName: string;
+}
diff --git a/src/main.ts b/src/main.ts
index f76bc8d..adf794c 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -1,8 +1,19 @@
 import { NestFactory } from '@nestjs/core';
 import { AppModule } from './app.module';
+import { ValidationPipe } from '@nestjs/common';
 
 async function bootstrap() {
   const app = await NestFactory.create(AppModule);
+
+  app.useGlobalPipes(
+    new ValidationPipe({
+      transform: true,
+      whitelist: true,
+      forbidNonWhitelisted: true,
+    }),
+  );
+
   await app.listen(process.env.PORT ?? 3000);
 }
+
 bootstrap();