diff --git a/.github/workflows/e2e-tests.yml b/.github/workflows/e2e-tests.yml
index 112c09f..e2490f9 100644
--- a/.github/workflows/e2e-tests.yml
+++ b/.github/workflows/e2e-tests.yml
@@ -29,6 +29,11 @@ jobs:
                         test-dir: tests-e2e/jira/
                         script: |
                             diff <(vendor/bin/phpstan analyse --error-format=raw --no-progress | sed "s|$(pwd)/||") expected-errors.txt
+                    -   os: ubuntu-latest
+                        php-version: '8.2'
+                        test-dir: tests-e2e/youtrack/
+                        script: |
+                            diff <(vendor/bin/phpstan analyse --error-format=raw --no-progress | sed "s|$(pwd)/||") expected-errors.txt
 
         steps:
             -   name: Checkout
diff --git a/README.md b/README.md
index d228ad2..cdaf66a 100644
--- a/README.md
+++ b/README.md
@@ -182,7 +182,7 @@ Reference these virtual packages like any other package in your todo-comments:
 Optionally you can configure this extension to analyze your comments with issue tracker ticket keys.
 The extension fetches issue tracker API for issue status. If the remote issue is resolved, the comment will be reported.
 
-Currently, Jira and GitHub are supported.
+Currently, Jira, GitHub and YouTrack are supported.
 
 This feature is disabled by default. To enable it, you must set `ticket.enabled` parameter to `true`.
 You also need to set these parameters:
@@ -222,7 +222,7 @@ parameters:
                 # path to a file containing Jira credentials.
                 # see below for possible formats.
                 # if credentials parameter is not empty, it will be used instead of this file.
-                # this file must not be commited into the repository!
+                # this file must not be committed into the repository!
                 credentialsFilePath: .secrets/jira-credentials.txt
 
             github:
@@ -240,6 +240,19 @@ parameters:
                 # if credentials parameter is not empty, it will be used instead of this file.
                 # this file must not be committed into the repository!
                 credentialsFilePath: null
+
+            youtrack:
+                # e.g. https://your-company.youtrack.cloud
+                server: https://acme.youtrack.cloud
+
+                # YouTrack permanent token
+                # if this value is empty, credentials file will be used instead.
+                credentials: %env.YOUTRACK_TOKEN%
+
+                # path to a file containing a YouTrack permanent token
+                # if credentials parameter is not empty, it will be used instead of this file.
+                # this file must not be committed into the repository!
+                credentialsFilePath: .secrets/youtrack-credentials.txt
 ```
 
 #### Jira Credentials
diff --git a/extension.neon b/extension.neon
index 63a4891..7f44ebd 100644
--- a/extension.neon
+++ b/extension.neon
@@ -7,7 +7,7 @@ parametersSchema:
         virtualPackages: arrayOf(string(), string())
         ticket: structure([
             enabled: bool()
-            tracker: anyOf('jira', 'github')
+            tracker: anyOf('jira', 'github', 'youtrack')
             keyPrefixes: listOf(string())
             resolvedStatuses: listOf(string())
             jira: structure([
@@ -21,6 +21,11 @@ parametersSchema:
                 credentials: schema(string(), nullable())
                 credentialsFilePath: schema(string(), nullable())
             ])
+            youtrack: structure([
+                server: string()
+                credentials: schema(string(), nullable())
+                credentialsFilePath: schema(string(), nullable())
+            ])
         ])
     ])
 
@@ -90,6 +95,20 @@ parameters:
                 # this file must not be committed into the repository!
                 credentialsFilePath: null
 
+            youtrack:
+                # e.g. https://your-company.youtrack.cloud
+                server: https://youtrack.jetbrains.com
+
+                # see README for possible formats.
+                # if this value is empty, credentials file will be used instead.
+                credentials: null
+
+                # path to a file containing YouTrack credentials.
+                # see README for possible formats.
+                # if credentials parameter is not empty, it will be used instead of this file.
+                # this file must not be commited into the repository!
+                credentialsFilePath: null
+
 conditionalTags:
     staabm\PHPStanTodoBy\TodoByTicketRule:
         phpstan.rules.rule: %todo_by.ticket.enabled%
@@ -151,5 +170,12 @@ services:
             - %todo_by.ticket.jira.credentials%
             - %todo_by.ticket.jira.credentialsFilePath%
 
+    -
+        class: staabm\PHPStanTodoBy\utils\ticket\YouTrackTicketStatusFetcher
+        arguments:
+            - %todo_by.ticket.youtrack.server%
+            - %todo_by.ticket.youtrack.credentials%
+            - %todo_by.ticket.youtrack.credentialsFilePath%
+
     -
         class: staabm\PHPStanTodoBy\utils\HttpClient
diff --git a/src/utils/ticket/TicketRuleConfigurationFactory.php b/src/utils/ticket/TicketRuleConfigurationFactory.php
index 58c3c20..28ce792 100644
--- a/src/utils/ticket/TicketRuleConfigurationFactory.php
+++ b/src/utils/ticket/TicketRuleConfigurationFactory.php
@@ -45,6 +45,17 @@ public function create(): TicketRuleConfiguration
             );
         }
 
+        if ('youtrack' === $tracker) {
+            $fetcher = $this->container->getByType(YouTrackTicketStatusFetcher::class);
+
+            return new TicketRuleConfiguration(
+                $fetcher::getKeyPattern(),
+                ['resolved'],
+                $keyPrefixes,
+                $fetcher,
+            );
+        }
+
         throw new RuntimeException("Unsupported tracker type: $tracker");
     }
 }
diff --git a/src/utils/ticket/YouTrackTicketStatusFetcher.php b/src/utils/ticket/YouTrackTicketStatusFetcher.php
new file mode 100644
index 0000000..2797c7e
--- /dev/null
+++ b/src/utils/ticket/YouTrackTicketStatusFetcher.php
@@ -0,0 +1,87 @@
+<?php
+
+namespace staabm\PHPStanTodoBy\utils\ticket;
+
+use RuntimeException;
+use staabm\PHPStanTodoBy\utils\CredentialsHelper;
+use staabm\PHPStanTodoBy\utils\HttpClient;
+
+use function array_key_exists;
+use function is_array;
+
+final class YouTrackTicketStatusFetcher implements TicketStatusFetcher
+{
+    private string $host;
+    private ?string $authorizationHeader;
+
+    private HttpClient $httpClient;
+
+    /**
+     * @var array<string, ?string>
+     */
+    private array $cache;
+
+    public function __construct(string $host, ?string $credentials, ?string $credentialsFilePath, HttpClient $httpClient)
+    {
+        $credentials = CredentialsHelper::getCredentials($credentials, $credentialsFilePath);
+
+        $this->host = $host;
+        $this->authorizationHeader = $credentials ? self::createAuthorizationHeader($credentials) : null;
+
+        $this->cache = [];
+        $this->httpClient = $httpClient;
+    }
+
+    public function fetchTicketStatus(string $ticketKey): ?string
+    {
+        if (array_key_exists($ticketKey, $this->cache)) {
+            return $this->cache[$ticketKey];
+        }
+
+        $url = "{$this->host}/api/issues/$ticketKey?fields=resolved";
+        $headers = [];
+        if (null !== $this->authorizationHeader) {
+            $headers = [
+                "Authorization: $this->authorizationHeader",
+            ];
+        }
+
+        [$responseCode, $response] = $this->httpClient->get($url, $headers);
+
+        if (200 !== $responseCode) {
+            throw new RuntimeException("Could not fetch ticket's status from YouTrack with url $url");
+        }
+
+        $data = self::decodeAndValidateResponse($response);
+
+        return $this->cache[$ticketKey] = null === $data['resolved'] ? 'open' : 'resolved';
+    }
+
+    public static function getKeyPattern(): string
+    {
+        return '[A-Z0-9]+-\d+';
+    }
+
+    private static function createAuthorizationHeader(string $credentials): string
+    {
+        return "Bearer $credentials";
+    }
+
+    /** @return array{resolved: ?int} */
+    private static function decodeAndValidateResponse(string $body): array
+    {
+        $data = json_decode($body, true, 512, JSON_THROW_ON_ERROR);
+
+        if (!is_array($data) || !array_key_exists('resolved', $data)) {
+            self::throwInvalidResponse();
+        }
+
+        return $data;
+    }
+
+    /** @return never */
+    private static function throwInvalidResponse(): void
+    {
+        throw new RuntimeException('YouTrack returned invalid response body');
+    }
+}
diff --git a/tests-e2e/youtrack/.gitignore b/tests-e2e/youtrack/.gitignore
new file mode 100644
index 0000000..57872d0
--- /dev/null
+++ b/tests-e2e/youtrack/.gitignore
@@ -0,0 +1 @@
+/vendor/
diff --git a/tests-e2e/youtrack/composer.json b/tests-e2e/youtrack/composer.json
new file mode 100644
index 0000000..4bed15f
--- /dev/null
+++ b/tests-e2e/youtrack/composer.json
@@ -0,0 +1,11 @@
+{
+    "config": {
+        "allow-plugins": {
+            "phpstan/extension-installer": true
+        }
+    },
+    "require-dev": {
+        "phpstan/phpstan": "^1.10",
+        "phpstan/extension-installer": "^1.3"
+    }
+}
diff --git a/tests-e2e/youtrack/composer.lock b/tests-e2e/youtrack/composer.lock
new file mode 100644
index 0000000..a9df981
--- /dev/null
+++ b/tests-e2e/youtrack/composer.lock
@@ -0,0 +1,125 @@
+{
+    "_readme": [
+        "This file locks the dependencies of your project to a known state",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
+        "This file is @generated automatically"
+    ],
+    "content-hash": "70d13e8324066e0b24a0b737022ce64b",
+    "packages": [],
+    "packages-dev": [
+        {
+            "name": "phpstan/extension-installer",
+            "version": "1.3.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/phpstan/extension-installer.git",
+                "reference": "f45734bfb9984c6c56c4486b71230355f066a58a"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/phpstan/extension-installer/zipball/f45734bfb9984c6c56c4486b71230355f066a58a",
+                "reference": "f45734bfb9984c6c56c4486b71230355f066a58a",
+                "shasum": ""
+            },
+            "require": {
+                "composer-plugin-api": "^2.0",
+                "php": "^7.2 || ^8.0",
+                "phpstan/phpstan": "^1.9.0"
+            },
+            "require-dev": {
+                "composer/composer": "^2.0",
+                "php-parallel-lint/php-parallel-lint": "^1.2.0",
+                "phpstan/phpstan-strict-rules": "^0.11 || ^0.12 || ^1.0"
+            },
+            "type": "composer-plugin",
+            "extra": {
+                "class": "PHPStan\\ExtensionInstaller\\Plugin"
+            },
+            "autoload": {
+                "psr-4": {
+                    "PHPStan\\ExtensionInstaller\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "description": "Composer plugin for automatic installation of PHPStan extensions",
+            "support": {
+                "issues": "https://github.com/phpstan/extension-installer/issues",
+                "source": "https://github.com/phpstan/extension-installer/tree/1.3.1"
+            },
+            "time": "2023-05-24T08:59:17+00:00"
+        },
+        {
+            "name": "phpstan/phpstan",
+            "version": "1.10.54",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/phpstan/phpstan.git",
+                "reference": "3e25f279dada0adc14ffd7bad09af2e2fc3523bb"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/3e25f279dada0adc14ffd7bad09af2e2fc3523bb",
+                "reference": "3e25f279dada0adc14ffd7bad09af2e2fc3523bb",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.2|^8.0"
+            },
+            "conflict": {
+                "phpstan/phpstan-shim": "*"
+            },
+            "bin": [
+                "phpstan",
+                "phpstan.phar"
+            ],
+            "type": "library",
+            "autoload": {
+                "files": [
+                    "bootstrap.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "description": "PHPStan - PHP Static Analysis Tool",
+            "keywords": [
+                "dev",
+                "static analysis"
+            ],
+            "support": {
+                "docs": "https://phpstan.org/user-guide/getting-started",
+                "forum": "https://github.com/phpstan/phpstan/discussions",
+                "issues": "https://github.com/phpstan/phpstan/issues",
+                "security": "https://github.com/phpstan/phpstan/security/policy",
+                "source": "https://github.com/phpstan/phpstan-src"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/ondrejmirtes",
+                    "type": "github"
+                },
+                {
+                    "url": "https://github.com/phpstan",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/phpstan/phpstan",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2024-01-05T15:50:47+00:00"
+        }
+    ],
+    "aliases": [],
+    "minimum-stability": "stable",
+    "stability-flags": [],
+    "prefer-stable": false,
+    "prefer-lowest": false,
+    "platform": [],
+    "platform-dev": [],
+    "plugin-api-version": "2.6.0"
+}
diff --git a/tests-e2e/youtrack/expected-errors.txt b/tests-e2e/youtrack/expected-errors.txt
new file mode 100644
index 0000000..e63a414
--- /dev/null
+++ b/tests-e2e/youtrack/expected-errors.txt
@@ -0,0 +1 @@
+src/tickets.php:3:Should have been resolved in WI-1: fix me.
diff --git a/tests-e2e/youtrack/phpstan.neon b/tests-e2e/youtrack/phpstan.neon
new file mode 100644
index 0000000..85959c0
--- /dev/null
+++ b/tests-e2e/youtrack/phpstan.neon
@@ -0,0 +1,12 @@
+parameters:
+  level: max
+  paths:
+    - src/
+  todo_by:
+    ticket:
+        enabled: true
+        tracker: youtrack
+        keyPrefixes:
+            - WI
+        jira:
+            server: https://youtrack.jetbrains.com/
diff --git a/tests-e2e/youtrack/src/tickets.php b/tests-e2e/youtrack/src/tickets.php
new file mode 100644
index 0000000..eedd919
--- /dev/null
+++ b/tests-e2e/youtrack/src/tickets.php
@@ -0,0 +1,3 @@
+<?php
+
+// TODO: WI-1 fix me