diff --git a/README.md b/README.md
index 7e74659..114ffe7 100644
--- a/README.md
+++ b/README.md
@@ -83,11 +83,11 @@ from datetime import timedelta
 import asyncio
 
 # Load repository information (from collector)
-repo_info = await collect_all(
+repo_info = asyncio.run(collect_all(
     pkt_type='debian',
     pkt_name='xz-utils',
     repo_name='tukaani-project/xz',
-)
+))
 # Create evaluator
 evaluator = HSBRiskEvaluator(repo_info)
 
diff --git a/src/example/dependencies_collect.py b/src/example/dependencies_collect.py
new file mode 100644
index 0000000..0ed095e
--- /dev/null
+++ b/src/example/dependencies_collect.py
@@ -0,0 +1,79 @@
+#!/usr/bin/env python3
+from hsbriskevaluator.dep_collector.deps_dev_collector import DepsDevCollector
+
+def main():
+    """Demonstrate usage of the DepsDevCollector"""
+    
+    # Example 1: Collect NPM package dependencies
+    print("=== NPM Package Example ===")
+    npm_collector = DepsDevCollector(platform="npm")
+    result = npm_collector.collect("lodash")
+    
+    print(f"Package: {result['package_name']}")
+    print(f"Platform: {result['platform']}")
+    print(f"Version: {result['version']}")
+    print(f"Total dependencies: {len(result['dependencies'])}")
+    
+    if result['error']:
+        print(f"Error: {result['error']}")
+    else:
+        # Show direct vs indirect dependencies
+        direct_deps = [dep for dep in result['dependencies'] if dep['relation'] == 'DIRECT']
+        indirect_deps = [dep for dep in result['dependencies'] if dep['relation'] == 'INDIRECT']
+        
+        print(f"Direct dependencies: {len(direct_deps)}")
+        print(f"Indirect dependencies: {len(indirect_deps)}")
+        
+        if direct_deps:
+            print("\nDirect dependencies:")
+            for dep in direct_deps[:3]:  # Show first 3
+                print(f"  - {dep['name']}@{dep['version']} (requirement: {dep['requirement']})")
+    
+    print("\n" + "="*50 + "\n")
+    
+    # Example 2: Collect PyPI package dependencies
+    print("=== PyPI Package Example ===")
+    pypi_collector = DepsDevCollector(platform="pypi")
+    result = pypi_collector.collect("flask")
+    
+    print(f"Package: {result['package_name']}")
+    print(f"Platform: {result['platform']}")
+    print(f"Version: {result['version']}")
+    print(f"Total dependencies: {len(result['dependencies'])}")
+    
+    if result['error']:
+        print(f"Error: {result['error']}")
+    else:
+        # Show direct vs indirect dependencies
+        direct_deps = [dep for dep in result['dependencies'] if dep['relation'] == 'DIRECT']
+        indirect_deps = [dep for dep in result['dependencies'] if dep['relation'] == 'INDIRECT']
+        
+        print(f"Direct dependencies: {len(direct_deps)}")
+        print(f"Indirect dependencies: {len(indirect_deps)}")
+        
+        if direct_deps:
+            print("\nDirect dependencies:")
+            for dep in direct_deps[:3]:  # Show first 3
+                print(f"  - {dep['name']}@{dep['version']} (requirement: {dep['requirement']})")
+    
+    print("\n" + "="*50 + "\n")
+    
+    # Example 3: Different platforms
+    print("=== Multiple Platform Support ===")
+    platforms = ["npm", "pypi", "maven", "cargo"]
+    packages = ["express", "django", "junit", "serde"]
+    
+    for platform, package in zip(platforms, packages):
+        try:
+            collector = DepsDevCollector(platform=platform)
+            result = collector.collect(package)
+            
+            status = "✓" if not result['error'] else "✗"
+            dep_count = len(result['dependencies'])
+            print(f"{status} {platform.upper()}: {package} - {dep_count} dependencies")
+            
+        except Exception as e:
+            print(f"✗ {platform.upper()}: {package} - Error: {e}")
+
+if __name__ == "__main__":
+    main()
diff --git a/src/example/evaluate_xz.py b/src/example/evaluate_xz.py
new file mode 100644
index 0000000..0735fd3
--- /dev/null
+++ b/src/example/evaluate_xz.py
@@ -0,0 +1,19 @@
+from hsbriskevaluator.evaluator import HSBRiskEvaluator
+from hsbriskevaluator.collector.repo_info import RepoInfo
+from hsbriskevaluator.collector import collect_all
+from datetime import timedelta
+import asyncio
+
+# Load repository information (from collector)
+repo_info = asyncio.run(collect_all(
+    pkt_type='debian',
+    pkt_name='xz-utils',
+    repo_name='tukaani-project/xz',
+))
+# Create evaluator
+evaluator = HSBRiskEvaluator(repo_info)
+
+# Run evaluation
+result = asyncio.run(evaluator.evaluate())
+
+print(result)
diff --git a/src/hsbriskevaluator/dep_collector/base.py b/src/hsbriskevaluator/dep_collector/base.py
new file mode 100644
index 0000000..7d43dd4
--- /dev/null
+++ b/src/hsbriskevaluator/dep_collector/base.py
@@ -0,0 +1,21 @@
+"""
+collect dependencies recursively for a specific package
+"""
+from typing import Dict
+
+class BaseDepCollector():
+    platform: str 
+    def __init__(self):
+        pass
+
+    def collect(self, package_name: str) -> Dict:
+        """
+        Collect dependency information for a package
+        
+        Args:
+            package_name: Name of the package to collect dependencies for
+            
+        Returns:
+            Dict containing dependency information
+        """
+        raise NotImplementedError("Subclasses must implement collect method")
diff --git a/src/hsbriskevaluator/dep_collector/deps_dev_collector.py b/src/hsbriskevaluator/dep_collector/deps_dev_collector.py
new file mode 100644
index 0000000..6f06cdd
--- /dev/null
+++ b/src/hsbriskevaluator/dep_collector/deps_dev_collector.py
@@ -0,0 +1,233 @@
+import requests
+import logging
+from typing import Dict, List, Optional
+from urllib.parse import quote
+from .base import BaseDepCollector
+
+logger = logging.getLogger(__name__)
+
+
+class DepsDevCollector(BaseDepCollector):
+    """
+    Dependency collector that queries dependency information through deps.dev API
+    """
+    
+    def __init__(self, platform):
+        """
+        Initialize the deps.dev collector
+        
+        Args:
+            platform: The package management system (GO, RUBYGEMS, NPM, CARGO, MAVEN, PYPI, NUGET)
+        """
+        super().__init__()
+        self.platform = platform.upper()
+        self.base_url = "https://api.deps.dev"
+        self.session = requests.Session()
+        self.session.headers.update({
+            'User-Agent': 'HSBRiskEvaluator/1.0'
+        })
+        
+        # Validate platform
+        valid_platforms = {"GO", "RUBYGEMS", "NPM", "CARGO", "MAVEN", "PYPI", "NUGET"}
+        if self.platform not in valid_platforms:
+            raise ValueError(f"Platform {self.platform} not supported. Valid platforms: {valid_platforms}")
+    
+    def _make_request(self, url: str) -> Optional[Dict]:
+        """
+        Make HTTP request to deps.dev API with error handling
+        
+        Args:
+            url: The API endpoint URL
+            
+        Returns:
+            JSON response as dict or None if request failed
+        """
+        try:
+            response = self.session.get(url, timeout=30)
+            response.raise_for_status()
+            return response.json()
+        except requests.exceptions.RequestException as e:
+            logger.error(f"Request failed for {url}: {e}")
+            return None
+        except ValueError as e:
+            logger.error(f"Failed to parse JSON response from {url}: {e}")
+            return None
+    
+    def _get_package_info(self, package_name: str) -> Optional[Dict]:
+        """
+        Get package information including available versions
+        
+        Args:
+            package_name: Name of the package
+            
+        Returns:
+            Package information dict or None if not found
+        """
+        encoded_name = quote(package_name, safe='')
+        url = f"{self.base_url}/v3/systems/{self.platform}/packages/{encoded_name}"
+        
+        logger.info(f"Fetching package info for {package_name} from {url}")
+        return self._make_request(url)
+
+
+    def _get_sorted_versions(self, package_info: Dict) -> List[str]:
+        """
+        Get all versions sorted by publication date (newest first)
+        
+        Args:
+            package_info: Package information from GetPackage API
+            
+        Returns:
+            List of version strings sorted by publication date
+        """
+        if not package_info or 'versions' not in package_info:
+            return []
+        
+        versions = package_info['versions']
+        if not versions:
+            return []
+        
+        # Sort by publishedAt date (newest first), fallback to version order
+        def sort_key(version):
+            published_at = version.get('publishedAt', '')
+            return published_at if published_at else '0'
+        
+        sorted_versions = sorted(versions, key=sort_key, reverse=True)
+        return [v['versionKey']['version'] for v in sorted_versions]
+    
+    def _get_dependencies(self, package_name: str, version: str) -> Optional[Dict]:
+        """
+        Get dependency information for a specific package version
+        
+        Args:
+            package_name: Name of the package
+            version: Version of the package
+            
+        Returns:
+            Dependency information dict or None if not found
+        """
+        encoded_name = quote(package_name, safe='')
+        encoded_version = quote(version, safe='')
+        url = f"{self.base_url}/v3/systems/{self.platform}/packages/{encoded_name}/versions/{encoded_version}:dependencies"
+        
+        logger.info(f"Fetching dependencies for {package_name}@{version} from {url}")
+        return self._make_request(url)
+    
+    def _extract_all_dependencies(self, dep_info: Dict) -> List[Dict]:
+        """
+        Extract all dependencies (direct and indirect) from dependency graph
+        
+        Args:
+            dep_info: Dependency information from GetDependencies API
+            
+        Returns:
+            List of all dependency dicts with name, version, relation, and bundled info
+        """
+        if not dep_info or 'nodes' not in dep_info:
+            return []
+        
+        nodes = dep_info['nodes']
+        
+        if not nodes:
+            return []
+        
+        # Extract all dependencies except the root node (first node)
+        all_deps = []
+        
+        for i, node in enumerate(nodes):
+            # Skip the root node (index 0)
+            if i == 0:
+                continue
+                
+            version_key = node.get('versionKey', {})
+            relation = node.get('relation', 'UNKNOWN')
+            
+            # Find the requirement for this dependency
+            requirement = ''
+            if 'edges' in dep_info:
+                for edge in dep_info['edges']:
+                    if edge.get('toNode') == i:
+                        requirement = edge.get('requirement', '')
+                        break
+            
+            all_deps.append({
+                'name': version_key.get('name', ''),
+                'version': version_key.get('version', ''),
+                'relation': relation,
+                'requirement': requirement,
+                'bundled': node.get('bundled', False)
+            })
+        
+        return all_deps
+    
+    def collect(self, package_name: str) -> Dict:
+        """
+        Collect dependency information for a package
+        
+        Args:
+            package_name: Name of the package to collect dependencies for
+            
+        Returns:
+            Dict containing dependency information with structure:
+            {
+                'package_name': str,
+                'platform': str,
+                'version': str,
+                'dependencies': List[Dict],
+                'error': Optional[str]
+            }
+        """
+        result = {
+            'package_name': package_name,
+            'platform': self.platform,
+            'version': None,
+            'dependencies': [],
+            'error': None
+        }
+        
+        try:
+            # Step 1: Get package information
+            package_info = self._get_package_info(package_name)
+            if not package_info:
+                result['error'] = f"Package {package_name} not found"
+                return result
+            
+            # Step 2: Get sorted versions (newest first)
+            versions = self._get_sorted_versions(package_info)
+            if not versions:
+                result['error'] = f"No versions found for package {package_name}"
+                return result
+            
+            # Step 3: Try to get dependencies, starting with latest version
+            dep_info = None
+            used_version = None
+            
+            for version in versions:
+                logger.info(f"Trying to get dependencies for {package_name}@{version}")
+                dep_info = self._get_dependencies(package_name, version)
+                
+                if dep_info and 'nodes' in dep_info:
+                    # Check if we have meaningful dependency data
+                    if len(dep_info.get('nodes', [])) > 1 or dep_info.get('edges'):
+                        used_version = version
+                        break
+                    else:
+                        logger.info(f"No dependency data found for {package_name}@{version}, trying next version")
+                else:
+                    logger.info(f"Failed to get dependency info for {package_name}@{version}, trying next version")
+            
+            if not dep_info or not used_version:
+                result['error'] = f"No dependency information available for any version of {package_name}"
+                return result
+            
+            # Step 4: Extract all dependencies
+            result['version'] = used_version
+            result['dependencies'] = self._extract_all_dependencies(dep_info)
+            
+            logger.info(f"Successfully collected {len(result['dependencies'])} dependencies for {package_name}@{used_version}")
+            
+        except Exception as e:
+            logger.error(f"Error collecting dependencies for {package_name}: {e}")
+            result['error'] = str(e)
+        
+        return result