A basic Python script which returns all GitHub repos and their forks based on a search query. Not my finest code, I wrote it in about 1m.

github_scraper.py

# written by mov-ebx on github
import requests

def scan(query):
    def search_repositories(query):
        url = f'https://api.github.com/search/repositories?q={query.replace(" ", "+")}'
        response = requests.get(url)
        if response.status_code != 200:
            raise Exception(f'Failed to search repositories: {response.status_code}')
        return response.json()['items']

    def get_forks(full_name):
        owner, repo = full_name.split('/')[0], full_name.split('/')[1]
        url = f'https://api.github.com/repos/{owner}/{repo}/forks'
        response = requests.get(url)
        if response.status_code != 200:
            raise Exception(f'Failed to get forks: {response.status_code}')
        return response.json()

    def append_with_forks(repo):
        repos.append(repo['full_name'])
        if repo['forks_count'] > 1:
            for fork in get_forks(repo['full_name']):
                append_with_forks(fork)

    to_scan, repos = search_repositories(query), []
    for repo in to_scan:
        append_with_forks(repo)
    return [*set(repos)]

if __name__ == '__main__':
    print(scan(input('repo you want to search: ')))