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If you use Claude a lot, sites without APIs are genuinely annoying. Using Claude Code and the Chrome extension, I built a reusable skill that turns Substack into a programmable data source. Claude finds the internal API, handles authentication on its own, and fetches data in parallel once it's set up. Took about 15 minutes, and the same approach works for any site without a public AP
Timestamps:
00:00 The problem
00:17 Setup
00:46 Finding the internal API
02:04 Authentication
02:59 Extracting the cookie
04:05 Building the skill
06:02 Cookie automation
07:13 Pulling 30 posts
07:33 Fetching article text
09:14 Summarizing an article
09:59 Scatter plot analysis
11:06 Any site, same approach
Connect with me:
Website ► https://hamel.dev
LinkedIn ► https://www.linkedin.com/in/hamelhusain/
Twitter/X ► https://x.com/hamelhusain
Instagram ► https://www.instagram.com/hamelsmu/
Tik Tok ► https://www.tiktok.com/@hamel_husain
