Hacker News front pageJul 9, 2026, 23:45 UTC+8

Frigade reverse-engineers web apps into agent-callable tools

Show HN: Reverse-engineering web apps into agent tools

Frigade built a browser agent that signs into web apps, watches their internal API calls, and auto-generates authenticated tool recipes with schemas. LLMs can then use these recipes to act inside the app without custom code, and recipes self-update when APIs change. The post notes GraphQL was the hardest API to standardize. Only demo links and a HN post are available; no pricing or launch date is disclosed.

Why it matters: Fresh idea — not another chat wrapper. Auto-sniffing internal APIs into self-updating tool recipes has direct value for agent builders. But it's a Show HN demo with no third-party validation or scale data, so it's a prototype worth watching, not a must-cover.

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I clicked because this solves a real grunt-work problem: every SaaS has its own auth quirks and API shapes, so wiring an agent to call them directly means writing a ton of glue. Frigade's approach is to let a logged-in browser agent watch the app's own requests and auto-capture endpoints, auth methods, and schemas into reusable recipes that LLMs can invoke. Recipes self-update when the app changes.

Right now it's just a HN post with demo links—no pricing, no launch date. The Jira, Spotify, and HN demos look like they actually work. They called out GraphQL as the hardest to standardize, which is honest and tells you this isn't a magic bullet.

I'd treat this as a lightweight API adaptation layer for agents, not an MCP replacement. If they publish a compatibility list and latency numbers later, the picture gets clearer.

Source: Hacker News front page · news.ycombinator.com
Published: Jul 9, 2026, 23:45 UTC+8 · Jul 9, 2026