--- title: "Derive Client - Air Market" description: "You keep scripting the same website, and every run means opening a real browser to click through it again. It watches the traffic your browser exchanges with the site, then hands you a small program…" canonical: "https://airmarket.ai/app/derive-client" --- [Air Market](/) / [Developer Tools](/category/devtools) / Derive Client Skill by [Vercel Labs](/@vercel-labs) # Derive Client Record a site once, then call its API without the browser ## What this does You keep scripting the same website, and every run means opening a real browser to click through it again. It watches the traffic your browser exchanges with the site, then hands you a small program that talks to the site directly. Reach for it when you want a command-line tool built around a site, or when driving a browser has become the most tedious part of a routine job. ### Top 3 things it does for you - Record a site's browser traffic to map its internal API - Generate a standalone client or CLI from that recording - Run repeat automations with direct calls instead of the browser ## Information **Derive Client at a glance** | | | | --- | --- | | Kind | Skill | | Publisher | [Vercel Labs](/@vercel-labs) | | Category | [Developer Tools](/category/devtools) | | Works with | Agent Skills - an open standard supported by 40+ agents | | Size | 5 KB | | Licence | Apache-2.0 | | Repository | [vercel-labs/agent-browser](https://github.com/vercel-labs/agent-browser/tree/81c336c1c20b80ac648e0416a7b6e0c0ae7878bb/skill-data/derive-client) | | GitHub stars | 41,232 (as of Nov 2026) | | Installs | 102, counted by skills.sh (Nov 2026) | ## Security report **Verified.** AIR scanned this exact version of Derive Client and flagged nothing. AIR's verdict: **safe**. **What Derive Client's check was run against** | | | | --- | --- | | Commit | 81c336c1c20b80ac648e0416a7b6e0c0ae7878bb | | Content hash | 46b0968f8a81d6414a8d0cbbdf85b1da2c14094b2d56a89885ee07dcd7044aa7 | | Files read | [Browse the files at this exact commit](https://github.com/vercel-labs/agent-browser/blob/81c336c1c20b80ac648e0416a7b6e0c0ae7878bb/skill-data/derive-client/SKILL.md) | A scan is named by the exact content it read, not by a version number. A different version is a different artifact, and nothing here applies to a version AIR has not scanned. [Read the full security report for Derive Client](/security/derive-client) ## About Derive Client Give it a site you already use in the browser and it records the traffic that site generates, captured as a HAR file. From that recording it reverse-engineers the site's internal API: which endpoints there are and how to call them. It then writes a standalone client or a command-line tool that hits those endpoints directly. Once the recording exists, the browser drops out of the picture entirely. Reach for it when someone asks to derive a client for a site, build a CLI around one, or turn a site into an API. It also fits the case where the same site gets automated again and again, and calling it directly beats driving the browser through identical steps every time. ## What's inside - SKILL.md - instructions ## Questions ### Is Derive Client safe to install? AIR scanned this exact version of Derive Client and flagged nothing. AIR's verdict: safe. The verdict is named by the content that was read, at commit 81c336c1c20b, so it cannot drift onto a version nobody scanned. The full report is at https://airmarket.ai/security/derive-client. ### How do I install Derive Client? Open https://airmarket.ai/app/derive-client on Air Market and use the install action: Air Market hands Claude a prompt naming this exact skill, and Claude sets it up. Source, pinned to the exact commit this listing describes: https://github.com/vercel-labs/agent-browser/tree/81c336c1c20b80ac648e0416a7b6e0c0ae7878bb/skill-data/derive-client. Install from that link, not the branch. ## Related on Air Market - [More Developer Tools listings](/category/devtools) - [Everything by Vercel Labs](/@vercel-labs) --- Canonical URL: