Founder of a listed tool
Ruben Fiszel
Founder, Windmill, named behind the Windmill API + MCP listing on Anchor Terminal.
What Ruben builds
Windmill API + MCP C · Workflow automation
Code-first engine for scripts, flows and internal apps in 20+ languages, written in Rust, on Windmill Cloud or self-hosted.
Founder, Windmill, researched 28 October 2026 · the people behind it
Backed by
Y Combinator Gradient Ventures Bessemer Venture Partners
Questions
Who is Ruben Fiszel?
Ruben Fiszel founded Windmill, an open-source platform that turns scripts into internal apps and workflows, which joined Y Combinator in summer 2022. He earlier built distributed systems at Palantir, researched compilers at Stanford and ran engineering at a multi-party computation startup.
What does Windmill Labs make?
Anchor Terminal lists Windmill API + MCP from Windmill Labs. Code-first engine for scripts, flows and internal apps in 20+ languages, written in Rust, on Windmill Cloud or self-hosted.
Who has invested in Windmill Labs?
The sources our research read name Y Combinator, Gradient Ventures and Bessemer Venture Partners.
How are Ruben's tools graded?
Windmill API + MCP is graded C, 56 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.
These are the people building the tools we list, named for their public role in the company or project behind a listing, from public pages, with the date it was researched. They don't work for Anchor Terminal (our own team is on the about page). We show public roles, public profiles and what the listing pages show, nothing private. To correct something, send an about or a photo, or have a page removed, write to privacy@anchorterminal.com.