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Developers don't run one coding agent anymore. They run fleets of them — for hours, sometimes days — across laptops, servers, and sandboxes.
herdr is a Y Combinator company in the Fall 2026 batch. Its directory entry describes it as: building the open agent runtime. The founder listed is Can Celik (Founder/CEO) (Y Combinator directory entry, August 6, 2026).
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New accelerator entry · 2026-08-06 · the record
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Developers don't run one coding agent anymore. They run fleets of them — for hours, sometimes days — across laptops, servers, and sandboxes. Keeping track of that work is the new bottleneck: which agent is blocked, which one finished, which terminal is it in, and why did everything die when the laptop closed. Herdr is the open-source home for that work. A background server owns the agents' terminal sessions on each machine, so the work survives disconnects, closed lids, and dropped SSH. Herdr detects each agent and turns the chaos into an attention queue — working, blocked, done, across every project — so you look only when an agent needs you. Every client is just a view: the bundled terminal UI, SSH from another machine, your phone. Close one, open another; the work never stops. Software can drive it too: a CLI, a socket API, and a plugin marketplace that passed 500 community plugins in its first month. The runtime is Apache-2.0 and stays open. Four months after launch: 25k GitHub stars, 340k downloads.
Read from the page's own HTML and response headers on 10 September 2026, at https://herdr.dev/. Each badge matched a string the site serves about itself — hover one to see which. Nothing here is a traffic, ranking or revenue figure: those cannot be read off a page and are not claimed.
Checked away from the directory entry. What is below does not come from the company's Y Combinator page.
Herdr is the runtime your coding agents live on. It holds real terminals open on your laptop, your desktop or a box you rent, so the work survives the lid closing — and you can attach again from anything with a keyboard.
The title and description the site itself served, answering 200. Not a cached copy and not the company's directory entry — what was live when we asked.
Founders, titles and bios as the company published them. Photographs are our own copies of the ones on that record, so they do not break when the original link expires.
No investor is drawn from a Form D — the form states how many invested and never who. The one investor on this graph is named because a batch has exactly one.
Example from a real report (our sample on Target): “Target eliminated approximately 1,800 corporate positions, with around 1,000 employees receiving layoff notices and the remainder accounted for by eliminating open roles.” Source: NBC News
A Full Report on herdr: verified, sourced, every claim cited, ready in a few minutes. See pricing.
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