Herdr, a runtime built for coding agents, has raised a $6 million seed round led by Bessemer Venture Partners, with participation from Y Combinator and e2vc. Shopify CEO Tobi Lütke, Cloudflare CTO Dane Knecht, and fal co-founder Görkem Yurtseven also joined the round. The project is still a one-person effort developed by Can Celik.
The company says Herdr works like a tmux built for coding agents, letting users run tools such as Claude Code, Codex, and Cursor Agent CLI in a unified environment while keeping them active in the background. Agents can continue running even if the terminal closes or an SSH session drops.
About four months after launch, Herdr had recorded more than 36,000 GitHub stars, 780,000 downloads, and more than 1,000 community-built plugins and related projects at the time of financing. Celik plans to use the new capital mainly to hire and form a small team focused on runtime stability, performance, and extensibility. The project also said its core runtime will remain open source under Apache 2.0 and will not move to closed source after the fundraise. A day before the financing news, Herdr launched multi-machine management, allowing users to manage agents across a local machine, servers, and a Mac mini from a single terminal.
Herdr, a runtime designed for coding agents, has raised a $6 million seed round led by Bessemer Venture Partners, with Y Combinator and e2vc participating. Shopify CEO Tobi Lütke, Cloudflare CTO Dane Knecht, and fal co-founder Görkem Yurtseven were also among the investors.
The project is still a one-person team built by Can Celik. Herdr is described as a tmux-style environment for coding agents, allowing users to run Claude Code, Codex, Cursor Agent CLI, and similar tools in one place while managing background execution, switching sessions, and checking status. Agents can keep running even if the terminal is closed or an SSH connection is interrupted.
Roughly four months after launch, Herdr had already reached more than 36,000 GitHub stars and 780,000 downloads, while the community had built more than 1,000 plugins and related projects around it.
The company said the new funding will mainly go toward hiring. Celik is preparing to build a small team and continue work on runtime stability, performance, and extensibility. Herdr also said its core runtime environment will remain open source under the Apache 2.0 license and will not become closed source after the financing.
A day before the funding announcement, Herdr rolled out multi-machine management, letting users manage agents running on a local machine, servers, and a Mac mini from a single terminal.
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