Startup
Stakpak
Open-source agent that lives on your machines 24/7 and keeps your apps running
Stakpak is an open-source DevOps agent written in Rust that runs on your own machines around the clock to keep apps running, contacting a human only when needed. It is positioned as offering the upside of a PaaS without lock-in. Its website states that Stakpak is joining Vercel.
In research (1)
Oct 22, 2026 · Cited as a state-of-the-art harness with persistent memory and rulebooks, the approach Phronix positions against.
Neighbours in the directory
Prague, Czechia · Est. 2023
Open-source sandboxes for running AI-generated code.
E2B gives agents secure, isolated cloud micro-VMs to execute code and commands — the execution runtime layer of the harness, used by many coding and data-analysis agents.
Est. 2023
Elastic sandboxes for running AI-generated code.
Daytona provides secure, OCI-compatible sandbox 'computers' that spin up in under 90ms — with snapshots for persistent agent state. In 2026 it moved core development to a private codebase while continuing to run as a commercial platform.
New York, NY · Est. 2021
Serverless cloud built for AI and agentic compute.
Modal lets teams run inference, fine-tuning and arbitrary agent workloads as serverless Python without managing infrastructure — a common substrate for harness backends at scale.
Sources
Verified Oct 29, 2026