StartupY Combinator (F26)
Agent37
Isolated cloud sandboxes that host Hermes, OpenClaw, Claude Code, Codex, OpenCode, Pi and QM.
Agent37 hosts many agent harnesses — Hermes, OpenClaw, Claude Code, Codex, OpenCode, Pi and YC's QM — in isolated cloud sandboxes billed by the minute; its FAQ prices a 2 vCPU / 4 GB sandbox running all month at $4.76. Its founder says it "started as one of those OpenClaw wrapper companies back in February". Launch HN in October 2026 drew 163 points; Y Combinator F26.
In the news
Community · Hacker News · Oct 12, 2026
Hey HN, I’m Vishnu from Agent37 ( https://agent37.com ). We build sandboxes for running AI agents at under 10% of the cost of most sandbox providers. Our customers spend an average of $0.37/month per sandbox. You can view a video walkthrough of the product here: https://youtu....
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.
San Francisco, CA · Est. 2024
The open platform for cloud coding agents.
OpenHands (formerly All Hands AI, born from the OpenDevin project) builds the major open-source coding-agent platform — agent canvas, sandboxed execution, SDK and an enterprise control plane — now rebranded under the project's name.
Connections
Relations from the Harness Hub knowledge graph, as charted in the State of Harness reports.
Built on · 3
- Claude CodeProject
- CodexProject
- OpenClawProject
Mentioned in · 1
Sources
Verified Oct 29, 2026