YC F26 Launches Agent37, Pitches Sub-$1 Monthly Sandboxes for Running AI Agents at 10% of Rival Costs

YC F26 batch startup Agent37 launched on October 12 with hosted sandboxes for running agents like Hermes, OpenClaw and Claude Code, priced from about $4.94/month for 2 vCPU/4GB RAM and averaging $0.37/month per sandbox. Founder Vishnu (ex-Amazon, ex-Quantcast) says the service runs at roughly 10% of typical sandbox-provider cost by using Hetzner and OVH over hyperscalers, gVisor for resource sharing and RAM-centric optimisation for agent workloads. The pitch arrives in a crowded YC lane where multiple batches are chasing the agent-sandbox slot.