Superserve
Firecracker microVM sandboxes for long-running AI agents
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Hey HN, I built Superserve, a compute layer that lets AI agents live inside isolated Firecracker microVMs with no session time limits.The problem I kept running into: most sandbox providers kill your agent after 24 hours. If you're running something autonomous that needs to work for days — refactoring a codebase, running tests in a loop — you're constantly fighting timeouts and rebuilding state.Superserve lets you snapshot a running VM at any point, fork it into parallel branches, and resume exactly where you left off. Each agent gets its own VM, no shared kernels. There's also a credentials broker so agents never touch raw API keys directly, and egress is locked to URLs you specify.You bring your own agent (Claude Code, Codex, etc.). We handle the durable compute underneath. TypeScript and Python SDKs, MCP support, open-source and self-hostable.Would love to hear feedback, especially from anyone building long-running agents.
HN · launched Jul 21, 2026 · 9 upvotes (top 49%) · 0 views
Niche: ai agent execution sandboxes · 137 launches, 6 in the last 7 days ▼ -25% · Explore this niche →
Category and tags
- Horizontal
- Dev tools
- Developer
- AI-native
- Commercial product
Visit website ↗ Source listing ↗
More like this: all 137 launches in ai agent execution sandboxes →
Could you build this?
No Building an infrastructure platform running multi-tenant, durable Firecracker microVMs with fast snapshotting, state suspension, and resume requires deep Linux kernel, hypervisor, and systems engineering expertise.
What it would actually take: Requires bare-metal Linux hosts with KVM, orchestration software written in Rust/Go interacting directly with the Firecracker API, and specialized copy-on-write storage layers (e.g., devicemapper, thin-provisioning, or userfaultfd-based lazy paging) for instantaneous microVM resume. Beyond the VM layer, it requires custom virtual networking (TAP devices, eBPF, NAT/firewall isolation) and strict multi-tenant sandboxing.
Discussion
1 comment analyzed.
Concerns raised: Handling cron jobs, Waking from messaging app
Competitors
Other products that read as similar to this one : 407 launches clear the similarity bar, closest 8 shown.
Attention rank: #206 of 408 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 255 days after the earliest competitor.
- Tarit · hn · 2026-07-08 · 6 upvotes · similarity 0.57
- Run coding agents in microVM sandboxes instead of your host machine · hn · 2026-04-23 · 63 upvotes · similarity 0.56
- Sandbox0 · ph · 2026-10-24 · 1 upvotes · similarity 0.52
- We built a <60ms, open-source alternative to E2B using RustVMM and KVM · hn · 2026-04-22 · 7 upvotes · similarity 0.51
- Superserve: Virtual machines for long-running agents · yc · 2026-11-02 · 19 upvotes · similarity 0.51
- Sanbox, batteries included sandboxes for AI agents · hn · 2026-07-12 · 5 upvotes · similarity 0.50
- Sub-millisecond VM sandboxes using CoW memory forking · hn · 2026-03-17 · 311 upvotes · similarity 0.49
- Render Sandboxes · ph · 2026-11-04 · 250 upvotes · similarity 0.49
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