# Sandbox as a Service

Official pricing: https://sandbox-as-a-service.com/pricing  
Category: agent-sandbox · Isolation: vm

## Pricing regimes (raw)

- **On-demand** (sizes): small 2 vCPU/4 GiB $0.09/h; medium 4 vCPU/8 GiB $0.28/h; large 8 vCPU/16 GiB $0.55/h

## Features

Yes: snapshots, fork/clone, ≥24 h sessions, custom image (Docker or snapshot), start from your own snapshot, full VM (own kernel), HTTPS preview URLs, open internet, Python, Node.js, live fork (no pause), EU data residency, MCP server, snapshots on demand, gVisor or VM (no shared kernel), inbound access rules, kernel features (eBPF, mounts, cgroups)

No: memory snapshots, pause/resume, persistent disk, volumes, idle auto-stop, your own Docker/OCI image, Docker inside, nested virtualization, root, browser, desktop GUI, computer-use API, browser + desktop control, anti-bot stealth, CAPTCHA solving, residential IPs, preinstalled agents, SSH, public IPv4, egress allowlist, static egress IP, self-hosting, BYOC, open source, SOC 2, HIPAA, SSO, GPU, arm64, Windows, macOS, HTTP method/path egress rules, wake on request, live resize, memory fork, usage per sandbox (API), automatic snapshots, agent harness API, hosted agent API (their own agent), firewall inside (nftables), secret proxy, secret proxy for any API, extra volumes, shared volumes

Unknown: everything else. Evidence (source + quote) per feature: https://battleships.dev/data/providers/sandbox-as-a-service.json → feature_evidence

## Company

- Ownership: bootstrapped
- Stage: bootstrapped [source](https://sandbox-as-a-service.com/imprint)
- Accelerators: none found
- Total raised: unknown
- Revenue: unknown

Appears to be a small, single-founder (Florian Standhartinger) bootstrapped German company (legal form: UG haftungsbeschränkt & Co. KG, based in Passau) rather than a venture-backed startup. No evidence of accelerator participation, funding rounds, investors, or disclosed revenue was found in a 15-minute search (DuckDuckGo queries for name + 'raises'/'seed'/'funding'/'Y Combinator'/'ARR' returned no relevant results, and the site itself is a thin product page with pricing/docs/security/privacy/imprint pages only).

## Caveats

- Public list rates. Dedicated disposable Linux VMs, prepaid balance. Ready-to-destroy runtime only; provisioning time excluded. No rounding or minimum runtime; credits do not expire.
- Features set to null were not verified. No sandbox was purchased or tested; feature/performance statements are documentation claims. Null maximums are unknown unless a cited note explicitly states unlimited.
- Egress is free (docs/billing, Not billed: "API requests, executions, output bytes, network transfer and API keys — all free.", checked 2026-10-14). Snapshot storage is billed at an unpublished rate (docs/sandboxes: "Delete one early with DELETE /v1/snapshots/{id} — it stops storage billing immediately."); snapshots are kept 7 days, max 3 per account, so snapshot cost is unknown, not free.
- Limits: default sandbox lifetime 15 min (max 1,440); command timeout 60 s default, 600 s max; 10 active API keys. Prepaid only: never billed beyond purchased credit and no automatic card charges; when the balance is empty running sandboxes are stopped and new creation is blocked.
- Start latency is vendor-published, not independently benchmarked (docs/limits, measured 23 Aug 2026, small size, checked 2026-10-14): warm ~1 s, but "The pool currently holds one machine." so only one small create at a time is warm; standard ~24–47 s ("Standard path, 33 creates: fastest 23.6 s, median 30.6 s, ninetieth percentile 40.4 s, slowest 46.9 s."); fallback ~160 s. Other sizes and snapshot restores always take the standard path. Provisioning time is not billed.

## How this provider charges


As of 2026-09-28. Prices are USD unless explicitly labelled otherwise. Source type: official published list/promo or unknown, never a fabricated quote.

Public list rates. Dedicated disposable Linux VMs, prepaid balance. Ready-to-destroy runtime only; provisioning time excluded. No rounding or minimum runtime; credits do not expire.

| Regime | When it applies | How billed / numbers | Source |
|---|---|---|---|
| Prepaid running | Small/medium/large | $0.09/$0.28/$0.55 per hour respectively; provisioning free. | https://sandbox-as-a-service.com/pricing |
| Deleted/timeout | 24h maximum, disposable | No surviving disk or snapshot. | https://sandbox-as-a-service.com/pricing |
| Raised concurrency | Default C=20; ask for more | Approval required; no separate public rate. | https://sandbox-as-a-service.com/pricing |

## Gotchas

- Public list rates. Dedicated disposable Linux VMs, prepaid balance. Ready-to-destroy runtime only; provisioning time excluded. No rounding or minimum runtime; credits do not expire.
- Features set to null were not verified. No sandbox was purchased or tested; feature/performance statements are documentation claims. Null maximums are unknown unless a cited note explicitly states unlimited.
- A complete monthly bill requires known snapshot/egress/plan limits; do not silently treat missing ancillary charges as free.

## Worked workload

4 vCPU / 8 GiB; 50 simultaneous instances × 8 h/day × 22 days = **8,800 instance-hours**, **35,200 vCPU-hours**, **70,400 GiB-hours**. At 30% observed CPU:10,560 active-vCPU-hours only where the meter actually uses utilization. Assume one start/instance/day:1,100starts. Retain50GiB snapshots for a month;100GiB outbound. Active disk capacity was not specified.

Medium 4/8/80 compute-only subtotal = 8,800×$0.28 = $2,464. Current default concurrency 20 fails requested 50; retention requirement is unsupported (ephemeral). Do not rank this as a feasible $2,464 total. Egress price unknown.

## Sources

- https://sandbox-as-a-service.com/pricing
- https://sandbox-as-a-service.com/llms.txt