# InstaBox

Firecracker microVM machines for agents with a desktop, Docker and coding agents preinstalled, billed per second for vCPU and memory on top of a monthly plan.

- Operated by: InstaBox
- Status: Active [1]
- Website: https://instabox.sh
- Categories: Agent sandboxes, Devboxes
- Checked: 31 Oct 2026

## InstaBox machines (Pro) (Agent sandboxes)

- Price: $0.004 /vCPU-h (+ $0.00225 per GB-hour)
- 1-hour session: ≥ $0.017 (2 vCPU / 4 GB · rank 2 of 26)
- Fleet month: ≥ $169.60 (50 × 8 h × 22 days)
- Billed on: Running time (per second)
- Isolation: Firecracker microVM (sessions up to 8 h)

What to know:

- $20/mo plan: This price only applies on a plan of at least $20 a month.
- Max session 8 h: A sandbox is stopped after 8 h.
- Max 1 running: At most 1 sandboxes run at the same time.

### Plans

- Free: Free; 1 machine (4 vCPU / 8 GiB), 20 GiB disk, 5 snapshots, 100 GiB egress a month, 480-minute runs [1]
- Pro: $20 /month; $20 a month of credits, 100 concurrent machines, up to 8 vCPU / 16 GiB, disk up to 200 GiB, 1 TiB egress [1]
- Builder: $100 /month; $100 a month of credits, 200 concurrent machines, up to 16 vCPU / 32 GiB, disk up to 500 GiB, 5 TiB egress [1]
- Team: $500 /month; $500 a month of credits, 500 concurrent machines, up to 32 vCPU / 64 GiB, disk up to 1 TiB, 50 TiB egress [1]

### Billing

- Payment: Monthly plan with included usage [2]
- Plan minimum: $20 a month [2]
- Billing increment: Per second [2]
- Minimum charge: unknown (Not on the pricing, billing or limits pages) [2]
- Per-job fee: None [2]

### Runtime

- Billed on: Running time [2]
- Isolation: Firecracker microVM [2]
- Max session: 8 h [2]
- Concurrent sandboxes: 1 [2]
- Largest vCPU: 32 [2]
- Largest memory: 64 GB [2]

### Lifecycle

- Survives a stop: Disk and memory [5]
- Snapshots: Yes [5]
- Pause and resume: Yes [5]
- Fork: Disk copy [5]
- Compute billed while stopped: No [5]
- Auto-stop: after 30 min [5]
- Start time (vendor claim): unknown (No start-time figure; docs say a resumed machine carries on usually in about a second and a fork takes a few seconds) [5]

### Capabilities

- GPU: No [4]
- Desktop: Computer-use API [4]
- Coding agents installed: Claude Code, Codex, OpenCode [4]
- Agent prompt API: No [4]
- SSH: Yes [4]
- Docker inside: Yes [4]
- SDKs: Python, TypeScript, CLI, REST, MCP [4]
- SOC 2: unknown (No security, trust or compliance page; instabox.sh/security.md returns 404) [4]

### Storage and network

- Disk included: None [1]
- Extra disk: $0.08 per GB-month [1]
- Snapshot storage: Free [1]
- Egress: $0.02 per GB [1]

### Platform

- Regions: unknown (Not published; machines have no region field and placement is the platform's) [3]
- Your cloud (BYOC): Yes [3]
- Self-host: unknown (No open-source runtime or self-hosting described in the docs (llms-full.txt)) [3]

### Free allowance

- Minutes a month: unknown (Free plan runs 1 machine at no charge with 480-minute runs and a 30-minute idle pause; no monthly minute cap is published) [4]
- Credit a month: None [4]
- One-time credit: None [4]

### Prices

| Resource | Price | Per hour |
|---|---|---|
| per vCPU | $0.004 /h [1] | $0.004 |
| per GB of memory | $0.00225 /h [1] | $0.00225 |

- Each paid plan's monthly fee comes back as that month's usage credit; usage beyond it is billed at the unit prices. Credits reset every month.
- Memory is priced per GiB-hour ($0.00225); recorded as memory_gb.
- Disk on paid plans costs $0.08 per GiB-month ($0.00011 per GiB-hour) while the machine exists, running, paused or stopped; the system disk, snapshots and a paused machine's saved memory are free.
- Every plan includes monthly egress (100 GiB Free, 1 TiB Pro, 5 TiB Builder, 50 TiB Team), then $0.02 per GiB; outbound bandwidth is capped near 50 Mbit/s per machine.
- Accounts registered before 2026-10-20 had five free sandboxes until 2026-12-01; after that the free plan runs one at a time.
- Enterprise is custom, with a 99.9% SLA, SSO/SAML and SCIM, audit logs, a dedicated pool or BYOC and a HIPAA BAA.
- A `ci` template runs GitHub Actions jobs with `runs-on` labels (instabox-medium); that runner product is not recorded here.

## Sources

[1] https://instabox.sh/docs/pricing.md (checked 31 Oct 2026)
[2] https://instabox.sh/docs/billing.md (checked 31 Oct 2026)
[3] https://instabox.sh/docs/machines.md (checked 31 Oct 2026)
[4] https://instabox.sh/docs/limits.md (checked 31 Oct 2026)
[5] https://instabox.sh/docs/concepts.md (checked 31 Oct 2026)