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microsandbox
microsandbox.dev/pricingContainer and VM sandboxcompute/microsandboxJSONcomparereport an errorprovider JSON
- Free allowance
- A monthly pool of 5 vCPU-hours, 20 GiB-hours of memory and 20 GiB-hours of disk with a 1 GiB durable-storage cap, and a hard cap of 3 sandboxes at 1 vCPU, 512 MiB and 8 GiB of disk with no overage
- Verdict
- caveatusable, with a named limit or an unprobed read path
- Cost
- free tier
- Identity
- email?placeholder, not evidence; card unknown, phone unknown
- Binding limit
- request-rate5 vCPU-hours a month on the free pool, hard-capped with no overage
- Evidence
- documented4 sources; a first-party page was read and the sentence quoted
- Freshness
- stale on 2026-12-05checked 2026-11-04 (live); stale on 2026-12-05
| Free tier | a monthly pool of 5 vCPU-hours, 20 GiB-hours of memory and 20 GiB-hours of disk with a 1 GiB durable-storage cap, and a hard cap of 3 sandboxes at 1 vCPU, 512 MiB and 8 GiB of disk with no overage unit hours; metered on wall-clock |
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| Price | none stated |
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| Limits | - request-rate (binding) 5 vCPU-hours a month on the free pool, hard-capped with no overage source
- per-object-cap 1 GiB of durable storage and 3 sandboxes at 1 vCPU, 512 MiB and 8 GiB of disk source
not stated |
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| Identity | email (placeholder) not published |
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| Egress | not published: the pricing page meters vCPU, memory, disk and durable storage and states no egress allowance or price; public internet access is on by default and can be cut to an allowlist or disabled |
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| Per-object cap | not stated |
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| Retention | not stated |
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| Interface | cli CLI (msb), and SDKs for Rust, TypeScript, Python and Go; with an API key the same SDK runs on microsandbox cloud; an MCP server exists |
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| Reliability | no reliability event recorded |
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| Evidence note | documented the pricing page was read on 2026-10-22 and states the free pool in computer-hours with a hard cap and no overage. The pool is what makes the duty cycle computable: 5 vCPU-hours a month is about 10 minutes a day |
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| Parsed numbers | - has-free-tier 1
- per-object-cap 1 GiB
|
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Evidence 4
| date | source | what it proved |
|---|
| 2026-10-02 | microsandbox.dev/pricing | not published |
| 2026-10-22 | microsandbox.dev/pricing | 'every sandbox is a small computer, billed for the time it actually runs. plans bundle a monthly pool of compute' with a free pool of '5 vcpu-hours, 20 memory gib-hours, 20 disk gib-hours, 1 gib durable storage cap' described as 'hard cap. no overage. 3 sandboxes, each 1 vcpu, 512 mib, 8 gib disk', quoted |
| 2026-11-03 | microsandbox.dev | egress is open by default and no allowance or price is stated |
| 2026-11-03 | docs.microsandbox.dev/sdk/overview | the cloud is reached through the SDK with an API key |
More fields 8
| keep rate | 1.0 |
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| billing model | unclassified |
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| shape | {"vcpu": 1,"ram": 0.5,"disk": 8,"gpu_class": null,"gpu_count": null,"note": "the free shape: 1 vCPU, 512 MiB and 8 GiB of disk, three at a time"} |
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| session cap | {"wall_clock_min": null,"idle_reap_s": null,"restart_required": false,"note": "billed for the time a sandbox actually runs; the monthly pool is the bound and the page states no reap"} |
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| free tier kind | allowance |
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| granularity | {"min_billed_s": 0,"rounding_s": null} |
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| burst x | 1.0 |
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| ps | {"gib": 1,"price": "a 1 GiB durable-storage cap on the free pool","durability": "durable storage","on_stop": true,"on_destroy": false,"retention": "the plan's cap"} |
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Unknown values 8
- chaining: a source was read and is silent on this field
- egress metered: egress metering was not published
- limits note: a source was read and is silent on this field
- per object cap stated: a source was read and is silent on this field
- reliability note: nothing of this kind was observed
- retention notes: the field may be stated in a source that was not read
- retention stated: a source was read and is silent on this field
- tooling: a source was read and is silent on this field