DigitalOcean Harness Runtime vs microsandbox cloud

DigitalOcean Harness Runtime costs $0.044 per vCPU-hour and microsandbox cloud costs $0.05 per vCPU-hour. DigitalOcean Harness Runtime runs Firecracker microVMs. microsandbox cloud runs microVMs.

Updated Oct 14, 2026

DigitalOcean Harness Runtime

Managed microVM sandboxes for AI agents and their code.

Isolation: Firecracker microVM
Free tier: Not listed
Max session: Not listed

Visit site DigitalOcean Harness Runtime profile

microsandbox cloud

Hosted microVM sandboxes for AI agents and untrusted code.

Isolation: MicroVM
Free tier: Free plan, 5 computer-hours a month
Max session: Not listed

Visit site microsandbox cloud profile

What is different

9 fields differ. The rest are the same or not listed.

Field

DigitalOcean Harness Runtime

microsandbox cloud

vCPU, per hour: DigitalOcean Harness Runtime: $0.044; microsandbox cloud: $0.05
RAM, per GiB-hour: DigitalOcean Harness Runtime: $0.0095; microsandbox cloud: $0.0162
Storage: DigitalOcean Harness Runtime: Session volumes $0.05 per GiB-month; microsandbox cloud: $0.0001 per GiB-hour
Paid plan from: DigitalOcean Harness Runtime: Pay as you go; microsandbox cloud: $49 / month
Billing: DigitalOcean Harness Runtime: Active CPU time only; microsandbox cloud: Per second
Concurrent sandboxes: DigitalOcean Harness Runtime: Up to 100; microsandbox cloud: Up to 25,000
Isolation: DigitalOcean Harness Runtime: Firecracker microVM; microsandbox cloud: MicroVM
Pause and resume: DigitalOcean Harness Runtime:; microsandbox cloud: No
SDKs: DigitalOcean Harness Runtime: Python; microsandbox cloud: Python, TypeScript, Rust, Go, Ruby

Full comparison

18 fields, at each provider's list price

DigitalOcean Harness Runtimedigitalocean.com/pricing/harness-runtimedigitalocean.com

microsandbox cloudmicrosandbox.dev/pricingmicrosandbox.dev

Pricing

vCPU, per hour: DigitalOcean Harness Runtime: $0.044; microsandbox cloud: $0.05
RAM, per GiB-hour: DigitalOcean Harness Runtime: $0.0095; microsandbox cloud: $0.0162
Storage: DigitalOcean Harness Runtime: Session volumes $0.05 per GiB-month; microsandbox cloud: $0.0001 per GiB-hour
Free tier: DigitalOcean Harness Runtime: Not listed; microsandbox cloud: Free plan, 5 computer-hours a month
Paid plan from: DigitalOcean Harness Runtime: Pay as you go; microsandbox cloud: $49 / month
Billing: DigitalOcean Harness Runtime: Active CPU time only; microsandbox cloud: Per second

Limits

Max session: DigitalOcean Harness Runtime: Not listed; microsandbox cloud: Not listed
Idle stop: DigitalOcean Harness Runtime: After 15 minutes; microsandbox cloud: Not listed
Largest sandbox: DigitalOcean Harness Runtime: 16 vCPU · 32 GiB; microsandbox cloud: Not listed
Concurrent sandboxes: DigitalOcean Harness Runtime: Up to 100; microsandbox cloud: Up to 25,000

Platform

Isolation: DigitalOcean Harness Runtime: Firecracker microVM; microsandbox cloud: MicroVM
GPU: DigitalOcean Harness Runtime: Not listed; microsandbox cloud: No
Snapshots: DigitalOcean Harness Runtime:; microsandbox cloud:
Pause and resume: DigitalOcean Harness Runtime:; microsandbox cloud: No

Developer

SDKs: DigitalOcean Harness Runtime: Python; microsandbox cloud: Python, TypeScript, Rust, Go, Ruby
Integrations: DigitalOcean Harness Runtime: Not listed; microsandbox cloud: Not listed

Trust

License: DigitalOcean Harness Runtime: Not listed; microsandbox cloud: Apache-2.0
BYOC: DigitalOcean Harness Runtime: Not listed; microsandbox cloud: Not listed

Hourly cost

One sandbox running for one hour

Size

DigitalOcean Harness Runtime

microsandbox cloud

1 vCPU · 2 GiB: DigitalOcean Harness Runtime: $0.063; microsandbox cloud: $0.082
2 vCPU · 4 GiB: DigitalOcean Harness Runtime: $0.126; microsandbox cloud: $0.165
4 vCPU · 8 GiB: DigitalOcean Harness Runtime: $0.252; microsandbox cloud: $0.330

Compute only, at list rates.

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Which one fits

Based on the fields above

DigitalOcean Harness Runtime fits when

You want to pay only for usage, with no plan fee.
You want the lower list price: $0.126 against $0.165 an hour for 2 vCPU and 4 GiB.
You need pause and resume.
Your code waits a lot: CPU is billed only while it is in use.

microsandbox cloud fits when

You want an open-source platform (Apache-2.0) that you can self-host.

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DigitalOcean Harness Runtime

microsandbox cloud

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

DigitalOcean Harness Runtime fits when

microsandbox cloud fits when

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