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Namespace

Fast microVM instances and CI runners with instant snapshots and cached builds.

namespace.sonamespace.so/docs
Overall in sandbox providers
10of 19 · score 71.6
Data coverage
92%
24 of 26 fields sourced

Best for

  • •You already use Namespace for CI runners
  • •Build-cache-heavy environments that are slow to reconstruct
  • •You want infrastructure primitives rather than an agent SDK

Strong on

  • +Snapshot & fork Yes 1/19
  • +Idle cost free-when-stopped 1/19
  • +SDKs go, rest-api, cli 2/19

Weak on

  • −MCP server No 13/18
    Better: Daytona: Yes
  • −Meter per-minute 13/19
    Better: Cloudflare Sandbox: per-10ms
  • −Runtimes any-oci-image 11/18
    Better: boat: python, javascript-typescript, bash, go, rust, java, ruby, php, any-oci-image
  • −Funding seed 9/15
    Better: Fly.io Machines: series-c-plus

vs CodeSandbox SDK

  • •Ahead on Egress control: proxy-logged vs open
  • •Ahead on SDKs: go, rest-api, cli vs typescript, python
  • •Behind on Meter: per-minute vs per-second
  • •Behind on Preview URLs: Partial vs Yes

How Namespace scores among 19 sandbox providers24 of 26 fields known

Runtime13

Cold start
1.5s
11/16
Leader: Riza · 120ms
Cold start (claimed)
800ms
7/12
Leader: Blaxel · 25ms
namespace.so · 2026-07-23
Max runtime1st
24h
1/18
Persistent FS1st
Yes
1/19
Snapshot & fork1st
Yes
1/19
namespace.so · 2026-01-15
Custom images1st
Yes
1/19
GPU
—
Runtimes
any-oci-image
11/18
Leader: boat · python, javascript-typescript, bash, go, rust, java, ruby, php, any-oci-image
Preview URLs
Partial
15/19
Leader: E2B · Yes
Browser inside3rd
Partial
3/18
Leader: E2B · Yes
File up/download
Partial
11/19
Leader: E2B · Yes
Sydney region
No
8/18
Leader: Fly.io Machines · Yes
Concurrent limit
100 sandboxes
5/15
Leader: Vercel Sandbox · 2,000 sandboxes

Isolation & network3

Isolation1st
microvm
1/19
namespace.so · 2026-07-23
Root in guest1st
Yes
1/19
Egress control
proxy-logged
12/19
Leader: Daytona · allowlist

Agent integration3

MCP server
No
13/18
Leader: Daytona · Yes
SDKs2nd
go, rest-api, cli
2/19
Leader: Runloop · python, typescript, rest-api, cli
Streaming output1st
Yes
1/17

Pricing3

Price / hour
$0.24/hr
14/17
Leader: boat · $0.018/hr
namespace.so · 2026-11-07
Meter
per-minute
13/19
Leader: Cloudflare Sandbox · per-10ms
Idle cost1st
free-when-stopped
1/19

Traction2

GitHub stars
—
Funding
seed
9/15
Leader: Fly.io Machines · series-c-plus

Positioning1

Positioning
Fast ephemeral compute for CI, builds and remote development.

Timeline1

Shipped
2023
10/16
Leader: Daytona · 2025

Alternatives8

Compare

Sources3

Namespace logo & brand colours

Logo assets

LogoSVG
Download
MonochromeSVG
Namespace logo

Flattened to currentColor, what Toolweight renders in tables and nav.

Download

Namespace brand colours

#1C32FF
#FFFFFF