Self-hosted Shardflux alternatives
21 self-hosted sandbox providers you can use instead of Shardflux. Containarium Cloud has the lowest hourly price, $0.040 for 2 vCPU and 4 GiB.
Updated
Shardflux, for reference
ShardfluxServerless VMs for cloud agents that park when idle and keep their state.
IsolationFirecracker
2 vCPU · 4 GiB$0.140 / hr
Free tier30 days of Pro
Max sessionNot listed
21 self-hosted alternatives to Shardflux
Sorted by hourly price for 2 vCPU · 4 GiB, low to high
Sponsored listing
SponsoredThis slot is open. Contact us to book it.
Containarium Cloud
Hosted Linux boxes for AI agents, reached over SSH.ContainerLower vCPU priceFree tier$0.040per hour
Sandbox0
Long-running agent sandboxes with durable storage.Bills on memory onlyNo session limitgVisor$0.060per hour
Vers
Linux computers you can branch, checkpoint, and restore.Full VMCommits and checkpointsStarting credit$0.080per hour
Collimate
Live-fork microVM sandboxes for RL post-training and coding agents.FirecrackerLower RAM priceDemo key, free with no card$0.128per hour
Everstack
Open-source platform that runs isolated sandboxes for AI agents.Snapshots and templates$5 credit, valid 30 days after signup$0.133per hour
MIOSA
Cloud sandboxes and persistent computers that AI agents use to build and run software.FirecrackerLower RAM price$10 credit, one time$0.149per hour
$0.150per hour
BoxLite Cloud
Hosted microVM boxes for AI agents, with an SDK.MicroVMLower RAM priceDisabled on Cloud$0.158per hour
microsandbox cloud
Hosted microVM sandboxes for AI agents and untrusted code.MicroVMDisk only, from stopped persistent sandboxesFree plan, 5 computer-hours a month$0.165per hour
Smol Machines
Hosted Linux microVMs with their own kernel, for agents and untrusted code.MicroVMNot in the cloud API. Use branch or export instead.$100 credit, one time$0.165per hour
$0.166per hour
E2B
Open-source sandbox platform that gives AI agents isolated machines.Firecracker4 regions$100 credit, one time$0.166per hour
Leap0
Firecracker microVM sandboxes for running untrusted code.FirecrackerMemory and disk state1 regions$0.166per hour
Superserve
Firecracker microVM sandboxes that pause and resume.No session limitFirecracker$5 to start, plus $95 when you add billing$0.166per hour
PandaStack Sandbox
Firecracker microVM sandboxes for AI agents.No session limitFirecracker$5.40 usage credit every month$0.173per hour
LangSmith Sandboxes
Isolated sandboxes for running agent-generated code.FirecrackerFrom Docker images or running sandboxes4 regions$0.189per hour
$0.200per hour
OmniRun
Sandboxes on Firecracker microVMs, self-hosted or managed.FirecrackerUser snapshots planned for v0.21 regionsNot listedper hour
Orgo
Cloud Linux and Windows desktops that AI agents control by API or MCP.No session limitFull VMClone a computer, or launch from a template snapshotNot listedper hour
Not listedper hour
Unikraft Cloud
MicroVM sandboxes that start in under 10 ms.FirecrackerSnapshot history and rollback on Pro5 regionsNot listedper hour
Side by side
Shardflux first, then the 21 alternatives
Provider
Isolation
vCPU / hr
GiB / hr
Free tier
Max session
GPU
- Isolation
- Firecracker
- vCPU / hr
- $0.040
- Free tier
- 30 days of Pro
- Isolation
- Container
- vCPU / hr
- $0.020
- Free tier
- Free tier
- Isolation
- gVisor
- vCPU / hr
- Included
- Free tier
- Not listed
- Isolation
- Full VM
- vCPU / hr
- $0.040
- Free tier
- Starting credit
- Isolation
- Firecracker
- vCPU / hr
- $0.040
- Free tier
- Free demo
- Isolation
- Not listed
- vCPU / hr
- $0.067
- Free tier
- $5 credit
- Isolation
- Firecracker
- vCPU / hr
- $0.045
- Free tier
- $10 credit
- Isolation
- MicroVM
- vCPU / hr
- $0.047
- Free tier
- $30 credit
- Isolation
- MicroVM
- vCPU / hr
- $0.050
- Free tier
- $100 credit
- Isolation
- MicroVM
- vCPU / hr
- $0.050
- Free tier
- Free plan
- Isolation
- MicroVM
- vCPU / hr
- $0.050
- Free tier
- $100 credit
- Isolation
- Firecracker
- vCPU / hr
- $0.050
- Free tier
- $100 credit
- Isolation
- Firecracker
- vCPU / hr
- $0.050
- Free tier
- $100 credit
- Isolation
- Firecracker
- vCPU / hr
- $0.050
- Free tier
- Free during public preview
- Isolation
- Firecracker
- vCPU / hr
- $0.050
- Free tier
- $5 to start, plus $95 when you add billing
- Isolation
- Firecracker
- vCPU / hr
- $0.054
- Free tier
- $5.40 / month
- Isolation
- Firecracker
- vCPU / hr
- $0.058
- Free tier
- 8 LSU a month
- Isolation
- Full VM
- vCPU / hr
- $0.100
- Free tier
- $10 credit
- Isolation
- Firecracker
- vCPU / hr
- Not listed
- Free tier
- Not listed
- Isolation
- Full VM
- vCPU / hr
- Not listed
- Free tier
- Not listed
- Isolation
- Container
- vCPU / hr
- Not listed
- Free tier
- None
- Isolation
- Firecracker
- vCPU / hr
- Not listed
- Free tier
- Hobby plan, free forever