Microsoft Foundry hosted agents alternatives with no session limit
30 sandbox providers with no session limit you can use instead of Microsoft Foundry hosted agents. Agent37 Cloud has the lowest hourly price, $0.006 for 2 vCPU and 4 GiB. Orgo, Northflank Sandboxes, Daytona, Thunder Sandboxes, Tensorlake Sandboxes and Beam Sandboxes offer GPUs.
Updated
Microsoft Foundry hosted agents, for reference
Microsoft Foundry hosted agentsRuns your AI agent code on Azure, with each session in its own microVM.
IsolationMicroVM
2 vCPU · 4 GiB$0.246 / hr
Free tierNot listed
Max sessionNot listed
30 alternatives to Microsoft Foundry hosted agents with no session limit
Sorted by hourly price for 2 vCPU · 4 GiB, low to high
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Agent37 Cloud
Persistent Linux sandboxes and VMs for code and agents.Lowest hourly priceNo session limitDesktop$0.006per hour
Krova Cloud
Firecracker microVMs with root access, billed by the minute.No session limitFirecrackerLower vCPU price$0.012per hour
Zipbox
Long-lived Firecracker microVMs for AI agents, each with its own desktop.No session limitDesktopFirecracker$0.014per hour
$0.016per hour
$0.018per hour
Shellbox
Linux microVMs for developers and AI agents, made and controlled over SSH.No session limitFirecrackerLower vCPU price$0.020per hour
Bunny Sandbox
Isolated cloud sandboxes for AI agents, run on gVisor.Bills active CPU onlyNo session limitgVisor$0.060per hour
Orgo
Cloud Linux and Windows desktops that AI agents control by API or MCP.GPUNo session limitDesktop$0.060per hour
Sandbox0
Long-running agent sandboxes with durable storage.Bills on memory onlyNo session limitgVisor$0.060per hour
$0.062per hour
Northflank Sandboxes
MicroVM sandboxes for running untrusted code.GPUNo session limitCloud Hypervisor$0.067per hour
Runtime
Firecracker microVM sandboxes for AI agents, billed on the CPU that code uses.Bills active CPU onlyNo session limitDesktop$0.080per hour
Buddy Sandboxes
Persistent Linux VMs that AI agents create and control through an API, SDK, CLI or MCP.No session limitFull VMLower vCPU price$0.086per hour
Prime Sandboxes
Isolated microVM sandboxes for AI agents and RL.No session limitMicroVMLower vCPU price$0.090per hour
Oblien Workspace
Hosted microVM workspaces for AI agents.Bills active CPU onlyNo session limitDesktop$0.092per hour
CreateOS Sandbox
Hosted Firecracker microVM sandboxes for AI agents.No session limitDesktopFirecracker$0.119per hour
Together Sandbox
Isolated runtime environments for code from AI agents.No session limitFirecrackerLower vCPU price$0.149per hour
$0.150per hour
Blaxel
Sandboxes that pause when idle and resume with state.Bills on memory onlyNo session limitDesktop$0.166per hour
$0.166per hour
$0.166per hour
$0.166per hour
Thunder Sandboxes
Isolated, short-lived sandboxes for agents, GPU optional.GPUNo session limitFirecracker$0.166per hour
PandaStack Sandbox
Firecracker microVM sandboxes for AI agents.Bills active CPU onlyNo session limitFirecracker$0.173per hour
$0.200per hour
Tensorlake Sandboxes
MicroVM sandboxes for AI agents and AI-generated code.Bills active CPU onlyGPUNo session limit$0.200per hour
Beam Sandboxes
Isolated, secure environments for running untrusted code at scale.GPUNo session limitContainer$0.227per hour
Railway Sandboxes
Isolated Linux VMs you create on demand and destroy.Bills active CPU onlyNo session limitFull VM$0.417per hour
Apify AI Code Sandbox
Apify Actor that runs AI-generated code in an isolated container, with MCP, REST API and shell access.Bills on memory onlyNo session limitContainer$0.800per hour
xShellz Agent Shell
Always-on Linux boxes for AI agents, isolated with gVisor.No session limitgVisorFree plan, 1 box with 0.5 vCPU and 512 MBNot listedper hour
Side by side
Microsoft Foundry hosted agents first, then the 30 alternatives
Provider
Isolation
vCPU / hr
GiB / hr
Free tier
Max session
GPU
- Isolation
- MicroVM
- vCPU / hr
- $0.099
- Free tier
- Not listed
- Isolation
- gVisor
- vCPU / hr
- $0.001
- Free tier
- $5 credit
- Isolation
- Firecracker
- vCPU / hr
- $0.001
- Free tier
- $5 credit
- Isolation
- Firecracker
- vCPU / hr
- $0.007
- Free tier
- $25 credit
- Isolation
- Firecracker
- vCPU / hr
- $0.008
- Free tier
- 7-day trial
- Isolation
- Full VM
- vCPU / hr
- $0.009
- Free tier
- 7-day free trial with 25 hours of compute
- Isolation
- Firecracker
- vCPU / hr
- $0.010
- Free tier
- Not listed
- Isolation
- gVisor
- vCPU / hr
- $0.020
- Free tier
- Not listed
- Isolation
- Full VM
- vCPU / hr
- $0.030
- Free tier
- $5 credit
- Isolation
- gVisor
- vCPU / hr
- Included
- Free tier
- $5 credit
- Isolation
- Full VM
- vCPU / hr
- $0.015
- Free tier
- $5 credit each month
- Isolation
- Cloud Hypervisor
- vCPU / hr
- $0.017
- Free tier
- Free plan
- Isolation
- Firecracker
- vCPU / hr
- $0.025
- Free tier
- 100 free hours
- Isolation
- Full VM
- vCPU / hr
- $0.014
- Free tier
- $1 / mo
- Isolation
- MicroVM
- vCPU / hr
- $0.020
- Free tier
- Not listed
- Isolation
- Firecracker
- vCPU / hr
- $0.030
- Free tier
- Free tier, no credit card
- Isolation
- Firecracker
- vCPU / hr
- $0.036
- Free tier
- 500 free credits
- Isolation
- Firecracker
- vCPU / hr
- $0.045
- Free tier
- Not listed
- Isolation
- MicroVM
- vCPU / hr
- $0.047
- Free tier
- $30 credit
- Isolation
- MicroVM
- vCPU / hr
- Included
- Free tier
- Credit of up to $200
- Isolation
- Container
- vCPU / hr
- $0.050
- Free tier
- $200 free compute
- Isolation
- Firecracker
- vCPU / hr
- $0.050
- Free tier
- $200 credit
- Isolation
- Firecracker
- vCPU / hr
- $0.050
- Free tier
- $5 to start, plus $95 when you add billing
- Isolation
- Firecracker
- vCPU / hr
- $0.051
- Free tier
- Not listed
- Isolation
- Firecracker
- vCPU / hr
- $0.054
- Free tier
- $5.40 / month
- Isolation
- Full VM
- vCPU / hr
- $0.100
- Free tier
- $5 credit
- Isolation
- Firecracker
- vCPU / hr
- $0.070
- Free tier
- Free plan, $0 forever
- Isolation
- Container
- vCPU / hr
- $0.068
- Free tier
- Not listed
- Isolation
- Full VM
- vCPU / hr
- $0.069
- Free tier
- $5 credit
- Isolation
- Container
- vCPU / hr
- Included
- Free tier
- $5 / mo
- Isolation
- gVisor
- vCPU / hr
- Not listed
- Free tier
- 1 small box
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MicroVM sandboxes
Sandboxes with pause and resume