Agent SubstrateGoogle
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RAMKeeperReelary
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Related Products
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About
Agent Substrate is an open-source runtime for operating isolated, stateful agent and code-execution sandboxes on Kubernetes. It coordinates actor and worker lifecycles, places active workloads on a shared pool of ready capacity, and can suspend idle environments while preserving memory and filesystem state for later resumption. Sandboxes use gVisor or Cloud Hypervisor microVM isolation, with per-actor identity and network controls. Agent Substrate is designed for platform and infrastructure teams building agent-hosting services, coding environments, and other workloads that execute untrusted or intermittent tasks. The core project is Kubernetes-portable; Google Cloud also provides GKE-optimized deployment tooling. Optional Filestore agent volumes can persist workspaces across suspend and resume cycles.
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About
RAMKeeper is a macOS menu bar utility for people who want to understand and manage memory use on a Mac. Its free direct-download build attributes memory to apps and browser or Electron renderer processes, grouping helpers under parent apps and showing current and peak readings. A separate free Mac App Store build reports system-level memory pressure, swap and compressed memory; Apple's sandbox prevents it from showing per-app memory. The $19 one-time Pro unlock for the direct build adds configurable memory-threshold rules that can notify, gently restart or suspend an app, Focus Mode to suspend and resume background apps, and a history of actions with before-and-after readings. Controls are off until configured. The app runs on macOS 12 or later on Apple silicon and Intel Macs, and memory analysis occurs locally.
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Platforms Supported
Windows
Not Supported
Mac
Not Supported
Linux
Supported
Cloud
Not Supported
On-Premises
Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Platforms Supported
Windows
Not Supported
Mac
Supported
Linux
Not Supported
Cloud
Not Supported
On-Premises
Not Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Audience
Platform and infrastructure teams building services that run isolated agent or code-execution workloads on Kubernetes.
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Audience
Mac users who want to see which app or browser tab is using their memory.
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Not Supported
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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API
Offers API
Supported
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API
Offers API
Not Supported
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Screenshots and Videos |
Screenshots and Videos |
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Pricing
$0
Agent Substrate on GKE is offered at no extra charge. GKE pricing applies to the resources you create.
Free Version
Supported
Free Trial
Not Supported
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Pricing
$19 one-time
A free direct-download version provides per-app and per-renderer memory attribution. The Mac App Store version is also free but limited to system-level memory readings. Pro costs $19 as a one-time purchase and adds threshold rules, Focus Mode, gentle restarts, and action history. No subscription; free updates and support are included, with a 14-day refund.
Free Version
Supported
Free Trial
Not Supported
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Reviews/
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Reviews/
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Company InformationGoogle
Founded: 1998
United States
github.com/agent-substrate/substrate
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Company InformationReelary
Founded: 2026
United States
ramkeeper.reelary.app/
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Alternatives |
Alternatives |
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Categories |
Categories |
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Integrations
Google Cloud Filestore
Supported
Google Cloud Platform
Supported
Model Context Protocol (MCP)
Supported
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Integrations
Google Cloud Filestore
Not Supported
Google Cloud Platform
Not Supported
Model Context Protocol (MCP)
Not Supported
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