Agent SubstrateGoogle
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Composio InstantComposio
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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
Composio Instant is a cloud-based wallet that lets AI agents call paid tools without developers subscribing to each provider or configuring a separate API key for every service. Developers connect Instant to an agent session, choose which tools are available, and use a shared organization balance; charges are recorded in execution logs. Calls draw from that balance at a per-use rate, and new developer organizations receive a one-time $2 starter credit. Available services include web search, data enrichment, scraping, transcription, voice, weather, and document processing. Developers can connect through Composio’s SDKs and MCP-compatible agent clients, including Claude, ChatGPT, Codex, Cursor, Gemini CLI, Grok, and Visual Studio Code. Instant is intended for developers and teams building or operating AI agents that need on-demand access to external capabilities.
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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
Not Supported
Linux
Not Supported
Cloud
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
Developers and teams building or operating AI agents that need on-demand access to paid external tools.
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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
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
$29/month
New developer organizations receive a one-time $2 starter credit for eligible Instant tools. Adding funds beyond that credit requires Composio Pro at $29/month, which includes $29 in monthly usage credit that expires at month end. Instant tools are charged per call at rates that vary by tool; displayed examples are illustrative. Hosted premium-tool rates add a 5% platform fee to provider cost.
Free Version
Not 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 InformationComposio
Founded: 2023
United States
composio.dev/instant
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Alternatives |
Alternatives |
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Categories |
Categories |
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Integrations
Model Context Protocol (MCP)
Supported
Apollo
Not Supported
ChatGPT
Not Supported
Claude
Not Supported
Composio
Not Supported
Cursor
Not Supported
DataForSEO
Not Supported
Deepgram
Not Supported
ElevenLabs
Not Supported
Exa
Not Supported
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Integrations
Model Context Protocol (MCP)
Supported
Apollo
Supported
ChatGPT
Supported
Claude
Supported
Composio
Supported
Cursor
Supported
DataForSEO
Supported
Deepgram
Supported
ElevenLabs
Supported
Exa
Supported
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