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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.

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.

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

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

Audience

Platform and infrastructure teams building services that run isolated agent or code-execution workloads on Kubernetes.

Audience

Developers and teams building or operating AI agents that need on-demand access to paid external tools.

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Not Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

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

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

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Google
Founded: 1998
United States
github.com/agent-substrate/substrate

Company Information

Composio
Founded: 2023
United States
composio.dev/instant

Alternatives

Alternatives

runx

runx

0state
Cotlet

Cotlet

Take Group sp. z o.o.
Sprites

Sprites

Fly.io

Categories

Categories

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
Findymail Not Supported
Firecrawl Not Supported
Gemini CLI Not Supported
Google Cloud Filestore Supported
Google Cloud Platform Supported
Grok Not Supported
Mathpix Not Supported
People Data Labs Not Supported
Tavily Not Supported
Visual Studio Code Not Supported

Integrations

Model Context Protocol (MCP) Supported
Apollo Supported
ChatGPT Supported
Claude Supported
Composio Supported
Cursor Supported
DataForSEO Supported
Deepgram Supported
ElevenLabs Supported
Exa Supported
Findymail Supported
Firecrawl Supported
Gemini CLI Supported
Google Cloud Filestore Not Supported
Google Cloud Platform Not Supported
Grok Supported
Mathpix Supported
People Data Labs Supported
Tavily Supported
Visual Studio Code Supported
Claim Agent Substrate and update features and information
Claim Agent Substrate and update features and information
Claim Composio Instant and update features and information
Claim Composio Instant and update features and information