# AgentSandboxes

> A neutral index of cloud sandboxes for AI agents.

> **Check before you choose.** Vendor specs and prices change. Follow the cited source on each listing before you pick a provider.

AgentSandboxes lists 25 sandbox providers. Updated 2026-10-21. Every page has a markdown copy: add `.md` to its URL, or send `Accept: text/markdown`. The home page copy is [index.md](https://agentsandboxes.fyi/index.md).

## Regions

- [Global](https://agentsandboxes.fyi/global.md): 25 sandbox providers

## Sandbox providers by city

- [Online, Global](https://agentsandboxes.fyi/global/online.md): 25 sandbox providers

## Categories

- [Code execution](https://agentsandboxes.fyi/category/code-execution.md): 19 sandbox providers
- [Dev environments](https://agentsandboxes.fyi/category/dev-environments.md): 8 sandbox providers
- [Open source](https://agentsandboxes.fyi/category/open-source.md): 8 sandbox providers
- [Browser sessions](https://agentsandboxes.fyi/category/browser.md): 3 sandbox providers
- [Computer use](https://agentsandboxes.fyi/category/computer-use.md): 2 sandbox providers
- [Evals and RL](https://agentsandboxes.fyi/category/evals-rl.md): 2 sandbox providers

## Free tools

- [Sandbox cost estimator](https://agentsandboxes.fyi/tools/sandbox-cost-estimator.md): Estimate a monthly sandbox compute bill from runs, seconds, vCPU, GiB and the provider's published rates.
- [Compare sandboxes](https://agentsandboxes.fyi/tools/compare-sandboxes.md): Compare two or three sandbox providers side by side: isolation, cold start, persistence and price.

## Guides

- [Common mistakes and questions about sandbox providers](https://agentsandboxes.fyi/guides/common-mistakes-and-questions.md): Six mistakes that teams make when picking a cloud sandbox provider and the questions to ask before you commit, based on specs recorded in this index.
- [How to compare sandbox providers](https://agentsandboxes.fyi/guides/how-to-compare-sandbox-providers.md): Compare sandbox providers by isolation, cold start, persistence, GPU support, pricing model and free tier using a standard checklist and the compare tool on this site.
- [What a sandbox provider listing shows](https://agentsandboxes.fyi/guides/how-to-read-a-listing.md): Every listing on this site records the specs a provider publishes on its own docs or pricing page: isolation, cold start, persistence, GPU, pricing and more. Each row links the cited source.
- [Sandbox providers for global agent teams](https://agentsandboxes.fyi/guides/sandbox-providers-for-global-agent-teams.md): Every provider in this index serves the Online or Global scope. This guide covers what that means for latency, data residency, team access and compliance.

## About this site

- [About AgentSandboxes](https://agentsandboxes.fyi/about.md): What AgentSandboxes is, where its data comes from, and how a listing is checked.
- [Contact AgentSandboxes](https://agentsandboxes.fyi/contact.md): How to reach AgentSandboxes: our email address, how fast we reply, and how to add or fix a listing.
- [Link exchange with AgentSandboxes](https://agentsandboxes.fyi/link-exchange.md): Swap links with AgentSandboxes for free. You link to us. We check the link. An approved site gets a partners page link, a guide mention, or a blog mention.
- [The sandbox newsletter](https://agentsandboxes.fyi/newsletter): A short email now and again: a new provider, a pricing change that matters, and one source note. No noise.

## Data sources

- [Vendor documentation and pricing pages, as described on our About page](https://agentsandboxes.fyi/about): license Fact-level data (prices, limits, isolation classes); open-licensed doc sets include Cloudflare docs (CC BY-4.0) and Fly.io docs (Apache-2.0), refreshed monthly

## API

- [OpenAPI 3.1 description](https://agentsandboxes.fyi/api/v1/openapi.json): the read API as JSON
- [API guide](https://agentsandboxes.fyi/developers): endpoints, examples, rate limits and how to credit the data
- [MCP server card](https://agentsandboxes.fyi/.well-known/mcp/server-card.json): the MCP server at https://agentsandboxes.fyi/mcp and its tools
- [Agent card](https://agentsandboxes.fyi/.well-known/agent-card.json): the A2A agent at https://agentsandboxes.fyi/a2a and its skills
- [Agent skills](https://agentsandboxes.fyi/.well-known/agent-skills/index.json): a skill that explains the API and the MCP server
- [API catalog](https://agentsandboxes.fyi/.well-known/api-catalog): the API description and the guide as an RFC 9727 linkset
- [WebMCP manifest](https://agentsandboxes.fyi/webmcp): the tools as a manifest

## Optional

- [Every sandbox provider with its facts](https://agentsandboxes.fyi/llms-full.txt)
- [Sitemap](https://agentsandboxes.fyi/sitemap.xml): every indexable page