--- title: Islo slug: islo url: "https://toolweight.com/tools/islo" homepage: "https://islo.dev" categories: sandbox-providers last_verified: 2026-11-07 dataset_version: 0738be72 license: CC-BY-4.0 --- # Islo > Per-agent isolated cloud sandboxes with enterprise policy controls, from Incredibuild. - Gives each coding agent an isolated cloud environment governed by policies over codebases, infrastructure and connected systems - Capability cells transcribed from a competitor's table: BYO repos with a setup script, SSH, Docker in the guest, 24/7, dedicated IPv4, full TCP/UDP with your own domain - Nothing here is a Toolweight measurement; fields the table omits are left unknown ## Identity | | | | --- | --- | | Name | Islo | | Company | Incredibuild | | One-liner | Per-agent isolated cloud sandboxes with enterprise policy controls, from Incredibuild. | | Site | https://islo.dev | | Compared in | 1 | ## Where it is compared ### [Sandbox providers](https://toolweight.com/compare/sandbox-providers) Ranked **#12 of 19** on default weights. | Field | Value | Confidence | Verified | Source | Note | Permalink | | --- | --- | --- | --- | --- | --- | --- | | Cold start | - | Unknown | - | - | toolweight has not measured Islo, and the comparison table it appears in publishes no boot figure for it. | https://toolweight.com/compare/sandbox-providers#islo--cold_start_measured | | Cold start (claimed) | - | Unknown | - | - | Absent from the "<500ms time to VM-ready" row of a competitor's table, which is not the same as Islo claiming anything either way. | https://toolweight.com/compare/sandbox-providers#islo--cold_start_claimed | | Isolation | microvm | Vendor-claimed | 2026-11-07 | https://islo.dev/security | - | https://toolweight.com/compare/sandbox-providers#islo--isolation_tech | | Root in guest | ● | Inferred | 2026-07-23 | https://box.ascii.dev/compare | Derived from the "Docker inside the VM" row: a Docker daemon in the guest implies root. The table claims Docker, not root. Transcribed from box's comparison table, a competitor's chart, not Islo's own documentation, and not verified by toolweight. | https://toolweight.com/compare/sandbox-providers#islo--root_access | | Egress control | allowlist | Vendor-claimed | 2026-11-07 | https://islo.dev/gateway | - | https://toolweight.com/compare/sandbox-providers#islo--egress_control | | Max runtime | - | Unknown | - | - | The "No session cap / runs 24/7" row is a marketing statement in a competitor's chart, not a runtime ceiling Islo publishes. Left unknown rather than awarded this page's 24 h maximum. | https://toolweight.com/compare/sandbox-providers#islo--max_runtime | | Persistent FS | ◐ | Vendor-claimed | 2026-11-07 | https://docs.islo.dev/concepts/sandbox-lifecycle.md | - | https://toolweight.com/compare/sandbox-providers#islo--persistent_fs | | Snapshot & fork | ◐ | Vendor-claimed | 2026-11-07 | https://docs.islo.dev/cli/snapshots.md | - | https://toolweight.com/compare/sandbox-providers#islo--snapshot_fork | | Custom images | ◐ | Inferred | 2026-07-23 | https://box.ascii.dev/compare | Derived from "BYO repos + arbitrary setup script", a base extended by a setup script, this field's partial. The mapping is ours. From a competitor's table, unverified. | https://toolweight.com/compare/sandbox-providers#islo--custom_images | | GPU | - | Unknown | - | - | Not a row in the table. | https://toolweight.com/compare/sandbox-providers#islo--gpu | | Runtimes | - | Unknown | - | - | Not a row in the table. | https://toolweight.com/compare/sandbox-providers#islo--language_runtimes | | Preview URLs | ◐ | Inferred | 2026-07-23 | https://box.ascii.dev/compare | Derived from two rows that are not about preview URLs, "Dedicated IPv4 per VM" and "Full TCP/UDP + BYO domain": reachable ports on a domain you own rather than a first-party HTTPS URL from the API. The mapping is ours. Competitor's table, unverified. | https://toolweight.com/compare/sandbox-providers#islo--preview_urls | | Browser inside | ● | Vendor-claimed | 2026-11-07 | https://islo.dev/glossary/islo-machine | - | https://toolweight.com/compare/sandbox-providers#islo--browser_in_sandbox | | File up/download | ◐ | Inferred | 2026-07-23 | https://box.ascii.dev/compare | Derived from the "SSH access" row: scp and sftp follow from SSH, and CLI-only access is this field's partial. No first-party file API is described. Competitor's table, unverified. | https://toolweight.com/compare/sandbox-providers#islo--file_transfer_api | | Sydney region | - | Unknown | - | - | The table says nothing about regions. | https://toolweight.com/compare/sandbox-providers#islo--sydney_region | | Concurrent limit | - | Unknown | - | - | Absent from the "1000+ concurrent VMs ergonomically" row; no figure is given. | https://toolweight.com/compare/sandbox-providers#islo--max_concurrency | | MCP server | - | Unknown | - | - | Not a row in the table. | https://toolweight.com/compare/sandbox-providers#islo--mcp_server | | SDKs | python, typescript, cli | Vendor-claimed | 2026-11-07 | https://docs.islo.dev/concepts/sandbox-lifecycle.md | - | https://toolweight.com/compare/sandbox-providers#islo--sdk_languages | | Streaming output | - | Unknown | - | - | Not a row in the table. | https://toolweight.com/compare/sandbox-providers#islo--streaming_stdout | | Price / hour | $0.3/hr | Vendor-claimed | 2026-11-07 | https://islo.dev/llms.txt | - | https://toolweight.com/compare/sandbox-providers#islo--price_per_hour | | Meter | per-hour | Vendor-claimed | 2026-11-07 | https://islo.dev/llms.txt | - | https://toolweight.com/compare/sandbox-providers#islo--billing_granularity | | Idle cost | free-when-stopped | Vendor-claimed | 2026-11-07 | https://islo.dev/pricing | - | https://toolweight.com/compare/sandbox-providers#islo--idle_billing | | GitHub stars | - | Unknown | - | - | - | https://toolweight.com/compare/sandbox-providers#islo--github_stars | | Funding | - | Unknown | - | - | - | https://toolweight.com/compare/sandbox-providers#islo--funding_stage | | Shipped | - | Unknown | - | - | - | https://toolweight.com/compare/sandbox-providers#islo--launched | | Positioning | An isolated cloud environment per coding agent, with enterprise policy control over what it can reach. | Vendor-claimed | 2026-07-23 | https://islo.dev | Paraphrased from Incredibuild's own launch material. The capability cells on this row, unlike this one, come from a competitor's comparison table. | https://toolweight.com/compare/sandbox-providers#islo--positioning | **Verdict.** An enterprise governance pitch this rival's table cannot capture; verify from Incredibuild's own documentation before shortlisting. ## Alternatives - [Blaxel](https://toolweight.com/tools/blaxel), Agent-first cloud claiming ~25 ms microVM boots from snapshots. - [boat](https://toolweight.com/tools/boat), Persistent Ubuntu VMs for agents with SSH, Docker and disk-level fork, billed per second. - [Cloudflare Sandbox](https://toolweight.com/tools/cloudflare-sandbox), Container sandboxes driven from a Worker, addressed through Durable Objects. - [CodeSandbox SDK](https://toolweight.com/tools/codesandbox-sdk), Firecracker VMs with memory snapshots, from the online IDE, now owned by Together AI. - [Daytona](https://toolweight.com/tools/daytona), Sub-second container sandboxes for agent workloads, from a team that built a dev-env manager. - [Self-hosted Firecracker](https://toolweight.com/tools/diy-firecracker), The baseline: Firecracker on your own metal, plus every hard part you now own. - [E2B](https://toolweight.com/tools/e2b), Open-source Firecracker sandboxes with Python and TypeScript SDKs for AI agents. - [exe.dev](https://toolweight.com/tools/exe-dev), Persistent VMs you SSH into, with root, apt and systemd, on a flat monthly plan. - [Fly.io Machines](https://toolweight.com/tools/fly-machines), Raw Firecracker microVMs with a REST API, durable volumes and 35+ regions. - [Freestyle](https://toolweight.com/tools/freestyle), Run untrusted JavaScript and full dev servers, with git hosting and domains built in. - [GitHub Codespaces](https://toolweight.com/tools/github-codespaces), Devcontainer-backed cloud VMs built for humans, occasionally repurposed for agents. - [Modal](https://toolweight.com/tools/modal), Serverless Python compute with a Sandbox API bolted onto a GPU-first platform. ## Logo & brand colours SVG files: https://toolweight.com/teams/islo/logo.svg and https://toolweight.com/teams/islo/mono.svg. JSON: https://toolweight.com/api/v1/brands/islo. | Hex | oklch | | --- | --- | | #9c66e5 | oklch(62.6% 0.187 300.7) | | #230766 | oklch(26.3% 0.145 283.7) | | #d3edfa | oklch(93.1% 0.033 229.3) | | #f9a207 | oklch(78.0% 0.167 71.0) | | #ffd283 | oklch(88.6% 0.110 80.7) | ## Licence and attribution Data from Toolweight (https://toolweight.com), licensed CC-BY-4.0. - Licence: [CC-BY-4.0](https://creativecommons.org/licenses/by/4.0/) - Canonical HTML: https://toolweight.com/tools/islo - Machine-readable: https://toolweight.com/tools/islo.md · https://toolweight.com/api/v1 · https://toolweight.com/mcp - Toolweight takes no affiliate revenue and sells no placements.