Code & AI agent sandboxes: read the guide

Range

Open source toolSandbox

Use a remote environment before downloading it.

Homepage Docs Repository

Scanned 26 Oct 2026 · Schema v5 · features v21

Licence: Apache-2.0
Self-hosted; you pay for the infrastructure.
Free tier: Free to run
Isolation: Virtual machine
hypervisor, or nothing at all
Regions: —
Not disclosed on the public surface.
Capabilities: 6 / 61
4 partial · 48 fail · 0 not assessed
Agent readiness: 6/10 · 1/4
read · drive, pre-login surface

Advertised for

Agent code sandboxes · Interactive shells · Builds and tests · Model inference using downloaded on demand model files · Local development servers

Built for

Developers, then technical

· https://getrange.sh/ — terminal-first examples use range run, mounts, model images and host allowlists.
· https://github.com/andreygrehov/range/blob/master/docs/CLI.md — QEMU/KVM, namespaces, cgroups and root/native isolation caveats.

01 Website design Desktop public website · assessed 26 Oct 2026

Complete assessment.

The landing site recreates a blue text-mode file manager with filename navigation, yellow headings and a function-key bar. Documentation uses GitHub's conventional light repository preview. Pricing is not applicable to the free self-host-only tool.

Retro-computing

Landing page: captured
Pricing: not applicable
Docs: captured

02 Runtime Each fact carries its source; dots show confidence. Open a row for the evidence.

Isolation & lifecycle

Isolation primitive

Virtual machinehypervisor, or nothing at all

Persistence

Ephemeral VM sessions; native-only --name, --keep or --upper-dir preserve local writes. Shared host directories are read-write.

Snapshots / forks

Not documented

Resources & limits

Storage

Immutable EROFS base read lazily from OCI, Hugging Face, S3, HTTP, local files or EBS snapshots; local writable overlay and block cache.

Limits & quotas

Per-session --cpus, --memory, --storage-opt size and --timeout; VM sizing or native cgroup v2 limits. Defaults host-dependent; VM CPUs up to 8 and memory defaults 2–8 GiB.

GPU

NVIDIA GPU passthrough on Linux native only; VM runtime has no GPU.

Access

Deploy interface

clicontainer-image

SDK languages

None

Network & secrets

Egress controls

--network none; repeatable --allow-host HOST[:PORT], wildcard hosts supported, through a host-side HTTP proxy. HTTPS remains end to end.

Secrets

-e / --env KEY=VALUE or -e KEY passes environment variables into workloads. Core credentials remain on the host; no general on-the-wire workload credential injection documented.

Bring your own cloud

Placement & use

Jurisdiction

Advertised workloads

Agent code sandboxesInteractive shellsBuilds and testsModel inference using downloaded on demand model filesLocal development servers

03 Capabilities 6 pass · 4 partial · 48 fail · 61 of 61 assessed

Supported — Documented on the public surface and verified.
Partially supported — Exists with caveats: gated, thin, or enterprise-only.
Not supported — Checked and not offered.
Not assessed — Scanned before this capability was tracked. Not a lack.

Compute & storage 3/11

Persistent diskStorage that survives restart/stop (not ephemeral-only).

Partially supported

Object storageManaged S3-compatible / blob object store the platform PROVIDES to a user's workloads (buckets, presigned URLs). DISTINCT from persistent-disk (block/volume attached to an instance) and from a self-host dependency (source.self_host.deps[]=["object-storage"] is an infra dep to RUN an OSS tool — the opposite direction). SCOPE varies and matters: native first-class (Railway Buckets, Cloudflare R2) vs a sibling SKU / extension (Fly Tigris, Bunny Storage, DigitalOcean Spaces) — record which in the evidence quote / note. Admitted v15.

Not supported

Snapshots / forkingSnapshot or copy-on-write fork of a running instance (filesystem-only counts). Whether the snapshot also restores memory + running processes is recorded separately by memory-snapshot (v19).

Not supported

Live-state (memory) snapshotsA snapshot / checkpoint / pause captures a running instance's MEMORY and PROCESS state and restores it, so running processes continue where they left off instead of a freshly booted instance with the same files. Counts whether user-triggered (snapshot, checkpoint, pause-to-storage) or used to restore pre-initialised state (memory snapshots for fast cold starts). Distinct from snapshots-forks (any snapshot or fork, including filesystem-only; a product passing that key may still fail this one) and from scale-to-zero (an idle-cost property; suspension may or may not keep memory). Actor multiplexing (see scale-to-zero) records its live-state half here — only when the suspended actor's MEMORY/process state is what comes back, not a freshly booted worker with the actor's files.

Not supported

Scale to zeroIdle instances suspend at no / negligible cost. ACTOR MULTIPLEXING (many suspended stateful actors sharing a small pool of pre-warmed workers, woken on request — Agent Substrate, AX, kagent; Rivet's hibernating actors) has NO key of its own (proposal REJECTED v20) — score the idle-cost half HERE and the live-state half under memory-snapshot; the oversubscription ratio / density is a performance characteristic the registry does not key.

Not supported

GPU computeGPU-backed instances available.

Supported

Multi-regionCompute placeable in more than one geographic region.

Not supported

Sandbox templates / custom imagesBuild reusable sandbox/VM images from an OCI image or Dockerfile (a base you fork instances from).

Supported

Cloud-init / ignition configCustomise a VM / microVM / instance at boot via cloud-init (or ignition) user-data — the same boot-metadata interface as AWS/Azure/GCP. Inject packages, users, SSH keys, files, and run-commands declaratively at launch. Distinct from sandbox-templates (a PREBUILT image you fork instances from) — this is PER-LAUNCH declarative customisation, not a baked image.

Not supported

Desktop / computer-use sandboxA virtual desktop (GUI) for LLM computer-use — browser + desktop automation, often via noVNC/VNC.

Not supported

Selectable isolation runtimeThe user chooses the isolation runtime per workload / environment / sandbox from more than one option (e.g. microVM vs gVisor vs plain container, native namespaces vs gVisor, gVisor vs VM). Records the CHOICE; the isolation_primitive facet still records the best-evidenced primary. A platform that switches runtime automatically without a user choice (e.g. gVisor forced for GPU) does not pass on that alone.

Supported

Networking & delivery 1/9

Automatic HTTPSTLS endpoints provisioned automatically per workload.

Not supported

Built-in reverse proxyPlatform routes external traffic to workload services.

Partially supported

Custom domainsBring-your-own domain via CNAME/DNS.

Not supported

Public preview URLsShareable per-deploy / per-branch URLs.

Not supported

Direct public IPv6Per-instance stable public IPv6 for raw TCP/UDP (beyond a managed HTTPS proxy) — e.g. mosh / raw sockets.

Not supported

Egress controlsConfigurable OUTBOUND network policy — egress firewall / allowlist / egress proxy on traffic LEAVING a workload. Scoped to OUTBOUND only (v15): private-network REACHABILITY between a user's own services is private-networking, not this. Static-egress-IP belongs here (an outbound concept).

Supported

Private networkingA platform-internal private network between a user's OWN services — service-to-service connectivity, VPC, service mesh, and/or service discovery, not exposed to the public internet. DISTINCT from egress-controls (OUTBOUND firewall/allowlist), reverse-proxy (PUBLIC inbound ingress), and direct-ipv6 (per-instance PUBLIC addressing). Admitted v15.

Not supported

Email send / receiveSend and/or receive email from the workload.

Not supported

Edge KV storeA globally-replicated key-value store read from WITHIN an edge runtime at the PoP (low-latency, eventually-consistent) — Cloudflare Workers KV, Deno KV, Fastly KV Store, Akamai EdgeKV, Vercel Edge Config. Distinct from first-party-db (a managed DATABASE service you provision and connect to) and from http-query-api (HTTP access to an external store) — edge-kv is colocated with the edge compute and read at the edge.

Not supported

Developer access 1/10

Public APIDocumented programmatic API.

Not supported

OpenAPI specMachine-readable OpenAPI / Swagger spec published.

Not supported

CLIOfficial command-line tool.

Supported

SDKOfficial client library/libraries.

Not supported

SSH accessDirect SSH into workloads.

Not supported

Filesystem APIRemote file operations over the API (list/read/write/watch/copy/upload) without SSH.

Not supported

Git deployDeploy from a Git repo / push-to-deploy.

Not supported

Private container registryHosted private image registry.

Not supported

E2B-compatible APIDrop-in compatibility with the E2B sandbox API/SDKs — existing E2B client code runs against this product by changing the endpoint/domain + key, with no business-code changes. E2B itself passes as the reference implementation. Distinct from public-api / sdk (the product has its own API — this key says it also speaks another vendor's) and from self-host-oss (a self-hosted E2B-compatible server is scored on both).

Not supported

HTTP data APIQuery / read / write the stored DATA over plain HTTP/REST (or GraphQL) WITHOUT the native protocol driver (Postgres wire / Redis RESP) — agent- and edge-friendly data access via fetch(). The DATA plane; distinct from public-api (a control-plane / management API). Auto-generated-from-schema REST/GraphQL (PostgREST, pg_graphql) is a flavour of this.

Not supported

AI & agents 0/11

Built-in coding agentShips a first-party AI coding agent in the product.

Not supported

Agent skillsInstallable / declarable agent skills or tools.

Not supported

AI app builderPrompt-to-app / vibe-coding generation surface.

Not supported

MCP serverExposes a Model Context Protocol server for agents.

Not supported

MCP clientActs as an MCP client / consumes MCP tools.

Not supported

MCP-server hostingRun/host MCP servers as a workload on the platform (distinct from exposing a first-party MCP control server — that is mcp-server).

Not supported

LLM gatewayRoutes LLM API calls through the platform (multi-provider).

Not supported

BYOK for LLMsBring-your-own LLM provider keys.

Not supported

Model inference API (first-party)A FIRST-PARTY hosted LLM/model inference API — the provider serves its OWN catalogue of (usually open-weight) models behind a (typically OpenAI-compatible) endpoint, billed per token. Distinct from llm-gateway (a multi-PROVIDER proxy/router for YOUR calls to external providers like OpenAI/Anthropic) and from byok-llm (bring your own provider keys) — here the platform IS the inference provider, serving its own models.

Not applicable

Autonomous QA agentA first-party AUTONOMOUS AI agent that QA-TESTS a running app / implementation — exercising it like a real user (clicking through flows, checking behaviour) and reporting bugs/defects (often back to a coding agent, or before a human review). Distinct from built-in-agent (a code-AUTHORING agent — this one VERIFIES the result, it does not write the feature; a product can ship both), from ai-guided-code-review (organises a diff for a HUMAN to review — not an autonomous tester), and from observability (runtime metrics/logs, not active testing).

Not supported

Credential-injection proxyThe platform holds real secrets OUTSIDE the workload and injects them on the wire (an egress / broker proxy swaps a placeholder or phantom token for the real credential on matching outbound requests), so code running in the sandbox — e.g. an untrusted agent — never sees or can exfiltrate the real key. Distinct from secrets-management (storage + injection INTO the workload as env vars/files — the workload holds the secret) and from egress-controls (outbound allow/deny POLICY; a product can have an allowlist without injecting credentials, and vice versa).

Not supported

Preinstalled coding agentThe platform installs and launches a THIRD-PARTY coding agent (a harnesses.yml entry — Claude Code, Codex, OpenCode, Pi ...) inside a workspace/sandbox it provisions, with the agent's auth wired in (your own account or API key), so you start an agent session rather than an empty box. Distinct from built-in-agent (a FIRST-PARTY agent the vendor ships) and from harnesses[] (which records that a harness CAN target the product, not that the product runs it for you).

Not supported

Data 0/4

First-party databasePlatform-provided managed database.

Not supported

Database branchingCopy-on-write branch of a DATABASE (schema + data) as a dev-lifecycle primitive — branch your data like code, usually instant via a metadata operation. Distinct from snapshots-forks (forks a running compute INSTANCE / VM state) and from preview-environments (a full per-PR environment that may USE a DB branch). For a data product a CoW branch maps HERE, not to snapshots-forks.

Not supported

Vector searchFirst-class storage, indexing, and similarity search of vector embeddings — a native vector type/index or a managed vector DB. The data-layer primitive for RAG / semantic retrieval.

Not supported

Ephemeral instant DB (no-signup)Provision a working, usable instance via a single command / HTTP call with NO account, signup, or card — typically time-boxed (expires unless claimed). A zero-onboarding path an agent can hit directly.

Not supported

Platform & operations 0/5

Scheduled tasksCron / scheduled job primitive.

Not supported

Durable workflowsDurable execution / long-running workflow primitive.

Not supported

Preview environmentsA full EPHEMERAL environment spun up per PR / branch — compute + addons + (often) a DB branch — torn down on merge. More than preview-urls (which is just a shareable URL for one deploy).

Not supported

Built-in observabilityFirst-party metrics / logs / tracing / APM / profiling included in the platform (no third-party stack required to see what a workload is doing).

Partially supported

Managed CI/CD runnersPlatform-hosted, drop-in CI/CD runner VMs (GitHub Actions / GitLab), typically faster and cheaper than the CI vendor's own hosted runners, billed per runner-minute; isolated + ephemeral per job. Distinct from git-deploy (push-to-deploy of an APP) and scheduled-tasks (cron) — this is managed CI COMPUTE you point your existing pipelines at.

Not applicable

Project template marketplaceA marketplace / gallery of prebuilt PROJECT STARTER templates (apps or websites) a user clones or launches a new project from and then customises — the "start from a template" surface of a builder / PaaS. Distinct from sandbox-templates (a COMPUTE base IMAGE you fork runtime INSTANCES from — Dockerfile / OCI), from app-builder (the prompt-to-app GENERATION surface — a product can have both), and from one-click OSS-app catalogues / helm-addon-marketplace (deploy a FINISHED app as-is, not a starter you build on).

Not supported

Organisation & security 1/8

Built-in authPlatform-provided authentication / IAM for workloads.

Not supported

SSO / SAMLEnterprise single sign-on.

Not supported

Secrets managementFirst-class secrets storage / injection.

Partially supported

TeamsMulti-user team accounts.

Not supported

SharingShare a running workload/resource via link (optionally gated).

Not supported

BYOCRuns inside the customer's own cloud account.

Not applicable

Deploy into customers' VPCsA SaaS vendor uses the platform to deploy and operate ITS software inside ITS CUSTOMERS' cloud accounts / VPCs (nested or "customer BYOC"), managed from the vendor's control plane. Distinct from byoc (your own workloads in your own cloud account).

Not supported

Workload identityThe platform gives each workload its own verifiable identity (OIDC token, SPIFFE SVID, cloud IAM federation) that it exchanges for short-lived credentials, so no long-lived static secret is stored or injected. Distinct from secrets-management (stores / injects static secrets) and credential-injection-proxy (swaps real secrets in on the wire).

Not supported

Self-host / OSS coreOpen-source core that can be self-hosted.

Supported

Proposed, not verified

Capabilities the scan saw but the registry does not track yet. A key is admitted only once two distinct products exhibit it. These are not scored.

Use a remote environment before downloading itlazy-environment-streaming
“Only the bytes your program reads cross the network.” getrange.sh
Every command, any versionon-demand-command-images
“A command Ubuntu lacks comes from the image that has it.” getrange.sh

04 Agent readiness Pre-login surface · counts, not a grade

Can an agent read it?

parse-ability · docs, metadata, machine-readable surfaces

6/10

2 full · 4 partial · 60% of applicable checks

llms.txt
Not supported
“https://getrange.sh/llms.txt — HTTP 404.”
llms-full.txt
Not supported
“https://getrange.sh/llms-full.txt — HTTP 404.”
robots.txt AI policy
Partially supported
“https://getrange.sh/robots.txt — HTTP 404; default-allow, no explicit AI policy.”
JSON-LD
Not supported
“https://getrange.sh/ — no application/ld+json script in retained HTML.”
Sitemap
Not supported
“https://getrange.sh/sitemap.xml — HTTP 404; absent robots has no alternate pointer.”
Meta tags
Partially supported
“https://getrange.sh/ — descriptive title and meta description, but no Open Graph metadata.”
Markdown negotiation
Partially supported
“GitHub raw README and guide provide Markdown; website Accept: text/markdown stays text/html and /index.md returns 404.”
Content efficiency
Supported
“https://getrange.sh/ — static semantic HTML, substantive text exceeds 5% of HTML bytes.”
Docs discoverable
Partially supported
“https://getrange.sh/ — first-class Range/GitHub link; guide and CLI links live in repository README, not directly in website navigation.”
Machine-readable pricing
Not applicable
“Free Apache-2.0 self-host-only tool; no hosted tier or pricing page.”
No anti-bot wall
Supported
“Current homepage, raw docs and browser GitHub guide accessible without bot challenge; ordinary missing paths are 404, not blocks.”

Can an agent drive it?

act-ability · APIs, SDKs, MCP, credentials, webhooks

1/4

1 full · 0 partial · 25% of applicable checks

Public API
Not applicable
“No hosted management API/account/key issuance: local self-host CLI. https://github.com/andreygrehov/range/blob/master/docs/ARCHITECTURE.md explicitly says no Range service exists.”
OpenAPI spec
Not applicable
“No hosted management API/account/key issuance: local self-host CLI. https://github.com/andreygrehov/range/blob/master/docs/ARCHITECTURE.md explicitly says no Range service exists.”
MCP server
Not supported
“https://github.com/andreygrehov/range/blob/master/docs/CLI.md — no advertised mcp_server surface; site /.well-known/mcp and /agents.md HTTP 404.”
SDK packages
Not supported
“https://github.com/andreygrehov/range/blob/master/docs/CLI.md — no advertised sdk_packages surface; site /.well-known/mcp and /agents.md HTTP 404.”
Auth documented
Not applicable
“No hosted management API/account/key issuance: local self-host CLI. https://github.com/andreygrehov/range/blob/master/docs/ARCHITECTURE.md explicitly says no Range service exists.”
Self-serve credentials
Not applicable
“No hosted management API/account/key issuance: local self-host CLI. https://github.com/andreygrehov/range/blob/master/docs/ARCHITECTURE.md explicitly says no Range service exists.”
Webhooks
Not applicable
“No hosted management API/account/key issuance: local self-host CLI. https://github.com/andreygrehov/range/blob/master/docs/ARCHITECTURE.md explicitly says no Range service exists.”
CLI tool
Supported
“https://github.com/andreygrehov/range/blob/master/docs/CLI.md — official stable CLI contract, installable binary/source.”
Error model
Not applicable
“No hosted management API/account/key issuance: local self-host CLI. https://github.com/andreygrehov/range/blob/master/docs/ARCHITECTURE.md explicitly says no Range service exists.”
Rate limits documented
Not applicable
“No hosted management API/account/key issuance: local self-host CLI. https://github.com/andreygrehov/range/blob/master/docs/ARCHITECTURE.md explicitly says no Range service exists.”
Agent config files
Not supported
“https://github.com/andreygrehov/range/blob/master/docs/CLI.md — no advertised agent_config surface; site /.well-known/mcp and /agents.md HTTP 404.”

05 Coding harnesses Which agents and IDEs are documented to run here

Advertised integrations 0

The public surface names no coding harness as supported or documented-to-run-here.

Plausible compatibility 0

Derived, not stored: the product passes SSH access, so any CLI coding agent is installable inside it. This is plausible compatibility, not a supported integration.

No general shell access documented, so nothing is derived. Absence is not unsupported.

06 Compliance & regions Standards held, with ordinal rigor; never a score

Certifications held 0

No attestations found on the public surface. Empty means nothing is advertised, after checking, not that nothing was checked.

Regions —

No region list captured.

07 Open source Apache-2.0 · fetched by machine, not quoted from marketing

Licence & repository

Licence: Apache-2.0OSI
Primary language: Go
Stars: 4
Forks: 0
Created: 26 Sep 2026
Archived: No

Activity

Last commit: 15 Oct 2026
Latest release: v0.13.0 · 15 Oct 2026
Issues open / closed: 0 / 0

Eight recent release records between 2026-10-07 and 2026-10-15, including VM asset tag vm-4; several CLI releases on October 15. Latest published CLI release v0.13.0.

Fetched via gh on 26 Oct 2026.

Self-hosting

Methods: binarysource-build
You operate: qemukvmvirtiofsdutil-linux

Free under Apache-2.0 plus operator hardware/storage/network costs; no hosted tier. Linux VM default requires QEMU/KVM and root or kvm group; virtiofsd for directory shares. Linux native fallback requires root, nbd/erofs/overlay and util-linux and is NOT a security boundary. Apple silicon macOS 14+ uses Virtualization.framework; Intel Mac requires Lima. GPU, --name, --keep and --upper-dir require native execution and VM mode rejects them. WSL2 is untested. Dependencies vary by platform, not all are universal.

Documentation signals 5/8

SupportedQuickstart
Not supportedAPI reference
SupportedSelf-host guide
SupportedChangelog
Not supportedOpenAPI
Not supportedllms.txt
SupportedExamples
SupportedArchitecture doc

08 Company & presence Facts only, not scored

Company

Headquarters: Not disclosed
Founded: —
Team size: Not disclosed
Hiring: Unknown

Notable people

Andrey Grehov — author; homepage says software engineer at AWS, Range is personal project.

Activity

Last release: 2026-10-15T10:31:49Z github.com
Last blog post: —

Presence 2

Links found on the public surface scanned; not an exhaustive search.

09 Sources & method How this entry was produced

Public surface only

Everything here was read from getrange.sh's unauthenticated pages, docs, pricing and repository on 26 Oct 2026. Nothing behind a login was used.

Statuses, not scores

Capabilities are pass, partial or fail against a written rubric (features v21). “Not assessed” means the scan predates the key.

Confidence is separate

Each fact carries its own confidence. Low-confidence facts are shown, never hidden, so you can weigh them.

Schema: scan v5
Features registry: v21
Keys tracked today: 61
Assessed on this entry: 61

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