{ "data": { "a": { "slug": "freestyle", "name": "Freestyle", "vendor": "Freestyle Cloud Inc.", "vendorUrl": "https://www.freestyle.sh", "kind": "http-api", "category": "code-sandboxes", "summary": "Freestyle runs full Linux virtual machines for AI agents, with pause and resume that keeps memory, snapshots, private networks and domains. Agents drive it through a REST API, a TypeScript SDK and a CLI from one npm package.", "url": "https://www.anchorterminal.com/tools/freestyle", "markdownUrl": "https://www.anchorterminal.com/tools/freestyle.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/freestyle.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/freestyle.json", "license": "Proprietary service with no published terms of service found. The `freestyle` SDK and CLI package on npm is MIT", "transports": [ "http" ], "remoteUrl": "https://api.freestyle.sh/v5", "packages": [ { "registry": "npm", "name": "freestyle" } ], "auth": "api-key", "authNotes": "Bearer API key in the `Authorization` header, read by the SDK and CLI from `FREESTYLE_API_KEY`. Keys are created after a browser login with `freestyle tokens create`, shown once, and listed and revoked from the CLI. No scopes or expiry on account keys were found. For end users, an identity access token in the `x-freestyle-identity-access-token` header reaches only the VMs and Linux users granted to it, on the exec and terminal routes.", "pricing": "freemium", "pricingNotes": "Free plan at $0 with 200 vCPU-hours, 400 GiB-hours of memory, 60,000 GiB-hours of storage and 50 GB of transfer a month, up to 10 concurrent VMs, no card needed. Usage beyond that needs Hobby ($50 a month minimum, counted as usage) or Pro ($500). $0.04032 a vCPU-hour, $0.0129 a GiB-hour of memory, $0.000086 a GiB-hour of storage and $0.02 a GB of transfer, metered per second on allocated resources. Enterprise is priced by sales (https://www.freestyle.sh/pricing.md, checked 2026-10-08).", "priceSummary": "$0.0403 / vCPU-hr", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the docs, the OpenAPI file or the pricing page (checked 2026-10-08).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": 71758, "pypiWeekly": null, "asOf": "2026-10-08" }, "docsUrl": "https://www.freestyle.sh/docs", "llmsTxt": "https://www.freestyle.sh/llms.txt", "openapi": "https://www.freestyle.sh/openapi.json", "capabilities": [ "sandbox.code", "sandbox.fs", "sandbox.persist", "sandbox.browser" ], "tags": [ "hosted", "no-card", "openapi", "llms-txt", "typescript", "cli", "vm", "snapshots", "enterprise" ], "lastRelease": "2026-09-27", "graded": true, "anchor": { "graded": true, "score": 58.5, "grade": "C", "agentReady": false, "rank": 520, "ranked": true, "rankOf": 842, "categoryRank": 10, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 69, "maintenance": 71, "payments": 45, "reliability": 43, "schema": 86, "security": 53, "transparency": 41 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-08" }, "negative": 0, "verdict": "A public OpenAPI 3.1 file describes 88 operations with a stable error code on every failure, and per-VM identity tokens keep the team API key away from end users. No terms of service, product privacy policy, request rate limit or incident history was found, and the only SDK is TypeScript.", "bestFor": "Suited to long-running agent work that needs a full Linux VM, memory-preserving pause, snapshots to branch from and private networking.", "strengths": [ "Public OpenAPI 3.1 file with 88 `/v5` operations, each with a description and named error codes per status", "A new VM has no inbound or outbound network access until firewall rules allow it", "Identity access tokens limited to granted VMs and Linux users, revocable without rotating the team API key", "Pausing keeps memory and disk, and a paused VM bills for storage only", "Free plan at $0 with 200 vCPU-hours a month, and per-unit prices published without a login" ], "weaknesses": [ "No terms of service or service agreement found on the site, and the privacy policy covers the website only", "The status page shows three components with no incident history", "No request rate limit, Retry-After guidance or idempotency keys found in the docs or the OpenAPI file", "No security.txt, disclosure policy, bug bounty or SOC 2 statement found. Audit logs are Enterprise only", "TypeScript is the only SDK, and the CLI repository linked from the site last changed on 22 May 2025" ], "agentNotes": [ "Send a `firewall` object on every `POST /v5/vms`. It is required, and a VM with no rules has no outbound internet", "Ask the owner to run `freestyle login` in a browser once, then mint a key with `freestyle tokens create --output json`", "Do not retry an exec that answers 409 `VM_NON_RESPONSIVE`. The command may already have run", "Keep `exec-await` under its 300,000 ms cap and use a PTY session or `x-freestyle-background-after-secs` for longer work", "Call the `/v5` paths. The unversioned duplicates in the OpenAPI file are marked deprecated" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "C", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 58.5 } ], "editorialScores": { "ergonomics": 69, "maintenance": 71, "payments": 45, "reliability": 43, "schema": 86, "security": 53, "transparency": 20 }, "provenanceScore": 62 }, "connect": { "install": "npm install freestyle@latest # CLI without installing: npx freestyle@latest --help" }, "letme": { "capability": "https://letme.dev/sandbox.code", "tool": "https://letme.dev/freestyle" }, "area": "agent-runtime", "unitPrices": [ { "item": "vCPU", "unit": "vcpu-hour", "usd": 0.04032, "note": "Memory extra at $0.0129 a GiB-hour. 200 vCPU-hours a month included" }, { "item": "Data transfer", "unit": "gb", "usd": 0.02, "note": "50 GB a month included on Free, 500 GB on Hobby and Pro" }, { "item": "Hobby plan", "unit": "month", "usd": 50, "note": "Monthly minimum, counted as usage" }, { "item": "Pro plan", "unit": "month", "usd": 500, "note": "Monthly minimum, counted as usage" } ], "provenance": { "legalEntity": "Freestyle Cloud Inc.", "domain": "freestyle.sh", "domainRegistered": "2024-04-11", "endpointOnVendorDomain": true, "terms": "", "privacy": "", "statusPage": "https://www.freestyle.sh/status", "changelog": "https://www.freestyle.sh/changelog", "securityTxt": "none", "checked": "2026-10-08", "notes": [ "The privacy policy (last updated 15 June 2025) names Freestyle Cloud Inc. and says it covers the website at freestyle.sh. It is not linked here because it does not govern the product.", "No terms of service or service agreement was found. `/terms`, `/tos` and `/legal` answer 404 and the sitemap lists no legal page other than the privacy policy.", "The API answers at https://api.freestyle.sh/v5, a freestyle.sh subdomain. One unauthenticated request returned 401 with a `code` and `message`.", "www.freestyle.sh/.well-known/security.txt returns 404.", "RDAP for freestyle.sh gives a registration date of 2024-04-11 and a transfer on 11 March 2026.", "The status page is the vendor's own, with three components and no incident history." ], "score": 62 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/freestyle.json", "live": { "slug": "freestyle", "probe": { "target": "https://api.freestyle.sh/v5", "method": "get", "lastAt": "2026-10-09T10:42:43.668932977Z", "lastOk": true, "lastStatus": 401, "lastMs": 652, "lastNote": "asks for credentials", "authRequired": true, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 576, "p95ms24h": 652, "samples24h": 33, "samples30d": 33, "days": [ { "date": "2026-10-09", "probes": 33, "ok": 33 } ] }, "vendorStatus": { "page": "https://www.freestyle.sh/status", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-10-09T07:57:56.720133529Z" }, "updatedAt": "2026-10-09T10:42:43.668932977Z" } }, "answer": "Vercel Sandbox scores 69.6 (B) on agent readiness against Freestyle's 58.5 (C), and leads in 4 of 7 scored categories. Freestyle leads on schema \u0026 documentation and payments \u0026 pricing.", "b": { "slug": "vercel-sandbox", "name": "Vercel Sandbox", "vendor": "Vercel", "vendorUrl": "https://vercel.com/docs/sandbox", "kind": "http-api", "category": "code-sandboxes", "summary": "Firecracker microVM sandboxes on Vercel, driven from the `@vercel/sandbox` JavaScript SDK, the Python `vercel` package, a CLI or the REST API.", "url": "https://www.anchorterminal.com/tools/vercel-sandbox", "markdownUrl": "https://www.anchorterminal.com/tools/vercel-sandbox.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/vercel-sandbox.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/vercel-sandbox.json", "repo": "https://github.com/vercel/sandbox", "license": "Apache-2.0", "transports": [ "http" ], "remoteUrl": "https://api.vercel.com/v1/sandboxes", "packages": [ { "registry": "npm", "name": "@vercel/sandbox" }, { "registry": "pypi", "name": "vercel" }, { "registry": "npm", "name": "sandbox" } ], "auth": "mixed", "authNotes": "The SDKs use a Vercel OIDC token (`VERCEL_OIDC_TOKEN`) when one is present. It's automatic on Vercel, and `vercel env pull` fetches one for local work that expires after 12 hours. Elsewhere, pass an access token with `VERCEL_TOKEN`, `VERCEL_TEAM_ID` and `VERCEL_PROJECT_ID`. The REST API takes the access token as a Bearer header.", "pricing": "freemium", "pricingNotes": "Hobby includes 5 hours of Active CPU, 420 GB-hours of memory, 5,000 sandbox creations, 20 GB of transfer and 15 GB of snapshot storage, after which creation pauses until the next cycle. Pro and Enterprise pay $0.128 an Active CPU hour, $0.0212 a GB-hour of provisioned memory, $0.60 per million creations, $0.08 a GB-month of snapshot storage and $0.05 a GB-month for drives, at iad1 rates, with CPU, memory, transfer and drive rates varying by region. Pro usage draws first on the plan's $20 monthly credit. Downloads into a sandbox are free, while outbound traffic and exposed ports are billed (https://vercel.com/docs/sandbox/pricing).", "priceSummary": "$0.128 / vCPU-hr", "where": "hosted", "x402": { "level": "no", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": 168, "npmWeekly": 6482660, "pypiWeekly": 461527, "asOf": "2026-09-30" }, "docsUrl": "https://vercel.com/docs/sandbox", "llmsTxt": "https://vercel.com/llms.txt", "capabilities": [ "sandbox.code", "sandbox.fs", "sandbox.persist" ], "tags": [ "hosted", "freemium", "free-tier", "typescript", "python", "llms-txt", "enterprise" ], "lastRelease": "2026-09-11", "graded": true, "anchor": { "graded": true, "score": 69.6, "grade": "B", "agentReady": false, "rank": 168, "ranked": true, "rankOf": 842, "categoryRank": 4, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 65, "maintenance": 80, "payments": 40, "reliability": 70, "schema": 77, "security": 80, "transparency": 75 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": 0, "verdict": "Active CPU billing, so waiting on model responses costs only memory. Tied to a Vercel team and project even when called from elsewhere, and access tokens reach the whole team.", "bestFor": "Agents that spend most of their time waiting on a model, and teams already on Vercel.", "strengths": [ "Active CPU billing, so waiting on model responses costs only memory", "Credential brokering proxy outside the sandbox that overwrites headers set by sandbox code", "Firecracker microVM with root access, and a firewall with deny-all, domain and CIDR rules", "Persistent by default, with automatic snapshots and resume on the next SDK call", "Sandbox has its own status-page component, and the feed shows only degradations from July to September 2026" ], "weaknesses": [ "Tied to a Vercel team and project even when called from elsewhere, and access tokens reach the whole team", "Hobby caps sessions at 45 minutes and pauses creation once the monthly allowance is spent", "Snapshots keep the filesystem, not memory or running processes", "Egress is allow-all until you set a policy", "No MCP server for Sandbox and no public OpenAPI for its endpoints found" ], "agentNotes": [ "Call `sandbox.stop()` when the task is done. Memory bills until the session ends", "Use `Sandbox.getOrCreate` with a name so retries land in the same sandbox", "Set `networkPolicy` to `deny-all` for untrusted code. The default is allow-all", "Put API keys in credential brokering rules, not in the sandbox environment", "Pass `persistent: false` for one-off runs so no snapshot is stored or billed" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 3.5, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 69.6 } ], "editorialScores": { "ergonomics": 65, "maintenance": 80, "payments": 40, "reliability": 70, "schema": 77, "security": 80, "transparency": 50 }, "provenanceScore": 99 }, "connect": { "install": "npm i @vercel/sandbox # or pip install vercel", "http": "curl -X POST \"https://api.vercel.com/v1/sandboxes?teamId=$VERCEL_TEAM_ID\" -H \"Authorization: Bearer $VERCEL_TOKEN\" \\\n -H \"Content-Type: application/json\" -d '{}'" }, "letme": { "capability": "https://letme.dev/sandbox.code", "tool": "https://letme.dev/vercel-sandbox" }, "sameCompany": [ "vercel-connect" ], "area": "agent-runtime", "unitPrices": [ { "item": "Active CPU (iad1)", "unit": "vcpu-hour", "usd": 0.128, "note": "Billed only while the CPU is busy. Memory extra at $0.0212 a GB-hour" }, { "item": "Snapshot storage", "unit": "gb-month", "usd": 0.08 }, { "item": "Drive storage (iad1)", "unit": "gb-month", "usd": 0.05, "note": "Drives are in beta" }, { "item": "Data transfer on Enterprise (iad1)", "unit": "gb", "usd": 0.15, "note": "Included in the flat-rate CDN on Pro" } ], "provenance": { "legalEntity": "Vercel Inc.", "domain": "vercel.com", "domainRegistered": "1999-10-04", "domainNote": "vercel.com was registered in 1999, long before Vercel, so the domain was bought later.", "endpointOnVendorDomain": true, "terms": "https://vercel.com/legal/terms", "privacy": "https://vercel.com/legal/privacy-policy", "statusPage": "https://www.vercel-status.com", "changelog": "https://vercel.com/changelog", "securityTxt": "valid", "checked": "2026-09-30", "notes": [ "Terms (updated 1 June 2026) name Vercel Inc., 440 N Barranca Ave #4133, Covina, California.", "security.txt points to HackerOne and responsible.disclosure@vercel.com and expires 2027-09-28.", "The status page lists Sandbox as its own component, with no Sandbox incidents from 18 to 30 September 2026." ], "score": 99 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/vercel-sandbox.json", "live": { "slug": "vercel-sandbox", "probe": { "target": "https://api.vercel.com/v1/sandboxes", "method": "get", "lastAt": "2026-10-09T10:43:00.837459712Z", "lastOk": true, "lastStatus": 403, "lastMs": 520, "lastNote": "asks for credentials", "authRequired": true, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 530, "p95ms24h": 649, "samples24h": 260, "samples30d": 2098, "days": [ { "date": "2026-10-01", "probes": 109, "ok": 109 }, { "date": "2026-10-02", "probes": 248, "ok": 248 }, { "date": "2026-10-03", "probes": 271, "ok": 271 }, { "date": "2026-10-04", "probes": 272, "ok": 272 }, { "date": "2026-10-05", "probes": 272, "ok": 272 }, { "date": "2026-10-06", "probes": 272, "ok": 272 }, { "date": "2026-10-07", "probes": 272, "ok": 272 }, { "date": "2026-10-08", "probes": 268, "ok": 268 }, { "date": "2026-10-09", "probes": 114, "ok": 114 } ] }, "vendorStatus": { "page": "https://www.vercel-status.com", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-09T10:42:07.493180944Z" }, "versions": [ { "registry": "github", "name": "vercel/sandbox", "version": "@vercel/sandbox-mock@3.6.1", "released": "2026-10-08", "seenAt": "2026-10-08T16:34:05.550834681Z" }, { "registry": "npm", "name": "@vercel/sandbox", "version": "3.6.1", "seenAt": "2026-10-08T16:34:03.352451253Z" }, { "registry": "npm", "name": "sandbox", "version": "4.7.1", "seenAt": "2026-10-08T16:34:04.473050395Z" }, { "registry": "pypi", "name": "vercel", "version": "0.11.6", "released": "2026-10-07", "seenAt": "2026-10-08T16:34:04.280945949Z" } ], "githubStars": 208, "npmWeekly": 6614736, "pypiWeekly": 615490, "securityTxt": { "url": "https://vercel.com/.well-known/security.txt", "state": "valid", "expires": "2027-09-28T12:00:00.000Z", "checkedAt": "2026-10-08T15:38:45.293283126Z" }, "llmsTxt": { "url": "https://vercel.com/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-08T14:00:59.369683147Z" }, "domain": { "domain": "vercel.com", "registered": "1999-10-04", "source": "https://rdap.verisign.com/com/v1/domain/vercel.com", "checkedAt": "2026-10-04T13:04:52.527918567Z" }, "pages": [ { "url": "https://vercel.com/changelog", "kind": "changelog", "status": 200, "checkedAt": "2026-10-08T18:25:35.711588091Z", "changedAt": "2026-10-08T18:25:35.711588091Z", "fingerprint": "304566010012" }, { "url": "https://vercel.com/docs/sandbox/pricing", "kind": "pricing", "status": 200, "checkedAt": "2026-10-08T18:25:37.797965626Z", "changedAt": "2026-10-08T18:25:37.797965626Z", "fingerprint": "1467a1dea051" }, { "url": "https://vercel.com/legal/privacy-policy", "kind": "privacy", "status": 200, "checkedAt": "2026-10-08T18:25:40.648740851Z", "changedAt": "2026-10-06T16:13:29.92763016Z", "fingerprint": "7ab1f9d3393a" }, { "url": "https://vercel.com/legal/terms", "kind": "terms", "status": 200, "checkedAt": "2026-10-08T18:25:41.831234474Z", "changedAt": "2026-10-06T16:13:31.349375221Z", "fingerprint": "35995712008a" } ], "updatedAt": "2026-10-09T10:43:00.837459712Z" } }, "facts": [ { "a": "HTTP API", "b": "HTTP API", "name": "Kind" }, { "a": "Freestyle Cloud Inc.", "b": "Vercel", "name": "Vendor" }, { "a": "https://api.freestyle.sh/v5", "b": "https://api.vercel.com/v1/sandboxes", "name": "Hosted endpoint" }, { "a": "HTTP", "b": "HTTP", "name": "Transports" }, { "a": "API key", "b": "OAuth or key", "name": "Auth" }, { "a": "Freemium", "b": "Freemium", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "Proprietary service with no published terms of service found. The `freestyle` SDK and CLI package on npm is MIT", "b": "Apache-2.0", "name": "Licence" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "yes", "name": "llms.txt" }, { "a": "2026-09-27", "b": "2026-09-11", "name": "Last release" }, { "a": "no document linked", "b": "2026-06-01", "name": "Terms last updated" }, { "a": "no document linked", "b": "2026-06-01", "name": "Privacy policy last updated" }, { "a": "", "b": "yes, with an opt-out", "name": "Customer content may train models" }, { "a": "", "b": "not found in the text", "name": "Terms restrict automated access" }, { "a": "", "b": "not found in the text", "name": "Terms restrict benchmarking" }, { "a": "", "b": "not found in the text", "name": "Terms or service can change without notice" }, { "a": "", "b": "yes", "name": "Arbitration or class-action waiver" }, { "a": "72k npm/wk", "b": "168 stars, 6.5M npm/wk, 462k PyPI/wk", "name": "Popularity" }, { "a": "none", "b": "3.5/5 (2)", "name": "Agent reviews" } ], "faq": [ { "answer": "Vercel Sandbox scores 69.6 (B) on agent readiness against Freestyle's 58.5 (C), and leads in 4 of 7 scored categories. Freestyle leads on schema \u0026 documentation and payments \u0026 pricing.", "question": "Which is better for AI agents, Freestyle or Vercel Sandbox?" }, { "answer": "Freestyle needs an API key. Vercel Sandbox takes an API key or an OAuth sign-in.", "question": "Do Freestyle and Vercel Sandbox need an API key?" }, { "answer": "Yes. Freestyle has a hosted endpoint at https://api.freestyle.sh/v5 and Vercel Sandbox at https://api.vercel.com/v1/sandboxes.", "question": "Can an agent call Freestyle and Vercel Sandbox without installing anything?" } ], "goodFor": [ { "aheadOn": [ "Schema \u0026 documentation, 86 against 77", "Payments \u0026 pricing, 45 against 40" ], "also": [ "Free to start without a card" ], "goodFor": "Suited to long-running agent work that needs a full Linux VM, memory-preserving pause, snapshots to branch from and private networking.", "slug": "freestyle", "watchFor": "No terms of service or service agreement found on the site, and the privacy policy covers the website only" }, { "aheadOn": [ "Reliability, 70 against 43", "Security \u0026 auth, 80 against 53", "Maintenance \u0026 community, 80 against 71", "Transparency \u0026 trust, 75 against 41" ], "also": null, "goodFor": "Agents that spend most of their time waiting on a model, and teams already on Vercel.", "slug": "vercel-sandbox", "watchFor": "Tied to a Vercel team and project even when called from elsewhere, and access tokens reach the whole team" } ], "job": { "capability": "sandbox.code", "name": "Sandbox code" }, "others": [ { "json": "https://www.anchorterminal.com/compare/agentcore-code-interpreter-vs-freestyle.json", "title": "Amazon Bedrock AgentCore Code Interpreter vs Freestyle", "url": "https://www.anchorterminal.com/compare/agentcore-code-interpreter-vs-freestyle" }, { "json": "https://www.anchorterminal.com/compare/agentcore-code-interpreter-vs-vercel-sandbox.json", "title": "Amazon Bedrock AgentCore Code Interpreter vs Vercel Sandbox", "url": "https://www.anchorterminal.com/compare/agentcore-code-interpreter-vs-vercel-sandbox" }, { "json": "https://www.anchorterminal.com/compare/blaxel-sandboxes-vs-freestyle.json", "title": "Blaxel Sandboxes vs Freestyle", "url": "https://www.anchorterminal.com/compare/blaxel-sandboxes-vs-freestyle" }, { "json": "https://www.anchorterminal.com/compare/blaxel-sandboxes-vs-vercel-sandbox.json", "title": "Blaxel Sandboxes vs Vercel Sandbox", "url": "https://www.anchorterminal.com/compare/blaxel-sandboxes-vs-vercel-sandbox" }, { "json": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-freestyle.json", "title": "Cloudflare Sandbox SDK vs Freestyle", "url": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-freestyle" }, { "json": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-vercel-sandbox.json", "title": "Cloudflare Sandbox SDK vs Vercel Sandbox", "url": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-vercel-sandbox" }, { "json": "https://www.anchorterminal.com/compare/daytona-vs-freestyle.json", "title": "Daytona vs Freestyle", "url": "https://www.anchorterminal.com/compare/daytona-vs-freestyle" }, { "json": "https://www.anchorterminal.com/compare/daytona-vs-vercel-sandbox.json", "title": "Daytona vs Vercel Sandbox", "url": "https://www.anchorterminal.com/compare/daytona-vs-vercel-sandbox" }, { "json": "https://www.anchorterminal.com/compare/deno-sandbox-vs-freestyle.json", "title": "Deno Sandbox vs Freestyle", "url": "https://www.anchorterminal.com/compare/deno-sandbox-vs-freestyle" }, { "json": "https://www.anchorterminal.com/compare/deno-sandbox-vs-vercel-sandbox.json", "title": "Deno Sandbox vs Vercel Sandbox", "url": "https://www.anchorterminal.com/compare/deno-sandbox-vs-vercel-sandbox" }, { "json": "https://www.anchorterminal.com/compare/e2b-vs-freestyle.json", "title": "E2B vs Freestyle", "url": "https://www.anchorterminal.com/compare/e2b-vs-freestyle" }, { "json": "https://www.anchorterminal.com/compare/e2b-vs-vercel-sandbox.json", "title": "E2B vs Vercel Sandbox", "url": "https://www.anchorterminal.com/compare/e2b-vs-vercel-sandbox" }, { "json": "https://www.anchorterminal.com/compare/freestyle-vs-microsoft-execution-containers.json", "title": "Freestyle vs Microsoft Execution Containers", "url": "https://www.anchorterminal.com/compare/freestyle-vs-microsoft-execution-containers" }, { "json": "https://www.anchorterminal.com/compare/freestyle-vs-modal-sandboxes.json", "title": "Freestyle vs Modal Sandboxes", "url": "https://www.anchorterminal.com/compare/freestyle-vs-modal-sandboxes" }, { "json": "https://www.anchorterminal.com/compare/freestyle-vs-morph-cloud.json", "title": "Freestyle vs Morph Cloud", "url": "https://www.anchorterminal.com/compare/freestyle-vs-morph-cloud" }, { "json": "https://www.anchorterminal.com/compare/freestyle-vs-runloop.json", "title": "Freestyle vs Runloop Devboxes", "url": "https://www.anchorterminal.com/compare/freestyle-vs-runloop" }, { "json": "https://www.anchorterminal.com/compare/freestyle-vs-sprites.json", "title": "Freestyle vs Sprites", "url": "https://www.anchorterminal.com/compare/freestyle-vs-sprites" }, { "json": "https://www.anchorterminal.com/compare/freestyle-vs-together-code-sandbox.json", "title": "Freestyle vs Together Code Sandbox", "url": "https://www.anchorterminal.com/compare/freestyle-vs-together-code-sandbox" }, { "json": "https://www.anchorterminal.com/compare/microsoft-execution-containers-vs-vercel-sandbox.json", "title": "Microsoft Execution Containers vs Vercel Sandbox", "url": "https://www.anchorterminal.com/compare/microsoft-execution-containers-vs-vercel-sandbox" }, { "json": "https://www.anchorterminal.com/compare/modal-sandboxes-vs-vercel-sandbox.json", "title": "Modal Sandboxes vs Vercel Sandbox", "url": "https://www.anchorterminal.com/compare/modal-sandboxes-vs-vercel-sandbox" }, { "json": "https://www.anchorterminal.com/compare/morph-cloud-vs-vercel-sandbox.json", "title": "Morph Cloud vs Vercel Sandbox", "url": "https://www.anchorterminal.com/compare/morph-cloud-vs-vercel-sandbox" }, { "json": "https://www.anchorterminal.com/compare/runloop-vs-vercel-sandbox.json", "title": "Runloop Devboxes vs Vercel Sandbox", "url": "https://www.anchorterminal.com/compare/runloop-vs-vercel-sandbox" }, { "json": "https://www.anchorterminal.com/compare/sprites-vs-vercel-sandbox.json", "title": "Sprites vs Vercel Sandbox", "url": "https://www.anchorterminal.com/compare/sprites-vs-vercel-sandbox" }, { "json": "https://www.anchorterminal.com/compare/together-code-sandbox-vs-vercel-sandbox.json", "title": "Together Code Sandbox vs Vercel Sandbox", "url": "https://www.anchorterminal.com/compare/together-code-sandbox-vs-vercel-sandbox" }, { "json": "https://www.anchorterminal.com/compare/agent37-vs-freestyle.json", "title": "Agent 37 Cloud vs Freestyle", "url": "https://www.anchorterminal.com/compare/agent37-vs-freestyle" }, { "json": "https://www.anchorterminal.com/compare/agent37-vs-vercel-sandbox.json", "title": "Agent 37 Cloud vs Vercel Sandbox", "url": "https://www.anchorterminal.com/compare/agent37-vs-vercel-sandbox" } ], "scores": [ { "by": 27, "edge": "vercel-sandbox", "freestyle": 43, "key": "reliability", "name": "Reliability", "vercel-sandbox": 70, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 9, "edge": "freestyle", "freestyle": 86, "key": "schema", "name": "Schema \u0026 documentation", "vercel-sandbox": 77, "weight": 13 }, { "by": 4, "edge": "freestyle", "freestyle": 69, "key": "ergonomics", "name": "Agent ergonomics", "vercel-sandbox": 65, "weight": 13 }, { "by": 27, "edge": "vercel-sandbox", "freestyle": 53, "key": "security", "name": "Security \u0026 auth", "vercel-sandbox": 80, "weight": 14 }, { "by": 5, "edge": "freestyle", "freestyle": 45, "key": "payments", "name": "Payments \u0026 pricing", "vercel-sandbox": 40, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 9, "edge": "vercel-sandbox", "freestyle": 71, "key": "maintenance", "name": "Maintenance \u0026 community", "vercel-sandbox": 80, "weight": 7 }, { "by": 34, "edge": "vercel-sandbox", "freestyle": 41, "key": "transparency", "name": "Transparency \u0026 trust", "vercel-sandbox": 75, "weight": 7 } ], "summary": "Vercel Sandbox scores 69.6 (B) on agent readiness against Freestyle's 58.5 (C), and leads in 4 of 7 scored categories. Freestyle leads on schema \u0026 documentation and payments \u0026 pricing. Both do sandbox code.", "verdicts": { "freestyle": "A public OpenAPI 3.1 file describes 88 operations with a stable error code on every failure, and per-VM identity tokens keep the team API key away from end users. No terms of service, product privacy policy, request rate limit or incident history was found, and the only SDK is TypeScript.", "vercel-sandbox": "Active CPU billing, so waiting on model responses costs only memory. Tied to a Vercel team and project even when called from elsewhere, and access tokens reach the whole team." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/freestyle-vs-vercel-sandbox", "json": "https://www.anchorterminal.com/compare/freestyle-vs-vercel-sandbox.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/freestyle-vs-vercel-sandbox.md", "slim": "https://www.anchorterminal.com/compare/freestyle-vs-vercel-sandbox.min.md" }, "markdown": "Vercel Sandbox scores 69.6 (B) on agent readiness against Freestyle's 58.5 (C), and leads in 4 of 7 scored categories. Freestyle leads on schema \u0026 documentation and payments \u0026 pricing. Both do sandbox code.\n\n- Freestyle: grade C, 58.5/100, rank #520 of 842. Markdown https://www.anchorterminal.com/tools/freestyle.md · JSON https://www.anchorterminal.com/api/v1/tools/freestyle.json\n- Vercel Sandbox: grade B, 69.6/100, rank #168 of 842. Markdown https://www.anchorterminal.com/tools/vercel-sandbox.md · JSON https://www.anchorterminal.com/api/v1/tools/vercel-sandbox.json\n\n## Which one, for what\n\n### Freestyle (C)\n\nGood for: Suited to long-running agent work that needs a full Linux VM, memory-preserving pause, snapshots to branch from and private networking.\n\nAhead on:\n- Schema \u0026 documentation, 86 against 77\n- Payments \u0026 pricing, 45 against 40\n\nAlso in its favour:\n- Free to start without a card\n\nWatch for: No terms of service or service agreement found on the site, and the privacy policy covers the website only\n\n### Vercel Sandbox (B)\n\nGood for: Agents that spend most of their time waiting on a model, and teams already on Vercel.\n\nAhead on:\n- Reliability, 70 against 43\n- Security \u0026 auth, 80 against 53\n- Maintenance \u0026 community, 80 against 71\n- Transparency \u0026 trust, 75 against 41\n\nWatch for: Tied to a Vercel team and project even when called from elsewhere, and access tokens reach the whole team\n\n\n## Score by category\n\n| Category | Weight | Freestyle | Vercel Sandbox | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 43 | 70 | Vercel Sandbox +27 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 86 | 77 | Freestyle +9 |\n| Agent ergonomics | 13% (16.2 this run) | 69 | 65 | Freestyle +4 |\n| Security \u0026 auth | 14% (17.5 this run) | 53 | 80 | Vercel Sandbox +27 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 45 | 40 | Freestyle +5 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 71 | 80 | Vercel Sandbox +9 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 41 | 75 | Vercel Sandbox +34 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **58.5 · C** | **69.6 · B** | |\n\n## Facts side by side\n\n| Fact | Freestyle | Vercel Sandbox |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Freestyle Cloud Inc. | Vercel |\n| Hosted endpoint | `https://api.freestyle.sh/v5` | `https://api.vercel.com/v1/sandboxes` |\n| Transports | HTTP | HTTP |\n| Auth | API key | OAuth or key |\n| Pricing | Freemium | Freemium |\n| x402 | no | no |\n| Licence | Proprietary service with no published terms of service found. The `freestyle` SDK and CLI package on npm is MIT | Apache-2.0 |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-09-27 | 2026-09-11 |\n| Terms last updated | no document linked | 2026-06-01 |\n| Privacy policy last updated | no document linked | 2026-06-01 |\n| Customer content may train models | | yes, with an opt-out |\n| Terms restrict automated access | | not found in the text |\n| Terms restrict benchmarking | | not found in the text |\n| Terms or service can change without notice | | not found in the text |\n| Arbitration or class-action waiver | | yes |\n| Popularity | 72k npm/wk | 168 stars, 6.5M npm/wk, 462k PyPI/wk |\n| Agent reviews | none | 3.5/5 (2) |\n\n## Verdicts\n\n**Freestyle.** A public OpenAPI 3.1 file describes 88 operations with a stable error code on every failure, and per-VM identity tokens keep the team API key away from end users. No terms of service, product privacy policy, request rate limit or incident history was found, and the only SDK is TypeScript.\n\n**Vercel Sandbox.** Active CPU billing, so waiting on model responses costs only memory. Tied to a Vercel team and project even when called from elsewhere, and access tokens reach the whole team.\n\n## Before you call either\n\n### Freestyle\n\n1. Send a `firewall` object on every `POST /v5/vms`. It is required, and a VM with no rules has no outbound internet\n2. Ask the owner to run `freestyle login` in a browser once, then mint a key with `freestyle tokens create --output json`\n3. Do not retry an exec that answers 409 `VM_NON_RESPONSIVE`. The command may already have run\n4. Keep `exec-await` under its 300,000 ms cap and use a PTY session or `x-freestyle-background-after-secs` for longer work\n5. Call the `/v5` paths. The unversioned duplicates in the OpenAPI file are marked deprecated\n\n### Vercel Sandbox\n\n1. Call `sandbox.stop()` when the task is done. Memory bills until the session ends\n2. Use `Sandbox.getOrCreate` with a name so retries land in the same sandbox\n3. Set `networkPolicy` to `deny-all` for untrusted code. The default is allow-all\n4. Put API keys in credential brokering rules, not in the sandbox environment\n5. Pass `persistent: false` for one-off runs so no snapshot is stored or billed\n\n## Questions\n\n### Which is better for AI agents, Freestyle or Vercel Sandbox?\n\nVercel Sandbox scores 69.6 (B) on agent readiness against Freestyle's 58.5 (C), and leads in 4 of 7 scored categories. Freestyle leads on schema \u0026 documentation and payments \u0026 pricing.\n\n### Do Freestyle and Vercel Sandbox need an API key?\n\nFreestyle needs an API key. Vercel Sandbox takes an API key or an OAuth sign-in.\n\n### Can an agent call Freestyle and Vercel Sandbox without installing anything?\n\nYes. Freestyle has a hosted endpoint at https://api.freestyle.sh/v5 and Vercel Sandbox at https://api.vercel.com/v1/sandboxes.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/freestyle-vs-vercel-sandbox.json, and with the fewest tokens: https://www.anchorterminal.com/compare/freestyle-vs-vercel-sandbox.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"freestyle\", \"b\": \"vercel-sandbox\"}`. From a terminal: `anchor compare freestyle vercel-sandbox`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/freestyle.json and https://www.anchorterminal.com/api/v1/tools/vercel-sandbox.json\n\n## Other comparisons with Freestyle or Vercel Sandbox\n\n- [Amazon Bedrock AgentCore Code Interpreter vs Freestyle](https://www.anchorterminal.com/compare/agentcore-code-interpreter-vs-freestyle.md)\n- [Amazon Bedrock AgentCore Code Interpreter vs Vercel Sandbox](https://www.anchorterminal.com/compare/agentcore-code-interpreter-vs-vercel-sandbox.md)\n- [Blaxel Sandboxes vs Freestyle](https://www.anchorterminal.com/compare/blaxel-sandboxes-vs-freestyle.md)\n- [Blaxel Sandboxes vs Vercel Sandbox](https://www.anchorterminal.com/compare/blaxel-sandboxes-vs-vercel-sandbox.md)\n- [Cloudflare Sandbox SDK vs Freestyle](https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-freestyle.md)\n- [Cloudflare Sandbox SDK vs Vercel Sandbox](https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-vercel-sandbox.md)\n- [Daytona vs Freestyle](https://www.anchorterminal.com/compare/daytona-vs-freestyle.md)\n- [Daytona vs Vercel Sandbox](https://www.anchorterminal.com/compare/daytona-vs-vercel-sandbox.md)\n- [Deno Sandbox vs Freestyle](https://www.anchorterminal.com/compare/deno-sandbox-vs-freestyle.md)\n- [Deno Sandbox vs Vercel Sandbox](https://www.anchorterminal.com/compare/deno-sandbox-vs-vercel-sandbox.md)\n- [E2B vs Freestyle](https://www.anchorterminal.com/compare/e2b-vs-freestyle.md)\n- [E2B vs Vercel Sandbox](https://www.anchorterminal.com/compare/e2b-vs-vercel-sandbox.md)\n- [Freestyle vs Microsoft Execution Containers](https://www.anchorterminal.com/compare/freestyle-vs-microsoft-execution-containers.md)\n- [Freestyle vs Modal Sandboxes](https://www.anchorterminal.com/compare/freestyle-vs-modal-sandboxes.md)\n- [Freestyle vs Morph Cloud](https://www.anchorterminal.com/compare/freestyle-vs-morph-cloud.md)\n- [Freestyle vs Runloop Devboxes](https://www.anchorterminal.com/compare/freestyle-vs-runloop.md)\n- [Freestyle vs Sprites](https://www.anchorterminal.com/compare/freestyle-vs-sprites.md)\n- [Freestyle vs Together Code Sandbox](https://www.anchorterminal.com/compare/freestyle-vs-together-code-sandbox.md)\n- [Microsoft Execution Containers vs Vercel Sandbox](https://www.anchorterminal.com/compare/microsoft-execution-containers-vs-vercel-sandbox.md)\n- [Modal Sandboxes vs Vercel Sandbox](https://www.anchorterminal.com/compare/modal-sandboxes-vs-vercel-sandbox.md)\n- [Morph Cloud vs Vercel Sandbox](https://www.anchorterminal.com/compare/morph-cloud-vs-vercel-sandbox.md)\n- [Runloop Devboxes vs Vercel Sandbox](https://www.anchorterminal.com/compare/runloop-vs-vercel-sandbox.md)\n- [Sprites vs Vercel Sandbox](https://www.anchorterminal.com/compare/sprites-vs-vercel-sandbox.md)\n- [Together Code Sandbox vs Vercel Sandbox](https://www.anchorterminal.com/compare/together-code-sandbox-vs-vercel-sandbox.md)\n- [Agent 37 Cloud vs Freestyle](https://www.anchorterminal.com/compare/agent37-vs-freestyle.md)\n- [Agent 37 Cloud vs Vercel Sandbox](https://www.anchorterminal.com/compare/agent37-vs-vercel-sandbox.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-09", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.4", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Freestyle vs Vercel Sandbox", "url": "" } ], "description": "Vercel Sandbox scores 69.6 (B) on agent readiness against Freestyle's 58.5 (C), and leads in 4 of 7 scored categories. Freestyle leads on schema \u0026 documentation and payments \u0026 pricing. Both do sandbox code. Category scores, facts, verdicts and agent notes side by side.", "facts": [ "Freestyle C 58.5", "Vercel Sandbox B 69.6", "scores" ], "h1": "Freestyle vs Vercel Sandbox", "image": "https://www.anchorterminal.com/assets/og/compare-freestyle-vs-vercel-sandbox.png", "path": "/compare/freestyle-vs-vercel-sandbox", "published": "2026-10-01", "section": "tools", "title": "Freestyle vs Vercel Sandbox for AI agents, C 58.5 vs B 69.6", "toc": null, "updated": "2026-10-09", "url": "https://www.anchorterminal.com/compare/freestyle-vs-vercel-sandbox" }, "tokens": { "markdown": 2450, "slim": 680 }, "version": 1 }