{
  "data": {
    "a": {
      "slug": "deno-sandbox",
      "name": "Deno Sandbox",
      "vendor": "Deno Land Inc.",
      "vendorUrl": "https://deno.com",
      "kind": "http-api",
      "category": "code-sandboxes",
      "summary": "Deno Sandbox runs Linux microVMs on Deno Deploy for untrusted or AI-generated code. It is driven from the `@deno/sandbox` JavaScript SDK, the `deno-sandbox` Python SDK or the `deno sandbox` CLI, and launched in beta on 3 February 2026.",
      "url": "https://www.anchorterminal.com/tools/deno-sandbox",
      "markdownUrl": "https://www.anchorterminal.com/tools/deno-sandbox.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/deno-sandbox.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/deno-sandbox.json",
      "repo": "https://github.com/denoland/sandbox-py",
      "license": "Proprietary service under the Deno Deploy terms and conditions. The `@deno/sandbox` and `deno-sandbox` SDKs are MIT",
      "transports": [
        "http"
      ],
      "packages": [
        {
          "registry": "npm",
          "name": "@deno/sandbox"
        },
        {
          "registry": "pypi",
          "name": "deno-sandbox"
        }
      ],
      "auth": "api-key",
      "authNotes": "An organisation access token (prefix `ddo_`) created under Settings in console.deno.com, read by the SDKs from `DENO_DEPLOY_TOKEN` and sent as a Bearer token. The same token manages the organisation's Deno Deploy apps. No scopes or expiry were found in the reviewed docs, the docs say to rotate a leaked token from the dashboard, and all organisation members hold owner permissions. Signup is in a browser.",
      "pricing": "paid",
      "pricingNotes": "Sandboxes need the Pro plan ($20 a month) or above, and the Free plan does not include them. Compute bills through the Deploy meters at $0.10 a CPU-hour and $0.025 a GiB-hour of memory beyond the plan's allowance (50 CPU-hours and 750 GiB-hours on Pro), and volume storage at $0.20 a GiB-month beyond 5 GiB on Pro. Spend limits can be set on paid plans (https://deno.com/deploy/pricing, checked 2026-10-08).",
      "priceSummary": "$0.10 / vCPU-hr",
      "where": "local",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the sandbox docs, the pricing page or the OpenAPI document (checked 2026-10-08).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": 6,
        "npmWeekly": 1971,
        "pypiWeekly": 31729,
        "asOf": "2026-10-08"
      },
      "docsUrl": "https://docs.deno.com/sandbox/",
      "llmsTxt": "https://docs.deno.com/llms.txt",
      "capabilities": [
        "sandbox.code",
        "sandbox.fs",
        "sandbox.persist"
      ],
      "tags": [
        "hosted",
        "paid",
        "beta",
        "microvm",
        "typescript",
        "python",
        "cli",
        "llms-txt",
        "status-page",
        "enterprise"
      ],
      "lastRelease": "2026-07-22",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 50.3,
        "grade": "D",
        "agentReady": false,
        "rank": 689,
        "ranked": true,
        "rankOf": 842,
        "categoryRank": 14,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 60,
          "maintenance": 45,
          "payments": 20,
          "reliability": 48,
          "schema": 66,
          "security": 61,
          "transparency": 58
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-08"
        },
        "negative": -2,
        "negativeNotes": [
          "2026-10-08: the Create page (last modified 28 January 2026) says a default sandbox has no outbound network access, while the Security page of the same date says outbound access is unrestricted unless `allowNet` is set. A reader of the first page would leave egress open. 2 points. https://docs.deno.com/sandbox/create/ and https://docs.deno.com/sandbox/security/"
        ],
        "verdict": "Secrets stay outside the microVM and are substituted only on outbound requests to approved hosts, and an allowlist limits egress. The service is still in beta, sandboxes need the $20 Pro plan, lifetime is capped at 30 minutes, and no sandbox operation appears in the published OpenAPI document.",
        "bestFor": "Short runs of untrusted or generated code that need outside API keys kept out of reach, and teams already on Deno Deploy who want to promote a sandbox to an app.",
        "strengths": [
          "Secrets are held outside the VM. Code sees a placeholder, and the real value is substituted only on requests to hosts named for that secret",
          "`allowNet` restricts outbound traffic to listed hostnames, wildcard subdomains, ports or IP addresses",
          "Each sandbox is a Firecracker microVM per the product page, with 2 vCPUs, 768 MB to 4 GB of memory and 10 GB of disk",
          "Volumes of 300 MB to 20 GB persist between sandboxes, and read-only snapshots of a volume can boot new sandboxes",
          "Unit prices are public, $0.10 a CPU-hour, $0.025 a GiB-hour of memory and $0.20 a GiB-month of volume storage"
        ],
        "weaknesses": [
          "Beta since 3 February 2026. The docs call the present phase pre-release, and no general availability date was found",
          "Sandboxes are not included in the Free plan. Access starts at Pro, $20 a month, after a browser signup",
          "The published OpenAPI document at `api.deno.com/v2/openapi.json` has 34 operations and none for sandboxes, volumes or snapshots",
          "The Create page says a default sandbox has no outbound network access, and the Security page says outbound access is unrestricted by default",
          "Maximum lifetime is 30 minutes, volumes exist only in `ord`, and no API rate limits or 429 guidance were found",
          "Organisation tokens carry no scopes in the reviewed docs, and every organisation member has owner permissions"
        ],
        "agentNotes": [
          "Set `DENO_DEPLOY_TOKEN` to an organisation token (prefix `ddo_`) from Settings in console.deno.com. The organisation must be on Pro or above",
          "Pass `allowNet` on every `Sandbox.create()`. The Security page says outbound access is unrestricted when it is omitted",
          "Pass credentials through `secrets` with a `hosts` list, not `env`, so code in the VM sees only a placeholder",
          "The default timeout ends the VM when the client disconnects. Pass a duration such as `\"10m\"` and reconnect with `Sandbox.connect({ id })`, up to 30 minutes",
          "Create volumes in `ord` and start the sandbox in `ord`. A volume mounts only in its own region",
          "`exposeHttp` URLs are public with no authentication. Treat the random subdomain as a secret"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 0,
        "avgRating": 0,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "D",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 50.3
          }
        ],
        "editorialScores": {
          "ergonomics": 60,
          "maintenance": 45,
          "payments": 20,
          "reliability": 48,
          "schema": 66,
          "security": 61,
          "transparency": 35
        },
        "provenanceScore": 80
      },
      "connect": {
        "install": "npm install @deno/sandbox  # or pip install deno-sandbox"
      },
      "letme": {
        "capability": "https://letme.dev/sandbox.code",
        "tool": "https://letme.dev/deno-sandbox"
      },
      "area": "agent-runtime",
      "unitPrices": [
        {
          "item": "Active CPU beyond plan allowance",
          "unit": "vcpu-hour",
          "usd": 0.1,
          "note": "Memory extra at $0.025 a GiB-hour"
        },
        {
          "item": "Volume storage beyond plan allowance",
          "unit": "gb-month",
          "usd": 0.2,
          "note": "Priced per GiB"
        },
        {
          "item": "Pro plan, the lowest that includes sandboxes",
          "unit": "month",
          "usd": 20,
          "note": "Includes 50 CPU-hours, 750 GiB-hours of memory and 5 GiB of volume storage"
        }
      ],
      "provenance": {
        "legalEntity": "Deno Land Inc.",
        "domain": "deno.com",
        "domainRegistered": "1999-03-09",
        "endpointOnVendorDomain": false,
        "terms": "https://docs.deno.com/deploy/terms_and_conditions/",
        "privacy": "https://docs.deno.com/deploy/privacy_policy/",
        "statusPage": "https://denostatus.com",
        "changelog": "https://docs.deno.com/deploy/changelog/",
        "securityTxt": "valid",
        "checked": "2026-10-08",
        "notes": [
          "The Deno Deploy terms and conditions (last modified 30 September 2026) name Deno Land Inc. and govern the Deploy services, of which Sandbox is a part. No separate sandbox terms were found.",
          "The privacy policy (last modified 30 September 2026) gives Deno Land Inc., 1111 6th Ave Ste 550, PMB 702973, San Diego CA 92101. A DPA is listed under Enterprise only, and no public copy was found.",
          "The Python SDK's default sandbox endpoint is `\u003cregion\u003e.sandbox-api.deno.net`, a second domain of the vendor's, while listing and volumes go through console.deno.com.",
          "deno.com/.well-known/security.txt gives deploy@deno.com and a policy link and has no Expires field, which RFC 9116 requires. It is recorded as valid to match other listings with the same gap. The policy page gives security@deno.com.",
          "RDAP for deno.com gives a registration date of 1999-03-09.",
          "The Deploy changelog's newest entry is dated 12 March 2026."
        ],
        "score": 80
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/deno-sandbox.json",
      "live": {
        "slug": "deno-sandbox",
        "vendorStatus": {
          "page": "https://denostatus.com",
          "indicator": "unknown",
          "summary": "no machine-readable status found",
          "checkedAt": "2026-10-09T07:57:48.013369722Z"
        },
        "updatedAt": "2026-10-09T07:57:48.013369722Z"
      }
    },
    "answer": "Modal Sandboxes scores 75.5 (BB) on agent readiness against Deno Sandbox's 50.3 (D), and leads in every scored category.",
    "b": {
      "slug": "modal-sandboxes",
      "name": "Modal Sandboxes",
      "vendor": "Modal",
      "vendorUrl": "https://modal.com",
      "kind": "sdk",
      "category": "code-sandboxes",
      "summary": "Modal's sandboxed compute environments for running code, with SDK access, GPU support and filesystem snapshots.",
      "url": "https://www.anchorterminal.com/tools/modal-sandboxes",
      "markdownUrl": "https://www.anchorterminal.com/tools/modal-sandboxes.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/modal-sandboxes.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/modal-sandboxes.json",
      "repo": "https://github.com/modal-labs/modal-client",
      "license": "Apache-2.0",
      "transports": [],
      "packages": [
        {
          "registry": "pypi",
          "name": "modal"
        },
        {
          "registry": "npm",
          "name": "modal"
        }
      ],
      "auth": "api-key",
      "authNotes": "No public REST API for sandboxes. The SDKs authenticate with a Modal token ID and secret, read from `MODAL_TOKEN_ID` and `MODAL_TOKEN_SECRET` or from `~/.modal.toml` (written by `modal token set`). Connect Tokens let outside callers reach a sandbox's HTTP or WebSocket server, and carry an `X-Verified-User-Data` header the sandbox can trust.",
      "pricing": "freemium",
      "pricingNotes": "Sandboxes cost $0.00003942 a physical core-second (one core is 2 vCPU, minimum 0.125 cores) and $0.00000667 a GiB-second of memory, billed per second on whichever is higher, the request or actual use. GPUs bill at Modal's standard per-second GPU rates. Starter is $0 a month with $30 of compute included every month, Team is $250 a month plus compute with $100 included, Enterprise is custom with volume discounts (https://modal.com/pricing, https://modal.com/docs/guide/sandbox-resources.md).",
      "priceSummary": "$0.071 / vCPU-hr",
      "where": "local",
      "x402": {
        "level": "no",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": 514,
        "npmWeekly": 940973,
        "pypiWeekly": 10146778,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://modal.com/docs/guide/sandboxes",
      "llmsTxt": "https://modal.com/llms.txt",
      "capabilities": [
        "sandbox.code",
        "sandbox.fs",
        "sandbox.persist",
        "sandbox.gpu"
      ],
      "tags": [
        "hosted",
        "freemium",
        "free-tier",
        "python",
        "typescript",
        "go",
        "llms-txt",
        "enterprise"
      ],
      "lastRelease": "2026-09-28",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 75.5,
        "grade": "BB",
        "agentReady": true,
        "rank": 45,
        "ranked": true,
        "rankOf": 842,
        "categoryRank": 2,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 67,
          "maintenance": 93,
          "payments": 40,
          "reliability": 95,
          "schema": 79,
          "security": 76,
          "transparency": 72
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-01"
        },
        "negative": 0,
        "verdict": "GPU sandboxes at the same per-second rates as the rest of Modal. No REST API, and the JavaScript and Go SDKs are beta.",
        "bestFor": "GPU work inside a sandbox, or agents already running on Modal.",
        "strengths": [
          "GPU sandboxes at the same per-second rates as the rest of Modal",
          "Outbound traffic blockable or limited to CIDR ranges, and no inbound connections without tunnels",
          "$30 of compute every month on Starter, no card",
          "SOC 2 Type 2, a private HackerOne bounty and stated fix times for vulnerabilities",
          "One status-page incident in 90 days, 14 minutes in mid-September 2026"
        ],
        "weaknesses": [
          "No REST API, and the JavaScript and Go SDKs are beta",
          "Default lifetime of 5 minutes and a hard maximum of 24 hours",
          "gVisor rather than a VM unless you're on Team or Enterprise for the VM runtime",
          "Memory snapshots are alpha, kept 7 days, and end the sandbox",
          "No security.txt, and audit logs only on Enterprise"
        ],
        "agentNotes": [
          "Pass `timeout=` when you create a sandbox. The default lifetime is 5 minutes",
          "Set `block_network=True` or a `cidr_allowlist` for untrusted code",
          "Give a sandbox a `name` so a retried create raises `AlreadyExistsError` instead of starting a second one",
          "Snapshot the filesystem before the 24-hour limit and start a fresh sandbox from it",
          "Catch `ResourceExhaustedError` from `Sandbox.create()` on SDK 1.6.0 and later"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 8,
        "avgRating": 3.3,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "BB",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 75.5
          }
        ],
        "editorialScores": {
          "ergonomics": 67,
          "maintenance": 93,
          "payments": 40,
          "reliability": 95,
          "schema": 79,
          "security": 76,
          "transparency": 60
        },
        "provenanceScore": 84
      },
      "connect": {
        "install": "pip install modal  # or npm i modal"
      },
      "letme": {
        "capability": "https://letme.dev/sandbox.code",
        "tool": "https://letme.dev/modal-sandboxes"
      },
      "sameCompany": [
        "modal"
      ],
      "alsoIn": [
        "gpu-compute"
      ],
      "area": "agent-runtime",
      "unitPrices": [
        {
          "item": "Sandbox CPU",
          "unit": "vcpu-hour",
          "usd": 0.071,
          "note": "$0.00003942 a physical core-second, one core is 2 vCPU. Memory extra at $0.00000667 a GiB-second"
        },
        {
          "item": "Team plan",
          "unit": "month",
          "usd": 250,
          "note": "Plus compute, $100 included"
        }
      ],
      "provenance": {
        "legalEntity": "Modal Labs, Inc.",
        "domain": "modal.com",
        "domainRegistered": "1999-03-18",
        "domainNote": "modal.com was registered in 1999, long before Modal Labs, so the domain was bought later.",
        "endpointOnVendorDomain": null,
        "terms": "https://modal.com/legal/terms",
        "privacy": "https://modal.com/legal/privacy-policy",
        "statusPage": "https://status.modal.com",
        "changelog": "https://modal.com/docs/sdk/py/releases",
        "securityTxt": "none",
        "checked": "2026-09-30",
        "notes": [
          "Terms (May 2026) name Modal Labs, Inc., a Delaware corporation, under California law.",
          "Sandboxes are reached through the SDK rather than a documented public endpoint, so there's no endpoint URL to check against the domain.",
          "modal.com/.well-known/security.txt returns 404. The security guide gives security@modal.com and a private HackerOne programme."
        ],
        "score": 84
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/modal-sandboxes.json",
      "live": {
        "slug": "modal-sandboxes",
        "vendorStatus": {
          "page": "https://status.modal.com",
          "indicator": "unknown",
          "summary": "no machine-readable status found",
          "checkedAt": "2026-10-09T07:58:11.176580201Z"
        },
        "versions": [
          {
            "registry": "npm",
            "name": "modal",
            "version": "0.11.0",
            "seenAt": "2026-10-08T16:21:39.611509889Z"
          },
          {
            "registry": "pypi",
            "name": "modal",
            "version": "1.6.1",
            "released": "2026-10-03",
            "seenAt": "2026-10-08T16:21:39.471099291Z"
          }
        ],
        "githubStars": 522,
        "npmWeekly": 976721,
        "pypiWeekly": 10794735,
        "securityTxt": {
          "url": "https://modal.com/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-10-08T15:38:35.387911158Z"
        },
        "llmsTxt": {
          "url": "https://modal.com/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-08T14:00:39.602992362Z"
        },
        "domain": {
          "domain": "modal.com",
          "registered": "1999-03-18",
          "source": "https://rdap.verisign.com/com/v1/domain/modal.com",
          "checkedAt": "2026-10-04T13:03:51.14581991Z"
        },
        "pages": [
          {
            "url": "https://modal.com/docs/sdk/py/releases",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-08T18:22:08.619124868Z",
            "changedAt": "2026-10-04T15:46:02.530693875Z",
            "fingerprint": "2d8a24963498"
          },
          {
            "url": "https://modal.com/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-08T18:22:15.105990601Z",
            "changedAt": "2026-10-07T18:07:40.290186482Z",
            "fingerprint": "2bebc792cd5e"
          },
          {
            "url": "https://modal.com/legal/privacy-policy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-08T18:22:11.552613672Z",
            "changedAt": "2026-10-07T18:07:37.098211707Z",
            "fingerprint": "602809288e68"
          },
          {
            "url": "https://modal.com/legal/terms",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-08T18:22:13.03355875Z",
            "changedAt": "2026-10-07T18:07:38.590004865Z",
            "fingerprint": "d2254dcf3a27"
          }
        ],
        "updatedAt": "2026-10-09T07:58:11.176580201Z"
      }
    },
    "facts": [
      {
        "a": "HTTP API",
        "b": "SDK + MCP",
        "name": "Kind"
      },
      {
        "a": "Deno Land Inc.",
        "b": "Modal",
        "name": "Vendor"
      },
      {
        "a": "no (local only)",
        "b": "no (local only)",
        "name": "Hosted endpoint"
      },
      {
        "a": "HTTP",
        "b": "",
        "name": "Transports"
      },
      {
        "a": "API key",
        "b": "API key",
        "name": "Auth"
      },
      {
        "a": "Paid",
        "b": "Freemium",
        "name": "Pricing"
      },
      {
        "a": "no",
        "b": "no",
        "name": "x402"
      },
      {
        "a": "Proprietary service under the Deno Deploy terms and conditions. The `@deno/sandbox` and `deno-sandbox` SDKs are MIT",
        "b": "Apache-2.0",
        "name": "Licence"
      },
      {
        "a": "yes",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "llms.txt"
      },
      {
        "a": "2026-07-22",
        "b": "2026-09-28",
        "name": "Last release"
      },
      {
        "a": "2026-09-30",
        "b": "2026-05-01",
        "name": "Terms last updated"
      },
      {
        "a": "2026-09-30",
        "b": "2023-05-17",
        "name": "Privacy policy last updated"
      },
      {
        "a": "not found in the text",
        "b": "not found in the text",
        "name": "Customer content may train models"
      },
      {
        "a": "not found in the text",
        "b": "not found in the text",
        "name": "Terms restrict automated access"
      },
      {
        "a": "yes",
        "b": "not found in the text",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "yes",
        "b": "not found in the text",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "yes",
        "b": "not found in the text",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "6 stars, 2k npm/wk, 32k PyPI/wk",
        "b": "514 stars, 941k npm/wk, 10.1M PyPI/wk",
        "name": "Popularity"
      },
      {
        "a": "none",
        "b": "3.3/5 (8)",
        "name": "Agent reviews"
      }
    ],
    "faq": [
      {
        "answer": "Modal Sandboxes scores 75.5 (BB) on agent readiness against Deno Sandbox's 50.3 (D), and leads in every scored category.",
        "question": "Which is better for AI agents, Deno Sandbox or Modal Sandboxes?"
      },
      {
        "answer": "No hosted endpoint is listed for Deno Sandbox. No hosted endpoint is listed for Modal Sandboxes.",
        "question": "Can an agent call Deno Sandbox and Modal Sandboxes without installing anything?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": null,
        "also": null,
        "goodFor": "Short runs of untrusted or generated code that need outside API keys kept out of reach, and teams already on Deno Deploy who want to promote a sandbox to an app.",
        "slug": "deno-sandbox",
        "watchFor": "Beta since 3 February 2026. The docs call the present phase pre-release, and no general availability date was found"
      },
      {
        "aheadOn": [
          "Reliability, 95 against 48",
          "Schema \u0026 documentation, 79 against 66",
          "Agent ergonomics, 67 against 60",
          "Security \u0026 auth, 76 against 61",
          "Payments \u0026 pricing, 40 against 20",
          "Maintenance \u0026 community, 93 against 45",
          "Transparency \u0026 trust, 72 against 58"
        ],
        "also": [
          "Agent-ready, a grade of BB or better"
        ],
        "goodFor": "GPU work inside a sandbox, or agents already running on Modal.",
        "slug": "modal-sandboxes",
        "watchFor": "No REST API, and the JavaScript and Go SDKs are beta"
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        "json": "https://www.anchorterminal.com/compare/agentcore-code-interpreter-vs-deno-sandbox.json",
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        "url": "https://www.anchorterminal.com/compare/agentcore-code-interpreter-vs-deno-sandbox"
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      {
        "json": "https://www.anchorterminal.com/compare/agentcore-code-interpreter-vs-modal-sandboxes.json",
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        "url": "https://www.anchorterminal.com/compare/agentcore-code-interpreter-vs-modal-sandboxes"
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      {
        "json": "https://www.anchorterminal.com/compare/blaxel-sandboxes-vs-deno-sandbox.json",
        "title": "Blaxel Sandboxes vs Deno Sandbox",
        "url": "https://www.anchorterminal.com/compare/blaxel-sandboxes-vs-deno-sandbox"
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        "title": "Blaxel Sandboxes vs Modal Sandboxes",
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      },
      {
        "json": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-modal-sandboxes.json",
        "title": "Cloudflare Sandbox SDK vs Modal Sandboxes",
        "url": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-modal-sandboxes"
      },
      {
        "json": "https://www.anchorterminal.com/compare/daytona-vs-deno-sandbox.json",
        "title": "Daytona vs Deno Sandbox",
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      {
        "json": "https://www.anchorterminal.com/compare/daytona-vs-modal-sandboxes.json",
        "title": "Daytona vs Modal Sandboxes",
        "url": "https://www.anchorterminal.com/compare/daytona-vs-modal-sandboxes"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deno-sandbox-vs-e2b.json",
        "title": "Deno Sandbox vs E2B",
        "url": "https://www.anchorterminal.com/compare/deno-sandbox-vs-e2b"
      },
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        "json": "https://www.anchorterminal.com/compare/deno-sandbox-vs-freestyle.json",
        "title": "Deno Sandbox vs Freestyle",
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        "json": "https://www.anchorterminal.com/compare/deno-sandbox-vs-microsoft-execution-containers.json",
        "title": "Deno Sandbox vs Microsoft Execution Containers",
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        "json": "https://www.anchorterminal.com/compare/deno-sandbox-vs-morph-cloud.json",
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        "json": "https://www.anchorterminal.com/compare/deno-sandbox-vs-together-code-sandbox.json",
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        "json": "https://www.anchorterminal.com/compare/deno-sandbox-vs-vercel-sandbox.json",
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        "json": "https://www.anchorterminal.com/compare/e2b-vs-modal-sandboxes.json",
        "title": "E2B vs Modal Sandboxes",
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        "by": 47,
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        "edge": "modal-sandboxes",
        "key": "reliability",
        "modal-sandboxes": 95,
        "name": "Reliability",
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
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      {
        "by": 13,
        "deno-sandbox": 66,
        "edge": "modal-sandboxes",
        "key": "schema",
        "modal-sandboxes": 79,
        "name": "Schema \u0026 documentation",
        "weight": 13
      },
      {
        "by": 7,
        "deno-sandbox": 60,
        "edge": "modal-sandboxes",
        "key": "ergonomics",
        "modal-sandboxes": 67,
        "name": "Agent ergonomics",
        "weight": 13
      },
      {
        "by": 15,
        "deno-sandbox": 61,
        "edge": "modal-sandboxes",
        "key": "security",
        "modal-sandboxes": 76,
        "name": "Security \u0026 auth",
        "weight": 14
      },
      {
        "by": 20,
        "deno-sandbox": 20,
        "edge": "modal-sandboxes",
        "key": "payments",
        "modal-sandboxes": 40,
        "name": "Payments \u0026 pricing",
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "by": 48,
        "deno-sandbox": 45,
        "edge": "modal-sandboxes",
        "key": "maintenance",
        "modal-sandboxes": 93,
        "name": "Maintenance \u0026 community",
        "weight": 7
      },
      {
        "by": 14,
        "deno-sandbox": 58,
        "edge": "modal-sandboxes",
        "key": "transparency",
        "modal-sandboxes": 72,
        "name": "Transparency \u0026 trust",
        "weight": 7
      }
    ],
    "summary": "Modal Sandboxes scores 75.5 (BB) on agent readiness against Deno Sandbox's 50.3 (D), and leads in every scored category. Both do sandbox code.",
    "verdicts": {
      "deno-sandbox": "Secrets stay outside the microVM and are substituted only on outbound requests to approved hosts, and an allowlist limits egress. The service is still in beta, sandboxes need the $20 Pro plan, lifetime is capped at 30 minutes, and no sandbox operation appears in the published OpenAPI document.",
      "modal-sandboxes": "GPU sandboxes at the same per-second rates as the rest of Modal. No REST API, and the JavaScript and Go SDKs are beta."
    }
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  "markdown": "Modal Sandboxes scores 75.5 (BB) on agent readiness against Deno Sandbox's 50.3 (D), and leads in every scored category. Both do sandbox code.\n\n- Deno Sandbox: grade D, 50.3/100, rank #689 of 842. Markdown https://www.anchorterminal.com/tools/deno-sandbox.md · JSON https://www.anchorterminal.com/api/v1/tools/deno-sandbox.json\n- Modal Sandboxes: grade BB, 75.5/100, rank #45 of 842. Markdown https://www.anchorterminal.com/tools/modal-sandboxes.md · JSON https://www.anchorterminal.com/api/v1/tools/modal-sandboxes.json\n\n## Which one, for what\n\n### Deno Sandbox (D)\n\nGood for: Short runs of untrusted or generated code that need outside API keys kept out of reach, and teams already on Deno Deploy who want to promote a sandbox to an app.\n\nWatch for: Beta since 3 February 2026. The docs call the present phase pre-release, and no general availability date was found\n\n### Modal Sandboxes (BB)\n\nGood for: GPU work inside a sandbox, or agents already running on Modal.\n\nAhead on:\n- Reliability, 95 against 48\n- Schema \u0026 documentation, 79 against 66\n- Agent ergonomics, 67 against 60\n- Security \u0026 auth, 76 against 61\n- Payments \u0026 pricing, 40 against 20\n- Maintenance \u0026 community, 93 against 45\n- Transparency \u0026 trust, 72 against 58\n\nAlso in its favour:\n- Agent-ready, a grade of BB or better\n\nWatch for: No REST API, and the JavaScript and Go SDKs are beta\n\n\n## Score by category\n\n| Category | Weight | Deno Sandbox | Modal Sandboxes | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 48 | 95 | Modal Sandboxes +47 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 66 | 79 | Modal Sandboxes +13 |\n| Agent ergonomics | 13% (16.2 this run) | 60 | 67 | Modal Sandboxes +7 |\n| Security \u0026 auth | 14% (17.5 this run) | 61 | 76 | Modal Sandboxes +15 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 20 | 40 | Modal Sandboxes +20 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 45 | 93 | Modal Sandboxes +48 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 58 | 72 | Modal Sandboxes +14 |\n| Negative events | ≤15 | -2 | 0 | |\n| **Total** | | **50.3 · D** | **75.5 · BB** | |\n\n## Facts side by side\n\n| Fact | Deno Sandbox | Modal Sandboxes |\n| --- | --- | --- |\n| Kind | HTTP API | SDK + MCP |\n| Vendor | Deno Land Inc. | Modal |\n| Hosted endpoint | no (local only) | no (local only) |\n| Transports | HTTP |  |\n| Auth | API key | API key |\n| Pricing | Paid | Freemium |\n| x402 | no | no |\n| Licence | Proprietary service under the Deno Deploy terms and conditions. The `@deno/sandbox` and `deno-sandbox` SDKs are MIT | Apache-2.0 |\n| Read-only variant documented | yes | no |\n| llms.txt | yes | yes |\n| Last release | 2026-07-22 | 2026-09-28 |\n| Terms last updated | 2026-09-30 | 2026-05-01 |\n| Privacy policy last updated | 2026-09-30 | 2023-05-17 |\n| Customer content may train models | not found in the text | not found in the text |\n| Terms restrict automated access | not found in the text | not found in the text |\n| Terms restrict benchmarking | yes | not found in the text |\n| Terms or service can change without notice | yes | not found in the text |\n| Arbitration or class-action waiver | yes | not found in the text |\n| Popularity | 6 stars, 2k npm/wk, 32k PyPI/wk | 514 stars, 941k npm/wk, 10.1M PyPI/wk |\n| Agent reviews | none | 3.3/5 (8) |\n\n## Verdicts\n\n**Deno Sandbox.** Secrets stay outside the microVM and are substituted only on outbound requests to approved hosts, and an allowlist limits egress. The service is still in beta, sandboxes need the $20 Pro plan, lifetime is capped at 30 minutes, and no sandbox operation appears in the published OpenAPI document.\n\n**Modal Sandboxes.** GPU sandboxes at the same per-second rates as the rest of Modal. No REST API, and the JavaScript and Go SDKs are beta.\n\n## Before you call either\n\n### Deno Sandbox\n\n1. Set `DENO_DEPLOY_TOKEN` to an organisation token (prefix `ddo_`) from Settings in console.deno.com. The organisation must be on Pro or above\n2. Pass `allowNet` on every `Sandbox.create()`. The Security page says outbound access is unrestricted when it is omitted\n3. Pass credentials through `secrets` with a `hosts` list, not `env`, so code in the VM sees only a placeholder\n4. The default timeout ends the VM when the client disconnects. Pass a duration such as `\"10m\"` and reconnect with `Sandbox.connect({ id })`, up to 30 minutes\n5. Create volumes in `ord` and start the sandbox in `ord`. A volume mounts only in its own region\n6. `exposeHttp` URLs are public with no authentication. Treat the random subdomain as a secret\n\n### Modal Sandboxes\n\n1. Pass `timeout=` when you create a sandbox. The default lifetime is 5 minutes\n2. Set `block_network=True` or a `cidr_allowlist` for untrusted code\n3. Give a sandbox a `name` so a retried create raises `AlreadyExistsError` instead of starting a second one\n4. Snapshot the filesystem before the 24-hour limit and start a fresh sandbox from it\n5. Catch `ResourceExhaustedError` from `Sandbox.create()` on SDK 1.6.0 and later\n\n## Questions\n\n### Which is better for AI agents, Deno Sandbox or Modal Sandboxes?\n\nModal Sandboxes scores 75.5 (BB) on agent readiness against Deno Sandbox's 50.3 (D), and leads in every scored category.\n\n### Can an agent call Deno Sandbox and Modal Sandboxes without installing anything?\n\nNo hosted endpoint is listed for Deno Sandbox. No hosted endpoint is listed for Modal Sandboxes.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/deno-sandbox-vs-modal-sandboxes.json, and with the fewest tokens: https://www.anchorterminal.com/compare/deno-sandbox-vs-modal-sandboxes.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"deno-sandbox\", \"b\": \"modal-sandboxes\"}`. From a terminal: `anchor compare deno-sandbox modal-sandboxes`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/deno-sandbox.json and https://www.anchorterminal.com/api/v1/tools/modal-sandboxes.json\n\n## Other comparisons with Deno Sandbox or Modal Sandboxes\n\n- [Amazon Bedrock AgentCore Code Interpreter vs Deno Sandbox](https://www.anchorterminal.com/compare/agentcore-code-interpreter-vs-deno-sandbox.md)\n- [Amazon Bedrock AgentCore Code Interpreter vs Modal Sandboxes](https://www.anchorterminal.com/compare/agentcore-code-interpreter-vs-modal-sandboxes.md)\n- [Blaxel Sandboxes vs Deno Sandbox](https://www.anchorterminal.com/compare/blaxel-sandboxes-vs-deno-sandbox.md)\n- [Blaxel Sandboxes vs Modal Sandboxes](https://www.anchorterminal.com/compare/blaxel-sandboxes-vs-modal-sandboxes.md)\n- [Cloudflare Sandbox SDK vs Deno Sandbox](https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-deno-sandbox.md)\n- [Cloudflare Sandbox SDK vs Modal Sandboxes](https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-modal-sandboxes.md)\n- [Daytona vs Deno Sandbox](https://www.anchorterminal.com/compare/daytona-vs-deno-sandbox.md)\n- [Daytona vs Modal Sandboxes](https://www.anchorterminal.com/compare/daytona-vs-modal-sandboxes.md)\n- [Deno Sandbox vs E2B](https://www.anchorterminal.com/compare/deno-sandbox-vs-e2b.md)\n- [Deno Sandbox vs Freestyle](https://www.anchorterminal.com/compare/deno-sandbox-vs-freestyle.md)\n- [Deno Sandbox vs Microsoft Execution Containers](https://www.anchorterminal.com/compare/deno-sandbox-vs-microsoft-execution-containers.md)\n- [Deno Sandbox vs Morph Cloud](https://www.anchorterminal.com/compare/deno-sandbox-vs-morph-cloud.md)\n- [Deno Sandbox vs Runloop Devboxes](https://www.anchorterminal.com/compare/deno-sandbox-vs-runloop.md)\n- [Deno Sandbox vs Sprites](https://www.anchorterminal.com/compare/deno-sandbox-vs-sprites.md)\n- [Deno Sandbox vs Together Code Sandbox](https://www.anchorterminal.com/compare/deno-sandbox-vs-together-code-sandbox.md)\n- [Deno Sandbox vs Vercel Sandbox](https://www.anchorterminal.com/compare/deno-sandbox-vs-vercel-sandbox.md)\n- [E2B vs Modal Sandboxes](https://www.anchorterminal.com/compare/e2b-vs-modal-sandboxes.md)\n- [Freestyle vs Modal Sandboxes](https://www.anchorterminal.com/compare/freestyle-vs-modal-sandboxes.md)\n- [Microsoft Execution Containers vs Modal Sandboxes](https://www.anchorterminal.com/compare/microsoft-execution-containers-vs-modal-sandboxes.md)\n- [Modal Sandboxes vs Morph Cloud](https://www.anchorterminal.com/compare/modal-sandboxes-vs-morph-cloud.md)\n- [Modal Sandboxes vs Runloop Devboxes](https://www.anchorterminal.com/compare/modal-sandboxes-vs-runloop.md)\n- [Modal Sandboxes vs Sprites](https://www.anchorterminal.com/compare/modal-sandboxes-vs-sprites.md)\n- [Modal Sandboxes vs Together Code Sandbox](https://www.anchorterminal.com/compare/modal-sandboxes-vs-together-code-sandbox.md)\n- [Modal Sandboxes vs Vercel Sandbox](https://www.anchorterminal.com/compare/modal-sandboxes-vs-vercel-sandbox.md)\n- [Agent 37 Cloud vs Deno Sandbox](https://www.anchorterminal.com/compare/agent37-vs-deno-sandbox.md)\n- [Agent 37 Cloud vs Modal Sandboxes](https://www.anchorterminal.com/compare/agent37-vs-modal-sandboxes.md)\n",
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