{
  "data": {
    "a": {
      "slug": "agent37",
      "name": "Agent 37 Cloud",
      "vendor": "Agent 37 Inc.",
      "vendorUrl": "https://www.agent37.com/cloud",
      "kind": "http-api",
      "category": "code-sandboxes",
      "summary": "Agent 37 Cloud hosts persistent Linux sandboxes for agent harnesses such as Hermes, OpenClaw, Claude Code and Codex, or a custom Docker image. A REST API creates instances, runs commands, manages files and sends messages to the agent inside.",
      "url": "https://www.anchorterminal.com/tools/agent37",
      "markdownUrl": "https://www.anchorterminal.com/tools/agent37.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/agent37.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/agent37.json",
      "repo": "https://github.com/agent37-platform/templates",
      "license": "Proprietary service under Agent 37's terms of service. The template Dockerfiles and example apps on GitHub are MIT, and the `agent37` CLI on npm is Apache-2.0",
      "transports": [
        "http"
      ],
      "remoteUrl": "https://api.agent37.com/v1",
      "packages": [
        {
          "registry": "npm",
          "name": "agent37"
        }
      ],
      "auth": "api-key",
      "authNotes": "Self-serve. A person signs up, adds a card and creates an `sk_live_` key in the dashboard, where the full key is shown once. The key is workspace-wide and goes in `Authorization: Bearer` on https://api.agent37.com/v1 and in the `X-Agent37-Key` header on each instance URL. A key can carry an IP allowlist of up to 20 addresses or CIDR ranges. No scopes, read-only keys or key-creation API were found. Browsers reach an instance port through a signed URL that lasts 60 seconds to seven days and can't be revoked.",
      "pricing": "usage",
      "pricingNotes": "Prepaid balance, metered per minute. $0.80 a vCPU-month, $0.70 a GB-month of memory and $0.09 a GB-month of disk on a 730-hour month, so 2 vCPU and 4 GB with a 4 GB disk is $4.76 a month running and $0.36 a month asleep or stopped. Performance instances on dedicated cores cost four times the compute rate. Adding a card grants a one-time $5 credit with nothing charged, limited to one 2 vCPU, 4 GB instance until the first top-up. Top-ups are $5 to $10,000 through Stripe, and automatic top-up is on by default after the first one. Managed model, search and integration calls bill at cost from the same balance (https://www.agent37.com/docs/agents-api/billing, checked 2026-10-08).",
      "priceSummary": "$0.0011 / vCPU-hr",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the docs (llms-full.txt), the pricing page or the terms (checked 2026-10-08). The wallet is topped up by card through Stripe in the dashboard.",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": null,
        "npmWeekly": 74,
        "pypiWeekly": null,
        "asOf": "2026-10-08"
      },
      "docsUrl": "https://www.agent37.com/docs",
      "llmsTxt": "https://www.agent37.com/docs/llms.txt",
      "capabilities": [
        "sandbox.persist",
        "sandbox.code",
        "sandbox.fs",
        "sandbox.browser"
      ],
      "tags": [
        "hosted",
        "usage",
        "llms-txt",
        "cli",
        "docker",
        "yc",
        "new"
      ],
      "lastRelease": "2026-10-05",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 46.1,
        "grade": "D",
        "agentReady": false,
        "rank": 998,
        "ranked": true,
        "rankOf": 1199,
        "categoryRank": 20,
        "methodology": "0.6",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 60,
          "maintenance": 65,
          "payments": 20,
          "reliability": 27,
          "schema": 57,
          "security": 49,
          "transparency": 56
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-08"
        },
        "negative": 0,
        "verdict": "Instances keep their disk until deleted, sleep when idle and wake on the next request, with compute published at $0.80 a vCPU-month and stable error codes on both APIs. The product launched on 29 September 2026. No status page, OpenAPI file, SDK library or published rate limits were found, and the starter credit needs a card.",
        "bestFor": "A product that gives each end user a long-lived agent machine that is idle most of the day and needs a harness preinstalled.",
        "strengths": [
          "Disk persists until delete, and auto-sleep checkpoints an idle instance so that only disk bills ($0.09 a GB-month)",
          "Per-unit prices are public. A 2 vCPU, 4 GB instance running all month is $4.76, metered per minute",
          "Stable error codes on both APIs, with `param` and `hint` fields and written retry guidance for each transient code",
          "llms.txt, a 637 KB llms-full.txt and a Markdown copy of each of the 49 docs pages",
          "API keys take an IP allowlist of up to 20 addresses or ranges, and each instance has its own managed-spend cap"
        ],
        "weaknesses": [
          "No status page was found. status.agent37.com returns 404, and the terms promise no uptime level",
          "No OpenAPI file, SDK library or public changelog was found. The npm package `agent37` is a CLI",
          "No API rate limits are published beyond one on-demand backup per instance every 15 minutes",
          "One workspace-wide key controls every instance. No scopes or read-only keys were found",
          "The $5 starter credit needs a card on file, and keys and top-ups exist only in the dashboard",
          "The launch is dated 29 September 2026 and the public templates repository starts on 2 October 2026"
        ],
        "agentNotes": [
          "Send the key as `Authorization: Bearer` to api.agent37.com and as `X-Agent37-Key` to the instance URL. The Bearer form on instance URLs is deprecated",
          "Poll `GET /v1/health` on the instance URL for `\"healthy\": true` before the first message. `status: running` only means the machine is up",
          "Check whether `error` is a string before reading `error.code`. Transport errors are flat strings, and a failed turn returns 200 with `status: \"failed\"`",
          "Don't blindly retry an exec that timed out after 13 minutes. The command keeps running, so a retry starts a second copy",
          "Set `auto_sleep: true`, keep anything that must survive a sleep in a file, and allow a first-byte timeout of three minutes for wakes"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 4,
        "avgRating": 2.8,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "D",
            "methodology": "0.6",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 46.1
          }
        ],
        "editorialScores": {
          "ergonomics": 60,
          "maintenance": 65,
          "payments": 20,
          "reliability": 27,
          "schema": 57,
          "security": 49,
          "transparency": 56
        },
        "provenanceScore": 56,
        "checked": {
          "categories": {
            "ergonomics": "2026-10-08",
            "maintenance": "2026-10-08",
            "payments": "2026-10-08",
            "reliability": "2026-10-08",
            "schema": "2026-10-08",
            "security": "2026-10-08",
            "transparency": "2026-10-08"
          },
          "last": "2026-10-08",
          "oldest": "2026-10-08",
          "stale": false,
          "staleAfterDays": 90
        }
      },
      "connect": {
        "http": "curl -X POST https://api.agent37.com/v1/instances \\\n  -H \"Authorization: Bearer sk_live_...\" \\\n  -H \"Content-Type: application/json\" \\\n  -d '{ \"budget\": { \"credit_micros\": 1000000 } }'"
      },
      "letme": {
        "capability": "https://letme.dev/sandbox.persist",
        "tool": "https://letme.dev/agent37"
      },
      "area": "agent-runtime",
      "unitPrices": [
        {
          "item": "vCPU",
          "unit": "vcpu-hour",
          "usd": 0.001096,
          "note": "$0.80 a vCPU-month over 730 hours. Memory extra at $0.70 a GB-month, and Performance instances cost four times the compute rate"
        },
        {
          "item": "Default instance (2 vCPU, 4 GB, 4 GB disk)",
          "unit": "session-hour",
          "usd": 0.00652,
          "note": "$4.76 a month running, metered per minute. $0.36 a month asleep or stopped"
        },
        {
          "item": "Disk",
          "unit": "gb-month",
          "usd": 0.09,
          "note": "Billed until the instance is deleted. $0.03 a GB-month on compressed bytes once parked in cold storage"
        }
      ],
      "provenance": {
        "legalEntity": "Agent 37 Inc.",
        "domain": "agent37.com",
        "domainRegistered": "2025-04-29",
        "endpointOnVendorDomain": true,
        "terms": "https://www.agent37.com/terms",
        "privacy": "https://www.agent37.com/privacy",
        "statusPage": "",
        "changelog": "",
        "securityTxt": "none",
        "checked": "2026-10-08",
        "notes": [
          "The terms (last updated 4 August 2026) name Agent 37 Inc. under New York law. The privacy policy (last updated 1 September 2026) names Agent 37 Inc. and, in its representative section, Agent37.com Inc.",
          "The Hosting API answers at api.agent37.com and instances at {id}.agent37.app, a second domain the docs describe as the vendor's.",
          "www.agent37.com/.well-known/security.txt returns 404. The site footer has a Report abuse link and no disclosure policy was found.",
          "status.agent37.com returns 404 (deployment not found) and no status page is linked from the site or docs. No changelog page was found.",
          "RDAP for agent37.com gives a registration date of 2025-04-29 and NameCheap, Inc. as registrar.",
          "trust.agent37.com answered 403 to our reader, so the trust centre is unread."
        ],
        "score": 56
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/agent37.json",
      "live": {
        "slug": "agent37",
        "probe": {
          "target": "https://api.agent37.com/v1",
          "method": "get",
          "lastAt": "2026-10-22T11:16:17.939419643Z",
          "lastOk": true,
          "lastStatus": 404,
          "lastMs": 57,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 73,
          "p95ms24h": 460,
          "samples24h": 253,
          "samples30d": 3475,
          "days": [
            {
              "date": "2026-10-08",
              "probes": 93,
              "ok": 93
            },
            {
              "date": "2026-10-09",
              "probes": 250,
              "ok": 250
            },
            {
              "date": "2026-10-10",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-11",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-12",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-13",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-14",
              "probes": 249,
              "ok": 249
            },
            {
              "date": "2026-10-15",
              "probes": 253,
              "ok": 253
            },
            {
              "date": "2026-10-16",
              "probes": 252,
              "ok": 252
            },
            {
              "date": "2026-10-17",
              "probes": 253,
              "ok": 253
            },
            {
              "date": "2026-10-18",
              "probes": 256,
              "ok": 256
            },
            {
              "date": "2026-10-19",
              "probes": 255,
              "ok": 255
            },
            {
              "date": "2026-10-20",
              "probes": 252,
              "ok": 252
            },
            {
              "date": "2026-10-21",
              "probes": 253,
              "ok": 253
            },
            {
              "date": "2026-10-22",
              "probes": 120,
              "ok": 120
            }
          ]
        },
        "versions": [
          {
            "registry": "npm",
            "name": "agent37",
            "version": "0.4.1",
            "seenAt": "2026-10-22T07:10:18.45509169Z"
          }
        ],
        "githubStars": 0,
        "npmWeekly": 981,
        "securityTxt": {
          "url": "https://agent37.com/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-10-21T15:58:23.302746906Z"
        },
        "llmsTxt": {
          "url": "https://www.agent37.com/docs/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-21T14:32:40.884490643Z"
        },
        "domain": {
          "domain": "agent37.com",
          "registered": "2025-04-29",
          "source": "https://rdap.verisign.com/com/v1/domain/agent37.com",
          "checkedAt": "2026-10-18T13:31:24.097589884Z"
        },
        "pages": [
          {
            "url": "https://www.agent37.com/privacy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-22T01:28:45.447151088Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "b53eb275b6a4"
          },
          {
            "url": "https://www.agent37.com/terms",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-22T01:28:47.938178623Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "7eac1e3b26de"
          }
        ],
        "github": {
          "repo": "agent37-platform/templates",
          "checkedAt": "2026-10-19T05:50:39.676546502Z",
          "stars": 0,
          "archived": false,
          "issuesEnabled": true,
          "pushedAt": "2026-10-17T07:17:58Z",
          "openIssues": 0,
          "openPRs": 0,
          "issuesOpened90d": 0,
          "issuesClosed90d": 0,
          "prsMerged90d": 25,
          "ci": {
            "branch": "main",
            "runs": 25,
            "success": 25,
            "failure": 0,
            "other": 0,
            "latest": "success",
            "latestAt": "2026-10-17T07:15:55Z"
          }
        },
        "updatedAt": "2026-10-22T11:16:17.939419643Z"
      }
    },
    "answer": "Sandbox0 scores 55.1 (C) on agent readiness against Agent 37 Cloud's 46.1 (D), and leads in 6 of 7 scored categories. Agent 37 Cloud leads on transparency \u0026 trust.",
    "b": {
      "slug": "sandbox0",
      "name": "Sandbox0",
      "vendor": "Lougao, LLC (Sandbox0)",
      "vendorUrl": "https://sandbox0.ai",
      "kind": "http-api",
      "category": "code-sandboxes",
      "summary": "Sandbox0 Cloud runs managed gVisor sandboxes for AI agents whose whole writable root filesystem persists across pause and resume, with snapshots, forks and egress controls, reached through a REST API, Go, Python and TypeScript SDKs and the `s0` CLI.",
      "url": "https://www.anchorterminal.com/tools/sandbox0",
      "markdownUrl": "https://www.anchorterminal.com/tools/sandbox0.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/sandbox0.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/sandbox0.json",
      "repo": "https://github.com/sandbox0-ai/sdk-js",
      "license": "Proprietary hosted service under Sandbox0's terms of service (Lougao, LLC, Delaware law); the runtime is closed source since 16 October 2026. The `s0` CLI and the Go, Python and TypeScript SDKs are Apache-2.0 on GitHub. The earlier Apache-2.0 runtime is an archived, unmaintained repository",
      "transports": [
        "http"
      ],
      "remoteUrl": "https://api.sandbox0.ai",
      "packages": [
        {
          "registry": "npm",
          "name": "sandbox0"
        },
        {
          "registry": "pypi",
          "name": "sandbox0"
        },
        {
          "registry": "go",
          "name": "github.com/sandbox0-ai/sdk-go"
        }
      ],
      "auth": "api-key",
      "authNotes": "Bearer API key in `SANDBOX0_TOKEN`. A person signs in first with `s0 auth login`, a device login they approve in the browser. Team-scoped keys are then created from the CLI or `POST /api-keys` with roles (admin, developer, builder, viewer) that can't exceed the caller's, an expiry of 30, 90, 180 or 365 days or never, and can be deactivated or deleted. `GET /api-keys/current` returns a key's identity and permissions. Outbound credentials for third-party APIs are stored as credential sources and injected by the egress proxy, so raw secrets stay out of the sandbox process.",
      "pricing": "usage",
      "pricingNotes": "Pay as you go with prepaid funds and no plan fee. Compute is $0.015 per GiB-hour of the configured memory limit (about $0.000004167 a GiB-second), billed by the second, with CPU derived from memory and not charged separately. Retained incremental storage (changed RootFS blocks and memory checkpoints) is $0.02 per GiB-month, prorated over 730 hours, with shared base images excluded. Ingress, egress and object-store requests are $0.00, egress \"for now\". New users get a one-time $5 credit with no card. Paused sandboxes are charged for storage only. Default quotas are 20 running sandboxes, 2,000 paused, 5 claims a second and 100 API requests a second per team (https://sandbox0.ai/pricing).",
      "priceSummary": "$0.015 / unit",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the docs, llms.txt, pricing page or the OpenAPI file in the SDK repositories. Funds are prepaid through the dashboard (checked 2026-10-21).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": 88,
        "npmWeekly": 268,
        "pypiWeekly": 82,
        "asOf": "2026-10-21"
      },
      "docsUrl": "https://sandbox0.ai/docs/sandbox",
      "llmsTxt": "https://sandbox0.ai/llms.txt",
      "openapi": "https://github.com/sandbox0-ai/sdk-go/blob/main/openapi.yaml",
      "capabilities": [
        "sandbox.code",
        "sandbox.persist",
        "sandbox.fs",
        "sandbox.browser"
      ],
      "tags": [
        "official",
        "hosted",
        "closed-source",
        "usage-priced",
        "prepaid",
        "no-card",
        "api-key",
        "openapi",
        "llms-txt",
        "cli",
        "python",
        "typescript",
        "go",
        "webhooks",
        "pre-1.0",
        "new"
      ],
      "lastRelease": "2026-10-21",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 55.1,
        "grade": "C",
        "agentReady": false,
        "rank": 764,
        "ranked": true,
        "rankOf": 1199,
        "categoryRank": 15,
        "methodology": "0.6",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 74,
          "maintenance": 76,
          "payments": 40,
          "reliability": 38,
          "schema": 77,
          "security": 58,
          "transparency": 48
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-21"
        },
        "negative": -3,
        "negativeNotes": [
          "2026-10-16, -3. Self-hosting was discontinued the day it was announced. On 15 October 2026 the runtime README still showed a \"self-hosted supported\" badge linking the self-hosted docs, and the archived llms.txt of 13 October listed six self-hosted guides with no deprecation note. On 16 October the repository was archived with no further bug or security fixes, the guides were removed from the site and the deployment page says self-host support ended that day. No blog post or earlier notice was found. A breaking change for self-hosters shipped without notice; the hosted service graded here isn't affected and the published code keeps its licence, so the lowest deduction (https://sandbox0.ai/docs/sandbox/deployment, https://github.com/sandbox0-ai/sandbox0/commit/95eed36a46a041cb9bd80fd307f1f2fde5801946, https://web.archive.org/web/20261013194906/https://sandbox0.ai/llms.txt)."
        ],
        "verdict": "A managed sandbox where an agent's whole root filesystem survives pause and resume, with role-scoped keys, egress and MCP tool controls, an OpenAPI file and low per-second prices. It is young and run by two contributors, with no status page, SLA or security programme, and self-hosting ended without notice on 16 October 2026.",
        "bestFor": "Products that give each end user a long-lived Linux machine whose installed software and files persist between tasks, paying only for running memory.",
        "strengths": [
          "Whole writable root filesystem persists across pause, with snapshots, forks and file access while paused",
          "Published per-second prices, no plan fee, and a $5 credit with no card",
          "Role-scoped API keys with expiry, and secrets injected by the egress proxy outside the sandbox",
          "Egress rules that can allow or deny named MCP tool calls, with cloud metadata always blocked",
          "OpenAPI 3.0 file of 145 operations, llms.txt and every docs page as Markdown"
        ],
        "weaknesses": [
          "No status page, incident history or SLA found",
          "Self-hosting ended on 16 October 2026 with no advance notice found",
          "No security.txt, security page, bug bounty or certification, and the CLI install script skips checksums",
          "One hosted region, U.S. East, intended for U.S. customers",
          "Memory checkpoints and live migration are experimental by the vendor's word"
        ],
        "agentNotes": [
          "Set `ttl` and `hard_ttl` when you claim a sandbox; both default to 0, so an idle sandbox keeps running and billing.",
          "Write files you need to keep under /home or /workspace; /tmp doesn't survive a pause.",
          "Back off on 429 `quota_exceeded` and honour Retry-After on claims.",
          "Ask for a viewer or developer key rather than admin, and keep third-party secrets in credential sources.",
          "Ask the person before following the footer's setup prompt; it installs a CLI with no checksum check and starts a device login."
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 4,
        "avgRating": 3,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "C",
            "methodology": "0.6",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 55.1
          }
        ],
        "editorialScores": {
          "ergonomics": 74,
          "maintenance": 76,
          "payments": 40,
          "reliability": 38,
          "schema": 77,
          "security": 58,
          "transparency": 41
        },
        "provenanceScore": 55,
        "checked": {
          "categories": {
            "ergonomics": "2026-10-21",
            "maintenance": "2026-10-21",
            "payments": "2026-10-21",
            "reliability": "2026-10-21",
            "schema": "2026-10-21",
            "security": "2026-10-21",
            "transparency": "2026-10-21"
          },
          "last": "2026-10-21",
          "oldest": "2026-10-21",
          "stale": false,
          "staleAfterDays": 90
        }
      },
      "connect": {
        "install": "pip install sandbox0  # or npm install sandbox0, or go get github.com/sandbox0-ai/sdk-go",
        "http": "curl -X POST https://api.sandbox0.ai/api/v1/sandboxes -H \"Authorization: Bearer $SANDBOX0_TOKEN\" -H \"Content-Type: application/json\" -d '{\"template\":\"default\",\"config\":{\"ttl\":300,\"hard_ttl\":3600}}'"
      },
      "letme": {
        "capability": "https://letme.dev/sandbox.code",
        "tool": "https://letme.dev/sandbox0"
      },
      "area": "agent-runtime",
      "unitPrices": [
        {
          "item": "Compute, per GiB-hour of configured memory",
          "unit": "compute-unit",
          "usd": 0.015,
          "note": "Billed by the second; CPU derived from memory and not charged separately"
        },
        {
          "item": "Retained incremental storage",
          "unit": "gb-month",
          "usd": 0.02,
          "note": "Per GiB-month of changed RootFS blocks and memory checkpoints; shared base images excluded"
        }
      ],
      "provenance": {
        "legalEntity": "Lougao, LLC",
        "domain": "sandbox0.ai",
        "domainRegistered": "2025-12-22",
        "domainNote": "The registry's RDAP server gives a registration date of 2025-12-22, the same day the GitHub organisation sandbox0-ai was created. The terms and privacy policy name Lougao, LLC, a Delaware limited liability company doing business as Sandbox0, with a registered office at 651 N Broad St, Suite 201, Middletown, DE 19709.",
        "endpointOnVendorDomain": true,
        "terms": "https://sandbox0.ai/terms",
        "privacy": "https://sandbox0.ai/privacy",
        "statusPage": "",
        "changelog": "",
        "securityTxt": "none",
        "checked": "2026-10-21",
        "notes": [
          "The terms of service (effective 17 June 2026) are between the user and Lougao, LLC under Delaware law and courts. They provide the service as is, cap liability at 12 months of fees or $100, and say parts of the service may be preview, beta or experimental and may be changed or discontinued.",
          "sandbox0.ai/.well-known/security.txt, /security, /status and /changelog answer 404, and status.sandbox0.ai doesn't resolve. The archived runtime's SUPPORT.md sends security reports to contact@sandbox0.ai.",
          "robots.txt on sandbox0.ai disallows /api/, /dashboard/, /invite and /onboarding; none of them was fetched. api.sandbox0.ai answers 404 at its root."
        ],
        "score": 55
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/sandbox0.json",
      "live": {
        "slug": "sandbox0",
        "probe": {
          "target": "https://api.sandbox0.ai",
          "method": "get",
          "lastAt": "2026-10-22T11:16:46.516239968Z",
          "lastOk": true,
          "lastStatus": 404,
          "lastMs": 170,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 177,
          "p95ms24h": 260,
          "samples24h": 46,
          "samples30d": 46,
          "days": [
            {
              "date": "2026-10-22",
              "probes": 46,
              "ok": 46
            }
          ]
        },
        "versions": [
          {
            "registry": "github",
            "name": "sandbox0-ai/sdk-js",
            "version": "v0.10.5",
            "released": "2026-10-21",
            "seenAt": "2026-10-22T08:14:07.513243287Z"
          },
          {
            "registry": "npm",
            "name": "sandbox0",
            "version": "0.10.5",
            "seenAt": "2026-10-22T08:14:03.65438415Z"
          },
          {
            "registry": "pypi",
            "name": "sandbox0",
            "version": "0.10.4",
            "released": "2026-10-08",
            "seenAt": "2026-10-22T08:14:07.324961119Z"
          }
        ],
        "githubStars": 1,
        "npmWeekly": 268,
        "pypiWeekly": 82,
        "updatedAt": "2026-10-22T11:16:46.516239968Z"
      }
    },
    "facts": [
      {
        "a": "HTTP API",
        "b": "HTTP API",
        "name": "Kind"
      },
      {
        "a": "Agent 37 Inc.",
        "b": "Lougao, LLC (Sandbox0)",
        "name": "Vendor"
      },
      {
        "a": "https://api.agent37.com/v1",
        "b": "https://api.sandbox0.ai",
        "name": "Hosted endpoint"
      },
      {
        "a": "HTTP",
        "b": "HTTP",
        "name": "Transports"
      },
      {
        "a": "API key",
        "b": "API key",
        "name": "Auth"
      },
      {
        "a": "Pay per use",
        "b": "Pay per use",
        "name": "Pricing"
      },
      {
        "a": "no",
        "b": "no",
        "name": "x402"
      },
      {
        "a": "Proprietary service under Agent 37's terms of service. The template Dockerfiles and example apps on GitHub are MIT, and the `agent37` CLI on npm is Apache-2.0",
        "b": "Proprietary hosted service under Sandbox0's terms of service (Lougao, LLC, Delaware law); the runtime is closed source since 16 October 2026. The `s0` CLI and the Go, Python and TypeScript SDKs are Apache-2.0 on GitHub. The earlier Apache-2.0 runtime is an archived, unmaintained repository",
        "name": "Licence"
      },
      {
        "a": "no",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "llms.txt"
      },
      {
        "a": "2026-10-05",
        "b": "2026-10-21",
        "name": "Last release"
      },
      {
        "a": "2026-08-04",
        "b": "",
        "name": "Terms last updated"
      },
      {
        "a": "2026-09-01",
        "b": "",
        "name": "Privacy policy last updated"
      },
      {
        "a": "not found in the text",
        "b": "",
        "name": "Customer content may train models"
      },
      {
        "a": "not found in the text",
        "b": "",
        "name": "Terms restrict automated access"
      },
      {
        "a": "not found in the text",
        "b": "",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "not found in the text",
        "b": "",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "not found in the text",
        "b": "",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "74 npm/wk",
        "b": "88 stars, 268 npm/wk, 82 PyPI/wk",
        "name": "Popularity"
      },
      {
        "a": "2.8/5 (4)",
        "b": "3/5 (4)",
        "name": "Agent reviews"
      }
    ],
    "faq": [
      {
        "answer": "Sandbox0 scores 55.1 (C) on agent readiness against Agent 37 Cloud's 46.1 (D), and leads in 6 of 7 scored categories. Agent 37 Cloud leads on transparency \u0026 trust.",
        "question": "Which is better for AI agents, Agent 37 Cloud or Sandbox0?"
      },
      {
        "answer": "Both need an API key.",
        "question": "Do Agent 37 Cloud and Sandbox0 need an API key?"
      },
      {
        "answer": "Yes. Agent 37 Cloud has a hosted endpoint at https://api.agent37.com/v1 and Sandbox0 at https://api.sandbox0.ai.",
        "question": "Can an agent call Agent 37 Cloud and Sandbox0 without installing anything?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Transparency \u0026 trust, 56 against 48"
        ],
        "also": [
          "No incidents deducted, where Sandbox0 loses 3 points for them"
        ],
        "goodFor": "A product that gives each end user a long-lived agent machine that is idle most of the day and needs a harness preinstalled.",
        "slug": "agent37",
        "watchFor": "No status page was found. status.agent37.com returns 404, and the terms promise no uptime level"
      },
      {
        "aheadOn": [
          "Reliability, 38 against 27",
          "Schema \u0026 documentation, 77 against 57",
          "Agent ergonomics, 74 against 60",
          "Security \u0026 auth, 58 against 49",
          "Payments \u0026 pricing, 40 against 20",
          "Maintenance \u0026 community, 76 against 65"
        ],
        "also": [
          "Free to start without a card"
        ],
        "goodFor": "Products that give each end user a long-lived Linux machine whose installed software and files persist between tasks, paying only for running memory.",
        "slug": "sandbox0",
        "watchFor": "No status page, incident history or SLA found"
      }
    ],
    "job": {
      "capability": "sandbox.persist",
      "name": "Persistent sandboxes"
    },
    "others": [
      {
        "json": "https://www.anchorterminal.com/compare/agent37-vs-agentcore-code-interpreter.json",
        "title": "Agent 37 Cloud vs Amazon Bedrock AgentCore Code Interpreter",
        "url": "https://www.anchorterminal.com/compare/agent37-vs-agentcore-code-interpreter"
      },
      {
        "json": "https://www.anchorterminal.com/compare/agent37-vs-offscreen.json",
        "title": "Agent 37 Cloud vs Offscreen",
        "url": "https://www.anchorterminal.com/compare/agent37-vs-offscreen"
      },
      {
        "json": "https://www.anchorterminal.com/compare/agentcore-code-interpreter-vs-sandbox0.json",
        "title": "Amazon Bedrock AgentCore Code Interpreter vs Sandbox0",
        "url": "https://www.anchorterminal.com/compare/agentcore-code-interpreter-vs-sandbox0"
      },
      {
        "json": "https://www.anchorterminal.com/compare/blaxel-sandboxes-vs-sandbox0.json",
        "title": "Blaxel Sandboxes vs Sandbox0",
        "url": "https://www.anchorterminal.com/compare/blaxel-sandboxes-vs-sandbox0"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-sandbox0.json",
        "title": "Cloudflare Sandbox SDK vs Sandbox0",
        "url": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-sandbox0"
      },
      {
        "json": "https://www.anchorterminal.com/compare/daytona-vs-sandbox0.json",
        "title": "Daytona vs Sandbox0",
        "url": "https://www.anchorterminal.com/compare/daytona-vs-sandbox0"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deno-sandbox-vs-sandbox0.json",
        "title": "Deno Sandbox vs Sandbox0",
        "url": "https://www.anchorterminal.com/compare/deno-sandbox-vs-sandbox0"
      },
      {
        "json": "https://www.anchorterminal.com/compare/e2b-vs-sandbox0.json",
        "title": "E2B vs Sandbox0",
        "url": "https://www.anchorterminal.com/compare/e2b-vs-sandbox0"
      },
      {
        "json": "https://www.anchorterminal.com/compare/freestyle-vs-sandbox0.json",
        "title": "Freestyle vs Sandbox0",
        "url": "https://www.anchorterminal.com/compare/freestyle-vs-sandbox0"
      },
      {
        "json": "https://www.anchorterminal.com/compare/maritime-vs-sandbox0.json",
        "title": "Maritime vs Sandbox0",
        "url": "https://www.anchorterminal.com/compare/maritime-vs-sandbox0"
      },
      {
        "json": "https://www.anchorterminal.com/compare/microsoft-execution-containers-vs-sandbox0.json",
        "title": "Microsoft Execution Containers vs Sandbox0",
        "url": "https://www.anchorterminal.com/compare/microsoft-execution-containers-vs-sandbox0"
      },
      {
        "json": "https://www.anchorterminal.com/compare/modal-sandboxes-vs-sandbox0.json",
        "title": "Modal Sandboxes vs Sandbox0",
        "url": "https://www.anchorterminal.com/compare/modal-sandboxes-vs-sandbox0"
      },
      {
        "json": "https://www.anchorterminal.com/compare/morph-cloud-vs-sandbox0.json",
        "title": "Morph Cloud vs Sandbox0",
        "url": "https://www.anchorterminal.com/compare/morph-cloud-vs-sandbox0"
      },
      {
        "json": "https://www.anchorterminal.com/compare/offscreen-vs-sandbox0.json",
        "title": "Offscreen vs Sandbox0",
        "url": "https://www.anchorterminal.com/compare/offscreen-vs-sandbox0"
      },
      {
        "json": "https://www.anchorterminal.com/compare/perplexity-space-vs-sandbox0.json",
        "title": "SPACE vs Sandbox0",
        "url": "https://www.anchorterminal.com/compare/perplexity-space-vs-sandbox0"
      },
      {
        "json": "https://www.anchorterminal.com/compare/runloop-vs-sandbox0.json",
        "title": "Runloop Devboxes vs Sandbox0",
        "url": "https://www.anchorterminal.com/compare/runloop-vs-sandbox0"
      },
      {
        "json": "https://www.anchorterminal.com/compare/sandbox0-vs-sprites.json",
        "title": "Sandbox0 vs Sprites",
        "url": "https://www.anchorterminal.com/compare/sandbox0-vs-sprites"
      },
      {
        "json": "https://www.anchorterminal.com/compare/sandbox0-vs-together-code-sandbox.json",
        "title": "Sandbox0 vs Together Code Sandbox",
        "url": "https://www.anchorterminal.com/compare/sandbox0-vs-together-code-sandbox"
      },
      {
        "json": "https://www.anchorterminal.com/compare/sandbox0-vs-vercel-sandbox.json",
        "title": "Sandbox0 vs Vercel Sandbox",
        "url": "https://www.anchorterminal.com/compare/sandbox0-vs-vercel-sandbox"
      },
      {
        "json": "https://www.anchorterminal.com/compare/agent37-vs-blaxel-sandboxes.json",
        "title": "Agent 37 Cloud vs Blaxel Sandboxes",
        "url": "https://www.anchorterminal.com/compare/agent37-vs-blaxel-sandboxes"
      },
      {
        "json": "https://www.anchorterminal.com/compare/agent37-vs-cloudflare-sandbox-sdk.json",
        "title": "Agent 37 Cloud vs Cloudflare Sandbox SDK",
        "url": "https://www.anchorterminal.com/compare/agent37-vs-cloudflare-sandbox-sdk"
      },
      {
        "json": "https://www.anchorterminal.com/compare/agent37-vs-daytona.json",
        "title": "Agent 37 Cloud vs Daytona",
        "url": "https://www.anchorterminal.com/compare/agent37-vs-daytona"
      },
      {
        "json": "https://www.anchorterminal.com/compare/agent37-vs-deltabox-lite.json",
        "title": "Agent 37 Cloud vs DeltaBox Lite",
        "url": "https://www.anchorterminal.com/compare/agent37-vs-deltabox-lite"
      },
      {
        "json": "https://www.anchorterminal.com/compare/agent37-vs-deno-sandbox.json",
        "title": "Agent 37 Cloud vs Deno Sandbox",
        "url": "https://www.anchorterminal.com/compare/agent37-vs-deno-sandbox"
      },
      {
        "json": "https://www.anchorterminal.com/compare/agent37-vs-e2b.json",
        "title": "Agent 37 Cloud vs E2B",
        "url": "https://www.anchorterminal.com/compare/agent37-vs-e2b"
      },
      {
        "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-maritime.json",
        "title": "Agent 37 Cloud vs Maritime",
        "url": "https://www.anchorterminal.com/compare/agent37-vs-maritime"
      },
      {
        "json": "https://www.anchorterminal.com/compare/agent37-vs-microsoft-execution-containers.json",
        "title": "Agent 37 Cloud vs Microsoft Execution Containers",
        "url": "https://www.anchorterminal.com/compare/agent37-vs-microsoft-execution-containers"
      },
      {
        "json": "https://www.anchorterminal.com/compare/agent37-vs-modal-sandboxes.json",
        "title": "Agent 37 Cloud vs Modal Sandboxes",
        "url": "https://www.anchorterminal.com/compare/agent37-vs-modal-sandboxes"
      },
      {
        "json": "https://www.anchorterminal.com/compare/agent37-vs-morph-cloud.json",
        "title": "Agent 37 Cloud vs Morph Cloud",
        "url": "https://www.anchorterminal.com/compare/agent37-vs-morph-cloud"
      },
      {
        "json": "https://www.anchorterminal.com/compare/agent37-vs-perplexity-space.json",
        "title": "Agent 37 Cloud vs SPACE",
        "url": "https://www.anchorterminal.com/compare/agent37-vs-perplexity-space"
      },
      {
        "json": "https://www.anchorterminal.com/compare/agent37-vs-runloop.json",
        "title": "Agent 37 Cloud vs Runloop Devboxes",
        "url": "https://www.anchorterminal.com/compare/agent37-vs-runloop"
      },
      {
        "json": "https://www.anchorterminal.com/compare/agent37-vs-sprites.json",
        "title": "Agent 37 Cloud vs Sprites",
        "url": "https://www.anchorterminal.com/compare/agent37-vs-sprites"
      },
      {
        "json": "https://www.anchorterminal.com/compare/agent37-vs-together-code-sandbox.json",
        "title": "Agent 37 Cloud vs Together Code Sandbox",
        "url": "https://www.anchorterminal.com/compare/agent37-vs-together-code-sandbox"
      },
      {
        "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"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deltabox-lite-vs-sandbox0.json",
        "title": "DeltaBox Lite vs Sandbox0",
        "url": "https://www.anchorterminal.com/compare/deltabox-lite-vs-sandbox0"
      }
    ],
    "scores": [
      {
        "agent37": 27,
        "by": 11,
        "edge": "sandbox0",
        "key": "reliability",
        "name": "Reliability",
        "sandbox0": 38,
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "agent37": 57,
        "by": 20,
        "edge": "sandbox0",
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "sandbox0": 77,
        "weight": 13
      },
      {
        "agent37": 60,
        "by": 14,
        "edge": "sandbox0",
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "sandbox0": 74,
        "weight": 13
      },
      {
        "agent37": 49,
        "by": 9,
        "edge": "sandbox0",
        "key": "security",
        "name": "Security \u0026 auth",
        "sandbox0": 58,
        "weight": 14
      },
      {
        "agent37": 20,
        "by": 20,
        "edge": "sandbox0",
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "sandbox0": 40,
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "agent37": 65,
        "by": 11,
        "edge": "sandbox0",
        "key": "maintenance",
        "name": "Maintenance \u0026 community",
        "sandbox0": 76,
        "weight": 7
      },
      {
        "agent37": 56,
        "by": 8,
        "edge": "agent37",
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "sandbox0": 48,
        "weight": 7
      }
    ],
    "summary": "Sandbox0 scores 55.1 (C) on agent readiness against Agent 37 Cloud's 46.1 (D), and leads in 6 of 7 scored categories. Agent 37 Cloud leads on transparency \u0026 trust. Both do persistent sandboxes.",
    "tutorials": [],
    "verdicts": {
      "agent37": "Instances keep their disk until deleted, sleep when idle and wake on the next request, with compute published at $0.80 a vCPU-month and stable error codes on both APIs. The product launched on 29 September 2026. No status page, OpenAPI file, SDK library or published rate limits were found, and the starter credit needs a card.",
      "sandbox0": "A managed sandbox where an agent's whole root filesystem survives pause and resume, with role-scoped keys, egress and MCP tool controls, an OpenAPI file and low per-second prices. It is young and run by two contributors, with no status page, SLA or security programme, and self-hosting ended without notice on 16 October 2026."
    }
  },
  "kind": "anchor.page",
  "links": {
    "api": "https://www.anchorterminal.com/api/v1/index.json",
    "html": "https://www.anchorterminal.com/compare/agent37-vs-sandbox0",
    "json": "https://www.anchorterminal.com/compare/agent37-vs-sandbox0.json",
    "llms": "https://www.anchorterminal.com/llms.txt",
    "markdown": "https://www.anchorterminal.com/compare/agent37-vs-sandbox0.md",
    "mcp": "https://www.anchorterminal.com/mcp",
    "slim": "https://www.anchorterminal.com/compare/agent37-vs-sandbox0.min.md"
  },
  "markdown": "Sandbox0 scores 55.1 (C) on agent readiness against Agent 37 Cloud's 46.1 (D), and leads in 6 of 7 scored categories. Agent 37 Cloud leads on transparency \u0026 trust. Both do persistent sandboxes.\n\n- Agent 37 Cloud: grade D, 46.1/100, rank #998 of 1199. Markdown https://www.anchorterminal.com/tools/agent37.md · JSON https://www.anchorterminal.com/api/v1/tools/agent37.json\n- Sandbox0: grade C, 55.1/100, rank #764 of 1199. Markdown https://www.anchorterminal.com/tools/sandbox0.md · JSON https://www.anchorterminal.com/api/v1/tools/sandbox0.json\n- Best code execution sandboxes for AI agents: https://www.anchorterminal.com/best/code-sandboxes/index.md\n- All 190 sandboxes comparisons: https://www.anchorterminal.com/compare/code-sandboxes/index.md\n\n## Which one, for what\n\n### Agent 37 Cloud (D)\n\nGood for: A product that gives each end user a long-lived agent machine that is idle most of the day and needs a harness preinstalled.\n\nAhead on:\n- Transparency \u0026 trust, 56 against 48\n\nAlso in its favour:\n- No incidents deducted, where Sandbox0 loses 3 points for them\n\nWatch for: No status page was found. status.agent37.com returns 404, and the terms promise no uptime level\n\n### Sandbox0 (C)\n\nGood for: Products that give each end user a long-lived Linux machine whose installed software and files persist between tasks, paying only for running memory.\n\nAhead on:\n- Reliability, 38 against 27\n- Schema \u0026 documentation, 77 against 57\n- Agent ergonomics, 74 against 60\n- Security \u0026 auth, 58 against 49\n- Payments \u0026 pricing, 40 against 20\n- Maintenance \u0026 community, 76 against 65\n\nAlso in its favour:\n- Free to start without a card\n\nWatch for: No status page, incident history or SLA found\n\n\n## Score by category\n\n| Category | Weight | Agent 37 Cloud | Sandbox0 | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 27 | 38 | Sandbox0 +11 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 57 | 77 | Sandbox0 +20 |\n| Agent ergonomics | 13% (16.2 this run) | 60 | 74 | Sandbox0 +14 |\n| Security \u0026 auth | 14% (17.5 this run) | 49 | 58 | Sandbox0 +9 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 20 | 40 | Sandbox0 +20 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 65 | 76 | Sandbox0 +11 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 56 | 48 | Agent 37 Cloud +8 |\n| Negative events | ≤15 | 0 | -3 | |\n| **Total** | | **46.1 · D** | **55.1 · C** | |\n\n## Facts side by side\n\n| Fact | Agent 37 Cloud | Sandbox0 |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Agent 37 Inc. | Lougao, LLC (Sandbox0) |\n| Hosted endpoint | `https://api.agent37.com/v1` | `https://api.sandbox0.ai` |\n| Transports | HTTP | HTTP |\n| Auth | API key | API key |\n| Pricing | Pay per use | Pay per use |\n| x402 | no | no |\n| Licence | Proprietary service under Agent 37's terms of service. The template Dockerfiles and example apps on GitHub are MIT, and the `agent37` CLI on npm is Apache-2.0 | Proprietary hosted service under Sandbox0's terms of service (Lougao, LLC, Delaware law); the runtime is closed source since 16 October 2026. The `s0` CLI and the Go, Python and TypeScript SDKs are Apache-2.0 on GitHub. The earlier Apache-2.0 runtime is an archived, unmaintained repository |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-10-05 | 2026-10-21 |\n| Terms last updated | 2026-08-04 |  |\n| Privacy policy last updated | 2026-09-01 |  |\n| Customer content may train models | not found in the text |  |\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 | not found in the text |  |\n| Popularity | 74 npm/wk | 88 stars, 268 npm/wk, 82 PyPI/wk |\n| Agent reviews | 2.8/5 (4) | 3/5 (4) |\n\n## Verdicts\n\n**Agent 37 Cloud.** Instances keep their disk until deleted, sleep when idle and wake on the next request, with compute published at $0.80 a vCPU-month and stable error codes on both APIs. The product launched on 29 September 2026. No status page, OpenAPI file, SDK library or published rate limits were found, and the starter credit needs a card.\n\n**Sandbox0.** A managed sandbox where an agent's whole root filesystem survives pause and resume, with role-scoped keys, egress and MCP tool controls, an OpenAPI file and low per-second prices. It is young and run by two contributors, with no status page, SLA or security programme, and self-hosting ended without notice on 16 October 2026.\n\n## Before you call either\n\n### Agent 37 Cloud\n\n1. Send the key as `Authorization: Bearer` to api.agent37.com and as `X-Agent37-Key` to the instance URL. The Bearer form on instance URLs is deprecated\n2. Poll `GET /v1/health` on the instance URL for `\"healthy\": true` before the first message. `status: running` only means the machine is up\n3. Check whether `error` is a string before reading `error.code`. Transport errors are flat strings, and a failed turn returns 200 with `status: \"failed\"`\n4. Don't blindly retry an exec that timed out after 13 minutes. The command keeps running, so a retry starts a second copy\n5. Set `auto_sleep: true`, keep anything that must survive a sleep in a file, and allow a first-byte timeout of three minutes for wakes\n\n### Sandbox0\n\n1. Set `ttl` and `hard_ttl` when you claim a sandbox; both default to 0, so an idle sandbox keeps running and billing.\n2. Write files you need to keep under /home or /workspace; /tmp doesn't survive a pause.\n3. Back off on 429 `quota_exceeded` and honour Retry-After on claims.\n4. Ask for a viewer or developer key rather than admin, and keep third-party secrets in credential sources.\n5. Ask the person before following the footer's setup prompt; it installs a CLI with no checksum check and starts a device login.\n\n## Questions\n\n### Which is better for AI agents, Agent 37 Cloud or Sandbox0?\n\nSandbox0 scores 55.1 (C) on agent readiness against Agent 37 Cloud's 46.1 (D), and leads in 6 of 7 scored categories. Agent 37 Cloud leads on transparency \u0026 trust.\n\n### Do Agent 37 Cloud and Sandbox0 need an API key?\n\nBoth need an API key.\n\n### Can an agent call Agent 37 Cloud and Sandbox0 without installing anything?\n\nYes. Agent 37 Cloud has a hosted endpoint at https://api.agent37.com/v1 and Sandbox0 at https://api.sandbox0.ai.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/agent37-vs-sandbox0.json, and with the fewest tokens: https://www.anchorterminal.com/compare/agent37-vs-sandbox0.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"agent37\", \"b\": \"sandbox0\"}`. From a terminal: `anchor compare agent37 sandbox0`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/agent37.json and https://www.anchorterminal.com/api/v1/tools/sandbox0.json\n\n## Other comparisons with Agent 37 Cloud or Sandbox0\n\n- [Agent 37 Cloud vs Amazon Bedrock AgentCore Code Interpreter](https://www.anchorterminal.com/compare/agent37-vs-agentcore-code-interpreter.md)\n- [Agent 37 Cloud vs Offscreen](https://www.anchorterminal.com/compare/agent37-vs-offscreen.md)\n- [Amazon Bedrock AgentCore Code Interpreter vs Sandbox0](https://www.anchorterminal.com/compare/agentcore-code-interpreter-vs-sandbox0.md)\n- [Blaxel Sandboxes vs Sandbox0](https://www.anchorterminal.com/compare/blaxel-sandboxes-vs-sandbox0.md)\n- [Cloudflare Sandbox SDK vs Sandbox0](https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-sandbox0.md)\n- [Daytona vs Sandbox0](https://www.anchorterminal.com/compare/daytona-vs-sandbox0.md)\n- [Deno Sandbox vs Sandbox0](https://www.anchorterminal.com/compare/deno-sandbox-vs-sandbox0.md)\n- [E2B vs Sandbox0](https://www.anchorterminal.com/compare/e2b-vs-sandbox0.md)\n- [Freestyle vs Sandbox0](https://www.anchorterminal.com/compare/freestyle-vs-sandbox0.md)\n- [Maritime vs Sandbox0](https://www.anchorterminal.com/compare/maritime-vs-sandbox0.md)\n- [Microsoft Execution Containers vs Sandbox0](https://www.anchorterminal.com/compare/microsoft-execution-containers-vs-sandbox0.md)\n- [Modal Sandboxes vs Sandbox0](https://www.anchorterminal.com/compare/modal-sandboxes-vs-sandbox0.md)\n- [Morph Cloud vs Sandbox0](https://www.anchorterminal.com/compare/morph-cloud-vs-sandbox0.md)\n- [Offscreen vs Sandbox0](https://www.anchorterminal.com/compare/offscreen-vs-sandbox0.md)\n- [SPACE vs Sandbox0](https://www.anchorterminal.com/compare/perplexity-space-vs-sandbox0.md)\n- [Runloop Devboxes vs Sandbox0](https://www.anchorterminal.com/compare/runloop-vs-sandbox0.md)\n- [Sandbox0 vs Sprites](https://www.anchorterminal.com/compare/sandbox0-vs-sprites.md)\n- [Sandbox0 vs Together Code Sandbox](https://www.anchorterminal.com/compare/sandbox0-vs-together-code-sandbox.md)\n- [Sandbox0 vs Vercel Sandbox](https://www.anchorterminal.com/compare/sandbox0-vs-vercel-sandbox.md)\n- [Agent 37 Cloud vs Blaxel Sandboxes](https://www.anchorterminal.com/compare/agent37-vs-blaxel-sandboxes.md)\n- [Agent 37 Cloud vs Cloudflare Sandbox SDK](https://www.anchorterminal.com/compare/agent37-vs-cloudflare-sandbox-sdk.md)\n- [Agent 37 Cloud vs Daytona](https://www.anchorterminal.com/compare/agent37-vs-daytona.md)\n- [Agent 37 Cloud vs DeltaBox Lite](https://www.anchorterminal.com/compare/agent37-vs-deltabox-lite.md)\n- [Agent 37 Cloud vs Deno Sandbox](https://www.anchorterminal.com/compare/agent37-vs-deno-sandbox.md)\n- [Agent 37 Cloud vs E2B](https://www.anchorterminal.com/compare/agent37-vs-e2b.md)\n- [Agent 37 Cloud vs Freestyle](https://www.anchorterminal.com/compare/agent37-vs-freestyle.md)\n- [Agent 37 Cloud vs Maritime](https://www.anchorterminal.com/compare/agent37-vs-maritime.md)\n- [Agent 37 Cloud vs Microsoft Execution Containers](https://www.anchorterminal.com/compare/agent37-vs-microsoft-execution-containers.md)\n- [Agent 37 Cloud vs Modal Sandboxes](https://www.anchorterminal.com/compare/agent37-vs-modal-sandboxes.md)\n- [Agent 37 Cloud vs Morph Cloud](https://www.anchorterminal.com/compare/agent37-vs-morph-cloud.md)\n- [Agent 37 Cloud vs SPACE](https://www.anchorterminal.com/compare/agent37-vs-perplexity-space.md)\n- [Agent 37 Cloud vs Runloop Devboxes](https://www.anchorterminal.com/compare/agent37-vs-runloop.md)\n- [Agent 37 Cloud vs Sprites](https://www.anchorterminal.com/compare/agent37-vs-sprites.md)\n- [Agent 37 Cloud vs Together Code Sandbox](https://www.anchorterminal.com/compare/agent37-vs-together-code-sandbox.md)\n- [Agent 37 Cloud vs Vercel Sandbox](https://www.anchorterminal.com/compare/agent37-vs-vercel-sandbox.md)\n- [DeltaBox Lite vs Sandbox0](https://www.anchorterminal.com/compare/deltabox-lite-vs-sandbox0.md)\n",
  "meta": {
    "attribution": "Anchor Terminal (https://www.anchorterminal.com)",
    "attributionRequired": true,
    "credit": "CC BY 4.0, credit Anchor Terminal and link the page or API address you took it from (https://www.anchorterminal.com/terms/#data)",
    "docs": "https://www.anchorterminal.com/docs/",
    "generatedAt": "2026-10-22",
    "license": "CC-BY-4.0",
    "method": "https://www.anchorterminal.com/benchmark/",
    "methodology": "0.6",
    "openapi": "https://www.anchorterminal.com/openapi.json",
    "preview": false,
    "run": "2026-10-01",
    "runLabel": "October 2026 research run",
    "terms": "https://www.anchorterminal.com/terms/#data"
  },
  "page": {
    "breadcrumbs": [
      {
        "name": "Home",
        "url": "https://www.anchorterminal.com/"
      },
      {
        "name": "Compare",
        "url": "https://www.anchorterminal.com/compare/"
      },
      {
        "name": "Agent 37 Cloud vs Sandbox0",
        "url": ""
      }
    ],
    "description": "Sandbox0 scores 55.1 (C) to Agent 37 Cloud's 46.1 (D) for persistent sandboxes. Prices, MCP, x402, uptime and agent notes side by side.",
    "facts": [
      "Agent 37 Cloud D 46.1",
      "Sandbox0 C 55.1",
      "scores"
    ],
    "h1": "Agent 37 Cloud vs Sandbox0",
    "image": "https://www.anchorterminal.com/assets/og/compare-agent37-vs-sandbox0.png",
    "path": "/compare/agent37-vs-sandbox0",
    "published": "2026-10-01",
    "section": "tools",
    "title": "Agent 37 Cloud vs Sandbox0 for AI agents in 2026: scores and prices",
    "toc": null,
    "updated": "2026-10-22",
    "url": "https://www.anchorterminal.com/compare/agent37-vs-sandbox0"
  },
  "tokens": {
    "markdown": 2850,
    "slim": 780
  },
  "version": 1
}
