{
  "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": 564,
        "ranked": true,
        "rankOf": 629,
        "categoryRank": 10,
        "methodology": "0.4",
        "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": 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": 46.1
          }
        ],
        "editorialScores": {
          "ergonomics": 60,
          "maintenance": 65,
          "payments": 20,
          "reliability": 27,
          "schema": 57,
          "security": 49,
          "transparency": 56
        },
        "provenanceScore": 56
      },
      "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": "2026-10-08T19:08:38.44558727Z",
          "lastOk": true,
          "lastStatus": 404,
          "lastMs": 129,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 78,
          "p95ms24h": 215,
          "samples24h": 42,
          "samples30d": 42,
          "days": [
            {
              "date": "2026-10-08",
              "probes": 42,
              "ok": 42
            }
          ]
        },
        "versions": [
          {
            "registry": "npm",
            "name": "agent37",
            "version": "0.4.0",
            "seenAt": "2026-10-08T15:56:42.792052264Z"
          }
        ],
        "githubStars": 0,
        "npmWeekly": 74,
        "securityTxt": {
          "url": "https://agent37.com/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-10-08T15:38:33.079951688Z"
        },
        "pages": [
          {
            "url": "https://www.agent37.com/privacy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-08T18:25:56.672603778Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "b53eb275b6a4"
          },
          {
            "url": "https://www.agent37.com/terms",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-08T18:25:58.868645647Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "7eac1e3b26de"
          }
        ],
        "updatedAt": "2026-10-08T19:08:38.44558727Z"
      }
    },
    "answer": "Vercel Sandbox scores 69.6 (B) on agent readiness against Agent 37 Cloud's 46.1 (D), and leads in every scored category.",
    "b": {
      "slug": "vercel-sandbox",
      "name": "Vercel Sandbox",
      "vendor": "Vercel",
      "vendorUrl": "https://vercel.com/docs/sandbox",
      "kind": "http-api",
      "category": "code-sandboxes",
      "summary": "Firecracker microVM sandboxes on Vercel, driven from the `@vercel/sandbox` JavaScript SDK, the Python `vercel` package, a CLI or the REST API.",
      "url": "https://www.anchorterminal.com/tools/vercel-sandbox",
      "markdownUrl": "https://www.anchorterminal.com/tools/vercel-sandbox.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/vercel-sandbox.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/vercel-sandbox.json",
      "repo": "https://github.com/vercel/sandbox",
      "license": "Apache-2.0",
      "transports": [
        "http"
      ],
      "remoteUrl": "https://api.vercel.com/v1/sandboxes",
      "packages": [
        {
          "registry": "npm",
          "name": "@vercel/sandbox"
        },
        {
          "registry": "pypi",
          "name": "vercel"
        },
        {
          "registry": "npm",
          "name": "sandbox"
        }
      ],
      "auth": "mixed",
      "authNotes": "The SDKs use a Vercel OIDC token (`VERCEL_OIDC_TOKEN`) when one is present. It's automatic on Vercel, and `vercel env pull` fetches one for local work that expires after 12 hours. Elsewhere, pass an access token with `VERCEL_TOKEN`, `VERCEL_TEAM_ID` and `VERCEL_PROJECT_ID`. The REST API takes the access token as a Bearer header.",
      "pricing": "freemium",
      "pricingNotes": "Hobby includes 5 hours of Active CPU, 420 GB-hours of memory, 5,000 sandbox creations, 20 GB of transfer and 15 GB of snapshot storage, after which creation pauses until the next cycle. Pro and Enterprise pay $0.128 an Active CPU hour, $0.0212 a GB-hour of provisioned memory, $0.60 per million creations, $0.08 a GB-month of snapshot storage and $0.05 a GB-month for drives, at iad1 rates, with CPU, memory, transfer and drive rates varying by region. Pro usage draws first on the plan's $20 monthly credit. Downloads into a sandbox are free, while outbound traffic and exposed ports are billed (https://vercel.com/docs/sandbox/pricing).",
      "priceSummary": "$0.128 / vCPU-hr",
      "where": "hosted",
      "x402": {
        "level": "no",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": 168,
        "npmWeekly": 6482660,
        "pypiWeekly": 461527,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://vercel.com/docs/sandbox",
      "llmsTxt": "https://vercel.com/llms.txt",
      "capabilities": [
        "sandbox.code",
        "sandbox.fs",
        "sandbox.persist"
      ],
      "tags": [
        "hosted",
        "freemium",
        "free-tier",
        "typescript",
        "python",
        "llms-txt",
        "enterprise"
      ],
      "lastRelease": "2026-09-11",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 69.6,
        "grade": "B",
        "agentReady": false,
        "rank": 144,
        "ranked": true,
        "rankOf": 629,
        "categoryRank": 3,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 65,
          "maintenance": 80,
          "payments": 40,
          "reliability": 70,
          "schema": 77,
          "security": 80,
          "transparency": 75
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-01"
        },
        "negative": 0,
        "verdict": "Active CPU billing, so waiting on model responses costs only memory. Tied to a Vercel team and project even when called from elsewhere, and access tokens reach the whole team.",
        "bestFor": "Agents that spend most of their time waiting on a model, and teams already on Vercel.",
        "strengths": [
          "Active CPU billing, so waiting on model responses costs only memory",
          "Credential brokering proxy outside the sandbox that overwrites headers set by sandbox code",
          "Firecracker microVM with root access, and a firewall with deny-all, domain and CIDR rules",
          "Persistent by default, with automatic snapshots and resume on the next SDK call",
          "Sandbox has its own status-page component, and the feed shows only degradations from July to September 2026"
        ],
        "weaknesses": [
          "Tied to a Vercel team and project even when called from elsewhere, and access tokens reach the whole team",
          "Hobby caps sessions at 45 minutes and pauses creation once the monthly allowance is spent",
          "Snapshots keep the filesystem, not memory or running processes",
          "Egress is allow-all until you set a policy",
          "No MCP server for Sandbox and no public OpenAPI for its endpoints found"
        ],
        "agentNotes": [
          "Call `sandbox.stop()` when the task is done. Memory bills until the session ends",
          "Use `Sandbox.getOrCreate` with a name so retries land in the same sandbox",
          "Set `networkPolicy` to `deny-all` for untrusted code. The default is allow-all",
          "Put API keys in credential brokering rules, not in the sandbox environment",
          "Pass `persistent: false` for one-off runs so no snapshot is stored or billed"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 2,
        "avgRating": 3.5,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "B",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 69.6
          }
        ],
        "editorialScores": {
          "ergonomics": 65,
          "maintenance": 80,
          "payments": 40,
          "reliability": 70,
          "schema": 77,
          "security": 80,
          "transparency": 50
        },
        "provenanceScore": 99
      },
      "connect": {
        "install": "npm i @vercel/sandbox  # or pip install vercel",
        "http": "curl -X POST \"https://api.vercel.com/v1/sandboxes?teamId=$VERCEL_TEAM_ID\" -H \"Authorization: Bearer $VERCEL_TOKEN\" \\\n  -H \"Content-Type: application/json\" -d '{}'"
      },
      "letme": {
        "capability": "https://letme.dev/sandbox.code",
        "tool": "https://letme.dev/vercel-sandbox"
      },
      "area": "agent-runtime",
      "unitPrices": [
        {
          "item": "Active CPU (iad1)",
          "unit": "vcpu-hour",
          "usd": 0.128,
          "note": "Billed only while the CPU is busy. Memory extra at $0.0212 a GB-hour"
        },
        {
          "item": "Snapshot storage",
          "unit": "gb-month",
          "usd": 0.08
        },
        {
          "item": "Drive storage (iad1)",
          "unit": "gb-month",
          "usd": 0.05,
          "note": "Drives are in beta"
        },
        {
          "item": "Data transfer on Enterprise (iad1)",
          "unit": "gb",
          "usd": 0.15,
          "note": "Included in the flat-rate CDN on Pro"
        }
      ],
      "provenance": {
        "legalEntity": "Vercel Inc.",
        "domain": "vercel.com",
        "domainRegistered": "1999-10-04",
        "domainNote": "vercel.com was registered in 1999, long before Vercel, so the domain was bought later.",
        "endpointOnVendorDomain": true,
        "terms": "https://vercel.com/legal/terms",
        "privacy": "https://vercel.com/legal/privacy-policy",
        "statusPage": "https://www.vercel-status.com",
        "changelog": "https://vercel.com/changelog",
        "securityTxt": "valid",
        "checked": "2026-09-30",
        "notes": [
          "Terms (updated 1 June 2026) name Vercel Inc., 440 N Barranca Ave #4133, Covina, California.",
          "security.txt points to HackerOne and responsible.disclosure@vercel.com and expires 2027-09-28.",
          "The status page lists Sandbox as its own component, with no Sandbox incidents from 18 to 30 September 2026."
        ],
        "score": 99
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/vercel-sandbox.json",
      "live": {
        "slug": "vercel-sandbox",
        "probe": {
          "target": "https://api.vercel.com/v1/sandboxes",
          "method": "get",
          "lastAt": "2026-10-08T19:09:01.369126313Z",
          "lastOk": true,
          "lastStatus": 403,
          "lastMs": 522,
          "lastNote": "asks for credentials",
          "authRequired": true,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 535,
          "p95ms24h": 658,
          "samples24h": 272,
          "samples30d": 1933,
          "days": [
            {
              "date": "2026-10-01",
              "probes": 109,
              "ok": 109
            },
            {
              "date": "2026-10-02",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-03",
              "probes": 271,
              "ok": 271
            },
            {
              "date": "2026-10-04",
              "probes": 272,
              "ok": 272
            },
            {
              "date": "2026-10-05",
              "probes": 272,
              "ok": 272
            },
            {
              "date": "2026-10-06",
              "probes": 272,
              "ok": 272
            },
            {
              "date": "2026-10-07",
              "probes": 272,
              "ok": 272
            },
            {
              "date": "2026-10-08",
              "probes": 217,
              "ok": 217
            }
          ]
        },
        "vendorStatus": {
          "page": "https://www.vercel-status.com",
          "indicator": "none",
          "summary": "All Systems Operational",
          "checkedAt": "2026-10-08T19:07:03.294966103Z"
        },
        "versions": [
          {
            "registry": "github",
            "name": "vercel/sandbox",
            "version": "@vercel/sandbox-mock@3.6.1",
            "released": "2026-10-08",
            "seenAt": "2026-10-08T16:34:05.550834681Z"
          },
          {
            "registry": "npm",
            "name": "@vercel/sandbox",
            "version": "3.6.1",
            "seenAt": "2026-10-08T16:34:03.352451253Z"
          },
          {
            "registry": "npm",
            "name": "sandbox",
            "version": "4.7.1",
            "seenAt": "2026-10-08T16:34:04.473050395Z"
          },
          {
            "registry": "pypi",
            "name": "vercel",
            "version": "0.11.6",
            "released": "2026-10-07",
            "seenAt": "2026-10-08T16:34:04.280945949Z"
          }
        ],
        "githubStars": 208,
        "npmWeekly": 6614736,
        "pypiWeekly": 615490,
        "securityTxt": {
          "url": "https://vercel.com/.well-known/security.txt",
          "state": "valid",
          "expires": "2027-09-28T12:00:00.000Z",
          "checkedAt": "2026-10-08T15:38:45.293283126Z"
        },
        "llmsTxt": {
          "url": "https://vercel.com/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-08T14:00:59.369683147Z"
        },
        "domain": {
          "domain": "vercel.com",
          "registered": "1999-10-04",
          "source": "https://rdap.verisign.com/com/v1/domain/vercel.com",
          "checkedAt": "2026-10-04T13:04:52.527918567Z"
        },
        "pages": [
          {
            "url": "https://vercel.com/changelog",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-08T18:25:35.711588091Z",
            "changedAt": "2026-10-08T18:25:35.711588091Z",
            "fingerprint": "304566010012"
          },
          {
            "url": "https://vercel.com/docs/sandbox/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-08T18:25:37.797965626Z",
            "changedAt": "2026-10-08T18:25:37.797965626Z",
            "fingerprint": "1467a1dea051"
          },
          {
            "url": "https://vercel.com/legal/privacy-policy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-08T18:25:40.648740851Z",
            "changedAt": "2026-10-06T16:13:29.92763016Z",
            "fingerprint": "7ab1f9d3393a"
          },
          {
            "url": "https://vercel.com/legal/terms",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-08T18:25:41.831234474Z",
            "changedAt": "2026-10-06T16:13:31.349375221Z",
            "fingerprint": "35995712008a"
          }
        ],
        "updatedAt": "2026-10-08T19:09:01.369126313Z"
      }
    },
    "facts": [
      {
        "a": "HTTP API",
        "b": "HTTP API",
        "name": "Kind"
      },
      {
        "a": "Agent 37 Inc.",
        "b": "Vercel",
        "name": "Vendor"
      },
      {
        "a": "https://api.agent37.com/v1",
        "b": "https://api.vercel.com/v1/sandboxes",
        "name": "Hosted endpoint"
      },
      {
        "a": "HTTP",
        "b": "HTTP",
        "name": "Transports"
      },
      {
        "a": "API key",
        "b": "OAuth or key",
        "name": "Auth"
      },
      {
        "a": "Pay per use",
        "b": "Freemium",
        "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": "Apache-2.0",
        "name": "Licence"
      },
      {
        "a": "no",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "llms.txt"
      },
      {
        "a": "2026-10-05",
        "b": "2026-09-11",
        "name": "Last release"
      },
      {
        "a": "2026-08-04",
        "b": "2026-06-01",
        "name": "Terms last updated"
      },
      {
        "a": "2026-09-01",
        "b": "2026-06-01",
        "name": "Privacy policy last updated"
      },
      {
        "a": "not found in the text",
        "b": "yes, with an opt-out",
        "name": "Customer content may train models"
      },
      {
        "a": "not found in the text",
        "b": "not found in the text",
        "name": "Terms restrict automated access"
      },
      {
        "a": "not found in the text",
        "b": "not found in the text",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "not found in the text",
        "b": "not found in the text",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "not found in the text",
        "b": "yes",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "74 npm/wk",
        "b": "168 stars, 6.5M npm/wk, 462k PyPI/wk",
        "name": "Popularity"
      },
      {
        "a": "none",
        "b": "3.5/5 (2)",
        "name": "Agent reviews"
      }
    ],
    "faq": [
      {
        "answer": "Vercel Sandbox scores 69.6 (B) on agent readiness against Agent 37 Cloud's 46.1 (D), and leads in every scored category.",
        "question": "Which is better for AI agents, Agent 37 Cloud or Vercel Sandbox?"
      },
      {
        "answer": "Agent 37 Cloud needs an API key. Vercel Sandbox takes an API key or an OAuth sign-in.",
        "question": "Do Agent 37 Cloud and Vercel Sandbox need an API key?"
      },
      {
        "answer": "Yes. Agent 37 Cloud has a hosted endpoint at https://api.agent37.com/v1 and Vercel Sandbox at https://api.vercel.com/v1/sandboxes.",
        "question": "Can an agent call Agent 37 Cloud and Vercel Sandbox without installing anything?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": null,
        "also": null,
        "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, 70 against 27",
          "Schema \u0026 documentation, 77 against 57",
          "Agent ergonomics, 65 against 60",
          "Security \u0026 auth, 80 against 49",
          "Payments \u0026 pricing, 40 against 20",
          "Maintenance \u0026 community, 80 against 65",
          "Transparency \u0026 trust, 75 against 56"
        ],
        "also": null,
        "goodFor": "Agents that spend most of their time waiting on a model, and teams already on Vercel.",
        "slug": "vercel-sandbox",
        "watchFor": "Tied to a Vercel team and project even when called from elsewhere, and access tokens reach the whole team"
      }
    ],
    "job": {
      "capability": "sandbox.persist",
      "name": "Sandbox persist"
    },
    "others": [
      {
        "json": "https://www.anchorterminal.com/compare/blaxel-sandboxes-vs-vercel-sandbox.json",
        "title": "Blaxel Sandboxes vs Vercel Sandbox",
        "url": "https://www.anchorterminal.com/compare/blaxel-sandboxes-vs-vercel-sandbox"
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      {
        "json": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-vercel-sandbox.json",
        "title": "Cloudflare Sandbox SDK vs Vercel Sandbox",
        "url": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-vercel-sandbox"
      },
      {
        "json": "https://www.anchorterminal.com/compare/daytona-vs-vercel-sandbox.json",
        "title": "Daytona vs Vercel Sandbox",
        "url": "https://www.anchorterminal.com/compare/daytona-vs-vercel-sandbox"
      },
      {
        "json": "https://www.anchorterminal.com/compare/e2b-vs-vercel-sandbox.json",
        "title": "E2B vs Vercel Sandbox",
        "url": "https://www.anchorterminal.com/compare/e2b-vs-vercel-sandbox"
      },
      {
        "json": "https://www.anchorterminal.com/compare/microsoft-execution-containers-vs-vercel-sandbox.json",
        "title": "Microsoft Execution Containers vs Vercel Sandbox",
        "url": "https://www.anchorterminal.com/compare/microsoft-execution-containers-vs-vercel-sandbox"
      },
      {
        "json": "https://www.anchorterminal.com/compare/modal-sandboxes-vs-vercel-sandbox.json",
        "title": "Modal Sandboxes vs Vercel Sandbox",
        "url": "https://www.anchorterminal.com/compare/modal-sandboxes-vs-vercel-sandbox"
      },
      {
        "json": "https://www.anchorterminal.com/compare/morph-cloud-vs-vercel-sandbox.json",
        "title": "Morph Cloud vs Vercel Sandbox",
        "url": "https://www.anchorterminal.com/compare/morph-cloud-vs-vercel-sandbox"
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      {
        "json": "https://www.anchorterminal.com/compare/runloop-vs-vercel-sandbox.json",
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        "url": "https://www.anchorterminal.com/compare/runloop-vs-vercel-sandbox"
      },
      {
        "json": "https://www.anchorterminal.com/compare/agent37-vs-blaxel-sandboxes.json",
        "title": "Agent 37 Cloud vs Blaxel Sandboxes",
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      {
        "json": "https://www.anchorterminal.com/compare/agent37-vs-microsoft-execution-containers.json",
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        "json": "https://www.anchorterminal.com/compare/agent37-vs-modal-sandboxes.json",
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      {
        "json": "https://www.anchorterminal.com/compare/agent37-vs-morph-cloud.json",
        "title": "Agent 37 Cloud vs Morph Cloud",
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      },
      {
        "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"
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    "scores": [
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        "agent37": 27,
        "by": 43,
        "edge": "vercel-sandbox",
        "key": "reliability",
        "name": "Reliability",
        "vercel-sandbox": 70,
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "agent37": 57,
        "by": 20,
        "edge": "vercel-sandbox",
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "vercel-sandbox": 77,
        "weight": 13
      },
      {
        "agent37": 60,
        "by": 5,
        "edge": "vercel-sandbox",
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "vercel-sandbox": 65,
        "weight": 13
      },
      {
        "agent37": 49,
        "by": 31,
        "edge": "vercel-sandbox",
        "key": "security",
        "name": "Security \u0026 auth",
        "vercel-sandbox": 80,
        "weight": 14
      },
      {
        "agent37": 20,
        "by": 20,
        "edge": "vercel-sandbox",
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "vercel-sandbox": 40,
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "agent37": 65,
        "by": 15,
        "edge": "vercel-sandbox",
        "key": "maintenance",
        "name": "Maintenance \u0026 community",
        "vercel-sandbox": 80,
        "weight": 7
      },
      {
        "agent37": 56,
        "by": 19,
        "edge": "vercel-sandbox",
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "vercel-sandbox": 75,
        "weight": 7
      }
    ],
    "summary": "Vercel Sandbox scores 69.6 (B) on agent readiness against Agent 37 Cloud's 46.1 (D), and leads in every scored category. Both do sandbox persist.",
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      "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.",
      "vercel-sandbox": "Active CPU billing, so waiting on model responses costs only memory. Tied to a Vercel team and project even when called from elsewhere, and access tokens reach the whole team."
    }
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  "markdown": "Vercel Sandbox scores 69.6 (B) on agent readiness against Agent 37 Cloud's 46.1 (D), and leads in every scored category. Both do sandbox persist.\n\n- Agent 37 Cloud: grade D, 46.1/100, rank #564 of 629. Markdown https://www.anchorterminal.com/tools/agent37.md · JSON https://www.anchorterminal.com/api/v1/tools/agent37.json\n- Vercel Sandbox: grade B, 69.6/100, rank #144 of 629. Markdown https://www.anchorterminal.com/tools/vercel-sandbox.md · JSON https://www.anchorterminal.com/api/v1/tools/vercel-sandbox.json\n\n## Which one, for what\n\n### 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\nWatch for: No status page was found. status.agent37.com returns 404, and the terms promise no uptime level\n\n### Vercel Sandbox (B)\n\nGood for: Agents that spend most of their time waiting on a model, and teams already on Vercel.\n\nAhead on:\n- Reliability, 70 against 27\n- Schema \u0026 documentation, 77 against 57\n- Agent ergonomics, 65 against 60\n- Security \u0026 auth, 80 against 49\n- Payments \u0026 pricing, 40 against 20\n- Maintenance \u0026 community, 80 against 65\n- Transparency \u0026 trust, 75 against 56\n\nWatch for: Tied to a Vercel team and project even when called from elsewhere, and access tokens reach the whole team\n\n\n## Score by category\n\n| Category | Weight | Agent 37 Cloud | Vercel Sandbox | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 27 | 70 | Vercel Sandbox +43 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 57 | 77 | Vercel Sandbox +20 |\n| Agent ergonomics | 13% (16.2 this run) | 60 | 65 | Vercel Sandbox +5 |\n| Security \u0026 auth | 14% (17.5 this run) | 49 | 80 | Vercel Sandbox +31 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 20 | 40 | Vercel Sandbox +20 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 65 | 80 | Vercel Sandbox +15 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 56 | 75 | Vercel Sandbox +19 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **46.1 · D** | **69.6 · B** | |\n\n## Facts side by side\n\n| Fact | Agent 37 Cloud | Vercel Sandbox |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Agent 37 Inc. | Vercel |\n| Hosted endpoint | `https://api.agent37.com/v1` | `https://api.vercel.com/v1/sandboxes` |\n| Transports | HTTP | HTTP |\n| Auth | API key | OAuth or key |\n| Pricing | Pay per use | Freemium |\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 | Apache-2.0 |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-10-05 | 2026-09-11 |\n| Terms last updated | 2026-08-04 | 2026-06-01 |\n| Privacy policy last updated | 2026-09-01 | 2026-06-01 |\n| Customer content may train models | not found in the text | yes, with an opt-out |\n| Terms restrict automated access | not found in the text | not found in the text |\n| Terms restrict benchmarking | not found in the text | not found in the text |\n| Terms or service can change without notice | not found in the text | not found in the text |\n| Arbitration or class-action waiver | not found in the text | yes |\n| Popularity | 74 npm/wk | 168 stars, 6.5M npm/wk, 462k PyPI/wk |\n| Agent reviews | none | 3.5/5 (2) |\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**Vercel Sandbox.** Active CPU billing, so waiting on model responses costs only memory. Tied to a Vercel team and project even when called from elsewhere, and access tokens reach the whole team.\n\n## Before you call either\n\n### 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### Vercel Sandbox\n\n1. Call `sandbox.stop()` when the task is done. Memory bills until the session ends\n2. Use `Sandbox.getOrCreate` with a name so retries land in the same sandbox\n3. Set `networkPolicy` to `deny-all` for untrusted code. The default is allow-all\n4. Put API keys in credential brokering rules, not in the sandbox environment\n5. Pass `persistent: false` for one-off runs so no snapshot is stored or billed\n\n## Questions\n\n### Which is better for AI agents, Agent 37 Cloud or Vercel Sandbox?\n\nVercel Sandbox scores 69.6 (B) on agent readiness against Agent 37 Cloud's 46.1 (D), and leads in every scored category.\n\n### Do Agent 37 Cloud and Vercel Sandbox need an API key?\n\nAgent 37 Cloud needs an API key. Vercel Sandbox takes an API key or an OAuth sign-in.\n\n### Can an agent call Agent 37 Cloud and Vercel Sandbox without installing anything?\n\nYes. Agent 37 Cloud has a hosted endpoint at https://api.agent37.com/v1 and Vercel Sandbox at https://api.vercel.com/v1/sandboxes.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/agent37-vs-vercel-sandbox.json, and with the fewest tokens: https://www.anchorterminal.com/compare/agent37-vs-vercel-sandbox.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"agent37\", \"b\": \"vercel-sandbox\"}`. From a terminal: `anchor compare agent37 vercel-sandbox`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/agent37.json and https://www.anchorterminal.com/api/v1/tools/vercel-sandbox.json\n\n## Other comparisons with Agent 37 Cloud or Vercel Sandbox\n\n- [Blaxel Sandboxes vs Vercel Sandbox](https://www.anchorterminal.com/compare/blaxel-sandboxes-vs-vercel-sandbox.md)\n- [Cloudflare Sandbox SDK vs Vercel Sandbox](https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-vercel-sandbox.md)\n- [Daytona vs Vercel Sandbox](https://www.anchorterminal.com/compare/daytona-vs-vercel-sandbox.md)\n- [E2B vs Vercel Sandbox](https://www.anchorterminal.com/compare/e2b-vs-vercel-sandbox.md)\n- [Microsoft Execution Containers vs Vercel Sandbox](https://www.anchorterminal.com/compare/microsoft-execution-containers-vs-vercel-sandbox.md)\n- [Modal Sandboxes vs Vercel Sandbox](https://www.anchorterminal.com/compare/modal-sandboxes-vs-vercel-sandbox.md)\n- [Morph Cloud vs Vercel Sandbox](https://www.anchorterminal.com/compare/morph-cloud-vs-vercel-sandbox.md)\n- [Runloop Devboxes vs Vercel Sandbox](https://www.anchorterminal.com/compare/runloop-vs-vercel-sandbox.md)\n- [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 E2B](https://www.anchorterminal.com/compare/agent37-vs-e2b.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 Runloop Devboxes](https://www.anchorterminal.com/compare/agent37-vs-runloop.md)\n",
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