{ "data": { "a": { "slug": "cloudflare-sandbox-sdk", "name": "Cloudflare Sandbox SDK", "vendor": "Cloudflare", "vendorUrl": "https://developers.cloudflare.com/sandbox/", "kind": "sdk", "category": "code-sandboxes", "summary": "TypeScript library for running sandboxed Linux containers from a Cloudflare Worker.", "url": "https://www.anchorterminal.com/tools/cloudflare-sandbox-sdk", "markdownUrl": "https://www.anchorterminal.com/tools/cloudflare-sandbox-sdk.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/cloudflare-sandbox-sdk.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/cloudflare-sandbox-sdk.json", "repo": "https://github.com/cloudflare/sandbox-sdk", "license": "Apache-2.0", "transports": [], "packages": [ { "registry": "npm", "name": "@cloudflare/sandbox" } ], "auth": "none", "authNotes": "There's no hosted API. The sandbox sits behind a Worker you deploy, so it has whatever auth you put in front of it, and the starter template has none. Deploying needs a Cloudflare account through Wrangler. Version 1.0 adds preview ports with custom hostnames and authentication.", "pricing": "paid", "pricingNotes": "Needs the Workers Paid plan, $5 a month minimum (https://developers.cloudflare.com/workers/platform/pricing/). Billed as Containers plus Workers and Durable Objects. Containers include 25 GiB-hours of memory, 375 vCPU-minutes and 200 GB-hours of disk a month, then $0.0000025 a GiB-second of memory, $0.000020 a vCPU-second of CPU used and $0.00000007 a GB-second of disk, in 10 ms steps while the container runs. Egress is $0.025 a GB in North America and Europe after 1 TB (https://developers.cloudflare.com/containers/pricing/). Durable Objects add $0.15 per million requests and $12.50 per million GB-seconds after the included amounts (https://developers.cloudflare.com/workers/platform/pricing/).", "priceSummary": "$0.072 / vCPU-hr", "where": "local", "x402": { "level": "no", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": 1100, "npmWeekly": 722733, "pypiWeekly": null, "asOf": "2026-09-30" }, "docsUrl": "https://developers.cloudflare.com/sandbox/", "llmsTxt": "https://developers.cloudflare.com/sandbox/llms.txt", "capabilities": [ "sandbox.code", "sandbox.fs", "sandbox.persist" ], "tags": [ "hosted", "typescript", "open-source", "llms-txt" ], "lastRelease": "2026-09-30", "graded": true, "anchor": { "graded": true, "score": 67.5, "grade": "B", "agentReady": false, "rank": 231, "ranked": true, "rankOf": 842, "categoryRank": 6, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 63, "maintenance": 70, "payments": 30, "reliability": 87, "schema": 77, "security": 65, "transparency": 70 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": 0, "verdict": "Each sandbox runs in its own VM with a separate filesystem, process space and network stack. No hosted API. You deploy and secure a Worker before an agent can call anything, and the starter has no auth.", "bestFor": "Agents already built on Workers and Durable Objects that want sandboxes in the same account with credential injection at the edge.", "strengths": [ "Each sandbox runs in its own VM with a separate filesystem, process space and network stack", "Outbound handlers hold credentials in the Worker and inject them, so the container never sees them", "Egress can be turned off or limited to a deny-by-default `allowedHosts` list", "CPU billed on use at $0.000020 a vCPU-second, with a monthly allowance on Workers Paid", "Apache-2.0, with CodeQL and passing CI on main" ], "weaknesses": [ "No hosted API. You deploy and secure a Worker before an agent can call anything, and the starter has no auth", "Open bugs on backups that drop directories (#859) and restores of archives of 10 MB or more (#884)", "Needs Workers Paid at $5 a month, with no card-free route", "TypeScript only", "Two models to learn while 0.x and 1.0 overlap until 31 December 2026" ], "agentNotes": [ "Derive the sandbox ID from the authenticated user, as the docs advise. IDs aren't secrets", "Put API keys in an outbound handler in the Worker, not in the container's environment", "Set `enableInternet = false` or an `allowedHosts` list before running untrusted code. Internet access is on by default", "Check that a restored backup has every directory you expect. Backups of 10 MB or more have open bugs", "Start new projects on 1.0. The 0.x library only gets fixes until 31 December 2026" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 3, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 67.5 } ], "editorialScores": { "ergonomics": 63, "maintenance": 70, "payments": 30, "reliability": 87, "schema": 77, "security": 65, "transparency": 45 }, "provenanceScore": 94 }, "connect": { "install": "npm create cloudflare@latest -- my-sandbox --template=cloudflare/sandbox-sdk/examples/minimal" }, "letme": { "capability": "https://letme.dev/sandbox.code", "tool": "https://letme.dev/cloudflare-sandbox-sdk" }, "sameCompany": [ "cloudflare-web-search", "cloudflare-mcp", "cloudflare-email-service", "cloudflare-r2", "cloudflare-clef" ], "area": "agent-runtime", "unitPrices": [ { "item": "Container CPU", "unit": "vcpu-hour", "usd": 0.072, "note": "$0.000020 a vCPU-second of CPU used, after 375 vCPU-minutes a month" }, { "item": "Workers Paid plan", "unit": "month", "usd": 5, "note": "Minimum charge" }, { "item": "Egress, North America and Europe", "unit": "gb", "usd": 0.025, "note": "After 1 TB a month" } ], "provenance": { "legalEntity": "Cloudflare, Inc.", "domain": "cloudflare.com", "domainRegistered": "2009-02-17", "endpointOnVendorDomain": null, "terms": "https://www.cloudflare.com/terms/", "privacy": "https://www.cloudflare.com/privacypolicy/", "statusPage": "https://www.cloudflarestatus.com", "changelog": "https://developers.cloudflare.com/changelog/?product=sandbox", "securityTxt": "valid", "checked": "2026-10-01", "notes": [ "The self-serve subscription agreement (updated 12 September 2025) names Cloudflare, Inc., 101 Townsend St., San Francisco.", "There's no vendor endpoint to check. Sandboxes are reached through a Worker on your own route or workers.dev subdomain.", "security.txt lists HackerOne and a disclosure policy, but we didn't see an Expires field.", "The GitHub README still says the SDK is in active development and APIs may change before v1.0, while npm has 1.0.0 (published 2026-09-30) and the changelog announces 1.0. The GitHub releases page showed 0.12.4 (21 July 2026) as its newest release when checked." ], "score": 94 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/cloudflare-sandbox-sdk.json", "live": { "slug": "cloudflare-sandbox-sdk", "vendorStatus": { "page": "https://www.cloudflarestatus.com", "indicator": "major", "summary": "Partial System Outage", "checkedAt": "2026-10-09T10:41:29.713688294Z" }, "versions": [ { "registry": "github", "name": "cloudflare/sandbox-sdk", "version": "@cloudflare/sandbox@1.0.0", "released": "2026-10-08", "seenAt": "2026-10-08T16:05:58.738938125Z" }, { "registry": "npm", "name": "@cloudflare/sandbox", "version": "1.0.0", "seenAt": "2026-10-08T16:05:55.495012518Z" } ], "githubStars": 1147, "npmWeekly": 801244, "securityTxt": { "url": "https://cloudflare.com/.well-known/security.txt", "state": "valid", "checkedAt": "2026-10-08T15:39:03.720889469Z" }, "llmsTxt": { "url": "https://developers.cloudflare.com/sandbox/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-08T14:00:17.587280212Z" }, "domain": { "domain": "cloudflare.com", "registered": "2009-02-17", "source": "https://rdap.verisign.com/com/v1/domain/cloudflare.com", "checkedAt": "2026-10-04T13:06:22.743038628Z" }, "pages": [ { "url": "https://developers.cloudflare.com/changelog/?product=sandbox", "kind": "deprecations", "status": 200, "checkedAt": "2026-10-08T18:17:34.044619169Z", "changedAt": "2026-10-08T18:17:34.044619169Z", "fingerprint": "cd28bcd1f0d9" }, { "url": "https://developers.cloudflare.com/containers/pricing/", "kind": "pricing", "status": 200, "checkedAt": "2026-10-08T18:17:38.095408277Z", "changedAt": "2026-10-06T16:07:26.756927967Z", "fingerprint": "f742d2e03f78" }, { "url": "https://developers.cloudflare.com/workers/platform/pricing/", "kind": "pricing", "status": 200, "checkedAt": "2026-10-08T18:17:46.027175456Z", "changedAt": "2026-10-08T18:17:46.027175456Z", "fingerprint": "209295c7da6d" } ], "updatedAt": "2026-10-09T10:41:29.713688294Z" } }, "answer": "Cloudflare Sandbox SDK scores 67.5 (B) on agent readiness against Together Code Sandbox's 53.6 (D), and leads in 4 of 7 scored categories. Together Code Sandbox leads on schema \u0026 documentation, agent ergonomics and maintenance \u0026 community.", "b": { "slug": "together-code-sandbox", "name": "Together Code Sandbox", "vendor": "Together AI", "vendorUrl": "https://www.together.ai", "kind": "http-api", "category": "code-sandboxes", "summary": "Together AI's hosted virtual machine sandboxes for running commands and code, built from Docker-image snapshots and driven from the `together-sandbox` Python SDK, TypeScript SDK or CLI. Access is by allowlist, on request to Together.", "url": "https://www.anchorterminal.com/tools/together-code-sandbox", "markdownUrl": "https://www.anchorterminal.com/tools/together-code-sandbox.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/together-code-sandbox.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/together-code-sandbox.json", "repo": "https://github.com/togethercomputer/together-sandbox", "license": "Proprietary service under Together's terms of service. The SDKs, CLI and OpenAPI documents on GitHub are MIT", "transports": [ "http" ], "remoteUrl": "https://api.bartender.codesandbox.io", "packages": [ { "registry": "pypi", "name": "together-sandbox" }, { "registry": "npm", "name": "together-sandbox" } ], "auth": "api-key", "authNotes": "Access is by allowlist. The docs say the `together-sandbox` SDK and CLI must be enabled for an organisation and to contact Together to request it. Once enabled, a project-scoped Together API key is sent as a Bearer token, read from `TOGETHER_API_KEY`. Keys are revocable, can carry an expiry date and have no finer scopes. Each running sandbox also has its own agent token for the in-VM API, which the SDKs handle.", "pricing": "usage", "pricingNotes": "The pricing page lists Code Sandbox compute at $0.0446 per vCPU-hour and $0.0149 per GiB of RAM per hour, and does not say whether that rate covers the new SDK as well as the legacy one. No free tier or sandbox lets an agent start without a contract. Together has no free trial, platform access needs a $15 first credit purchase, and the organisation must then be enabled on request (https://www.together.ai/pricing, https://docs.together.ai/docs/billing-credits).", "priceSummary": "$0.0446 / vCPU-hr", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the docs page, the repository or the pricing page (checked 2026-10-08).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": 3, "npmWeekly": 1298, "pypiWeekly": 3387, "asOf": "2026-10-08" }, "docsUrl": "https://docs.together.ai/docs/together-code-sandbox", "llmsTxt": "https://docs.together.ai/llms.txt", "openapi": "https://togethercomputer.github.io/together-sandbox/api-openapi.json", "capabilities": [ "sandbox.code", "sandbox.fs", "sandbox.persist" ], "tags": [ "hosted", "usage", "allowlist", "sales-led", "openapi", "llms-txt", "python", "typescript", "cli", "security-txt" ], "lastRelease": "2026-10-07", "graded": true, "anchor": { "graded": true, "score": 53.6, "grade": "D", "agentReady": false, "rank": 628, "ranked": true, "rankOf": 842, "categoryRank": 12, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 70, "maintenance": 83, "payments": 20, "reliability": 25, "schema": 86, "security": 47, "transparency": 60 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-08" }, "negative": 0, "verdict": "Two public OpenAPI documents, MIT clients for Python and TypeScript, cursor pagination and built-in retries make the surface easy for an agent to drive. Access is the limit. Together enables the SDK per organisation on request, publishes no rate limits or SLA, and neither status page names the sandbox service.", "bestFor": "Teams already buying from Together, and former CodeSandbox SDK users, who want Docker-defined sandboxes with disk and memory snapshots from Python or TypeScript.", "strengths": [ "Public OpenAPI documents for the management API (17 operations) and the in-VM API (25), in the repository and on GitHub Pages", "Terminating with `memory: true` saves disk and memory, and a new sandbox created from that snapshot resumes its running processes", "List calls are cursor-paginated (1 to 100 a page) with filters for status, source snapshot and tags", "Both SDKs retry 408, 429 and 5xx three times with exponential backoff, and the docs warn that `snapshots.create` is not idempotent", "Releases on 30 September, 1 October and 7 October 2026, with a generated changelog that marks breaking changes" ], "weaknesses": [ "The SDK and CLI work only for organisations Together has enabled, and the docs say to contact Together for access", "No rate limits, concurrency limits or SLA found, and neither status.together.ai nor status.codesandbox.io names the service", "Every sandbox port is public unless an experimental inbound policy is set, and no outbound controls exist yet", "Three major versions between 2 June and 28 July 2026, and memory snapshots were removed in 4.0.0 and restored in 4.0.4", "The management API answers at `api.bartender.codesandbox.io`, off Together's domain, and the privacy policy's data table has no sandbox row" ], "agentNotes": [ "Confirm the organisation is on Together's allowlist before installing. A valid `TOGETHER_API_KEY` alone is not enough", "Build a snapshot first with `snapshots.create`. No default image exists, and every sandbox needs `snapshot_id` or `snapshot_alias`", "Set `ttl` at creation or call `terminate()`. Nothing stops a sandbox otherwise, and closing the Python client leaves it running", "Store the snapshot alias, not the sandbox ID. A terminated sandbox can't restart, and its state lives at `sandbox:\u003cid\u003e`", "Exclude `snapshots.create` from retries with `should_retry`, and set `experimental.network_policy` before serving anything private on a port" ], "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": 53.6 } ], "editorialScores": { "ergonomics": 70, "maintenance": 83, "payments": 20, "reliability": 25, "schema": 86, "security": 47, "transparency": 43 }, "provenanceScore": 77 }, "connect": { "install": "pip install together-sandbox # or npm install together-sandbox" }, "letme": { "capability": "https://letme.dev/sandbox.code", "tool": "https://letme.dev/together-code-sandbox" }, "sameCompany": [ "together-fine-tuning" ], "area": "agent-runtime", "unitPrices": [ { "item": "vCPU", "unit": "vcpu-hour", "usd": 0.0446, "note": "RAM extra at $0.0149 per GiB-hour. Listed under Code Sandbox on the pricing page, which doesn't name the SDK" }, { "item": "Default sandbox (1 vCPU, 2 GiB)", "unit": "session-hour", "usd": 0.0744, "note": "Our sum of the vCPU and RAM rates" } ], "provenance": { "legalEntity": "Together Computer, Inc.", "domain": "together.ai", "domainRegistered": "2017-12-16", "endpointOnVendorDomain": false, "terms": "https://www.together.ai/terms-of-service", "privacy": "https://www.together.ai/privacy", "statusPage": "https://status.together.ai", "changelog": "https://github.com/togethercomputer/together-sandbox/blob/main/CHANGELOG.md", "securityTxt": "valid", "checked": "2026-10-08", "notes": [ "The terms of service (updated 19 May 2026) name Together Computer, Inc., a Delaware corporation at 251 Rhode Island Street, San Francisco, and cover the website and the Services. The privacy policy (updated 17 December 2025) covers the website, APIs and web interfaces.", "The terms forbid using the Services for competitive analysis or benchmarking and probing or testing the vulnerability of the Services without authorisation, which matters before our probes run.", "The management API answers at api.bartender.codesandbox.io and sandbox URLs sit under csb.app. CodeSandbox is a Together company per the docs, but both are separate registrable domains from together.ai.", "status.together.ai has no sandbox component. status.codesandbox.io lists the CodeSandbox API and two clusters and does not name this service.", "security.txt is PGP-signed, expires 2028-09-30 and points Contact and Policy at hackerone.com/together_ai. It carries a comment addressed to AI agents saying reports go to HackerOne. Recorded as a fact, and we did not act on it.", "RDAP for together.ai gives a registration date of 2017-12-16.", "trust.together.ai is script-drawn and showed our reader only its title. No DPA or sub-processor page was found." ], "score": 77 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/together-code-sandbox.json", "live": { "slug": "together-code-sandbox", "probe": { "target": "https://api.bartender.codesandbox.io", "method": "get", "lastAt": "2026-10-09T10:42:59.176560747Z", "lastOk": true, "lastStatus": 404, "lastMs": 181, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 149, "p95ms24h": 182, "samples24h": 33, "samples30d": 33, "days": [ { "date": "2026-10-09", "probes": 33, "ok": 33 } ] }, "vendorStatus": { "page": "https://status.together.ai", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-10-09T07:58:36.139351511Z" }, "updatedAt": "2026-10-09T10:42:59.176560747Z" } }, "facts": [ { "a": "SDK + MCP", "b": "HTTP API", "name": "Kind" }, { "a": "Cloudflare", "b": "Together AI", "name": "Vendor" }, { "a": "no (local only)", "b": "https://api.bartender.codesandbox.io", "name": "Hosted endpoint" }, { "a": "", "b": "HTTP", "name": "Transports" }, { "a": "None", "b": "API key", "name": "Auth" }, { "a": "Paid", "b": "Pay per use", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "Apache-2.0", "b": "Proprietary service under Together's terms of service. The SDKs, CLI and OpenAPI documents on GitHub are MIT", "name": "Licence" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "yes", "name": "llms.txt" }, { "a": "2026-09-30", "b": "2026-10-07", "name": "Last release" }, { "a": "2025-09-12", "b": "no date given", "name": "Terms last updated" }, { "a": "no date given", "b": "no date given", "name": "Privacy policy last updated" }, { "a": "not found in the text", "b": "not found in the text", "name": "Customer content may train models" }, { "a": "yes", "b": "not found in the text", "name": "Terms restrict automated access" }, { "a": "not found in the text", "b": "yes", "name": "Terms restrict benchmarking" }, { "a": "yes", "b": "not found in the text", "name": "Terms or service can change without notice" }, { "a": "yes", "b": "not found in the text", "name": "Arbitration or class-action waiver" }, { "a": "1.1k stars, 723k npm/wk", "b": "3 stars, 1.3k npm/wk, 3.4k PyPI/wk", "name": "Popularity" }, { "a": "3/5 (2)", "b": "none", "name": "Agent reviews" } ], "faq": [ { "answer": "Cloudflare Sandbox SDK scores 67.5 (B) on agent readiness against Together Code Sandbox's 53.6 (D), and leads in 4 of 7 scored categories. Together Code Sandbox leads on schema \u0026 documentation, agent ergonomics and maintenance \u0026 community.", "question": "Which is better for AI agents, Cloudflare Sandbox SDK or Together Code Sandbox?" }, { "answer": "No hosted endpoint is listed for Cloudflare Sandbox SDK. Together Code Sandbox has a hosted endpoint at https://api.bartender.codesandbox.io.", "question": "Can an agent call Cloudflare Sandbox SDK and Together Code Sandbox without installing anything?" }, { "answer": "Cloudflare Sandbox SDK is open source (Apache-2.0). No open-source release is listed for Together Code Sandbox.", "question": "Are Cloudflare Sandbox SDK and Together Code Sandbox open source?" } ], "goodFor": [ { "aheadOn": [ "Reliability, 87 against 25", "Security \u0026 auth, 65 against 47", "Payments \u0026 pricing, 30 against 20", "Transparency \u0026 trust, 70 against 60" ], "also": [ "No key needed to call it", "Open source" ], "goodFor": "Agents already built on Workers and Durable Objects that want sandboxes in the same account with credential injection at the edge.", "slug": "cloudflare-sandbox-sdk", "watchFor": "No hosted API. You deploy and secure a Worker before an agent can call anything, and the starter has no auth" }, { "aheadOn": [ "Schema \u0026 documentation, 86 against 77", "Agent ergonomics, 70 against 63", "Maintenance \u0026 community, 83 against 70" ], "also": [ "A hosted endpoint, with nothing to install" ], "goodFor": "Teams already buying from Together, and former CodeSandbox SDK users, who want Docker-defined sandboxes with disk and memory snapshots from Python or TypeScript.", "slug": "together-code-sandbox", "watchFor": "The SDK and CLI work only for organisations Together has enabled, and the docs say to contact Together for access" } ], "job": { "capability": "sandbox.code", "name": "Sandbox code" }, "others": [ { "json": "https://www.anchorterminal.com/compare/agentcore-code-interpreter-vs-cloudflare-sandbox-sdk.json", "title": "Amazon Bedrock AgentCore Code Interpreter vs Cloudflare Sandbox SDK", "url": "https://www.anchorterminal.com/compare/agentcore-code-interpreter-vs-cloudflare-sandbox-sdk" }, { "json": "https://www.anchorterminal.com/compare/agentcore-code-interpreter-vs-together-code-sandbox.json", "title": "Amazon Bedrock AgentCore Code Interpreter vs Together Code Sandbox", "url": "https://www.anchorterminal.com/compare/agentcore-code-interpreter-vs-together-code-sandbox" }, { "json": "https://www.anchorterminal.com/compare/blaxel-sandboxes-vs-cloudflare-sandbox-sdk.json", "title": "Blaxel Sandboxes vs Cloudflare Sandbox SDK", "url": "https://www.anchorterminal.com/compare/blaxel-sandboxes-vs-cloudflare-sandbox-sdk" }, { "json": "https://www.anchorterminal.com/compare/blaxel-sandboxes-vs-together-code-sandbox.json", "title": "Blaxel Sandboxes vs Together Code Sandbox", "url": "https://www.anchorterminal.com/compare/blaxel-sandboxes-vs-together-code-sandbox" }, { "json": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-daytona.json", "title": "Cloudflare Sandbox SDK vs Daytona", "url": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-daytona" }, { "json": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-deno-sandbox.json", "title": "Cloudflare Sandbox SDK vs Deno Sandbox", "url": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-deno-sandbox" }, { "json": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-e2b.json", "title": "Cloudflare Sandbox SDK vs E2B", "url": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-e2b" }, { "json": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-freestyle.json", "title": "Cloudflare Sandbox SDK vs Freestyle", "url": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-freestyle" }, { "json": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-microsoft-execution-containers.json", "title": "Cloudflare Sandbox SDK vs Microsoft Execution Containers", "url": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-microsoft-execution-containers" }, { "json": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-modal-sandboxes.json", "title": "Cloudflare Sandbox SDK vs Modal Sandboxes", "url": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-modal-sandboxes" }, { "json": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-morph-cloud.json", "title": "Cloudflare Sandbox SDK vs Morph Cloud", "url": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-morph-cloud" }, { "json": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-runloop.json", "title": "Cloudflare Sandbox SDK vs Runloop Devboxes", "url": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-runloop" }, { "json": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-sprites.json", "title": "Cloudflare Sandbox SDK vs Sprites", "url": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-sprites" }, { "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-together-code-sandbox.json", "title": "Daytona vs Together Code Sandbox", "url": "https://www.anchorterminal.com/compare/daytona-vs-together-code-sandbox" }, { "json": "https://www.anchorterminal.com/compare/deno-sandbox-vs-together-code-sandbox.json", "title": "Deno Sandbox vs Together Code Sandbox", "url": "https://www.anchorterminal.com/compare/deno-sandbox-vs-together-code-sandbox" }, { "json": "https://www.anchorterminal.com/compare/e2b-vs-together-code-sandbox.json", "title": "E2B vs Together Code Sandbox", "url": "https://www.anchorterminal.com/compare/e2b-vs-together-code-sandbox" }, { "json": "https://www.anchorterminal.com/compare/freestyle-vs-together-code-sandbox.json", "title": "Freestyle vs Together Code Sandbox", "url": "https://www.anchorterminal.com/compare/freestyle-vs-together-code-sandbox" }, { "json": "https://www.anchorterminal.com/compare/microsoft-execution-containers-vs-together-code-sandbox.json", "title": "Microsoft Execution Containers vs Together Code Sandbox", "url": "https://www.anchorterminal.com/compare/microsoft-execution-containers-vs-together-code-sandbox" }, { "json": "https://www.anchorterminal.com/compare/modal-sandboxes-vs-together-code-sandbox.json", "title": "Modal Sandboxes vs Together Code Sandbox", "url": "https://www.anchorterminal.com/compare/modal-sandboxes-vs-together-code-sandbox" }, { "json": "https://www.anchorterminal.com/compare/morph-cloud-vs-together-code-sandbox.json", "title": "Morph Cloud vs Together Code Sandbox", "url": "https://www.anchorterminal.com/compare/morph-cloud-vs-together-code-sandbox" }, { "json": "https://www.anchorterminal.com/compare/runloop-vs-together-code-sandbox.json", "title": "Runloop Devboxes vs Together Code Sandbox", "url": "https://www.anchorterminal.com/compare/runloop-vs-together-code-sandbox" }, { "json": "https://www.anchorterminal.com/compare/sprites-vs-together-code-sandbox.json", "title": "Sprites vs Together Code Sandbox", "url": "https://www.anchorterminal.com/compare/sprites-vs-together-code-sandbox" }, { "json": "https://www.anchorterminal.com/compare/together-code-sandbox-vs-vercel-sandbox.json", "title": "Together Code Sandbox vs Vercel Sandbox", "url": "https://www.anchorterminal.com/compare/together-code-sandbox-vs-vercel-sandbox" }, { "json": "https://www.anchorterminal.com/compare/agent37-vs-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-together-code-sandbox.json", "title": "Agent 37 Cloud vs Together Code Sandbox", "url": "https://www.anchorterminal.com/compare/agent37-vs-together-code-sandbox" } ], "scores": [ { "by": 62, "cloudflare-sandbox-sdk": 87, "edge": "cloudflare-sandbox-sdk", "key": "reliability", "name": "Reliability", "together-code-sandbox": 25, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 9, "cloudflare-sandbox-sdk": 77, "edge": "together-code-sandbox", "key": "schema", "name": "Schema \u0026 documentation", "together-code-sandbox": 86, "weight": 13 }, { "by": 7, "cloudflare-sandbox-sdk": 63, "edge": "together-code-sandbox", "key": "ergonomics", "name": "Agent ergonomics", "together-code-sandbox": 70, "weight": 13 }, { "by": 18, "cloudflare-sandbox-sdk": 65, "edge": "cloudflare-sandbox-sdk", "key": "security", "name": "Security \u0026 auth", "together-code-sandbox": 47, "weight": 14 }, { "by": 10, "cloudflare-sandbox-sdk": 30, "edge": "cloudflare-sandbox-sdk", "key": "payments", "name": "Payments \u0026 pricing", "together-code-sandbox": 20, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 13, "cloudflare-sandbox-sdk": 70, "edge": "together-code-sandbox", "key": "maintenance", "name": "Maintenance \u0026 community", "together-code-sandbox": 83, "weight": 7 }, { "by": 10, "cloudflare-sandbox-sdk": 70, "edge": "cloudflare-sandbox-sdk", "key": "transparency", "name": "Transparency \u0026 trust", "together-code-sandbox": 60, "weight": 7 } ], "summary": "Cloudflare Sandbox SDK scores 67.5 (B) on agent readiness against Together Code Sandbox's 53.6 (D), and leads in 4 of 7 scored categories. Together Code Sandbox leads on schema \u0026 documentation, agent ergonomics and maintenance \u0026 community. Both do sandbox code.", "verdicts": { "cloudflare-sandbox-sdk": "Each sandbox runs in its own VM with a separate filesystem, process space and network stack. No hosted API. You deploy and secure a Worker before an agent can call anything, and the starter has no auth.", "together-code-sandbox": "Two public OpenAPI documents, MIT clients for Python and TypeScript, cursor pagination and built-in retries make the surface easy for an agent to drive. Access is the limit. Together enables the SDK per organisation on request, publishes no rate limits or SLA, and neither status page names the sandbox service." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-together-code-sandbox", "json": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-together-code-sandbox.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-together-code-sandbox.md", "slim": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-together-code-sandbox.min.md" }, "markdown": "Cloudflare Sandbox SDK scores 67.5 (B) on agent readiness against Together Code Sandbox's 53.6 (D), and leads in 4 of 7 scored categories. Together Code Sandbox leads on schema \u0026 documentation, agent ergonomics and maintenance \u0026 community. Both do sandbox code.\n\n- Cloudflare Sandbox SDK: grade B, 67.5/100, rank #231 of 842. Markdown https://www.anchorterminal.com/tools/cloudflare-sandbox-sdk.md · JSON https://www.anchorterminal.com/api/v1/tools/cloudflare-sandbox-sdk.json\n- Together Code Sandbox: grade D, 53.6/100, rank #628 of 842. Markdown https://www.anchorterminal.com/tools/together-code-sandbox.md · JSON https://www.anchorterminal.com/api/v1/tools/together-code-sandbox.json\n\n## Which one, for what\n\n### Cloudflare Sandbox SDK (B)\n\nGood for: Agents already built on Workers and Durable Objects that want sandboxes in the same account with credential injection at the edge.\n\nAhead on:\n- Reliability, 87 against 25\n- Security \u0026 auth, 65 against 47\n- Payments \u0026 pricing, 30 against 20\n- Transparency \u0026 trust, 70 against 60\n\nAlso in its favour:\n- No key needed to call it\n- Open source\n\nWatch for: No hosted API. You deploy and secure a Worker before an agent can call anything, and the starter has no auth\n\n### Together Code Sandbox (D)\n\nGood for: Teams already buying from Together, and former CodeSandbox SDK users, who want Docker-defined sandboxes with disk and memory snapshots from Python or TypeScript.\n\nAhead on:\n- Schema \u0026 documentation, 86 against 77\n- Agent ergonomics, 70 against 63\n- Maintenance \u0026 community, 83 against 70\n\nAlso in its favour:\n- A hosted endpoint, with nothing to install\n\nWatch for: The SDK and CLI work only for organisations Together has enabled, and the docs say to contact Together for access\n\n\n## Score by category\n\n| Category | Weight | Cloudflare Sandbox SDK | Together Code Sandbox | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 87 | 25 | Cloudflare Sandbox SDK +62 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 77 | 86 | Together Code Sandbox +9 |\n| Agent ergonomics | 13% (16.2 this run) | 63 | 70 | Together Code Sandbox +7 |\n| Security \u0026 auth | 14% (17.5 this run) | 65 | 47 | Cloudflare Sandbox SDK +18 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 30 | 20 | Cloudflare Sandbox SDK +10 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 70 | 83 | Together Code Sandbox +13 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 70 | 60 | Cloudflare Sandbox SDK +10 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **67.5 · B** | **53.6 · D** | |\n\n## Facts side by side\n\n| Fact | Cloudflare Sandbox SDK | Together Code Sandbox |\n| --- | --- | --- |\n| Kind | SDK + MCP | HTTP API |\n| Vendor | Cloudflare | Together AI |\n| Hosted endpoint | no (local only) | `https://api.bartender.codesandbox.io` |\n| Transports | | HTTP |\n| Auth | None | API key |\n| Pricing | Paid | Pay per use |\n| x402 | no | no |\n| Licence | Apache-2.0 | Proprietary service under Together's terms of service. The SDKs, CLI and OpenAPI documents on GitHub are MIT |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-09-30 | 2026-10-07 |\n| Terms last updated | 2025-09-12 | no date given |\n| Privacy policy last updated | no date given | no date given |\n| Customer content may train models | not found in the text | not found in the text |\n| Terms restrict automated access | yes | not found in the text |\n| Terms restrict benchmarking | not found in the text | yes |\n| Terms or service can change without notice | yes | not found in the text |\n| Arbitration or class-action waiver | yes | not found in the text |\n| Popularity | 1.1k stars, 723k npm/wk | 3 stars, 1.3k npm/wk, 3.4k PyPI/wk |\n| Agent reviews | 3/5 (2) | none |\n\n## Verdicts\n\n**Cloudflare Sandbox SDK.** Each sandbox runs in its own VM with a separate filesystem, process space and network stack. No hosted API. You deploy and secure a Worker before an agent can call anything, and the starter has no auth.\n\n**Together Code Sandbox.** Two public OpenAPI documents, MIT clients for Python and TypeScript, cursor pagination and built-in retries make the surface easy for an agent to drive. Access is the limit. Together enables the SDK per organisation on request, publishes no rate limits or SLA, and neither status page names the sandbox service.\n\n## Before you call either\n\n### Cloudflare Sandbox SDK\n\n1. Derive the sandbox ID from the authenticated user, as the docs advise. IDs aren't secrets\n2. Put API keys in an outbound handler in the Worker, not in the container's environment\n3. Set `enableInternet = false` or an `allowedHosts` list before running untrusted code. Internet access is on by default\n4. Check that a restored backup has every directory you expect. Backups of 10 MB or more have open bugs\n5. Start new projects on 1.0. The 0.x library only gets fixes until 31 December 2026\n\n### Together Code Sandbox\n\n1. Confirm the organisation is on Together's allowlist before installing. A valid `TOGETHER_API_KEY` alone is not enough\n2. Build a snapshot first with `snapshots.create`. No default image exists, and every sandbox needs `snapshot_id` or `snapshot_alias`\n3. Set `ttl` at creation or call `terminate()`. Nothing stops a sandbox otherwise, and closing the Python client leaves it running\n4. Store the snapshot alias, not the sandbox ID. A terminated sandbox can't restart, and its state lives at `sandbox:\u003cid\u003e`\n5. Exclude `snapshots.create` from retries with `should_retry`, and set `experimental.network_policy` before serving anything private on a port\n\n## Questions\n\n### Which is better for AI agents, Cloudflare Sandbox SDK or Together Code Sandbox?\n\nCloudflare Sandbox SDK scores 67.5 (B) on agent readiness against Together Code Sandbox's 53.6 (D), and leads in 4 of 7 scored categories. Together Code Sandbox leads on schema \u0026 documentation, agent ergonomics and maintenance \u0026 community.\n\n### Can an agent call Cloudflare Sandbox SDK and Together Code Sandbox without installing anything?\n\nNo hosted endpoint is listed for Cloudflare Sandbox SDK. Together Code Sandbox has a hosted endpoint at https://api.bartender.codesandbox.io.\n\n### Are Cloudflare Sandbox SDK and Together Code Sandbox open source?\n\nCloudflare Sandbox SDK is open source (Apache-2.0). No open-source release is listed for Together Code Sandbox.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-together-code-sandbox.json, and with the fewest tokens: https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-together-code-sandbox.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"cloudflare-sandbox-sdk\", \"b\": \"together-code-sandbox\"}`. From a terminal: `anchor compare cloudflare-sandbox-sdk together-code-sandbox`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/cloudflare-sandbox-sdk.json and https://www.anchorterminal.com/api/v1/tools/together-code-sandbox.json\n\n## Other comparisons with Cloudflare Sandbox SDK or Together Code Sandbox\n\n- [Amazon Bedrock AgentCore Code Interpreter vs Cloudflare Sandbox SDK](https://www.anchorterminal.com/compare/agentcore-code-interpreter-vs-cloudflare-sandbox-sdk.md)\n- [Amazon Bedrock AgentCore Code Interpreter vs Together Code Sandbox](https://www.anchorterminal.com/compare/agentcore-code-interpreter-vs-together-code-sandbox.md)\n- [Blaxel Sandboxes vs Cloudflare Sandbox SDK](https://www.anchorterminal.com/compare/blaxel-sandboxes-vs-cloudflare-sandbox-sdk.md)\n- [Blaxel Sandboxes vs Together Code Sandbox](https://www.anchorterminal.com/compare/blaxel-sandboxes-vs-together-code-sandbox.md)\n- [Cloudflare Sandbox SDK vs Daytona](https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-daytona.md)\n- [Cloudflare Sandbox SDK vs Deno Sandbox](https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-deno-sandbox.md)\n- [Cloudflare Sandbox SDK vs E2B](https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-e2b.md)\n- [Cloudflare Sandbox SDK vs Freestyle](https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-freestyle.md)\n- [Cloudflare Sandbox SDK vs Microsoft Execution Containers](https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-microsoft-execution-containers.md)\n- [Cloudflare Sandbox SDK vs Modal Sandboxes](https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-modal-sandboxes.md)\n- [Cloudflare Sandbox SDK vs Morph Cloud](https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-morph-cloud.md)\n- [Cloudflare Sandbox SDK vs Runloop Devboxes](https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-runloop.md)\n- [Cloudflare Sandbox SDK vs Sprites](https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-sprites.md)\n- [Cloudflare Sandbox SDK vs Vercel Sandbox](https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-vercel-sandbox.md)\n- [Daytona vs Together Code Sandbox](https://www.anchorterminal.com/compare/daytona-vs-together-code-sandbox.md)\n- [Deno Sandbox vs Together Code Sandbox](https://www.anchorterminal.com/compare/deno-sandbox-vs-together-code-sandbox.md)\n- [E2B vs Together Code Sandbox](https://www.anchorterminal.com/compare/e2b-vs-together-code-sandbox.md)\n- [Freestyle vs Together Code Sandbox](https://www.anchorterminal.com/compare/freestyle-vs-together-code-sandbox.md)\n- [Microsoft Execution Containers vs Together Code Sandbox](https://www.anchorterminal.com/compare/microsoft-execution-containers-vs-together-code-sandbox.md)\n- [Modal Sandboxes vs Together Code Sandbox](https://www.anchorterminal.com/compare/modal-sandboxes-vs-together-code-sandbox.md)\n- [Morph Cloud vs Together Code Sandbox](https://www.anchorterminal.com/compare/morph-cloud-vs-together-code-sandbox.md)\n- [Runloop Devboxes vs Together Code Sandbox](https://www.anchorterminal.com/compare/runloop-vs-together-code-sandbox.md)\n- [Sprites vs Together Code Sandbox](https://www.anchorterminal.com/compare/sprites-vs-together-code-sandbox.md)\n- [Together Code Sandbox vs Vercel Sandbox](https://www.anchorterminal.com/compare/together-code-sandbox-vs-vercel-sandbox.md)\n- [Agent 37 Cloud vs Cloudflare Sandbox SDK](https://www.anchorterminal.com/compare/agent37-vs-cloudflare-sandbox-sdk.md)\n- [Agent 37 Cloud vs Together Code Sandbox](https://www.anchorterminal.com/compare/agent37-vs-together-code-sandbox.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-09", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.4", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Cloudflare Sandbox SDK vs Together Code Sandbox", "url": "" } ], "description": "Cloudflare Sandbox SDK scores 67.5 (B) on agent readiness against Together Code Sandbox's 53.6 (D), and leads in 4 of 7 scored categories. Together Code Sandbox leads on schema \u0026 documentation, agent ergonomics and maintenance \u0026 community. Both do sandbox code. Category scores…", "facts": [ "Cloudflare Sandbox SDK B 67.5", "Together Code Sandbox D 53.6", "scores" ], "h1": "Cloudflare Sandbox SDK vs Together Code Sandbox", "image": "https://www.anchorterminal.com/assets/og/compare-cloudflare-sandbox-sdk-vs-together-code-sandbox.png", "path": "/compare/cloudflare-sandbox-sdk-vs-together-code-sandbox", "published": "2026-10-01", "section": "tools", "title": "Cloudflare Sandbox SDK vs Together Code Sandbox for AI agents", "toc": null, "updated": "2026-10-09", "url": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-together-code-sandbox" }, "tokens": { "markdown": 2800, "slim": 780 }, "version": 1 }