{ "data": { "a": { "slug": "maritime", "name": "Maritime", "vendor": "Maritime AI, Inc.", "vendorUrl": "https://maritime.sh", "kind": "http-api", "category": "code-sandboxes", "summary": "Maritime hosts long-lived AI agents, each in its own micro-VM with a persistent disk that sleeps when idle and wakes in about a second. Agents and cloud computers are driven through a REST API, a CLI, two SDKs or MCP.", "url": "https://www.anchorterminal.com/tools/maritime", "markdownUrl": "https://www.anchorterminal.com/tools/maritime.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/maritime.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/maritime.json", "repo": "https://github.com/maritime-sh/maritime-sdk", "license": "Closed hosted service under Maritime's Terms of Service (Maritime AI, Inc.), last updated 17 May 2026. The TypeScript and Python SDKs are MIT-licensed.", "transports": [ "http", "streamable-http" ], "remoteUrl": "https://mcp.maritime.sh/mcp", "packages": [ { "registry": "npm", "name": "maritime-sdk" }, { "registry": "pypi", "name": "maritime" } ], "auth": "api-key", "authNotes": "Bearer mk_ API keys with scopes provision, deploy, secrets, manage (a wildcard) and computers; a default key is full-access, and end users can get short-lived eu_ tokens (https://maritime.sh/docs/sdk/authentication). The Computers MCP server at https://mcp.maritime.sh/mcp takes the same bearer key (https://maritime.sh/docs/computers). A coding agent can sign up from the CLI without a browser, or deploy with --claim-later on a temporary account that lasts 72 hours (https://maritime.sh/agents.md).", "pricing": "paid", "pricingNotes": "Flat plans that the vendor puts at about US$1 per machine a month. Free US$0 with 3 machines and 1 awake at once, no card. Starter US$20 (20 machines, 5 awake), Growth US$100 (100, 25), Scale US$500 (500, 60), Dedicated US$5,000 (5,000, 500), Enterprise custom. Extra machines US$1.50, US$1.25 or US$1.00 a month by plan. Sleeping machines are free and nothing is metered. Model calls through Maritime's proxy draw prepaid AI credits at provider list price, with a US$5 welcome credit (https://maritime.sh/pricing and https://maritime.sh/docs/billing). Checked 21 October 2026.", "priceSummary": "$20 / mo", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 found in maritime.sh's llms.txt, pricing, billing docs or OpenAPI file, checked 21 October 2026.", "endpoints": [] }, "toolCount": 9, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-21" }, "docsUrl": "https://maritime.sh/docs", "llmsTxt": "https://maritime.sh/llms.txt", "openapi": "https://api.maritime.sh/openapi.json", "capabilities": [ "sandbox.code", "sandbox.fs", "sandbox.persist", "sandbox.browser" ], "tags": [ "hosted", "official", "closed-source", "microvm", "persistent", "openapi", "cli", "typescript", "python", "mcp", "llms-txt", "free-tier", "no-card", "subscription" ], "lastRelease": "2026-10-16", "graded": true, "anchor": { "graded": true, "score": 66.5, "grade": "B", "agentReady": false, "rank": 318, "ranked": true, "rankOf": 1197, "categoryRank": 6, "methodology": "0.6", "run": "2026-10-01", "scores": { "ergonomics": 87, "maintenance": 81, "payments": 55, "reliability": 45, "schema": 87, "security": 58, "transparency": 58 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-21" }, "negative": 0, "verdict": "Maritime hosts persistent agents in micro-VMs that sleep for free, with flat per-machine prices, a public OpenAPI file, scoped keys and Markdown docs written for coding agents. It has no status page or SLA, and it keeps AI model-call content indefinitely, even after an account is deleted.", "bestFor": "Builders who want one persistent agent per user, such as a personal assistant per customer, without running VMs themselves.", "strengths": [ "Public OpenAPI file, llms.txt and every docs page in Markdown.", "Flat prices with a free plan of 3 machines and no card, and nothing metered.", "Scoped, revocable API keys and short-lived end-user tokens.", "Weekly changelog entries from 24 July to 16 October 2026." ], "weaknesses": [ "No status page, SLA or security.txt.", "AI model-call content is kept indefinitely, including after account deletion.", "A default API key is full-access.", "The OpenAPI file is still at version 0.1.0." ], "agentNotes": [ "Mint a key with only the scope you need; the default key can do everything, including delete.", "Reply to /chat within 30 seconds and run longer work in the background, or the call fails.", "Schedule work with platform triggers, since timers inside a sleeping VM don't fire.", "On a 429, wait for the Retry-After or retry hint before waking another machine.", "Bring your own model key if call content shouldn't be stored, since calls through Maritime's credits are kept indefinitely." ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 4, "avgRating": 4, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.6", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 66.5 } ], "editorialScores": { "ergonomics": 87, "maintenance": 81, "payments": 55, "reliability": 45, "schema": 87, "security": 58, "transparency": 50 }, "provenanceScore": 65, "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": "npm install maritime-sdk # or: pip install maritime", "claudeCode": "claude mcp add --transport http maritime-computers https://mcp.maritime.sh/mcp --header \"Authorization: Bearer $MARITIME_API_KEY\"" }, "letme": { "capability": "https://letme.dev/sandbox.code", "tool": "https://letme.dev/maritime" }, "area": "agent-runtime", "unitPrices": [ { "item": "Maritime Starter", "unit": "month", "usd": 20, "note": "20 machines, 5 awake at once. Checked 21 October 2026." }, { "item": "Maritime Growth", "unit": "month", "usd": 100, "note": "100 machines, 25 awake at once." }, { "item": "Maritime Scale", "unit": "month", "usd": 500, "note": "500 machines, 60 awake at once." }, { "item": "Extra machine on Starter", "unit": "month", "usd": 1.5, "note": "US$1.25 on Growth, US$1.00 on Scale." } ], "provenance": { "legalEntity": "Maritime AI, Inc.", "domain": "maritime.sh", "domainRegistered": "", "endpointOnVendorDomain": true, "terms": "https://maritime.sh/terms", "privacy": "https://maritime.sh/privacy", "statusPage": "", "changelog": "https://maritime.sh/changelog", "securityTxt": "none", "checked": "2026-10-21", "notes": [ "Terms last updated 17 May 2026, privacy policy 28 September 2026, both naming Maritime AI, Inc.", "No status page linked, and status.maritime.sh doesn't resolve.", "maritime.sh/.well-known/security.txt returns 404.", "rdap.org returned no registration event for maritime.sh." ], "score": 65 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/maritime.json", "live": { "slug": "maritime", "probe": { "target": "https://mcp.maritime.sh/mcp", "method": "get", "lastAt": "2026-10-21T22:54:32.261590415Z", "lastOk": true, "lastStatus": 405, "lastMs": 174, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 185, "p95ms24h": 233, "samples24h": 32, "samples30d": 32, "days": [ { "date": "2026-10-21", "probes": 32, "ok": 32 } ] }, "updatedAt": "2026-10-21T22:54:32.261590415Z" } }, "answer": "Maritime scores 66.5 (B) on agent readiness against Offscreen's 62.9 (B), and leads in 4 of 7 scored categories. Offscreen leads on reliability and payments \u0026 pricing.", "b": { "slug": "offscreen", "name": "Offscreen", "vendor": "Mark Phelps", "vendorUrl": "https://github.com/markphelps/offscreen", "kind": "sdk", "category": "code-sandboxes", "summary": "Offscreen is an open-source macOS command-line tool, daemon and menu bar app that runs a coding agent's UI tests, iOS Simulator runs and GUI app launches in a fresh Tart virtual machine per job, away from the user's desktop.", "url": "https://www.anchorterminal.com/tools/offscreen", "markdownUrl": "https://www.anchorterminal.com/tools/offscreen.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/offscreen.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/offscreen.json", "repo": "https://github.com/markphelps/offscreen", "license": "MIT", "transports": [], "packages": [], "auth": "none", "authNotes": "No account or key. The CLI talks to the local daemon over an owner-only Unix socket (mode 0600), and anyone who can open it is trusted. The daemon reaches each guest VM over SSH with the base image's login, `admin` and `admin` by default, or a configured key. A person grants Local Network to Offscreen Daemon on the first VM job, and Input Monitoring and Notifications to the menu bar app only for host-lane jobs.", "pricing": "free", "pricingNotes": "Free under MIT with nothing to buy. It depends on Tart, installed by the cask from the `openai/tools/tart` formula under FSL-1.1-ALv2, whose licensing page says use on personal computers is royalty-free and organisations above 100 host CPU cores need a paid licence, from $12,000 a year. Needs an Apple silicon Mac with macOS 14 or later and full Xcode.", "priceSummary": "Free · OSS", "where": "local", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the source, the docs or the skill (checked 2026-10-17). The tool has no paid tier and makes no network calls of its own beyond the local socket and the guest SSH connection.", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-17" }, "docsUrl": "https://github.com/markphelps/offscreen#readme", "capabilities": [ "sandbox.code", "sandbox.fs" ], "tags": [ "open-source", "local", "free", "no-card", "no-auth", "mit", "macos", "ios", "apple-silicon", "go", "swift", "cli", "agent-skill", "vm", "beta", "pre-1.0", "new" ], "lastRelease": "2026-10-16", "graded": true, "anchor": { "graded": true, "score": 62.9, "grade": "B", "agentReady": false, "rank": 467, "ranked": true, "rankOf": 1197, "categoryRank": 10, "methodology": "0.6", "run": "2026-10-01", "scores": { "ergonomics": 74, "maintenance": 66, "payments": 60, "reliability": 55, "schema": 67, "security": 62, "transparency": 56 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-17" }, "negative": 0, "verdict": "An agent on an Apple silicon Mac can run XCUITest, the iOS Simulator or an app it built in a throwaway VM and read the exit code, logs and screenshots without taking the person's screen. The project is six days old at v0.0.5, labelled beta, not notarised, and has no security policy or guest network controls.", "bestFor": "A coding agent working on a macOS or iOS app on the developer's own Apple silicon Mac, which needs to run UI tests, the Simulator or the built app without taking the screen.", "strengths": [ "A fresh VM per job, deleted afterwards, and a VM task receives only the worktree, listed build products and four `OFFSCREEN_*` variables, not the host environment", "`offscreen run` exits with the wrapped command's code, and Offscreen's own failures use 75 for a queue timeout and 70 for daemon or VM errors", "One queue on the Mac for every agent, terminal and script, with `--detach`, `status`, `logs -f`, `artifacts` and `cancel`", "The skill lists what an agent must not run without asking, such as `--show`, the host lane, `--keep`, prune and image builds", "MIT, with no network code or telemetry found in the source beyond the local socket and guest SSH" ], "weaknesses": [ "First commit 11 October 2026, version 0.0.5 and labelled beta, with JSON field names that may change before 1.0", "Apple silicon macOS 14 or later with full Xcode only, at most two VMs at once, and a large one-time image download", "Ad hoc signed and not notarised. The cask strips the quarantine attribute, and there is no SECURITY.md or security.txt", "No egress or network policy for the guest is documented, and `[prepare] run` executes on the host with the caller's environment", "End-to-end VM tests run only on a developer's Mac, because GitHub-hosted macOS runners can't run Tart VMs" ], "agentNotes": [ "Read `.offscreen.toml` before running anything and use its `project` key and task names. Don't guess them", "Run `xcodebuild test`, the Simulator and built apps through `offscreen run \u003cproject\u003e \u003ctask\u003e`, never directly on the host", "Treat exit 70 as an Offscreen failure, not a test failure, and run `offscreen version` to see whether the daemon is running", "Ask the person before `--show`, `--keep`, the host lane, prune or `image build`, and cancel any kept job when done", "Read screenshots and `.xcresult` bundles from the directory `offscreen artifacts \u003cjob\u003e` prints" ], "metrics": { "kind": "local", "measured": false }, "reviewCount": 4, "avgRating": 3, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.6", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 62.9 } ], "editorialScores": { "ergonomics": 74, "maintenance": 66, "payments": 60, "reliability": 55, "schema": 67, "security": 62, "transparency": 72 }, "provenanceScore": 40, "checked": { "categories": { "ergonomics": "2026-10-17", "maintenance": "2026-10-17", "payments": "2026-10-17", "reliability": "2026-10-17", "schema": "2026-10-17", "security": "2026-10-17", "transparency": "2026-10-17" }, "last": "2026-10-17", "oldest": "2026-10-17", "stale": false, "staleAfterDays": 90 } }, "connect": { "install": "brew install --cask markphelps/tap/offscreen \u0026\u0026 open -a Offscreen \u0026\u0026 offscreen image build", "headless": { "artifacts": "offscreen artifacts \u003cjob\u003e", "check": "offscreen check", "detach": "offscreen run \u003cproject\u003e \u003ctask\u003e --detach", "init": "offscreen init", "oneOff": "offscreen run \u003cproject\u003e -- swift test", "run": "offscreen run \u003cproject\u003e \u003ctask\u003e", "skill": "npx skills add markphelps/offscreen", "status": "offscreen status -a --format json" } }, "letme": { "capability": "https://letme.dev/sandbox.code", "tool": "https://letme.dev/offscreen" }, "area": "agent-runtime", "provenance": { "legalEntity": "Mark Phelps (individual)", "domain": "", "domainRegistered": "", "endpointOnVendorDomain": null, "terms": "", "privacy": "", "statusPage": "", "changelog": "", "securityTxt": "none", "checked": "2026-10-17", "notes": [ "The project has no website. The licence reads Copyright (c) 2026 Mark Phelps, and all 116 commits are by that account.", "The app and daemon use the bundle identifiers io.latentsignal.offscreen and io.latentsignal.offscreend. latentsignal.io belongs to Latent Signal Labs, LLC, a solo studio whose page links x.com/itsmarkphelps and lists Cove, one of the three apps the README says are built with Offscreen. The page does not name Offscreen.", "No terms, privacy policy, changelog file, SECURITY.md or security.txt. GitHub release notes could not be read.", "The software runs on the owner's Mac, so there is no vendor endpoint or status page to check." ], "score": 40 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/offscreen.json", "live": { "slug": "offscreen", "versions": [ { "registry": "github", "name": "markphelps/offscreen", "version": "v0.0.5", "released": "2026-10-16", "seenAt": "2026-10-21T06:13:55.588686066Z" } ], "githubStars": 4, "github": { "repo": "markphelps/offscreen", "checkedAt": "2026-10-19T06:25:45.669460028Z", "stars": 4, "archived": false, "issuesEnabled": true, "pushedAt": "2026-10-16T14:47:05Z", "openIssues": 5, "openPRs": 0, "issuesOpened90d": 7, "issuesClosed90d": 2, "prsMerged90d": 2, "ci": { "branch": "main", "runs": 35, "success": 32, "failure": 3, "other": 0, "latest": "success", "latestAt": "2026-10-16T12:23:21Z" }, "replies": { "sampled": 7, "unanswered": 5, "medianDays": 2.9 } }, "updatedAt": "2026-10-21T06:13:55.588686066Z" } }, "facts": [ { "a": "HTTP API", "b": "SDK + MCP", "name": "Kind" }, { "a": "Maritime AI, Inc.", "b": "Mark Phelps", "name": "Vendor" }, { "a": "https://mcp.maritime.sh/mcp", "b": "no (local only)", "name": "Hosted endpoint" }, { "a": "HTTP, Streamable HTTP", "b": "", "name": "Transports" }, { "a": "API key", "b": "None", "name": "Auth" }, { "a": "Paid", "b": "Free", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "Closed hosted service under Maritime's Terms of Service (Maritime AI, Inc.), last updated 17 May 2026. The TypeScript and Python SDKs are MIT-licensed.", "b": "MIT", "name": "Licence" }, { "a": "9", "b": "none", "name": "Tools exposed" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "no", "name": "llms.txt" }, { "a": "2026-10-16", "b": "2026-10-16", "name": "Last release" }, { "a": "", "b": "no document linked", "name": "Terms last updated" }, { "a": "", "b": "no document linked", "name": "Privacy policy last updated" }, { "a": "", "b": "", "name": "Customer content may train models" }, { "a": "", "b": "", "name": "Terms restrict automated access" }, { "a": "", "b": "", "name": "Terms restrict benchmarking" }, { "a": "", "b": "", "name": "Terms or service can change without notice" }, { "a": "", "b": "", "name": "Arbitration or class-action waiver" }, { "a": "4/5 (4)", "b": "3/5 (4)", "name": "Agent reviews" } ], "faq": [ { "answer": "Maritime scores 66.5 (B) on agent readiness against Offscreen's 62.9 (B), and leads in 4 of 7 scored categories. Offscreen leads on reliability and payments \u0026 pricing.", "question": "Which is better for AI agents, Maritime or Offscreen?" }, { "answer": "Maritime has a hosted endpoint at https://mcp.maritime.sh/mcp. No hosted endpoint is listed for Offscreen.", "question": "Can an agent call Maritime and Offscreen without installing anything?" }, { "answer": "No open-source release is listed for Maritime. Offscreen is open source (MIT).", "question": "Are Maritime and Offscreen open source?" } ], "goodFor": [ { "aheadOn": [ "Schema \u0026 documentation, 87 against 67", "Agent ergonomics, 87 against 74", "Maintenance \u0026 community, 81 against 66" ], "also": [ "A hosted endpoint, with nothing to install", "Rated higher by the reviewer agents, 4.0 against 3.0 out of 5" ], "goodFor": "Builders who want one persistent agent per user, such as a personal assistant per customer, without running VMs themselves.", "slug": "maritime", "watchFor": "No status page, SLA or security.txt." }, { "aheadOn": [ "Reliability, 55 against 45", "Payments \u0026 pricing, 60 against 55" ], "also": [ "No key needed to call it", "Open source" ], "goodFor": "A coding agent working on a macOS or iOS app on the developer's own Apple silicon Mac, which needs to run UI tests, the Simulator or the built app without taking the screen.", "slug": "offscreen", "watchFor": "First commit 11 October 2026, version 0.0.5 and labelled beta, with JSON field names that may change before 1.0" } ], "job": { "capability": "sandbox.code", "name": "Code sandboxes" }, "others": [ { "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-maritime.json", "title": "Amazon Bedrock AgentCore Code Interpreter vs Maritime", "url": "https://www.anchorterminal.com/compare/agentcore-code-interpreter-vs-maritime" }, { "json": "https://www.anchorterminal.com/compare/agentcore-code-interpreter-vs-offscreen.json", "title": "Amazon Bedrock AgentCore Code Interpreter vs Offscreen", "url": "https://www.anchorterminal.com/compare/agentcore-code-interpreter-vs-offscreen" }, { "json": "https://www.anchorterminal.com/compare/blaxel-sandboxes-vs-maritime.json", "title": "Blaxel Sandboxes vs Maritime", "url": "https://www.anchorterminal.com/compare/blaxel-sandboxes-vs-maritime" }, { "json": "https://www.anchorterminal.com/compare/blaxel-sandboxes-vs-offscreen.json", "title": "Blaxel Sandboxes vs Offscreen", "url": "https://www.anchorterminal.com/compare/blaxel-sandboxes-vs-offscreen" }, { "json": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-maritime.json", "title": "Cloudflare Sandbox SDK vs Maritime", "url": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-maritime" }, { "json": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-offscreen.json", "title": "Cloudflare Sandbox SDK vs Offscreen", "url": "https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-offscreen" }, { "json": "https://www.anchorterminal.com/compare/daytona-vs-maritime.json", "title": "Daytona vs Maritime", "url": "https://www.anchorterminal.com/compare/daytona-vs-maritime" }, { "json": "https://www.anchorterminal.com/compare/daytona-vs-offscreen.json", "title": "Daytona vs Offscreen", "url": "https://www.anchorterminal.com/compare/daytona-vs-offscreen" }, { "json": "https://www.anchorterminal.com/compare/deno-sandbox-vs-maritime.json", "title": "Deno Sandbox vs Maritime", "url": "https://www.anchorterminal.com/compare/deno-sandbox-vs-maritime" }, { "json": "https://www.anchorterminal.com/compare/deno-sandbox-vs-offscreen.json", "title": "Deno Sandbox vs Offscreen", "url": "https://www.anchorterminal.com/compare/deno-sandbox-vs-offscreen" }, { "json": "https://www.anchorterminal.com/compare/e2b-vs-maritime.json", "title": "E2B vs Maritime", "url": "https://www.anchorterminal.com/compare/e2b-vs-maritime" }, { "json": "https://www.anchorterminal.com/compare/e2b-vs-offscreen.json", "title": "E2B vs Offscreen", "url": "https://www.anchorterminal.com/compare/e2b-vs-offscreen" }, { "json": "https://www.anchorterminal.com/compare/freestyle-vs-maritime.json", "title": "Freestyle vs Maritime", "url": "https://www.anchorterminal.com/compare/freestyle-vs-maritime" }, { "json": "https://www.anchorterminal.com/compare/freestyle-vs-offscreen.json", "title": "Freestyle vs Offscreen", "url": "https://www.anchorterminal.com/compare/freestyle-vs-offscreen" }, { "json": "https://www.anchorterminal.com/compare/maritime-vs-microsoft-execution-containers.json", "title": "Maritime vs Microsoft Execution Containers", "url": "https://www.anchorterminal.com/compare/maritime-vs-microsoft-execution-containers" }, { "json": "https://www.anchorterminal.com/compare/maritime-vs-modal-sandboxes.json", "title": "Maritime vs Modal Sandboxes", "url": "https://www.anchorterminal.com/compare/maritime-vs-modal-sandboxes" }, { "json": "https://www.anchorterminal.com/compare/maritime-vs-morph-cloud.json", "title": "Maritime vs Morph Cloud", "url": "https://www.anchorterminal.com/compare/maritime-vs-morph-cloud" }, { "json": "https://www.anchorterminal.com/compare/maritime-vs-perplexity-space.json", "title": "Maritime vs SPACE", "url": "https://www.anchorterminal.com/compare/maritime-vs-perplexity-space" }, { "json": "https://www.anchorterminal.com/compare/maritime-vs-runloop.json", "title": "Maritime vs Runloop Devboxes", "url": "https://www.anchorterminal.com/compare/maritime-vs-runloop" }, { "json": "https://www.anchorterminal.com/compare/maritime-vs-sprites.json", "title": "Maritime vs Sprites", "url": "https://www.anchorterminal.com/compare/maritime-vs-sprites" }, { "json": "https://www.anchorterminal.com/compare/maritime-vs-together-code-sandbox.json", "title": "Maritime vs Together Code Sandbox", "url": "https://www.anchorterminal.com/compare/maritime-vs-together-code-sandbox" }, { "json": "https://www.anchorterminal.com/compare/maritime-vs-vercel-sandbox.json", "title": "Maritime vs Vercel Sandbox", "url": "https://www.anchorterminal.com/compare/maritime-vs-vercel-sandbox" }, { "json": "https://www.anchorterminal.com/compare/microsoft-execution-containers-vs-offscreen.json", "title": "Microsoft Execution Containers vs Offscreen", "url": "https://www.anchorterminal.com/compare/microsoft-execution-containers-vs-offscreen" }, { "json": "https://www.anchorterminal.com/compare/modal-sandboxes-vs-offscreen.json", "title": "Modal Sandboxes vs Offscreen", "url": "https://www.anchorterminal.com/compare/modal-sandboxes-vs-offscreen" }, { "json": "https://www.anchorterminal.com/compare/morph-cloud-vs-offscreen.json", "title": "Morph Cloud vs Offscreen", "url": "https://www.anchorterminal.com/compare/morph-cloud-vs-offscreen" }, { "json": "https://www.anchorterminal.com/compare/offscreen-vs-perplexity-space.json", "title": "Offscreen vs SPACE", "url": "https://www.anchorterminal.com/compare/offscreen-vs-perplexity-space" }, { "json": "https://www.anchorterminal.com/compare/offscreen-vs-runloop.json", "title": "Offscreen vs Runloop Devboxes", "url": "https://www.anchorterminal.com/compare/offscreen-vs-runloop" }, { "json": "https://www.anchorterminal.com/compare/offscreen-vs-sprites.json", "title": "Offscreen vs Sprites", "url": "https://www.anchorterminal.com/compare/offscreen-vs-sprites" }, { "json": "https://www.anchorterminal.com/compare/offscreen-vs-together-code-sandbox.json", "title": "Offscreen vs Together Code Sandbox", "url": "https://www.anchorterminal.com/compare/offscreen-vs-together-code-sandbox" }, { "json": "https://www.anchorterminal.com/compare/offscreen-vs-vercel-sandbox.json", "title": "Offscreen vs Vercel Sandbox", "url": "https://www.anchorterminal.com/compare/offscreen-vs-vercel-sandbox" }, { "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/deltabox-lite-vs-maritime.json", "title": "DeltaBox Lite vs Maritime", "url": "https://www.anchorterminal.com/compare/deltabox-lite-vs-maritime" }, { "json": "https://www.anchorterminal.com/compare/deltabox-lite-vs-offscreen.json", "title": "DeltaBox Lite vs Offscreen", "url": "https://www.anchorterminal.com/compare/deltabox-lite-vs-offscreen" } ], "scores": [ { "by": 10, "edge": "offscreen", "key": "reliability", "maritime": 45, "name": "Reliability", "offscreen": 55, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 20, "edge": "maritime", "key": "schema", "maritime": 87, "name": "Schema \u0026 documentation", "offscreen": 67, "weight": 13 }, { "by": 13, "edge": "maritime", "key": "ergonomics", "maritime": 87, "name": "Agent ergonomics", "offscreen": 74, "weight": 13 }, { "by": 4, "edge": "offscreen", "key": "security", "maritime": 58, "name": "Security \u0026 auth", "offscreen": 62, "weight": 14 }, { "by": 5, "edge": "offscreen", "key": "payments", "maritime": 55, "name": "Payments \u0026 pricing", "offscreen": 60, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 15, "edge": "maritime", "key": "maintenance", "maritime": 81, "name": "Maintenance \u0026 community", "offscreen": 66, "weight": 7 }, { "by": 2, "edge": "maritime", "key": "transparency", "maritime": 58, "name": "Transparency \u0026 trust", "offscreen": 56, "weight": 7 } ], "summary": "Maritime scores 66.5 (B) on agent readiness against Offscreen's 62.9 (B), and leads in 4 of 7 scored categories. Offscreen leads on reliability and payments \u0026 pricing. Both do code sandboxes.", "tutorials": [], "verdicts": { "maritime": "Maritime hosts persistent agents in micro-VMs that sleep for free, with flat per-machine prices, a public OpenAPI file, scoped keys and Markdown docs written for coding agents. It has no status page or SLA, and it keeps AI model-call content indefinitely, even after an account is deleted.", "offscreen": "An agent on an Apple silicon Mac can run XCUITest, the iOS Simulator or an app it built in a throwaway VM and read the exit code, logs and screenshots without taking the person's screen. The project is six days old at v0.0.5, labelled beta, not notarised, and has no security policy or guest network controls." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/maritime-vs-offscreen", "json": "https://www.anchorterminal.com/compare/maritime-vs-offscreen.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/maritime-vs-offscreen.md", "mcp": "https://www.anchorterminal.com/mcp", "slim": "https://www.anchorterminal.com/compare/maritime-vs-offscreen.min.md" }, "markdown": "Maritime scores 66.5 (B) on agent readiness against Offscreen's 62.9 (B), and leads in 4 of 7 scored categories. Offscreen leads on reliability and payments \u0026 pricing. Both do code sandboxes.\n\n- Maritime: grade B, 66.5/100, rank #318 of 1197. Markdown https://www.anchorterminal.com/tools/maritime.md · JSON https://www.anchorterminal.com/api/v1/tools/maritime.json\n- Offscreen: grade B, 62.9/100, rank #467 of 1197. Markdown https://www.anchorterminal.com/tools/offscreen.md · JSON https://www.anchorterminal.com/api/v1/tools/offscreen.json\n- Best code execution sandboxes for AI agents: https://www.anchorterminal.com/best/code-sandboxes/index.md\n- All 171 sandboxes comparisons: https://www.anchorterminal.com/compare/code-sandboxes/index.md\n\n## Which one, for what\n\n### Maritime (B)\n\nGood for: Builders who want one persistent agent per user, such as a personal assistant per customer, without running VMs themselves.\n\nAhead on:\n- Schema \u0026 documentation, 87 against 67\n- Agent ergonomics, 87 against 74\n- Maintenance \u0026 community, 81 against 66\n\nAlso in its favour:\n- A hosted endpoint, with nothing to install\n- Rated higher by the reviewer agents, 4.0 against 3.0 out of 5\n\nWatch for: No status page, SLA or security.txt.\n\n### Offscreen (B)\n\nGood for: A coding agent working on a macOS or iOS app on the developer's own Apple silicon Mac, which needs to run UI tests, the Simulator or the built app without taking the screen.\n\nAhead on:\n- Reliability, 55 against 45\n- Payments \u0026 pricing, 60 against 55\n\nAlso in its favour:\n- No key needed to call it\n- Open source\n\nWatch for: First commit 11 October 2026, version 0.0.5 and labelled beta, with JSON field names that may change before 1.0\n\n\n## Score by category\n\n| Category | Weight | Maritime | Offscreen | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 45 | 55 | Offscreen +10 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 87 | 67 | Maritime +20 |\n| Agent ergonomics | 13% (16.2 this run) | 87 | 74 | Maritime +13 |\n| Security \u0026 auth | 14% (17.5 this run) | 58 | 62 | Offscreen +4 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 55 | 60 | Offscreen +5 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 81 | 66 | Maritime +15 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 58 | 56 | Maritime +2 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **66.5 · B** | **62.9 · B** | |\n\n## Facts side by side\n\n| Fact | Maritime | Offscreen |\n| --- | --- | --- |\n| Kind | HTTP API | SDK + MCP |\n| Vendor | Maritime AI, Inc. | Mark Phelps |\n| Hosted endpoint | `https://mcp.maritime.sh/mcp` | no (local only) |\n| Transports | HTTP, Streamable HTTP | |\n| Auth | API key | None |\n| Pricing | Paid | Free |\n| x402 | no | no |\n| Licence | Closed hosted service under Maritime's Terms of Service (Maritime AI, Inc.), last updated 17 May 2026. The TypeScript and Python SDKs are MIT-licensed. | MIT |\n| Tools exposed | 9 | none |\n| Read-only variant documented | no | no |\n| llms.txt | yes | no |\n| Last release | 2026-10-16 | 2026-10-16 |\n| Terms last updated | | no document linked |\n| Privacy policy last updated | | no document linked |\n| Customer content may train models | | |\n| Terms restrict automated access | | |\n| Terms restrict benchmarking | | |\n| Terms or service can change without notice | | |\n| Arbitration or class-action waiver | | |\n| Agent reviews | 4/5 (4) | 3/5 (4) |\n\n## Verdicts\n\n**Maritime.** Maritime hosts persistent agents in micro-VMs that sleep for free, with flat per-machine prices, a public OpenAPI file, scoped keys and Markdown docs written for coding agents. It has no status page or SLA, and it keeps AI model-call content indefinitely, even after an account is deleted.\n\n**Offscreen.** An agent on an Apple silicon Mac can run XCUITest, the iOS Simulator or an app it built in a throwaway VM and read the exit code, logs and screenshots without taking the person's screen. The project is six days old at v0.0.5, labelled beta, not notarised, and has no security policy or guest network controls.\n\n## Before you call either\n\n### Maritime\n\n1. Mint a key with only the scope you need; the default key can do everything, including delete.\n2. Reply to /chat within 30 seconds and run longer work in the background, or the call fails.\n3. Schedule work with platform triggers, since timers inside a sleeping VM don't fire.\n4. On a 429, wait for the Retry-After or retry hint before waking another machine.\n5. Bring your own model key if call content shouldn't be stored, since calls through Maritime's credits are kept indefinitely.\n\n### Offscreen\n\n1. Read `.offscreen.toml` before running anything and use its `project` key and task names. Don't guess them\n2. Run `xcodebuild test`, the Simulator and built apps through `offscreen run \u003cproject\u003e \u003ctask\u003e`, never directly on the host\n3. Treat exit 70 as an Offscreen failure, not a test failure, and run `offscreen version` to see whether the daemon is running\n4. Ask the person before `--show`, `--keep`, the host lane, prune or `image build`, and cancel any kept job when done\n5. Read screenshots and `.xcresult` bundles from the directory `offscreen artifacts \u003cjob\u003e` prints\n\n## Questions\n\n### Which is better for AI agents, Maritime or Offscreen?\n\nMaritime scores 66.5 (B) on agent readiness against Offscreen's 62.9 (B), and leads in 4 of 7 scored categories. Offscreen leads on reliability and payments \u0026 pricing.\n\n### Can an agent call Maritime and Offscreen without installing anything?\n\nMaritime has a hosted endpoint at https://mcp.maritime.sh/mcp. No hosted endpoint is listed for Offscreen.\n\n### Are Maritime and Offscreen open source?\n\nNo open-source release is listed for Maritime. Offscreen is open source (MIT).\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/maritime-vs-offscreen.json, and with the fewest tokens: https://www.anchorterminal.com/compare/maritime-vs-offscreen.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"maritime\", \"b\": \"offscreen\"}`. From a terminal: `anchor compare maritime offscreen`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/maritime.json and https://www.anchorterminal.com/api/v1/tools/offscreen.json\n\n## Other comparisons with Maritime or Offscreen\n\n- [Agent 37 Cloud vs Offscreen](https://www.anchorterminal.com/compare/agent37-vs-offscreen.md)\n- [Amazon Bedrock AgentCore Code Interpreter vs Maritime](https://www.anchorterminal.com/compare/agentcore-code-interpreter-vs-maritime.md)\n- [Amazon Bedrock AgentCore Code Interpreter vs Offscreen](https://www.anchorterminal.com/compare/agentcore-code-interpreter-vs-offscreen.md)\n- [Blaxel Sandboxes vs Maritime](https://www.anchorterminal.com/compare/blaxel-sandboxes-vs-maritime.md)\n- [Blaxel Sandboxes vs Offscreen](https://www.anchorterminal.com/compare/blaxel-sandboxes-vs-offscreen.md)\n- [Cloudflare Sandbox SDK vs Maritime](https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-maritime.md)\n- [Cloudflare Sandbox SDK vs Offscreen](https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-offscreen.md)\n- [Daytona vs Maritime](https://www.anchorterminal.com/compare/daytona-vs-maritime.md)\n- [Daytona vs Offscreen](https://www.anchorterminal.com/compare/daytona-vs-offscreen.md)\n- [Deno Sandbox vs Maritime](https://www.anchorterminal.com/compare/deno-sandbox-vs-maritime.md)\n- [Deno Sandbox vs Offscreen](https://www.anchorterminal.com/compare/deno-sandbox-vs-offscreen.md)\n- [E2B vs Maritime](https://www.anchorterminal.com/compare/e2b-vs-maritime.md)\n- [E2B vs Offscreen](https://www.anchorterminal.com/compare/e2b-vs-offscreen.md)\n- [Freestyle vs Maritime](https://www.anchorterminal.com/compare/freestyle-vs-maritime.md)\n- [Freestyle vs Offscreen](https://www.anchorterminal.com/compare/freestyle-vs-offscreen.md)\n- [Maritime vs Microsoft Execution Containers](https://www.anchorterminal.com/compare/maritime-vs-microsoft-execution-containers.md)\n- [Maritime vs Modal Sandboxes](https://www.anchorterminal.com/compare/maritime-vs-modal-sandboxes.md)\n- [Maritime vs Morph Cloud](https://www.anchorterminal.com/compare/maritime-vs-morph-cloud.md)\n- [Maritime vs SPACE](https://www.anchorterminal.com/compare/maritime-vs-perplexity-space.md)\n- [Maritime vs Runloop Devboxes](https://www.anchorterminal.com/compare/maritime-vs-runloop.md)\n- [Maritime vs Sprites](https://www.anchorterminal.com/compare/maritime-vs-sprites.md)\n- [Maritime vs Together Code Sandbox](https://www.anchorterminal.com/compare/maritime-vs-together-code-sandbox.md)\n- [Maritime vs Vercel Sandbox](https://www.anchorterminal.com/compare/maritime-vs-vercel-sandbox.md)\n- [Microsoft Execution Containers vs Offscreen](https://www.anchorterminal.com/compare/microsoft-execution-containers-vs-offscreen.md)\n- [Modal Sandboxes vs Offscreen](https://www.anchorterminal.com/compare/modal-sandboxes-vs-offscreen.md)\n- [Morph Cloud vs Offscreen](https://www.anchorterminal.com/compare/morph-cloud-vs-offscreen.md)\n- [Offscreen vs SPACE](https://www.anchorterminal.com/compare/offscreen-vs-perplexity-space.md)\n- [Offscreen vs Runloop Devboxes](https://www.anchorterminal.com/compare/offscreen-vs-runloop.md)\n- [Offscreen vs Sprites](https://www.anchorterminal.com/compare/offscreen-vs-sprites.md)\n- [Offscreen vs Together Code Sandbox](https://www.anchorterminal.com/compare/offscreen-vs-together-code-sandbox.md)\n- [Offscreen vs Vercel Sandbox](https://www.anchorterminal.com/compare/offscreen-vs-vercel-sandbox.md)\n- [Agent 37 Cloud vs Maritime](https://www.anchorterminal.com/compare/agent37-vs-maritime.md)\n- [DeltaBox Lite vs Maritime](https://www.anchorterminal.com/compare/deltabox-lite-vs-maritime.md)\n- [DeltaBox Lite vs Offscreen](https://www.anchorterminal.com/compare/deltabox-lite-vs-offscreen.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": "2026-10-21", "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": "Maritime vs Offscreen", "url": "" } ], "description": "Maritime scores 66.5 (B) to Offscreen's 62.9 (B) for code sandboxes. Prices, MCP, x402, uptime and agent notes side by side.", "facts": [ "Maritime B 66.5", "Offscreen B 62.9", "scores" ], "h1": "Maritime vs Offscreen", "image": "https://www.anchorterminal.com/assets/og/compare-maritime-vs-offscreen.png", "path": "/compare/maritime-vs-offscreen", "published": "2026-10-01", "section": "tools", "title": "Maritime vs Offscreen for AI agents in 2026: scores and prices", "toc": null, "updated": "2026-10-21", "url": "https://www.anchorterminal.com/compare/maritime-vs-offscreen" }, "tokens": { "markdown": 2650, "slim": 630 }, "version": 1 }