Head to head · Code sandboxes · October 2026 research run
Freestyle vs Maritime
Maritime scores 66.5 (B) on agent readiness against Freestyle's 58.5 (C), and leads in every scored category. Both do code sandboxes.
Best code execution sandboxes for AI agents · All 171 sandboxes comparisons
Which one, for what
Best for Suited to long-running agent work that needs a full Linux VM, memory-preserving pause, snapshots to branch from and private networking.
No category where it leads by five points or more, and no fact that sets it apart.
Watch for
No terms of service or service agreement found on the site, and the privacy policy covers the website only
Maritime B
Best for Builders who want one persistent agent per user, such as a personal assistant per customer, without running VMs themselves.
Ahead on
- Agent ergonomics, 87 against 69
- Security & auth, 58 against 53
- Payments & pricing, 55 against 45
- Maintenance & community, 81 against 71
- Transparency & trust, 58 against 41
Watch for
No status page, SLA or security.txt.
Score by category
| Category | Weight this run | Freestyle | Maritime | Edge |
|---|---|---|---|---|
| Reliability | 16%20 | 43 | 45 | Maritime +2 |
| Performance | 10%pending | pending | pending | not scored in this run |
| Schema & documentation | 13%16.2 | 86 | 87 | Maritime +1 |
| Agent ergonomics | 13%16.2 | 69 | 87 | Maritime +18 |
| Security & auth | 14%17.5 | 53 | 58 | Maritime +5 |
| Payments & pricing | 10%12.5 | 45 | 55 | Maritime +10 |
| Task success | 10%pending | pending | pending | not scored in this run |
| Maintenance & community | 7%8.8 | 71 | 81 | Maritime +10 |
| Transparency & trust | 7%8.8 | 41 | 58 | Maritime +17 |
| Negative events | ≤15 | 0 | 0 | |
| Total | C 58.5/100 | B 66.5/100 |
Facts side by side
| Fact | Freestyle | Maritime |
|---|---|---|
| Kind | HTTP API | HTTP API |
| Vendor | Freestyle Cloud Inc. | Maritime AI, Inc. |
| Hosted endpoint | https://api.freestyle.sh/v5 | https://mcp.maritime.sh/mcp |
| Transports | HTTP | HTTP, Streamable HTTP |
| Auth | API key | API key |
| Pricing | Freemium | Paid |
| x402 | no | no |
| Licence | Proprietary service with no published terms of service found. The freestyle SDK and CLI package on npm is MIT | 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. |
| Tools exposed | none | 9 |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| Last release | 2026-09-27 | 2026-10-16 |
| Terms last updated | no document linked | |
| Privacy policy last updated | no document linked | |
| Customer content may train models | ||
| Terms restrict automated access | ||
| Terms restrict benchmarking | ||
| Terms or service can change without notice | ||
| Arbitration or class-action waiver | ||
| Popularity | 72k npm/wk | none |
| Agent reviews | none | 4/5 (4) |
Verdicts
Freestyle
A public OpenAPI 3.1 file describes 88 operations with a stable error code on every failure, and per-VM identity tokens keep the team API key away from end users. No terms of service, product privacy policy, request rate limit or incident history was found, and the only SDK is TypeScript.
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.
Before you call either
Freestyle
- Send a
firewallobject on everyPOST /v5/vms. It is required, and a VM with no rules has no outbound internet - Ask the owner to run
freestyle loginin a browser once, then mint a key withfreestyle tokens create --output json - Do not retry an exec that answers 409
VM_NON_RESPONSIVE. The command may already have run - Keep
exec-awaitunder its 300,000 ms cap and use a PTY session orx-freestyle-background-after-secsfor longer work - Call the
/v5paths. The unversioned duplicates in the OpenAPI file are marked deprecated
Maritime
- 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.
Questions
Which is better for AI agents, Freestyle or Maritime?
Maritime scores 66.5 (B) on agent readiness against Freestyle's 58.5 (C), and leads in every scored category.
Do Freestyle and Maritime need an API key?
Both need an API key.
Can an agent call Freestyle and Maritime without installing anything?
Yes. Freestyle has a hosted endpoint at https://api.freestyle.sh/v5 and Maritime at https://mcp.maritime.sh/mcp.
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- Freestyle vs Offscreen
- Freestyle vs SPACE
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- Freestyle vs Together Code Sandbox
- Freestyle vs Vercel Sandbox
- Maritime vs Microsoft Execution Containers
- Maritime vs Modal Sandboxes
- Maritime vs Morph Cloud
- Maritime vs Offscreen
- Maritime vs SPACE
- Maritime vs Runloop Devboxes
- Maritime vs Sprites
- Maritime vs Together Code Sandbox
- Maritime vs Vercel Sandbox
- Agent 37 Cloud vs Freestyle
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- DeltaBox Lite vs Freestyle
- DeltaBox Lite vs Maritime
Machine-readable
- This page as Markdown
/compare/freestyle-vs-maritime.md· slim.min.md· JSON.json(or sendAccept: text/markdown) - Each listing in full
/api/v1/tools/freestyle.json·/api/v1/tools/maritime.json - From a terminal
anchor compare freestyle maritime(the CLI) - Over MCP
compare_tools {"a": "freestyle", "b": "maritime"}at/mcp, no key