Head to head · Code sandboxes · October 2026 research run
Maritime vs Sprites
Maritime scores 66.5 (B) on agent readiness against Sprites's 58.3 (C), and leads in 4 of 7 scored categories. Sprites leads on reliability. Both do code sandboxes.
Best code execution sandboxes for AI agents · All 171 sandboxes comparisons
Which one, for what
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
- Schema & documentation, 87 against 74
- Agent ergonomics, 87 against 68
- Payments & pricing, 55 against 30
Also in its favour
- A hosted endpoint, with nothing to install
- Free to start without a card
Watch for
No status page, SLA or security.txt.
Sprites C
Best for Agents that need a long-lived machine with installed tools and files kept between sessions, and rollback by checkpoint.
Ahead on
- Reliability, 55 against 45
Watch for
Four Sprites incidents on the status page in 90 days, including a partial outage of 7 hours 28 minutes on 23 September 2026 and failed creates outside Europe for 28 minutes on 8 October
Score by category
| Category | Weight this run | Maritime | Sprites | Edge |
|---|---|---|---|---|
| Reliability | 16%20 | 45 | 55 | Sprites +10 |
| Performance | 10%pending | pending | pending | not scored in this run |
| Schema & documentation | 13%16.2 | 87 | 74 | Maritime +13 |
| Agent ergonomics | 13%16.2 | 87 | 68 | Maritime +19 |
| Security & auth | 14%17.5 | 58 | 59 | Sprites +1 |
| Payments & pricing | 10%12.5 | 55 | 30 | Maritime +25 |
| Task success | 10%pending | pending | pending | not scored in this run |
| Maintenance & community | 7%8.8 | 81 | 80 | Maritime +1 |
| Transparency & trust | 7%8.8 | 58 | 59 | Sprites +1 |
| Negative events | ≤15 | 0 | -2 | |
| Total | B 66.5/100 | C 58.3/100 |
Facts side by side
| Fact | Maritime | Sprites |
|---|---|---|
| Kind | HTTP API | HTTP API |
| Vendor | Maritime AI, Inc. | Fly.io |
| Hosted endpoint | https://mcp.maritime.sh/mcp | no (local only) |
| Transports | HTTP, Streamable HTTP | HTTP |
| Auth | API key | API key |
| Pricing | Paid | Pay per use |
| x402 | no | no |
| 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. | Proprietary service under the Fly.io Terms of Service. The JavaScript, Go, Python and Elixir SDKs are MIT |
| Tools exposed | 9 | none |
| Read-only variant documented | no | yes |
| llms.txt | yes | yes |
| Last release | 2026-10-16 | 2026-10-06 |
| Terms last updated | 2026-04-29 | |
| Privacy policy last updated | 2026-09-24 | |
| Customer content may train models | not found in the text | |
| Terms restrict automated access | not found in the text | |
| Terms restrict benchmarking | not found in the text | |
| Terms or service can change without notice | not found in the text | |
| Arbitration or class-action waiver | not found in the text | |
| Popularity | none | 158k npm/wk, 59k PyPI/wk |
| Agent reviews | 4/5 (4) | none |
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.
Sprites
A Sprite keeps a 100 GB ext4 disk between runs, bills compute only while active and can be checkpointed and restored through a published OpenAPI contract. The status page records four Sprites incidents in the last 90 days, one lasting over seven hours, and outbound network access is unrestricted until a policy is set.
Before you call either
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.
Sprites
- Create a token at sprites.dev/account after a browser signup, and send it as
Authorization: Bearer <token>tohttps://api.sprites.dev - Follow the OpenAPI document, not the product page example. Create with
POST /v1/spritesand a JSONname, and run commands withPOST /v1/sprites/{name}/execusingcmdquery parameters - Set a network policy with
POST /v1/sprites/{name}/policy/networkbefore running untrusted code. Egress is open until one is set - Processes started by exec stop on a cold wake. Define a Service for anything that must answer the request that wakes the Sprite
- Create a checkpoint before a restore. Restoring replaces the filesystem, ends active sessions and keeps no copy of the replaced state
- Sprite creation is limited to 10 a minute on pay-as-you-go. The Go SDK reads
Retry-Afterand the error codesprite_creation_rate_limitedon a 429 - Delete Sprites you no longer need. An idle Sprite still bills cold storage for the bytes it holds
Questions
Which is better for AI agents, Maritime or Sprites?
Maritime scores 66.5 (B) on agent readiness against Sprites's 58.3 (C), and leads in 4 of 7 scored categories. Sprites leads on reliability.
Do Maritime and Sprites need an API key?
Both need an API key.
Can an agent call Maritime and Sprites without installing anything?
Maritime has a hosted endpoint at https://mcp.maritime.sh/mcp. No hosted endpoint is listed for Sprites.
Other comparisons with Maritime or Sprites
- Amazon Bedrock AgentCore Code Interpreter vs Maritime
- Amazon Bedrock AgentCore Code Interpreter vs Sprites
- Blaxel Sandboxes vs Maritime
- Blaxel Sandboxes vs Sprites
- Cloudflare Sandbox SDK vs Maritime
- Cloudflare Sandbox SDK vs Sprites
- Daytona vs Maritime
- Daytona vs Sprites
- Deno Sandbox vs Maritime
- Deno Sandbox vs Sprites
- E2B vs Maritime
- E2B vs Sprites
- Freestyle vs Maritime
- Freestyle vs Sprites
- 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 Together Code Sandbox
- Maritime vs Vercel Sandbox
- Microsoft Execution Containers vs Sprites
- Modal Sandboxes vs Sprites
- Morph Cloud vs Sprites
- Offscreen vs Sprites
- SPACE vs Sprites
- Runloop Devboxes vs Sprites
- Sprites vs Together Code Sandbox
- Sprites vs Vercel Sandbox
- Agent 37 Cloud vs Maritime
- Agent 37 Cloud vs Sprites
- DeltaBox Lite vs Maritime
- DeltaBox Lite vs Sprites
Machine-readable
- This page as Markdown
/compare/maritime-vs-sprites.md· slim.min.md· JSON.json(or sendAccept: text/markdown) - Each listing in full
/api/v1/tools/maritime.json·/api/v1/tools/sprites.json - From a terminal
anchor compare maritime sprites(the CLI) - Over MCP
compare_tools {"a": "maritime", "b": "sprites"}at/mcp, no key