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Head to head · Sandbox persist · October 2026 research run

Agent 37 Cloud vs Morph Cloud

Morph Cloud scores 50.8 (D) on agent readiness against Agent 37 Cloud's 46.1 (D), and leads in 3 of 7 scored categories. Agent 37 Cloud leads on security & auth, maintenance & community and transparency & trust. Both do sandbox persist.

Agent 37 CloudAgent 37 Inc. · HTTP API D46.1/100#564 of 629 Morph CloudMorph Labs · HTTP API D50.8/100#515 of 629

Which one, for what

Agent 37 Cloud D

Good for A product that gives each end user a long-lived agent machine that is idle most of the day and needs a harness preinstalled.

Ahead on

  • Security & auth, 49 against 39
  • Maintenance & community, 65 against 58
  • Transparency & trust, 56 against 25

Watch for

No status page was found. status.agent37.com returns 404, and the terms promise no uptime level

Morph Cloud D

Good for Agents that need to checkpoint and fork a running machine with memory intact, for parallel attempts, evaluations or reinforcement learning rollouts.

Ahead on

  • Reliability, 63 against 27
  • Schema & documentation, 72 against 57

Watch for

No terms of service, privacy policy, DPA or subprocessor list found on morph.so or cloud.morph.so

Score by category

CategoryWeight this runAgent 37 CloudMorph CloudEdge
Reliability16%202763Morph Cloud +36
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.25772Morph Cloud +15
Agent ergonomics13%16.26061Morph Cloud +1
Security & auth14%17.54939Agent 37 Cloud +10
Payments & pricing10%12.52020even
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.86558Agent 37 Cloud +7
Transparency & trust7%8.85625Agent 37 Cloud +31
Negative events≤1500
Total46.1 · D50.8 · D

Facts side by side

FactAgent 37 CloudMorph Cloud
KindHTTP APIHTTP API
VendorAgent 37 Inc.Morph Labs
Hosted endpointhttps://api.agent37.com/v1https://cloud.morph.so/api
TransportsHTTPHTTP
AuthAPI keyAPI key
PricingPay per usePay per use
x402nono
LicenceProprietary service under Agent 37's terms of service. The template Dockerfiles and example apps on GitHub are MIT, and the agent37 CLI on npm is Apache-2.0Proprietary hosted service with no published terms found. The Python and TypeScript SDKs are Apache-2.0
Read-only variant documentednono
llms.txtyesyes
Last release2026-10-052026-09-01
Terms last updated2026-08-04no document linked
Privacy policy last updated2026-09-01no document linked
Customer content may train modelsnot found in the text
Terms restrict automated accessnot found in the text
Terms restrict benchmarkingnot found in the text
Terms or service can change without noticenot found in the text
Arbitration or class-action waivernot found in the text
Popularity74 npm/wk3 stars, 339 npm/wk, 13k PyPI/wk

Verdicts

Agent 37 Cloud

Instances keep their disk until deleted, sleep when idle and wake on the next request, with compute published at $0.80 a vCPU-month and stable error codes on both APIs. The product launched on 29 September 2026. No status page, OpenAPI file, SDK library or published rate limits were found, and the starter credit needs a card.

Morph Cloud

Pause and snapshot keep memory and running processes, and one call branches an instance into several copies. A public OpenAPI file covers 69 operations. No terms of service, privacy policy or security page was found, the free plan includes no compute credit, and the changelog holds one entry from November 2024.

Before you call either

Agent 37 Cloud

  1. Send the key as Authorization: Bearer to api.agent37.com and as X-Agent37-Key to the instance URL. The Bearer form on instance URLs is deprecated
  2. Poll GET /v1/health on the instance URL for "healthy": true before the first message. status: running only means the machine is up
  3. Check whether error is a string before reading error.code. Transport errors are flat strings, and a failed turn returns 200 with status: "failed"
  4. Don't blindly retry an exec that timed out after 13 minutes. The command keeps running, so a retry starts a second copy
  5. Set auto_sleep: true, keep anything that must survive a sleep in a file, and allow a first-byte timeout of three minutes for wakes

Morph Cloud

  1. Set ttl_seconds and ttl_action when starting an instance. Nothing in the docs stops an instance with no TTL from billing MCUs
  2. Pass auth_mode: api_key when exposing an HTTP service. The default is none, which makes the URL public
  3. Enable wake_on_ssh before calling exec on an instance that may be paused. There is no separate exec wake setting
  4. Use /api/instance/list and /api/snapshot/list with page and limit (default 50, maximum 1,000). The plain list routes return everything
  5. On a 503 from snapshot, branch, pause or reboot, wait for the Retry-After value before repeating the call

Questions

Which is better for AI agents, Agent 37 Cloud or Morph Cloud?

Morph Cloud scores 50.8 (D) on agent readiness against Agent 37 Cloud's 46.1 (D), and leads in 3 of 7 scored categories. Agent 37 Cloud leads on security & auth, maintenance & community and transparency & trust.

Do Agent 37 Cloud and Morph Cloud need an API key?

Both need an API key.

Can an agent call Agent 37 Cloud and Morph Cloud without installing anything?

Yes. Agent 37 Cloud has a hosted endpoint at https://api.agent37.com/v1 and Morph Cloud at https://cloud.morph.so/api.

Other comparisons with Agent 37 Cloud or Morph Cloud

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