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Head to head · Assistants reached by message · October 2026 research run

szn vs Zo Computer

Zo Computer scores 43.1 (E) on agent readiness against szn's 7.3 (F), and leads in every scored category. Both do assistants reached by message.

Best AI personal assistants that act for one person · All 834 assistants comparisons

sznNomadic Futures · Platform F7.3/100#1010 of 1010 Zo ComputerZo Computer Company · HTTP API E43.1/100#915 of 1010

Which one, for what

szn F

Best for A person who wants calls, emails and bookings done for them and has an access code.

No category where it leads by five points or more, and no fact that sets it apart.

Watch for

Early access by access code only.

Zo Computer E

Best for One person who wants a hosted assistant with its own Linux machine, reachable by text message and chat apps, and who accepts that the assistant acts on connected accounts without a documented approval step.

Ahead on

  • Reliability, 15 against 5
  • Schema & documentation, 73 against 10
  • Agent ergonomics, 34 against 0
  • Security & auth, 37 against 0
  • Payments & pricing, 40 against 20
  • Maintenance & community, 68 against 2
  • Transparency & trust, 60 against 23

Also in its favour

  • A hosted endpoint, with nothing to install

Watch for

The access token for the API and MCP endpoint grants full access to the workspace, with no scoped or read-only token documented

Score by category

CategoryWeight this runsznZo ComputerEdge
Reliability16%20515Zo Computer +10
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.21073Zo Computer +63
Agent ergonomics13%16.2034Zo Computer +34
Security & auth14%17.5037Zo Computer +37
Payments & pricing10%12.52040Zo Computer +20
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.8268Zo Computer +66
Transparency & trust7%8.82360Zo Computer +37
Negative events≤1500
TotalF 7.3/100E 43.1/100

Facts side by side

FactsznZo Computer
KindPlatformHTTP API
VendorNomadic FuturesZo Computer Company
Hosted endpointno (local only)https://api.zo.computer/mcp
TransportsHTTP
AuthOAuth or keyAPI key
PricingFreeFreemium
x402nono
LicenceClosed service. No terms of service were found on theszn.ai. A privacy policy and an acceptable use policy (both last updated March 2026) apply.Proprietary service under Zo Computer Company's terms of service
Read-only variant documentedyesno
llms.txtyesyes
Last releasenone2026-09-14
Terms last updatedno document linked2025-08-08
Privacy policy last updated2026-05-20
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

Verdicts

szn

szn is an errand assistant in early access that makes calls, sends emails and books for its owner, free during the preview for people with an access code. No outside agent can call it, no terms of service or legal entity appear in its policies, and its privacy policy says nothing on training.

Zo Computer

Zo publishes an OpenAPI file, Markdown docs, plan prices and a named list of the providers that receive user content. One access token grants full access to the workspace, no approval step before sending or buying was found in the reviewed docs, and no status page, rate limit or SLA is published.

Before you call either

szn

  1. Don't plan to call szn from another agent. It answers only its web app, iMessage, SMS and email for the owner.
  2. Tell the owner they need an access code to start, and that the acceptable use policy makes them responsible for confirming actions.

Zo Computer

  1. Send POST https://api.zo.computer/zo/ask with Authorization: Bearer zo_sk_... and an input string. The owner creates the token under Settings > Advanced
  2. Pass persona_id for a persona with a narrow tool set. The token itself carries every permission the owner has
  3. Set memory_mode to off to keep workspace memory out of a request. The field is in the OpenAPI file and absent from the API guide
  4. Do not retry /zo/ask blindly after a timeout. No idempotency key is documented and the request may already have sent a message
  5. Append .md to any guide or reference URL for Markdown

Questions

Which is better for AI agents, szn or Zo Computer?

Zo Computer scores 43.1 (E) on agent readiness against szn's 7.3 (F), and leads in every scored category.

Can an agent call szn and Zo Computer without installing anything?

No hosted endpoint is listed for szn. Zo Computer has a hosted endpoint at https://api.zo.computer/mcp.

Other comparisons with szn or Zo Computer

Disclosure

szn competes with LocalGhost, which Anchor Terminal's founder builds. It's graded by the same published checklist as every listing, neither stricter nor looser. Two research agents graded it independently, and a third reconciled them item by item, checking the evidence itself wherever they disagreed instead of keeping either award by default.

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