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Head to head · Assistants that remember you · October 2026 research run

Atticus vs Zo Computer

Zo Computer and Atticus score within a point of each other on agent readiness, 43.1 (E) and 42.9 (E). Atticus leads on reliability, security & auth and payments & pricing. Both do assistants that remember you.

Best AI personal assistants that act for one person · All 875 assistants comparisons

AtticusSaarthurR (Saarth Ranka) · Platform E42.9/100#974 of 1094 Zo ComputerZo Computer Company · HTTP API E43.1/100#970 of 1094

Which one, for what

Atticus E

Best for A person on macOS 26 with a Claude Pro or Max plan who wants voice control of apps, windows, files and the browser.

Ahead on

  • Reliability, 68 against 15
  • Security & auth, 49 against 37
  • Payments & pricing, 60 against 40

Also in its favour

  • No key needed to call it
  • Free to start without a card
  • Open source

Watch for

No API, MCP server or documented command an outside agent can call

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

  • Schema & documentation, 73 against 15
  • Agent ergonomics, 34 against 9
  • Maintenance & community, 68 against 51

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 runAtticusZo ComputerEdge
Reliability16%206815Atticus +53
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.21573Zo Computer +58
Agent ergonomics13%16.2934Zo Computer +25
Security & auth14%17.54937Atticus +12
Payments & pricing10%12.56040Atticus +20
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.85168Zo Computer +17
Transparency & trust7%8.85660Zo Computer +4
Negative events≤1500
TotalE 42.9/100E 43.1/100

Facts side by side

FactAtticusZo Computer
KindPlatformHTTP API
VendorSaarthurR (Saarth Ranka)Zo Computer Company
Hosted endpointno (local only)https://api.zo.computer/mcp
TransportsHTTP
AuthNoneAPI key
PricingYour planFreemium
x402nono
LicenceMITProprietary service under Zo Computer Company's terms of service
Read-only variant documentednono
llms.txtnoyes
Last release2026-10-142026-09-14
Terms last updatedno document linked2025-08-08
Privacy policy last updatedno document linked2026-05-20
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
Popularity163 starsnone

Verdicts

Atticus

Atticus runs a person's Mac by voice on their existing Claude or Devin plan, with a sandboxed safe mode and a local log of every command. It has no API, MCP server or documented command for another agent, it is five days old, and it rebuilds itself from the main branch every six hours by default.

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

Atticus

  1. Don't plan to call Atticus from another agent. It takes requests only from its own shortcut and typing box
  2. If a user runs Atticus beside you, expect it to move windows and type into apps on the same Mac
  3. Point a user who wants pinned versions to Settings > About & Updates to turn off self-update

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, Atticus or Zo Computer?

Zo Computer and Atticus score within a point of each other on agent readiness, 43.1 (E) and 42.9 (E). Atticus leads on reliability, security & auth and payments & pricing.

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

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

Are Atticus and Zo Computer open source?

Atticus is open source (MIT). No open-source release is listed for Zo Computer.

Other comparisons with Atticus or Zo Computer

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