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

Brea vs Zo Computer

Zo Computer scores 43.1 (E) on agent readiness against Brea's 12.9 (F), and leads in 6 of 7 scored categories. Both do assistants reached by message.

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

BreaBrea AI LLC · Platform F12.9/100#1001 of 1010 Zo ComputerZo Computer Company · HTTP API E43.1/100#915 of 1010

Which one, for what

Brea F

Best for An iPhone user who wants an assistant across many apps and websites with per-action approval.

Also in its favour

  • Free to start without a card

Watch for

No API, MCP server or A2A endpoint for an outside agent.

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 10
  • Agent ergonomics, 34 against 0
  • Security & auth, 37 against 7
  • Payments & pricing, 40 against 20
  • Maintenance & community, 68 against 4
  • Transparency & trust, 60 against 48

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 runBreaZo ComputerEdge
Reliability16%201515even
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.21073Zo Computer +63
Agent ergonomics13%16.2034Zo Computer +34
Security & auth14%17.5737Zo Computer +30
Payments & pricing10%12.52040Zo Computer +20
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.8468Zo Computer +64
Transparency & trust7%8.84860Zo Computer +12
Negative events≤1500
TotalF 12.9/100E 43.1/100

Facts side by side

FactBreaZo Computer
KindPlatformHTTP API
VendorBrea AI LLCZo Computer Company
Hosted endpointno (local only)https://api.zo.computer/mcp
TransportsHTTP
AuthOAuth or keyAPI key
PricingFreemiumFreemium
x402nono
LicenceClosed service under Brea's terms (Brea AI LLC, last updated 2 July 2026).Proprietary service under Zo Computer Company's terms of service
Read-only variant documentednono
llms.txtyesyes
Last releasenone2026-09-14
Terms last updated2025-08-08
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

Brea

Brea is an iMessage assistant with a free plan that needs no card, approval by reply before it sends, deletes or pays, and one-time Link cards for purchases. No outside agent can call it, paid prices sit inside the app, and no changelog or subprocessor list was found.

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

Brea

  1. Don't plan to call Brea from another agent. It answers only the owner's iMessage thread.
  2. Tell the owner that replying ALWAYS stops Brea asking again for that action.

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, Brea or Zo Computer?

Zo Computer scores 43.1 (E) on agent readiness against Brea's 12.9 (F), and leads in 6 of 7 scored categories.

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

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

Other comparisons with Brea or Zo Computer

Disclosure

Brea 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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