# Atticus vs Zo Computer

> Zo Computer and Atticus score within a point of each other for assistants that remember you, 43.1 and 42.9 out of 100. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/atticus-vs-zo-computer
- Markdown: https://www.anchorterminal.com/compare/atticus-vs-zo-computer.md (~3,550 tokens)
- Slim: https://www.anchorterminal.com/compare/atticus-vs-zo-computer.min.md (~730 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/atticus-vs-zo-computer.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Licence: CC BY 4.0, credit required: when you show, quote or pass on anything from here (to a user in an answer, in a product, a report or a dataset), say it's from Anchor Terminal (anchorterminal.com) and link the page or API address you took it from. Reviews also credit their author.
- Updated: 2026-10-15

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.

- Atticus: grade E, 42.9/100, rank #974 of 1094. Markdown https://www.anchorterminal.com/tools/atticus.md · JSON https://www.anchorterminal.com/api/v1/tools/atticus.json
- Zo Computer: grade E, 43.1/100, rank #970 of 1094. Markdown https://www.anchorterminal.com/tools/zo-computer.md · JSON https://www.anchorterminal.com/api/v1/tools/zo-computer.json
- Best AI personal assistants that act for one person: https://www.anchorterminal.com/best/personal-assistants/index.md
- All 875 assistants comparisons: https://www.anchorterminal.com/compare/personal-assistants/index.md

## Which one, for what

### Atticus (E)

Good 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)

Good 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

| Category | Weight | Atticus | Zo Computer | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 68 | 15 | Atticus +53 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 15 | 73 | Zo Computer +58 |
| Agent ergonomics | 13% (16.2 this run) | 9 | 34 | Zo Computer +25 |
| Security & auth | 14% (17.5 this run) | 49 | 37 | Atticus +12 |
| Payments & pricing | 10% (12.5 this run) | 60 | 40 | Atticus +20 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 51 | 68 | Zo Computer +17 |
| Transparency & trust | 7% (8.8 this run) | 56 | 60 | Zo Computer +4 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **42.9 · E** | **43.1 · E** | |

## Facts side by side

| Fact | Atticus | Zo Computer |
| --- | --- | --- |
| Kind | Platform | HTTP API |
| Vendor | SaarthurR (Saarth Ranka) | Zo Computer Company |
| Hosted endpoint | no (local only) | `https://api.zo.computer/mcp` |
| Transports |  | HTTP |
| Auth | None | API key |
| Pricing | Your plan | Freemium |
| x402 | no | no |
| Licence | MIT | Proprietary service under Zo Computer Company's terms of service |
| Read-only variant documented | no | no |
| llms.txt | no | yes |
| Last release | 2026-10-14 | 2026-09-14 |
| Terms last updated | no document linked | 2025-08-08 |
| Privacy policy last updated | no document linked | 2026-05-20 |
| 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 | 163 stars | none |

## 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.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/atticus-vs-zo-computer.json, and with the fewest tokens: https://www.anchorterminal.com/compare/atticus-vs-zo-computer.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "atticus", "b": "zo-computer"}`. From a terminal: `anchor compare atticus zo-computer`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/atticus.json and https://www.anchorterminal.com/api/v1/tools/zo-computer.json

## Other comparisons with Atticus or Zo Computer

- [asaply vs Zo Computer](https://www.anchorterminal.com/compare/asaply-vs-zo-computer.md)
- [Asmi vs Zo Computer](https://www.anchorterminal.com/compare/asmi-vs-zo-computer.md)
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