# Caddy vs Zo Computer

> Zo Computer scores 43.1 (E) to Caddy's 16.7 (F) for proactive personal assistants. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/caddy-app-vs-zo-computer
- Markdown: https://www.anchorterminal.com/compare/caddy-app-vs-zo-computer.md (~3,500 tokens)
- Slim: https://www.anchorterminal.com/compare/caddy-app-vs-zo-computer.min.md (~730 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/caddy-app-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
- Updated: 2026-10-13

Zo Computer scores 43.1 (E) on agent readiness against Caddy's 16.7 (F), and leads in every scored category. Both do proactive personal assistants.

- Caddy: grade F, 16.7/100, rank #996 of 1010. Markdown https://www.anchorterminal.com/tools/caddy-app.md · JSON https://www.anchorterminal.com/api/v1/tools/caddy-app.json
- Zo Computer: grade E, 43.1/100, rank #915 of 1010. 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 834 assistants comparisons: https://www.anchorterminal.com/compare/personal-assistants/index.md

## Which one, for what

### Caddy (F)

Good for: People who want a free assistant in iMessage or RCS that watches mail, calendars and work tools and asks before acting.

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

### 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:
- Reliability, 15 against 10
- Schema & documentation, 73 against 10
- Agent ergonomics, 34 against 0
- Security & auth, 37 against 0
- Payments & pricing, 40 against 30
- Maintenance & community, 68 against 55
- Transparency & trust, 60 against 52

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 | Caddy | Zo Computer | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 10 | 15 | Zo Computer +5 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 10 | 73 | Zo Computer +63 |
| Agent ergonomics | 13% (16.2 this run) | 0 | 34 | Zo Computer +34 |
| Security & auth | 14% (17.5 this run) | 0 | 37 | Zo Computer +37 |
| Payments & pricing | 10% (12.5 this run) | 30 | 40 | Zo Computer +10 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 55 | 68 | Zo Computer +13 |
| Transparency & trust | 7% (8.8 this run) | 52 | 60 | Zo Computer +8 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **16.7 · F** | **43.1 · E** | |

## Facts side by side

| Fact | Caddy | Zo Computer |
| --- | --- | --- |
| Kind | Platform | HTTP API |
| Vendor | Caddy Technologies Inc. | Zo Computer Company |
| Hosted endpoint | no (local only) | `https://api.zo.computer/mcp` |
| Transports |  | HTTP |
| Auth | OAuth or key | API key |
| Pricing | Free | Freemium |
| x402 | no | no |
| Licence | Closed service under Caddy's Terms of Service (Caddy Technologies Inc., last updated 27 April 2026). | Proprietary service under Zo Computer Company's terms of service |
| Read-only variant documented | yes | no |
| llms.txt | yes | yes |
| Last release | 2026-10-13 | 2026-09-14 |
| Terms last updated |  | 2025-08-08 |
| Privacy policy last updated |  | 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 |

## Verdicts

**Caddy.** Caddy is a free iMessage and RCS assistant in public beta that watches connected mail, calendars and work apps and asks before sending email or changing data. No outside agent can call it, and no status page, changelog or security contact was found, though its iOS app ships every week or two.

**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

### Caddy

1. Don't plan to call Caddy from another agent. It answers the owner's text messages, Siri and group chats it's added to.
2. Expect Caddy to ask the owner before it sends email or creates an invite.

### 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, Caddy or Zo Computer?

Zo Computer scores 43.1 (E) on agent readiness against Caddy's 16.7 (F), and leads in every scored category.

### Can an agent call Caddy and Zo Computer without installing anything?

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


## For agents

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

## Other comparisons with Caddy or Zo Computer

- [asaply vs Caddy](https://www.anchorterminal.com/compare/asaply-vs-caddy-app.md)
- [asaply vs Zo Computer](https://www.anchorterminal.com/compare/asaply-vs-zo-computer.md)
- [Asmi vs Caddy](https://www.anchorterminal.com/compare/asmi-vs-caddy-app.md)
- [Asmi vs Zo Computer](https://www.anchorterminal.com/compare/asmi-vs-zo-computer.md)
- [Boba vs Caddy](https://www.anchorterminal.com/compare/boba-vs-caddy-app.md)
- [Boba vs Zo Computer](https://www.anchorterminal.com/compare/boba-vs-zo-computer.md)
- [Brea vs Caddy](https://www.anchorterminal.com/compare/brea-vs-caddy-app.md)
- [Brea vs Zo Computer](https://www.anchorterminal.com/compare/brea-vs-zo-computer.md)
- [Caddy vs Del](https://www.anchorterminal.com/compare/caddy-app-vs-del.md)
- [Caddy vs HireAlpha](https://www.anchorterminal.com/compare/caddy-app-vs-hirealpha.md)
- [Caddy vs OpenInstinct](https://www.anchorterminal.com/compare/caddy-app-vs-openinstinct.md)
- [Caddy vs Orbits](https://www.anchorterminal.com/compare/caddy-app-vs-orbits.md)
- [Caddy vs Orchid](https://www.anchorterminal.com/compare/caddy-app-vs-orchid-ai.md)
- [Caddy vs szn](https://www.anchorterminal.com/compare/caddy-app-vs-szn.md)
- [Caddy vs Tab](https://www.anchorterminal.com/compare/caddy-app-vs-tab-bot.md)
- [Caddy vs Zapia](https://www.anchorterminal.com/compare/caddy-app-vs-zapia.md)
- [Del vs Zo Computer](https://www.anchorterminal.com/compare/del-vs-zo-computer.md)
- [HireAlpha vs Zo Computer](https://www.anchorterminal.com/compare/hirealpha-vs-zo-computer.md)
- [OpenInstinct vs Zo Computer](https://www.anchorterminal.com/compare/openinstinct-vs-zo-computer.md)
- [Orbits vs Zo Computer](https://www.anchorterminal.com/compare/orbits-vs-zo-computer.md)
- [Orchid vs Zo Computer](https://www.anchorterminal.com/compare/orchid-ai-vs-zo-computer.md)
- [szn vs Zo Computer](https://www.anchorterminal.com/compare/szn-vs-zo-computer.md)
- [Tab vs Zo Computer](https://www.anchorterminal.com/compare/tab-bot-vs-zo-computer.md)
- [Zapia vs Zo Computer](https://www.anchorterminal.com/compare/zapia-vs-zo-computer.md)
- [AstrBot vs Caddy](https://www.anchorterminal.com/compare/astrbot-vs-caddy-app.md)
- [AstrBot vs Zo Computer](https://www.anchorterminal.com/compare/astrbot-vs-zo-computer.md)
- [Boski vs Caddy](https://www.anchorterminal.com/compare/boski-vs-caddy-app.md)
- [Boski vs Zo Computer](https://www.anchorterminal.com/compare/boski-vs-zo-computer.md)
- [Caddy vs CowAgent](https://www.anchorterminal.com/compare/caddy-app-vs-cowagent.md)
- [Caddy vs folk](https://www.anchorterminal.com/compare/caddy-app-vs-folk-nozomio.md)
- [Caddy vs GAIA](https://www.anchorterminal.com/compare/caddy-app-vs-gaia.md)
- [Caddy vs Gemini Spark](https://www.anchorterminal.com/compare/caddy-app-vs-gemini-spark.md)
- [Caddy vs Grok Bot](https://www.anchorterminal.com/compare/caddy-app-vs-grok-bot.md)
- [Caddy vs Haven](https://www.anchorterminal.com/compare/caddy-app-vs-haven.md)
- [Caddy vs Hermes Agent](https://www.anchorterminal.com/compare/caddy-app-vs-hermes-agent.md)
- [Caddy vs Instinct](https://www.anchorterminal.com/compare/caddy-app-vs-instinct.md)
- [Caddy vs IronClaw](https://www.anchorterminal.com/compare/caddy-app-vs-ironclaw.md)
- [Caddy vs Leon](https://www.anchorterminal.com/compare/caddy-app-vs-leon.md)
- [Caddy vs Lindy](https://www.anchorterminal.com/compare/caddy-app-vs-lindy.md)
- [Caddy vs nanobot](https://www.anchorterminal.com/compare/caddy-app-vs-nanobot.md)
- [Caddy vs NanoClaw](https://www.anchorterminal.com/compare/caddy-app-vs-nanoclaw.md)
- [Caddy vs Dots](https://www.anchorterminal.com/compare/caddy-app-vs-openai-dots.md)
- [Caddy vs OpenClaw](https://www.anchorterminal.com/compare/caddy-app-vs-openclaw.md)
- [Caddy vs PicoClaw](https://www.anchorterminal.com/compare/caddy-app-vs-picoclaw.md)
- [Caddy vs Poke](https://www.anchorterminal.com/compare/caddy-app-vs-poke.md)
- [Caddy vs QwenPaw](https://www.anchorterminal.com/compare/caddy-app-vs-qwenpaw.md)
- [Caddy vs Town](https://www.anchorterminal.com/compare/caddy-app-vs-town.md)
- [Caddy vs ZeroClaw](https://www.anchorterminal.com/compare/caddy-app-vs-zeroclaw.md)
- [CowAgent vs Zo Computer](https://www.anchorterminal.com/compare/cowagent-vs-zo-computer.md)
- [folk vs Zo Computer](https://www.anchorterminal.com/compare/folk-nozomio-vs-zo-computer.md)
- [GAIA vs Zo Computer](https://www.anchorterminal.com/compare/gaia-vs-zo-computer.md)
- [Gemini Spark vs Zo Computer](https://www.anchorterminal.com/compare/gemini-spark-vs-zo-computer.md)
- [Grok Bot vs Zo Computer](https://www.anchorterminal.com/compare/grok-bot-vs-zo-computer.md)
- [Haven vs Zo Computer](https://www.anchorterminal.com/compare/haven-vs-zo-computer.md)
- [Hermes Agent vs Zo Computer](https://www.anchorterminal.com/compare/hermes-agent-vs-zo-computer.md)
- [Instinct vs Zo Computer](https://www.anchorterminal.com/compare/instinct-vs-zo-computer.md)
- [IronClaw vs Zo Computer](https://www.anchorterminal.com/compare/ironclaw-vs-zo-computer.md)
- [Leon vs Zo Computer](https://www.anchorterminal.com/compare/leon-vs-zo-computer.md)
- [Lindy vs Zo Computer](https://www.anchorterminal.com/compare/lindy-vs-zo-computer.md)
- [nanobot vs Zo Computer](https://www.anchorterminal.com/compare/nanobot-vs-zo-computer.md)
- [NanoClaw vs Zo Computer](https://www.anchorterminal.com/compare/nanoclaw-vs-zo-computer.md)
- [Dots vs Zo Computer](https://www.anchorterminal.com/compare/openai-dots-vs-zo-computer.md)
- [OpenClaw vs Zo Computer](https://www.anchorterminal.com/compare/openclaw-vs-zo-computer.md)
- [PicoClaw vs Zo Computer](https://www.anchorterminal.com/compare/picoclaw-vs-zo-computer.md)
- [Poke vs Zo Computer](https://www.anchorterminal.com/compare/poke-vs-zo-computer.md)
- [QwenPaw vs Zo Computer](https://www.anchorterminal.com/compare/qwenpaw-vs-zo-computer.md)
- [Town vs Zo Computer](https://www.anchorterminal.com/compare/town-vs-zo-computer.md)
- [ZeroClaw vs Zo Computer](https://www.anchorterminal.com/compare/zeroclaw-vs-zo-computer.md)
- [Caddy vs Natura tinyNature](https://www.anchorterminal.com/compare/caddy-app-vs-natura.md)
- [Caddy vs Pally](https://www.anchorterminal.com/compare/caddy-app-vs-pally.md)
- [Caddy vs Tomo](https://www.anchorterminal.com/compare/caddy-app-vs-tomo.md)
- [Caddy vs Wajo (Fo)](https://www.anchorterminal.com/compare/caddy-app-vs-wajo.md)
- [Natura tinyNature vs Zo Computer](https://www.anchorterminal.com/compare/natura-vs-zo-computer.md)
- [Pally vs Zo Computer](https://www.anchorterminal.com/compare/pally-vs-zo-computer.md)
- [Tomo vs Zo Computer](https://www.anchorterminal.com/compare/tomo-vs-zo-computer.md)
- [Wajo (Fo) vs Zo Computer](https://www.anchorterminal.com/compare/wajo-vs-zo-computer.md)
- [Caddy vs Talorys](https://www.anchorterminal.com/compare/caddy-app-vs-talorys.md)
- [Talorys vs Zo Computer](https://www.anchorterminal.com/compare/talorys-vs-zo-computer.md)

## Disclosure

- Caddy 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.