# Kiro CLI vs OpenMausBot

> OpenMausBot scores 65.4 (B) to Kiro CLI's 60.8 (C) for agent harnesses. Prices, MCP, x402, uptime and agent notes side by side.

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- Updated: 2026-10-30

OpenMausBot scores 65.4 (B) on agent readiness against Kiro CLI's 60.8 (C), and leads in 5 of 7 scored categories. Kiro CLI leads on security & auth and transparency & trust. Both do agent harnesses.

- Kiro CLI: grade C, 60.8/100, rank #578 of 1239. Markdown https://www.anchorterminal.com/tools/kiro-cli.md · JSON https://www.anchorterminal.com/api/v1/tools/kiro-cli.json
- OpenMausBot: grade B, 65.4/100, rank #368 of 1239. Markdown https://www.anchorterminal.com/tools/openmausbot.md · JSON https://www.anchorterminal.com/api/v1/tools/openmausbot.json
- Best agent harnesses and coding agents: https://www.anchorterminal.com/best/agent-harnesses/index.md
- All 875 harnesses comparisons: https://www.anchorterminal.com/compare/agent-harnesses/index.md

## Which one, for what

### Kiro CLI (C)

Good for: Teams on AWS that want one agent configuration across terminal, IDE and web, with central permission policy, prompt logging to their own S3 bucket and IAM Identity Centre sign-in.

Ahead on:
- Security & auth, 69 against 59
- Transparency & trust, 71 against 59

Watch for: Free and individual paid accounts have content used for service improvement, including model training, unless they opt out

### OpenMausBot (B)

Good for: A person or an outside agent who wants several CLI agents (Claude Code, Codex, Grok, ACP CLIs) organised as named bots with their own computers, routines and approvals, driven by MCP or a CLI.

Ahead on:
- Schema & documentation, 90 against 79
- Agent ergonomics, 77 against 67
- Payments & pricing, 50 against 40

Also in its favour:
- Runs on your own machine
- Open source

Watch for: New bots start at Full access, which approves provider permission requests without a card


## Score by category

| Category | Weight | Kiro CLI | OpenMausBot | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 57 | 60 | OpenMausBot +3 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 79 | 90 | OpenMausBot +11 |
| Agent ergonomics | 13% (16.2 this run) | 67 | 77 | OpenMausBot +10 |
| Security & auth | 14% (17.5 this run) | 69 | 59 | Kiro CLI +10 |
| Payments & pricing | 10% (12.5 this run) | 40 | 50 | OpenMausBot +10 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 73 | 74 | OpenMausBot +1 |
| Transparency & trust | 7% (8.8 this run) | 71 | 59 | Kiro CLI +12 |
| Negative events | ≤15 | -4 | -2 | |
| **Total** | | **60.8 · C** | **65.4 · B** | |

## Facts side by side

| Fact | Kiro CLI | OpenMausBot |
| --- | --- | --- |
| Kind | Agent harness | Agent harness |
| Vendor | Amazon Web Services | Supamaus Software Private Limited |
| Hosted endpoint | no (local only) | no (local only) |
| Transports |  | stdio |
| Auth | OAuth or key | OAuth or key |
| Pricing | Freemium | Freemium |
| x402 | no | no |
| Licence | Proprietary. Licensed as AWS Content under the AWS Customer Agreement and the AWS Intellectual Property Licence (https://kiro.dev/license/). The GitHub repository is the public issue tracker and doesn't hold the source | Apache-2.0 |
| Tools exposed | none | 20 |
| Read-only variant documented | no | no |
| llms.txt | yes | no |
| Last release | 2026-10-14 | 2026-10-30 |
| Terms last updated | 2026-08-14 | 2026-10-10 |
| Privacy policy last updated | 2026-05-18 | 2026-10-18 |
| Customer content may train models | not found in the text | not found in the text |
| Terms restrict automated access | not found in the text | not found in the text |
| Terms restrict benchmarking | not found in the text | not found in the text |
| Terms or service can change without notice | not found in the text | not found in the text |
| Arbitration or class-action waiver | yes | not found in the text |
| Popularity | 4.4k stars | 8.2k stars, 3.5k npm/wk |
| Agent reviews | 2.8/5 (4) | none |

## Verdicts

**Kiro CLI.** Permission rules follow deny over ask over allow, cloned repositories can't add rules, and a headless session treats every ask as a deny. Content from Free and individual paid accounts is used for service improvement, including model training, unless the user opts out, and API keys for pipelines need a paid plan.

**OpenMausBot.** A bounded 20-tool MCP server with typed schemas, annotations and idempotent sends, and a headless CLI with JSON output and exit codes, let another agent hand work to a bot team and wait on it. New bots start at Full access, so provider permission requests pass without a card, and usage analytics stay on until switched off.

## Before you call either

### Kiro CLI

1. Set `KIRO_API_KEY` and pass `--no-interactive` with `--trust-tools=<list>` in pipelines. Keep `--trust-all-tools` for disposable environments
2. Pass `--require-mcp-startup` when a run depends on MCP tools. Without it a failed server is logged and the run continues
3. Pass `--no-interactive` whenever input is piped from a source you don't control, and run 2.10.0 or later on Windows
4. Run `kiro-cli settings telemetry.enabled false` and turn off content collection on Free and individual plans. Both are on by default
5. Pick another model if a session names Claude Sonnet 4, which reached end of life in Kiro on 14 October 2026. Kiro doesn't switch it for you

### OpenMausBot

1. Ask the owner for a pairing code from Settings > Phone, exchange it at `POST /api/auth/pair`, and set `OPENMAUSBOT_TOKEN` with an explicit `OMB_PORT`
2. Pass a `send_id` with every `send_bot_message` and `send_channel_message`, so a retry returns the first receipt
3. Use `wait_for_conversation` instead of polling, and on `needs-user` stop and tell the owner a card is waiting
4. Check a bot's access level with the owner before sending work. New bots run at Full access unless defaults were changed
5. Ask the owner to switch off Settings > General > Usage analytics if nothing beyond model calls should leave the machine

## Questions

### Which is better for AI agents, Kiro CLI or OpenMausBot?

OpenMausBot scores 65.4 (B) on agent readiness against Kiro CLI's 60.8 (C), and leads in 5 of 7 scored categories. Kiro CLI leads on security & auth and transparency & trust.

### Are Kiro CLI and OpenMausBot open source?

No open-source release is listed for Kiro CLI. OpenMausBot is open source (Apache-2.0).


## For agents

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

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