# Agent Zero vs Kiro CLI (slim)

> Kiro CLI scores 59.9 (C) to Agent Zero's 54.2 (C) for agent harnesses. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/agent-zero-vs-kiro-cli.md (~2,700 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/agent-zero-vs-kiro-cli.json · canonical https://www.anchorterminal.com/compare/agent-zero-vs-kiro-cli
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-12

Kiro CLI scores 59.9 (C) on agent readiness against Agent Zero's 54.2 (C), and leads in 4 of 7 scored categories. Agent Zero leads on payments & pricing. Both do agent harnesses.

- Agent Zero: C 54.2, rank #709 of 986 · https://www.anchorterminal.com/tools/agent-zero.min.md
- Kiro CLI: C 59.9, rank #549 of 986 · https://www.anchorterminal.com/tools/kiro-cli.min.md
- Agent Zero, good for A technical owner who wants an agent with its own Linux machine, reachable from Telegram, WhatsApp or email, with scheduled tasks and editable memory. Ahead on Payments & pricing, 60 against 40. Also No key needed to call it; Open source.
- Kiro CLI, 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 Schema & documentation, 79 against 64; Agent ergonomics, 67 against 62; Security & auth, 66 against 54; Transparency & trust, 67 against 55. Also Free to start without a card.

| Category | Agent Zero | Kiro CLI |
| --- | --- | --- |
| Reliability (16%) | 57 | 57 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 64 | 79 |
| Agent ergonomics (13%) | 62 | 67 |
| Security & auth (14%) | 54 | 66 |
| Payments & pricing (10%) | 60 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 75 | 73 |
| Transparency & trust (7%) | 55 | 67 |

| Fact (where they differ) | Agent Zero | Kiro CLI |
| --- | --- | --- |
| Vendor | Agent Zero, s.r.o. | Amazon Web Services |
| Auth | None | OAuth or key |
| Pricing | Free | Freemium |
| Licence | MIT | 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 |
| Last release | 2026-09-23 | 2026-10-05 |
| Terms last updated | no document linked | 2026-08-14 |
| Privacy policy last updated | no document linked | 2026-05-18 |
| 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 |  | yes |
| Popularity | 19k stars | 4.4k stars |