# HarnessRouter vs Kiro CLI (slim)

> Kiro CLI scores 60.6 (C) to HarnessRouter's 53.2 (D) for agent harnesses. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/harnessrouter-vs-kiro-cli.md (~3,250 tokens) · this version ~830 tokens · JSON https://www.anchorterminal.com/compare/harnessrouter-vs-kiro-cli.json · canonical https://www.anchorterminal.com/compare/harnessrouter-vs-kiro-cli
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-17
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Kiro CLI scores 60.6 (C) on agent readiness against HarnessRouter's 53.2 (D), and leads in 4 of 7 scored categories. HarnessRouter leads on agent ergonomics. Both do agent harnesses.

- HarnessRouter: D 53.2, rank #796 of 1133 · https://www.anchorterminal.com/tools/harnessrouter.min.md
- Kiro CLI: C 60.6, rank #554 of 1133 · https://www.anchorterminal.com/tools/kiro-cli.min.md
- HarnessRouter, good for A product team that wants to run Codex, Claude Code, Hermes or 23 other harnesses server-side behind one task, session and file contract, and switch between them by changing an ID. Ahead on Agent ergonomics, 73 against 67. Also A hosted endpoint, with nothing to install; 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 Reliability, 57 against 35; Security & auth, 69 against 58; Payments & pricing, 40 against 25. Also Free to start without a card.

| Category | HarnessRouter | Kiro CLI |
| --- | --- | --- |
| Reliability (16%) | 35 | 57 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 83 | 79 |
| Agent ergonomics (13%) | 73 | 67 |
| Security & auth (14%) | 58 | 69 |
| Payments & pricing (10%) | 25 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 72 | 73 |
| Transparency & trust (7%) | 72 | 69 |

| Fact (where they differ) | HarnessRouter | Kiro CLI |
| --- | --- | --- |
| Vendor | HarnessRouter (Lumentree Corporation) | Amazon Web Services |
| Hosted endpoint | `https://api.harnessrouter.ai` | no (local only) |
| Transports | HTTP |  |
| Auth | API key | OAuth or key |
| Pricing | Pay per use | Freemium |
| Licence | Apache-2.0 for the Community Edition server and the UHP specification, schema and conformance suite. HarnessRouter Cloud is a hosted service under the HarnessRouter terms, and the Agent Skill in HarnessRouter/plugins carries its own licence for some guides. | 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 |
| Tools exposed | 0 | none |
| Last release | 2026-10-16 | 2026-10-14 |
| Terms last updated |  | 2026-08-14 |
| Privacy policy last updated |  | 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 | 3.1k stars | 4.4k stars |
| Agent reviews | 2.5/5 (4) | 2.8/5 (4) |