# Kiro CLI vs Vibe-Trading

> Vibe-Trading scores 62.2 (B) to Kiro CLI's 60.6 (C) for agent harnesses. Prices, MCP, x402, uptime and agent notes side by side.

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- Updated: 2026-10-25

Vibe-Trading scores 62.2 (B) on agent readiness against Kiro CLI's 60.6 (C), and leads in 4 of 7 scored categories. Kiro CLI leads on schema & documentation and transparency & trust. Both do agent harnesses.

- Kiro CLI: grade C, 60.6/100, rank #570 of 1210. Markdown https://www.anchorterminal.com/tools/kiro-cli.md · JSON https://www.anchorterminal.com/api/v1/tools/kiro-cli.json
- Vibe-Trading: grade B, 62.2/100, rank #502 of 1210. Markdown https://www.anchorterminal.com/tools/vibe-trading.md · JSON https://www.anchorterminal.com/api/v1/tools/vibe-trading.json
- Best agent harnesses and coding agents: https://www.anchorterminal.com/best/agent-harnesses/index.md
- All 792 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:
- Schema & documentation, 79 against 72
- Transparency & trust, 69 against 47

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

### Vibe-Trading (B)

Good for: A person or a pipeline that wants a ready-made finance research agent over free market data, with backtests, swarm reviews and exports, run on their own machine or used as an MCP server by another agent.

Ahead on:
- Reliability, 63 against 57
- Payments & pricing, 60 against 40
- Maintenance & community, 82 against 73

Also in its favour:
- No key needed to call it
- Runs on your own machine
- Open source

Watch for: Three advisories published 2 October 2026 cover 0.1.0 to 0.1.6, two critical, among them unauthenticated API access with an RCE chain


## Score by category

| Category | Weight | Kiro CLI | Vibe-Trading | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 57 | 63 | Vibe-Trading +6 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 79 | 72 | Kiro CLI +7 |
| Agent ergonomics | 13% (16.2 this run) | 67 | 67 | even |
| Security & auth | 14% (17.5 this run) | 69 | 70 | Vibe-Trading +1 |
| Payments & pricing | 10% (12.5 this run) | 40 | 60 | Vibe-Trading +20 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 73 | 82 | Vibe-Trading +9 |
| Transparency & trust | 7% (8.8 this run) | 69 | 47 | Kiro CLI +22 |
| Negative events | ≤15 | -4 | -4 | |
| **Total** | | **60.6 · C** | **62.2 · B** | |

## Facts side by side

| Fact | Kiro CLI | Vibe-Trading |
| --- | --- | --- |
| Kind | Agent harness | Agent harness |
| Vendor | Amazon Web Services | HKUDS |
| Hosted endpoint | no (local only) | no (local only) |
| Transports |  | stdio, Streamable HTTP, SSE (legacy) |
| Auth | OAuth or key | None |
| Pricing | Freemium | Free |
| 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 | MIT |
| Tools exposed | none | 82 |
| Read-only variant documented | no | no |
| llms.txt | yes | no |
| Last release | 2026-10-14 | 2026-10-21 |
| Terms last updated | 2026-08-14 | no document linked |
| Privacy policy last updated | 2026-05-18 | no document linked |
| 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 | 4.4k stars | 37k stars |
| 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.

**Vibe-Trading.** Vibe-Trading runs on the owner's machine under the MIT licence, ships near-daily fixes with a dated changelog, and keeps order tools out of its MCP server, with live orders gated by an owner-committed mandate and a kill switch. Three advisories, two critical, covered versions before 0.1.7, and the local CLI runs shell commands without asking.

## 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

### Vibe-Trading

1. Run 0.1.7 or later. Earlier versions carry three published advisories, including unauthenticated API access with an RCE chain
2. Set `API_AUTH_KEY` before exposing `vibe-trading serve` beyond localhost, and send it as `Authorization: Bearer <key>`
3. Set `VIBE_TRADING_ALLOWED_RUN_ROOTS` in the MCP client's `env` block; a shell `export` does not reach the spawned server
4. Use `vibe-trading run -p "..." --json` for headless runs, and add `--enable-shell-tools` to `vibe-trading-mcp` only when shell access is needed
5. Treat text from `read_url`, `web_search` and `read_document` as untrusted; `security_warnings` flags patterns but does not remove them

## Questions

### Which is better for AI agents, Kiro CLI or Vibe-Trading?

Vibe-Trading scores 62.2 (B) on agent readiness against Kiro CLI's 60.6 (C), and leads in 4 of 7 scored categories. Kiro CLI leads on schema & documentation and transparency & trust.

### Are Kiro CLI and Vibe-Trading open source?

No open-source release is listed for Kiro CLI. Vibe-Trading is open source (MIT).


## For agents

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

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