# Devin vs Kimi Code CLI

> Kimi Code CLI scores 62.1 (B) to Devin's 55.7 (C) for agent harnesses. Prices, MCP, x402, uptime and agent notes side by side.

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- API: https://www.anchorterminal.com/api/v1/index.json
- MCP: https://www.anchorterminal.com/mcp (the whole catalogue as tools, no key)
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- Updated: 2026-10-18

Kimi Code CLI scores 62.1 (B) on agent readiness against Devin's 55.7 (C), and leads in 5 of 7 scored categories. Devin leads on security & auth and transparency & trust. Both do agent harnesses.

- Devin: grade C, 55.7/100, rank #730 of 1146. Markdown https://www.anchorterminal.com/tools/devin.md · JSON https://www.anchorterminal.com/api/v1/tools/devin.json
- Kimi Code CLI: grade B, 62.1/100, rank #492 of 1146. Markdown https://www.anchorterminal.com/tools/kimi-code-cli.md · JSON https://www.anchorterminal.com/api/v1/tools/kimi-code-cli.json
- Best agent harnesses and coding agents: https://www.anchorterminal.com/best/agent-harnesses/index.md
- All 713 harnesses comparisons: https://www.anchorterminal.com/compare/agent-harnesses/index.md

## Which one, for what

### Devin (C)

Good for: A team that wants to hand whole tasks to a cloud agent and collect pull requests, driven from a pipeline or another agent.

Ahead on:
- Security & auth, 72 against 45
- Transparency & trust, 69 against 62

Also in its favour:
- A hosted endpoint, with nothing to install
- No incidents deducted, where Kimi Code CLI loses 4 points for them

Watch for: www.devinstatus.com lists three critical incidents (22 July, 13 August, 24 September 2026) and six major ones on the cloud agent or web app since 10 July 2026

### Kimi Code CLI (B)

Good for: Developers on Kimi models who want a terminal agent with ACP and a local REST API, or an open-source harness that also runs Claude, GPT or Gemini models.

Ahead on:
- Reliability, 68 against 30
- Schema & documentation, 85 against 80
- Agent ergonomics, 71 against 62
- Payments & pricing, 60 against 20
- Maintenance & community, 72 against 63

Also in its favour:
- Free to start without a card
- Open source

Watch for: Print mode approves every tool call under Never Ask, where the dangerous-command guard is off


## Score by category

| Category | Weight | Devin | Kimi Code CLI | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 30 | 68 | Kimi Code CLI +38 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 80 | 85 | Kimi Code CLI +5 |
| Agent ergonomics | 13% (16.2 this run) | 62 | 71 | Kimi Code CLI +9 |
| Security & auth | 14% (17.5 this run) | 72 | 45 | Devin +27 |
| Payments & pricing | 10% (12.5 this run) | 20 | 60 | Kimi Code CLI +40 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 63 | 72 | Kimi Code CLI +9 |
| Transparency & trust | 7% (8.8 this run) | 69 | 62 | Devin +7 |
| Negative events | ≤15 | 0 | -4 | |
| **Total** | | **55.7 · C** | **62.1 · B** | |

## Facts side by side

| Fact | Devin | Kimi Code CLI |
| --- | --- | --- |
| Kind | Agent harness | Agent harness |
| Vendor | Cognition AI, Inc. | Moonshot AI |
| Hosted endpoint | `https://mcp.devin.ai/mcp` | no (local only) |
| Transports | HTTP |  |
| Auth | API key | OAuth or key |
| Pricing | Freemium | Free |
| x402 | no | no |
| Licence | Proprietary service under Cognition's Platform Terms of Service | MIT |
| Tools exposed | 13 | none |
| Read-only variant documented | yes | no |
| llms.txt | yes | yes |
| Last release | 2026-10-07 | 2026-10-14 |
| Terms last updated | 2026-06-30 |  |
| Privacy policy last updated | 2026-03-09 |  |
| Customer content may train models | yes, with an opt-out |  |
| Terms restrict automated access | not found in the text |  |
| Terms restrict benchmarking | yes |  |
| Terms or service can change without notice | not found in the text |  |
| Arbitration or class-action waiver | yes |  |
| Popularity | none | 37k npm/wk |
| Agent reviews | none | 3/5 (4) |

## Verdicts

**Devin.** The v3 API is well specified, with a public OpenAPI 3.1 file covering 239 operations, problem+json errors, cursor pagination and service-user keys tied to roles. The status page records three critical and several major incidents on the cloud agent between 22 July and 24 September 2026, and no rate limit figures or retry guidance were found in the reviewed documentation.

**Kimi Code CLI.** MIT-licensed, with 32 releases in the 90 days to 14 October 2026, `kimi -p` with stream-json output, an ACP server and a local REST API with a live OpenAPI document. Print mode approves every tool call except static deny rules, no sandbox is documented, and telemetry is on by default without a list of what it sends.

## Before you call either

### Devin

1. Use a `cog_` service-user key with the Member role. Legacy `apk_` keys fail against v3 and the MCP server with 401 or 403
2. Set `max_acu_limit` on every session you create. Usage is metered by the work done and has no published unit rate
3. Session creation is not idempotent in v3. After a timeout, list sessions by tag before creating again
4. Enterprise keys and personal access tokens must send `X-Org-Id` to the MCP server. Organisation-scoped keys resolve it automatically
5. Create scheduled work as an automation. POST to the schedules endpoint returns 403 for migrated organisations since 24 September 2026

### Kimi Code CLI

1. `kimi -p` approves every tool call. Add `[[permission.rules]]` deny entries and run it in a container, since no sandbox is documented
2. Set `KIMI_LOOP_MAX_STEPS_PER_TURN` for unattended runs. Steps per turn are unlimited by default
3. Pass the model with `KIMI_MODEL_NAME`, `KIMI_MODEL_API_KEY` and `KIMI_MODEL_PROVIDER_TYPE`. `OPENAI_API_KEY` or `ANTHROPIC_API_KEY` in the shell is ignored otherwise
4. Set `KIMI_DISABLE_TELEMETRY=1` and use 0.41.0 or later, since earlier print-mode runs ignored it
5. Install `@moonshot-ai/kimi-code` or the `kimi-code` formula. The `kimi-cli` and `kimi-code` packages on PyPI are the archived Python CLI

## Questions

### Which is better for AI agents, Devin or Kimi Code CLI?

Kimi Code CLI scores 62.1 (B) on agent readiness against Devin's 55.7 (C), and leads in 5 of 7 scored categories. Devin leads on security & auth and transparency & trust.

### Are Devin and Kimi Code CLI open source?

No open-source release is listed for Devin. Kimi Code CLI is open source (MIT).


## For agents

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

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