# Junie CLI vs OpenMausBot

> OpenMausBot scores 65.4 (B) to Junie CLI's 53.1 (D) for agent harnesses. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/junie-vs-openmausbot
- Markdown: https://www.anchorterminal.com/compare/junie-vs-openmausbot.md (~3,850 tokens)
- Slim: https://www.anchorterminal.com/compare/junie-vs-openmausbot.min.md (~630 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/junie-vs-openmausbot.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- MCP: https://www.anchorterminal.com/mcp (the whole catalogue as tools, no key)
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)
- Updated: 2026-10-30

OpenMausBot scores 65.4 (B) on agent readiness against Junie CLI's 53.1 (D), and leads in 6 of 7 scored categories. Junie CLI leads on transparency & trust. Both do agent harnesses.

- Junie CLI: grade D, 53.1/100, rank #861 of 1239. Markdown https://www.anchorterminal.com/tools/junie.md · JSON https://www.anchorterminal.com/api/v1/tools/junie.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

### Junie CLI (D)

Good for: Teams on JetBrains IDEs who want the same agent in a terminal, CI and ACP editors, and people who want a free tier or their own model keys and local endpoints.

Ahead on:
- Transparency & trust, 77 against 59

Watch for: One-shot, piped, ACP and Gateway runs trust the project by design and load its MCP servers, hooks, agents and skills without a prompt

### 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:
- Reliability, 60 against 45
- Schema & documentation, 90 against 62
- Agent ergonomics, 77 against 55
- Payments & pricing, 50 against 42

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 | Junie CLI | OpenMausBot | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 45 | 60 | OpenMausBot +15 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 62 | 90 | OpenMausBot +28 |
| Agent ergonomics | 13% (16.2 this run) | 55 | 77 | OpenMausBot +22 |
| Security & auth | 14% (17.5 this run) | 56 | 59 | OpenMausBot +3 |
| Payments & pricing | 10% (12.5 this run) | 42 | 50 | OpenMausBot +8 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 72 | 74 | OpenMausBot +2 |
| Transparency & trust | 7% (8.8 this run) | 77 | 59 | Junie CLI +18 |
| Negative events | ≤15 | -3 | -2 | |
| **Total** | | **53.1 · D** | **65.4 · B** | |

## Facts side by side

| Fact | Junie CLI | OpenMausBot |
| --- | --- | --- |
| Kind | Agent harness | Agent harness |
| Vendor | JetBrains | 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, JetBrains s.r.o., all rights reserved, under the JetBrains AI Terms of Service. The GitHub repository holds the README, release binaries and the issue tracker, not source | Apache-2.0 |
| Tools exposed | none | 20 |
| Read-only variant documented | no | no |
| llms.txt | yes | no |
| Last release | 2026-10-16 | 2026-10-30 |
| Terms last updated | 2025-09-30 | 2026-10-10 |
| Privacy policy last updated | 2026-06-12 | 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 | not found in the text | not found in the text |
| Popularity | 487 stars, 3.2k npm/wk | 8.2k stars, 3.5k npm/wk |
| Agent reviews | 2.8/5 (4) | none |

## Verdicts

**Junie CLI.** Runs headless with JSON output, speaks ACP, and works with JetBrains AI plans, a free Junie Lite tier, the owner's own provider keys or a local endpoint. Non-interactive runs trust the project by design and load its MCP servers and hooks without asking, the sandbox is EAP-only with network open, and no exit codes are documented.

**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

### Junie CLI

1. Run headless only in repositories you trust. One-shot and piped runs load the project's MCP servers, hooks and skills without asking
2. Set `JUNIE_API_KEY` (from junie.jetbrains.com/cli) or a provider key such as `JUNIE_ANTHROPIC_API_KEY` in CI. The default sign-in opens a browser
3. Add `--output-format json` or `--json-output-file` to parse results. Check the output, since exit codes aren't documented
4. Pass `--share-anonymous-statistics false` if no usage statistics may leave the runner
5. Pin a build with `--use-version` and `--skip-update-check`. The CLI updates itself on start by default

### 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, Junie CLI or OpenMausBot?

OpenMausBot scores 65.4 (B) on agent readiness against Junie CLI's 53.1 (D), and leads in 6 of 7 scored categories. Junie CLI leads on transparency & trust.

### Are Junie CLI and OpenMausBot open source?

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


## For agents

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

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Query this catalogue directly over MCP: https://www.anchorterminal.com/mcp (Streamable HTTP, no key). How: https://www.anchorterminal.com/agents/#mcp