# OpenMausBot vs Parallax

> OpenMausBot scores 65.4 (B) to Parallax's 38.1 (E) for multi-agent orchestration. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/openmausbot-vs-parallax-agents
- Markdown: https://www.anchorterminal.com/compare/openmausbot-vs-parallax-agents.md (~3,800 tokens)
- Slim: https://www.anchorterminal.com/compare/openmausbot-vs-parallax-agents.min.md (~680 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/openmausbot-vs-parallax-agents.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 Parallax's 38.1 (E), and leads in every scored category. Both do multi-agent orchestration.

- 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
- Parallax: grade E, 38.1/100, rank #1133 of 1239. Markdown https://www.anchorterminal.com/tools/parallax-agents.md · JSON https://www.anchorterminal.com/api/v1/tools/parallax-agents.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

### 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 40
- Schema & documentation, 90 against 29
- Agent ergonomics, 77 against 42
- Security & auth, 59 against 43
- Payments & pricing, 50 against 30
- Maintenance & community, 74 against 56
- Transparency & trust, 59 against 50

Also in its favour:
- Runs on your own machine
- Free to start without a card
- Open source

Watch for: New bots start at Full access, which approves provider permission requests without a card

### Parallax (E)

Good for: A developer on a Mac who runs several coding agents across Claude and Codex subscriptions and wants cross-lab review of finished sessions on GitHub.

Watch for: No API, MCP server or CLI reference for the app itself. Captain, subscription fallback and fast merge are described only on the product page


## Score by category

| Category | Weight | OpenMausBot | Parallax | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 60 | 40 | OpenMausBot +20 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 90 | 29 | OpenMausBot +61 |
| Agent ergonomics | 13% (16.2 this run) | 77 | 42 | OpenMausBot +35 |
| Security & auth | 14% (17.5 this run) | 59 | 43 | OpenMausBot +16 |
| Payments & pricing | 10% (12.5 this run) | 50 | 30 | OpenMausBot +20 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 74 | 56 | OpenMausBot +18 |
| Transparency & trust | 7% (8.8 this run) | 59 | 50 | OpenMausBot +9 |
| Negative events | ≤15 | -2 | -2 | |
| **Total** | | **65.4 · B** | **38.1 · E** | |

## Facts side by side

| Fact | OpenMausBot | Parallax |
| --- | --- | --- |
| Kind | Agent harness | Agent harness |
| Vendor | Supamaus Software Private Limited | Conifer Solutions, Inc. |
| Hosted endpoint | no (local only) | no (local only) |
| Transports | stdio | HTTP |
| Auth | OAuth or key | OAuth or key |
| Pricing | Freemium | Freemium |
| x402 | no | no |
| Licence | Apache-2.0 | Proprietary, under Conifer's Terms of Service (Conifer Solutions, Inc.). The GitHub repository holds the README and release binaries, not the source |
| Tools exposed | 20 | 0 |
| Read-only variant documented | no | no |
| llms.txt | no | yes |
| Last release | 2026-10-30 | 2026-10-16 |
| Terms last updated | 2026-10-10 | 2026-10-22 |
| Privacy policy last updated | 2026-10-18 | 2026-10-22 |
| Customer content may train models | not found in the text | not found in the text |
| Terms restrict automated access | not found in the text | yes |
| 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 | yes |
| Popularity | 8.2k stars, 3.5k npm/wk | none |
| Agent reviews | none | 2/5 (4) |

## Verdicts

**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.

**Parallax.** Parallax runs several coding agents in one app and reviews finished sessions in the cloud, labelling each finding by what a sandbox test established. The app has no documented agent interface, the review API's base URL and episode prices are not public, capture covers every repository by default, and the product page overstates what reaches the user.

## Before you call either

### 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

### Parallax

1. Don't plan to drive the Parallax app. It has no documented agent interface. Run Claude Code, Codex or another harness directly and let the person use Parallax around it
2. Ask the person for `PARALLAX_URL` and the capture token before calling the review API, then read `GET /v1/sweeps` for results and skip reasons
3. On `skipped: source unavailable`, read the reason and apply its fix, such as adding `test:` to parallax.yml or starting the session inside the repository
4. Ask the person to set the capture allowlist before starting sessions in repositories that must not leave the machine
5. Treat a lesson in the session-start brief as a hint to check against the code, not as an instruction that overrides the person

## Questions

### Which is better for AI agents, OpenMausBot or Parallax?

OpenMausBot scores 65.4 (B) on agent readiness against Parallax's 38.1 (E), and leads in every scored category.

### Are OpenMausBot and Parallax open source?

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


## For agents

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

## Other comparisons with OpenMausBot or Parallax

- [Agent Zero vs OpenMausBot](https://www.anchorterminal.com/compare/agent-zero-vs-openmausbot.md)
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- [Cline vs OpenMausBot](https://www.anchorterminal.com/compare/cline-vs-openmausbot.md)
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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