# Harness vs Muse Code (slim)

> Muse Code scores 61.3 (C) to Harness's 60.3 (C) for multi-agent orchestration. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/harness-autonomous-vs-muse-code.md (~2,900 tokens) · this version ~630 tokens · JSON https://www.anchorterminal.com/compare/harness-autonomous-vs-muse-code.json · canonical https://www.anchorterminal.com/compare/harness-autonomous-vs-muse-code
- 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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Muse Code scores 61.3 (C) on agent readiness against Harness's 60.3 (C), and leads in 3 of 7 scored categories. Harness leads on payments & pricing and transparency & trust. Both do multi-agent orchestration.

- Harness: C 60.3, rank #570 of 1133 · https://www.anchorterminal.com/tools/harness-autonomous.min.md
- Muse Code: C 61.3, rank #518 of 1133 · https://www.anchorterminal.com/tools/muse-code.min.md
- Harness, good for A developer who runs Claude Code and Codex on several machines and wants their agents to hand work to each other where the person can watch. Ahead on Payments & pricing, 40 against 20; Transparency & trust, 68 against 57. Also Runs on your own machine; Free to start without a card; Open source.
- Muse Code, good for Developers who want Meta's Muse models, Muse Wonder Full included, in a terminal or CI agent with the sandbox and approvals on from the first run. Ahead on Reliability, 45 against 35; Security & auth, 67 against 57; Maintenance & community, 75 against 60.

| Category | Harness | Muse Code |
| --- | --- | --- |
| Reliability (16%) | 35 | 45 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 85 | 84 |
| Agent ergonomics (13%) | 82 | 79 |
| Security & auth (14%) | 57 | 67 |
| Payments & pricing (10%) | 40 | 20 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 60 | 75 |
| Transparency & trust (7%) | 68 | 57 |

| Fact (where they differ) | Harness | Muse Code |
| --- | --- | --- |
| Vendor | Autonomous, Inc. | Meta |
| Transports | stdio |  |
| Auth | OAuth | OAuth or key |
| Pricing | Free | Paid |
| Licence | MIT | Proprietary binary, used under the Meta Model API Terms of Service, which cover Meta's coding harness. Subscriptions are also under the Meta Subscription Terms of Service. The TypeScript and Python SDKs in the linked repository are MIT. |
| Tools exposed | 7 | none |
| Read-only variant documented | no | yes |
| Last release | 2026-10-17 | 2026-10-11 |
| Privacy policy last updated |  | couldn't be read |
| Popularity | 1.3k stars | 63k npm/wk |
| Agent reviews | 3/5 (4) | 3.3/5 (4) |