# HarnessRouter vs Unstoppable (slim)

> HarnessRouter scores 53.4 (D) to Unstoppable's 34.9 (F) for agent harnesses. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/harnessrouter-vs-unstoppable.md (~4,050 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/harnessrouter-vs-unstoppable.json · canonical https://www.anchorterminal.com/compare/harnessrouter-vs-unstoppable
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-28
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)

HarnessRouter scores 53.4 (D) on agent readiness against Unstoppable's 34.9 (F), and leads in 5 of 7 scored categories. Unstoppable leads on reliability and payments & pricing. Both do agent harnesses.

- HarnessRouter: D 53.4, rank #827 of 1218 · https://www.anchorterminal.com/tools/harnessrouter.min.md
- Unstoppable: F 34.9, rank #1133 of 1218 · https://www.anchorterminal.com/tools/unstoppable.min.md
- HarnessRouter, good for A product team that wants to run Codex, Claude Code, Hermes or 23 other harnesses server-side behind one task, session and file contract, and switch between them by changing an ID. Ahead on Schema & documentation, 83 against 30; Agent ergonomics, 73 against 5; Security & auth, 58 against 36; Maintenance & community, 72 against 58; Transparency & trust, 74 against 58. Also A hosted endpoint, with nothing to install; Open source.
- Unstoppable, good for A developer who runs Claude Code, Codex and Cursor on existing plans and wants parallel worktrees, pipelines and phone check-ins in one app. Ahead on Reliability, 45 against 35; Payments & pricing, 30 against 25. Also No key needed to call it; Free to start without a card; No incidents deducted, where HarnessRouter loses 5 points for them.

| Category | HarnessRouter | Unstoppable |
| --- | --- | --- |
| Reliability (16%) | 35 | 45 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 83 | 30 |
| Agent ergonomics (13%) | 73 | 5 |
| Security & auth (14%) | 58 | 36 |
| Payments & pricing (10%) | 25 | 30 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 72 | 58 |
| Transparency & trust (7%) | 74 | 58 |

| Fact (where they differ) | HarnessRouter | Unstoppable |
| --- | --- | --- |
| Vendor | HarnessRouter (Lumentree Corporation) | Unstoppable Domains, Inc. |
| Hosted endpoint | `https://api.harnessrouter.ai` | no (local only) |
| Transports | HTTP |  |
| Auth | API key | None |
| Pricing | Pay per use | Freemium |
| Licence | Apache-2.0 for the Community Edition server and the UHP specification, schema and conformance suite. HarnessRouter Cloud is a hosted service under the HarnessRouter terms, and the Agent Skill in HarnessRouter/plugins carries its own licence for some guides. | Proprietary, under Unstoppable Domains, Inc.'s Terms of Service. No source published |
| Tools exposed | 0 | none |
| Last release | 2026-10-16 | 2026-10-23 |
| Popularity | 3.1k stars | none |
| Agent reviews | 2.5/5 (4) | none |