# Amp vs Unstoppable (slim)

> Amp scores 57.1 (C) 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/amp-vs-unstoppable.md (~3,600 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/amp-vs-unstoppable.json · canonical https://www.anchorterminal.com/compare/amp-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)

Amp scores 57.1 (C) on agent readiness against Unstoppable's 34.9 (F), and leads in 6 of 7 scored categories. Unstoppable leads on reliability. Both do agent harnesses.

- Amp: C 57.1, rank #717 of 1218 · https://www.anchorterminal.com/tools/amp.min.md
- Unstoppable: F 34.9, rank #1133 of 1218 · https://www.anchorterminal.com/tools/unstoppable.min.md
- Amp, good for Teams that want a hosted, multi-model coding agent with shared threads and cloud machines, driven from scripts through execute mode or the SDKs. Ahead on Schema & documentation, 72 against 30; Agent ergonomics, 69 against 5; Security & auth, 57 against 36; Payments & pricing, 35 against 30; Maintenance & community, 79 against 58; Transparency & trust, 77 against 58.
- 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 31. Also No key needed to call it; Free to start without a card.

| Category | Amp | Unstoppable |
| --- | --- | --- |
| Reliability (16%) | 31 | 45 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 72 | 30 |
| Agent ergonomics (13%) | 69 | 5 |
| Security & auth (14%) | 57 | 36 |
| Payments & pricing (10%) | 35 | 30 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 79 | 58 |
| Transparency & trust (7%) | 77 | 58 |

| Fact (where they differ) | Amp | Unstoppable |
| --- | --- | --- |
| Vendor | Amp Frontier Corporation | Unstoppable Domains, Inc. |
| Auth | OAuth or key | None |
| Licence | Proprietary, under the Amp licence terms (Amp Frontier Corporation). The npm packages are marked Amp Commercial License and the source repository is private | Proprietary, under Unstoppable Domains, Inc.'s Terms of Service. No source published |
| Last release | 2026-10-08 | 2026-10-23 |
| Terms last updated | no date given |  |
| Privacy policy last updated | 2026-09-10 |  |
| Customer content may train models | not found in the text |  |
| Terms restrict automated access | not found in the text |  |
| Terms restrict benchmarking | not found in the text |  |
| Terms or service can change without notice | yes |  |
| Arbitration or class-action waiver | yes |  |
| Popularity | 41k npm/wk | none |