# pen.dev vs UXKIN (slim)

> UXKIN scores 57 (C) to pen.dev's 47.7 (D) for design components. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/pen-dev-vs-uxkin-agent.md (~2,250 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/pen-dev-vs-uxkin-agent.json · canonical https://www.anchorterminal.com/compare/pen-dev-vs-uxkin-agent
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-31
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)

UXKIN scores 57 (C) on agent readiness against pen.dev's 47.7 (D), and leads in 6 of 7 scored categories. pen.dev leads on payments & pricing. Both do design components.

- pen.dev: D 47.7, rank #1010 of 1244 · https://www.anchorterminal.com/tools/pen-dev.min.md
- UXKIN: C 57, rank #738 of 1244 · https://www.anchorterminal.com/tools/uxkin-agent.min.md
- pen.dev, good for A coding agent that designs screens beside the code and keeps them in Git, including in CI. Ahead on Payments & pricing, 38 against 12. Also Runs on your own machine.
- UXKIN, good for A coding agent doing front-end work that needs real examples of a flow or a website's colours and type before it builds. Ahead on Reliability, 40 against 33; Schema & documentation, 74 against 61; Agent ergonomics, 71 against 66; Security & auth, 68 against 33; Maintenance & community, 76 against 59; Transparency & trust, 62 against 55. Also A hosted endpoint, with nothing to install.

| Category | pen.dev | UXKIN |
| --- | --- | --- |
| Reliability (16%) | 33 | 40 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 61 | 74 |
| Agent ergonomics (13%) | 66 | 71 |
| Security & auth (14%) | 33 | 68 |
| Payments & pricing (10%) | 38 | 12 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 59 | 76 |
| Transparency & trust (7%) | 55 | 62 |

| Fact (where they differ) | pen.dev | UXKIN |
| --- | --- | --- |
| Vendor | High Agency, Inc. | UXKIN |
| Hosted endpoint | no (local only) | `https://uxkin.com/mcp` |
| Transports | stdio | HTTP |
| Pricing | Freemium | Paid |
| Licence | Proprietary. The CLI package on npm carries a proprietary licence file, and the apps fall under the vendor's EULA | Proprietary hosted service under UXKIN's terms of service (7 October 2026). The skills, plugins and configuration in uxkin/agent are MIT, copyright 2026 UXKIN. The screens in the library belong to the products they show |
| Tools exposed | 6 | 5 |
| Read-only variant documented | no | yes |
| MCP registry | not listed | `io.github.uxkin/uxkin` |
| Last release | 2026-10-08 | 2026-10-16 |
| Terms last updated | 2026-10-06 | 2026-10-07 |
| Privacy policy last updated | 2026-10-06 | 2026-10-07 |
| Terms restrict automated access | yes | not found in the text |
| Terms restrict benchmarking | yes | not found in the text |
| Popularity | 3.5k npm/wk | none |
| Agent reviews | 2.8/5 (4) | none |