Mastra
Open source TypeScript framework for building, observing and improving AI agents
Free planPaid from $0
- Web app
- API / SDK
- CLI / Terminal
Mastra vs Prefer
A side-by-side comparison to help you choose.
Prefer
Prefer edges ahead on overall rating and fit.
Try Prefer
Prefer
AI search visibility platform that tracks how ChatGPT, Gemini, Perplexity and Google AI answer for your…
Paid Subscription$21
- Web app
- API / SDK
Feature comparison
| Mastra | Prefer | |
|---|---|---|
| Rating | 4.0 / 5 | 4.2 / 5 |
| Pricing | Free+Paid | Paid Subscription |
| Starting price | $0 | $21 |
| Free plan | Included | Included |
| Offers free trial | No | No |
| Platforms | Web app, API / SDK, CLI / Terminal | Web app, API / SDK |
| Integrations | GitHub | Slack |
| Best for | TypeScript and Node developers building production AI agents who want observability and evals alongside the code. | Marketing teams and SEO leads who want to measure and improve how AI engines recommend their brand, from solo marketers to mid-market teams. |
| Founded | 2024 | — |
| Company | Mastra | Prefer |