AgentOS vs Mastra
A side-by-side look at scores, pricing and features — with RECATOOLS' ASEAN-aware verdict for each.
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| RECATOOLS Score | 6.9 / 10 | 8 / 10 |
| Capability | ||
| Value for money | ||
| Ease of use | ||
| ASEAN readiness | ||
| API quality | ||
| Pricing | Open Source | Freemium |
| Free tier | Free under Apache 2.0 (core runtime) and MIT (agents, extensions, guardrails); self-hosted. Enterprise support by email quote, no published prices | Open-source framework free to self-host (core Apache-2.0); Mastra Platform Starter $0 with 100K observability events, 24 CPU hours and 15-day retention |
| Paid from | — | Teams $250/mo (1M observability events, 250 CPU hours); usage overages on all tiers |
| Has API | ✓ | ✓ |
| Open source | ✓ | ✓ |
| Free to use | ✓ | ✓ |
| Users | — | — |
| Founded | — | 2024 |
| Maker | Frame (Framers Lab, Inc.) | — |
| Verdict | AgentOS is unusual in two ways: agents can forge new JavaScript tools mid-task, gated by test cases and an LLM judge, and its memory layer models forgetting and recall rather than acting as a flat vector store. Its self-... |
Mastra has become one of the default ways to build AI agents in TypeScript: agents, workflows with suspend and resume, memory, retrieval, MCP, evals and observability come in one framework with a local Studio for debuggi... |
| Full review → | Directory listing → |
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Comparisons cover up to 4 tools. Scores are RECATOOLS editorial assessments; verify current pricing on each vendor's site.