Alternatives · AI Agents
Mastra alternatives
As of Nov 12, 2026, the highest-graded Mastra alternative is Langflow (2.8 GPA). It's also the best free one.
Mastra compared with 8 alternatives: CrewAI, Letta, Langflow, Vellum, Dify and 3 more.
Mastra has a free plan. Paid plans start at $25 per workspace / month. All 8 alternatives are free or have a free plan.
Listings checked up to Nov 12, 2026 · Where the facts come from
Black Friday: is there a Mastra sale?
At a glance
| Tool | Price | Free plan | Runs on |
|---|---|---|---|
| MastraThis tool | Free plan · from $25/mo | Yes | Web |
| CrewAI | Free plan | Yes | Web |
| Letta | Free plan · from $20/mo | Yes | Web |
| Langflow | Free plan | Yes | Web, macOS, Windows, Linux |
| Vellum | Free plan · from $30/mo | Yes | Web, macOS, Windows, iOS, Android, Browser extension |
| Dify | Free plan · from $590/yr | Yes | Web |
| AgentOps | Free plan · from $40/mo | Yes | Web |
| Composio | Free plan · from $18/mo | Yes | Web |
| Mem0 | Free plan | Yes | Web |
Price against what you get
Mastra starts at $25 a month and scores 2.3 out of 4 on features, ease of use and platforms. 1 of the 5 alternatives on this chart scores higher and starts lower: Composio.
Vellum and Dify score higher without starting lower. Letta starts lower without scoring higher.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
How each one differs from Mastra
CrewAI
Multi-agent platform to build, run and govern AI agents
- CrewAI also covers no-code.
Suits: Developers who want a free multi-agent framework with a hosted option
Letta
Stateful agents with long-term memory, from the MemGPT team
- Letta starts at $20 per month.
Suits: Developers building agents that need memory across sessions
Langflow
Open-source visual builder for AI agents and MCP servers
- Langflow also lists macOS, Windows and Linux apps.
- Langflow also covers templates.
- Langflow does not cover workflow automation, which Mastra does.
Suits: Developers prototyping agent and RAG applications on a canvas
Vellum
Personal AI assistant with long-term memory that acts across apps
- Vellum starts at $30 per month (Mighty).
- Vellum also lists macOS, Windows, iOS and Android apps and a browser extension.
- Vellum also covers chat assistant.
Suits: People who want one assistant that remembers them across devices and chat apps
Dify
Open-source platform for building AI agents and agentic workflows
- Dify starts at $590 per workspace / year (Professional); $59 billed monthly.
- Dify also covers no-code.
Suits: Teams building retrieval-backed agents and chatbots on their own data
AgentOps
Tracing, debugging and cost tracking for AI agents
- AgentOps starts at $40 per month, pay as you go.
- AgentOps also covers reports and dashboards.
- AgentOps does not cover workflow automation, which Mastra does.
Suits: Developers debugging multi-step agents built on CrewAI, LangChain or the OpenAI SDKs
Composio
Tool and app connections with managed auth for AI agents
- Composio starts at $18 per seat / month (Composio For You) or $29 per month (developer platform).
Suits: Developers who want agents to use many apps without writing each OAuth flow
Mem0
Memory layer that lets AI agents remember across sessions
- Mem0 does not cover workflow automation, which Mastra does.
Suits: Developers adding long-term memory to chatbots, support agents and voice agents
Limits worth knowing in Mastra
- It is a code framework, so building an agent means writing TypeScript; there is no no-code builder.
- Cloud usage past each plan's allowance is billed separately, for example $0.10 per GB of egress and $10 per 100K observability events.
- RBAC, SSO and audit logs are Enterprise only, and the SOC 2 report starts at the Team plan.
- Some directories in the repository are under a separate enterprise license (ee/), so not every file carries the main open-source terms.
Common questions
What are the alternatives to Mastra?
The alternatives to Mastra in this directory are CrewAI, Letta, Langflow, Vellum, Dify, AgentOps, Composio and Mem0. Each one has a side-by-side comparison with Mastra.
Is there a free alternative to Mastra?
Yes. CrewAI, Letta, Langflow, Vellum, Dify, AgentOps, Composio and Mem0 have a free plan alongside paid ones.
Which Mastra alternatives work on Windows?
The Mastra listing does not include a Windows app. Langflow and Vellum list one.
Which Mastra alternatives work on macOS?
The Mastra listing does not include a macOS app. Langflow and Vellum list one.
When were these prices checked?
Each listing shows its own date. On this page they run from Oct 5, 2026 to Nov 12, 2026. Vendors change prices without notice, so confirm on their site before you buy.