Alternatives
10 best Mastra alternatives
Tools that cover the same task as Mastra (code), ranked by how completely their pricing, free tier and API access are documented. Checked Oct 4, 2026.
- Mastra starts at
- $250/mo
- Free plan
- Free plan
- API
- API available
- 01
Langfuse
Langfuse is an open-source LLM engineering platform for tracing, evaluating, and improving AI agents with collaborative debugging and metrics. Langfuse Cloud offers hosted Hobby, Core, and Pro tiers metered in observability units.
Best for: AI engineers who need open-source-friendly observability and eval workflows without building tooling in-house.
- 02
Tiptap Editor 3.0 Beta
Tiptap is a headless rich-text editor framework with 100+ extensions and a paid Tiptap Platform for collaboration, comments, DOCX conversion, AI toolkit agents, and cloud documents. Developers embed the open-source editor or buy hosted platform tiers for production document apps.
Best for: Product teams building Notion-like, legal, or AI-native editors who need extensible React components plus optional hosted collaboration.
- 03
Laminar
Laminar is an open-source agent observability platform that captures LLM calls, tool calls, sub-agents, costs, and tokens, then surfaces failures through Signals and clustered failure modes. Hosted plans add retention, data limits, and support tiers for teams shipping production agents.
Best for: Engineering teams running AI agents who need trace visibility, automatic failure detection, and hosted retention without building observability in-house.
- 04
Mem0
Mem0 provides persistent memory infrastructure for AI agents and applications so context survives across sessions, users, and agents. The platform offers hosted plans with SDK integration plus open-source options for developers building production agents that need durable recall.
Best for: Agent builders and app teams that need hosted memory layers with defined add and retrieval quotas.
- 05
Pangolin
Pangolin is an open-source secure access and networking platform connecting workforces, AI agents, and infrastructure with identity-aware controls. Cloud plans add SSO, RBAC, audit logging, device posture, and an AI Gateway for identity-aware access to AI providers without sharing API keys.
Best for: Teams securing remote access to private apps, infrastructure, and AI workloads who want open-source software with optional managed cloud tiers.
- 06
Brainbase Labs
Brainbase Labs hosts internal AI agents that self-improve through evaluations, observability, and hillclimbing. The platform offers managed agent APIs, orchestration across models and harnesses, sandboxes, auth, and deployment options from managed cloud to private cloud and on-premise.
Best for: Teams shipping production agents who want managed hosting, evals, orchestration, and enterprise deployment options.
- 07
Better Auth
Better Auth is a TypeScript authentication framework that lives in your application code with plugins for sessions, social login, organizations, passkeys, API keys, and enterprise SSO. The vendor also sells managed infrastructure with dashboards, audit logs, and security detections while the core framework stays open source.
Best for: Developers building Next.js, Nuxt, SvelteKit, Hono, and other TypeScript apps who want composable auth in code plus optional hosted infrastructure.
- 08
Letta
Letta is an AI research lab and product company building stateful agents whose memory and capabilities evolve over time, originating from MemGPT research. It ships Letta Agent software, a CLI, and cloud plans for individuals, teams, and API developers.
Best for: Engineers and teams building long-horizon coding or workflow agents that need durable memory and sandboxed execution.
- 09
Browserbase
Usage-based plans start free and scale to Developer and Startup tiers for production agent workloads.
Best for: Teams building agents that must browse, authenticate, and extract data from sites without traditional APIs.
- 10
Executor
Executor is an open-source gateway that connects AI agents to the SaaS tools a team already uses, with cloud hosting and optional self-hosted enterprise deployment. It emphasizes safe tool execution, verified domains, and a single integration surface for agent workflows.
Best for: Engineering teams wiring multiple AI agents into CRMs, dev tools, and internal SaaS without rebuilding each integration per agent.
Mastra alternatives: common questions
What is the best free alternative to Mastra?
Langfuse has an ongoing free plan. Hobby cloud plan free with no credit card required Free plans change, so check the vendor before relying on one.
What is the cheapest Mastra alternative?
Pangolin has the lowest listed starting price at $4/mo, compared with $250/mo for Mastra.
Which Mastra alternatives have an API?
Langfuse, Tiptap Editor 3.0 Beta, Mem0, Pangolin, Brainbase Labs mention API or developer access.