Mastra

Mastra is an open-source TypeScript framework for building and deploying AI agents and applications.

Mastra is a TypeScript framework designed to help developers build, observe, and improve AI agents that run for extended periods. It provides typed agents, graph-based workflows, observational memory, and built-in observability to take applications from prototype to production. The platform connects to over 90 AI model providers through a standard interface, including OpenAI, Anthropic, and Gemini. Developers can integrate Mastra with frontend and backend frameworks like React, Next.js, and Node, or deploy it as a standalone server. It also supports Model Context Protocol servers, letting teams expose agents and tools via a structured interface.

Mastra at a glance

Best for: Software engineer, Founder
Runs on: Web, API, self-hosted, open source
Pricing: Starter Free; Teams 1M events $8/100K; Enterprise custom; Free Apache 2.0 self-hosted option
Released: November 2024
Category: AI coding tool
Website: mastra.ai

Key features

Define typed agents with instructions, models, and tools
Compose multi-step workflows with retries and branches
Store conversational context with observational memory
Track latency, cost, and model calls with observability
Connect to 90+ AI model providers through one API
Build Model Context Protocol servers for sharing tools
Score agent runs against repeatable evaluation checks

Use it for

Build conversational agents for customer support and onboarding
Create domain-specific copilots for coding, legal, or research
Automate multi-step business workflows and processes
Analyze data and provide actionable recommendations

Alternatives to Mastra

Factory — Agent platform with code review, AutoWiki and model routing built in
CrewAI — Open-source agent framework with enterprise governance on top
Tura — Reduces token usage and LLM turns by over 80 percent while improving performance.
BeeAI Framework — Provides constraint enforcement for predictable agent behavior.
Melra — Governs AI agent tool calls with local policies, approval gates, and verified receipts.
OpenSquilla — Maximizes AI intelligence density while minimizing token costs through smart routing.
OpenAI Agents SDK JS — Builds multi-agent workflows and voice agents with native handoffs.
Mastro Connect — Turns browser sessions into clean agent-ready commands using OpenAPI specifications.
VoltAgent — Offers open-source flexibility with built-in supervisor agent orchestration and RAG.
OpenAI Agents SDK — Provider-agnostic multi-agent framework with built-in guardrails and tracing.
Agent Native — Define capabilities once for the agent, UI, APIs, and integrations.
AI SDK — Switch providers easily and stream real-time responses without custom parsing.

All Mastra alternatives