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Mastra vs Peargent
Mastra is a TypeScript framework; Peargent is Python-first and open source.
Which to pick
Pick Mastra if you want…
- Typed AI agents with built-in observability
- TypeScript AI agents
- Integrations with React, Next.js or Node (on Mastra's list, not Peargent's)
Pick Peargent if you want…
- Simple, type-safe Python AI agents
- A free, open-source tool
- Integrations with Python (on Peargent's list, not Mastra's)
Side by side
- What it is
- Mastra:Mastra is an open-source TypeScript framework for building AI agents with memory, tools, workflows and observability.
- Peargent:Peargent is a lightweight Python framework for building AI agents with a clean API, memory, tool integration, and observability.
- Best for
- Mastra:Typed AI agents with built-in observability
- Peargent:Simple, type-safe Python AI agents
- Who it’s for
- Mastra:TypeScript developers building AI-powered applications and agents.
- Peargent:Python developers who need simple, production-ready AI agents.
- Pricing
- Mastra:Freemium
- Peargent:Open source
- Plans
- Mastra:Starter $0 per month · Teams $250 per month
- Peargent:—
- Open source
- Mastra:Yes, 28,481 GitHub stars
- Peargent:Yes
- Works with
- Mastra:React, Next.js, Node, LibSQL, Postgres, Vite
- Peargent:Python
Mastra features
- Typed Agents. Define agents with instructions, models, tools and runtime behavior in TypeScript.
- Workflows. Compose multi-step, retryable, branchable workflows with typed control flow.
- Harness. Coordinate multi-mode agents with shared state, threads and storage.
- Memory. Durable observational memory with semantic recall and thread-aware storage.
- Observability. Logs, metrics, traces, datasets and signals for full runtime insight.
- Server & Studio. Run agents locally or in Mastra Cloud and manage them via a web studio.
Peargent features
- Clean API. Provides a concise, Python-first interface for defining agent logic.
- Built-in Memory. Agents retain context across interactions without extra setup.
- Tool Integration. Easily connect external tools and services to agents.
- Observability. Built-in tracing and logging to monitor agent behavior.
- Type Safety. Leverages Python type hints for safer development.
- Production Ready. Designed for real-world deployment with minimal boilerplate.
- Open Source. Free to use and modify under an open-source license.
- Fast Setup. Install via a single pip command and start building in minutes.
Mastra vs Peargent FAQ
Is Mastra or Peargent free?+
Mastra has a free plan (Starter); paid plans start at $250/month (Teams). Peargent is free and open source.
Which is cheaper, Mastra or Peargent?+
Peargent is free, so it costs less. Mastra starts at $250/month (Teams).
Is Mastra or Peargent open source?+
Yes, both are open source: Mastra (mastra-ai/mastra on GitHub) and Peargent (quanta-naut/peargent on GitHub).
Do Mastra and Peargent integrate with the same tools?+
Their integration lists don't overlap: Mastra lists React, Next.js, Node, LibSQL and 2 more; Peargent lists Python.
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.