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Mastra Code

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A terminal-based AI coding agent for streamlined development workflows.

Free plan available
Freemium AI Coding Terminal Tools AI Agents
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Tracked since 2026

The Bottom Line

Price
Free plan available. Compare plans

Key facts

  • Terminal-based AI coding agent for development workflows.
  • Integrates with 70+ AI models for code reading, editing, and execution.
  • Offers multiple modes (Build, Plan, Fast) and extensive customization options.

Pros

  • Streamlines coding tasks directly within the terminal
  • Offers flexibility with multiple AI models and operational modes
  • Highly customizable and extensible for specific developer needs
  • Facilitates code exploration and architectural planning
  • Provides detailed token usage tracking

Cons

  • Requires Node.js 22.13.0 or later
  • Initial setup involves API key configuration for AI providers
  • Learning curve for mastering various modes and commands

What is Mastra Code?

Mastra Code is a powerful terminal-based AI coding agent designed to assist developers directly within their command-line interface. Built on Mastra's Harness, Agent, and Memory primitives, it integrates with over 70 AI models to provide comprehensive tools for reading, searching, editing, and executing code. It allows users to switch between different modes (Build, Plan, Fast) to adapt to various coding tasks, from in-depth architectural analysis to quick lookups and small edits. This tool is ideal for developers looking to enhance their day-to-day coding, explore complex codebases, and manage Git operations with AI assistance. It supports multi-model workflows, enabling users to compare responses from different AI providers. Mastra Code is highly configurable and customizable, offering project-scoped threads, custom commands, and the ability to extend its functionality programmatically with custom modes, tools, and subagents.

Available on: macOS, Linux, Windows

Data compiled by Toolradar How we evaluate
Source code.mastra.ai

Key Features

  • Terminal-based interface
  • Integration with 70+ AI models
  • Multiple operational modes (Build, Plan, Fast)
  • Built-in tools for file viewing, editing, searching, shell commands, and web search
  • Project-scoped threads and configuration
  • Customizable commands, skills, and database settings
  • Programmatic extension with custom modes, tools, and subagents
  • Slash commands for session and settings management

Pricing

Freemium

Mastra Code offers a generous free tier with optional paid upgrades for advanced features.

View pricing

Mastra Code by the numbers

Mastra Code compared with 169 Terminal Tools tools on Toolradar, as of Nov 2026
Metric Mastra Code Peer median Position (1 is best)
Free plan Yes 85% have one n/a
Listed as an alternative to 2 tools 1 #56 of 169 (joint)

Listed as an alternative to: #53 on 2026-10-16 to #56 on 2026-11-11 (rank among 169 tools, 1 is best).

Each position is counted among the tools that have data for that row, as noted under it. All Terminal Tools data · How we compute this. Advertising and placement fees are not inputs to any position.

Cite this: Toolradar, “Mastra Code by the numbers”, Nov 2026.

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Mastra Code FAQ

How does Mastra Code assist developers with their daily coding tasks?

Mastra Code functions as a terminal-based AI coding agent, providing tools to read, search, edit, and execute code directly within the command-line interface. It helps streamline coding tasks and manage Git operations with AI assistance, enhancing day-to-day development workflows.

Which teams would benefit most from using Mastra Code?

Mastra Code is ideal for development teams and individual developers who want to enhance their coding efficiency and explore complex codebases. Its terminal-based nature and AI assistance are particularly useful for those who prefer working within the command line.

How does Mastra Code compare to a competitor like Devin?

Mastra Code distinguishes itself by being a terminal-based AI coding agent that integrates with over 70 AI models and offers multiple operational modes (Build, Plan, Fast). It focuses on highly configurable and customizable workflows directly within the command line, unlike some other AI coding tools.

What kind of limitations should users be aware of when adopting Mastra Code?

Users should note that Mastra Code requires Node.js 22.13.0 or later for operation. Additionally, initial setup involves configuring API keys for various AI providers, and there may be a learning curve to master its different modes and commands effectively.

Does Mastra Code include a free tier?

Yes, Mastra Code is available on a free tier, allowing users to get started with its features. Paid plans are also offered for those who require more usage and additional functionalities.

Can Mastra Code be customized to fit specific project needs?

Mastra Code is highly configurable and customizable, allowing users to extend its functionality programmatically. It supports project-scoped threads, custom commands, and the ability to create custom modes, tools, and subagents to tailor it to specific development workflows.

How does Mastra Code support different AI models?

Mastra Code integrates with over 70 AI models, providing comprehensive tools for various coding tasks. This multi-model workflow enables users to compare responses from different AI providers, offering flexibility and diverse perspectives for problem-solving.

Source: code.mastra.ai

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