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Free plan + paidInformation reviewed 2026-10-15

Mastra

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About this listing

Product and access model reviewed from current official sources; workflow and example are editorial suggestions, not a hands-on test.

Official source

A TypeScript framework for agents, tools, workflows, memory, and evaluation, with a hosted platform option.

Best suited to

Mastra suits TypeScript developers building a repeatable agent application.

Meet Mastra

Mastra suits TypeScript developers building a repeatable agent application. Tools, workflows and memory give the application more structure than a single model call, while Studio, tracing and evaluations support inspection. It can run on chosen infrastructure or the provider's platform, but deployment and model usage still need explicit configuration.

A practical workflow

  1. Create a small project using the documented TypeScript setup.
  2. Configure a model and one narrowly scoped tool.
  3. Run the agent or workflow locally and inspect its trace.
  4. Add evaluations and failure handling before deploying the task.

Illustrative input

This example describes a task, not a tested output. Adjust the source material and settings to your own situation.

An agent may search an approved document collection and summarize relevant passages, but must not write to external systems without a separate allowed tool.

Result check: Inspect tool arguments and sources, and test what happens when the model or search operation fails.

Access and alternatives

The core framework is Apache-2.0 open-source software, and the hosted platform has a limited recurring Starter option. Paid platform and enterprise features add allowances or controls. Model tokens, storage and compute can cost extra even when framework access is free.

Choose another workflow when its emphasis fits better: CrewAI for another agent orchestration approach; LangSmith for application tracing and evaluation.

Illustrative workspace photo
Illustrative stock photo from Unsplash; not a screenshot of Mastra.

What you can do

TypeScript agents and tools

Structured workflows

Agent memory

Studio development interface

Observability and evaluations

Where it helps

  • TypeScript tools and workflows share a framework
  • Studio and traces support development inspection
  • Self-hosted and managed deployment choices exist

What to consider

  • The application still needs model and infrastructure configuration
  • Hosted free quotas do not include unrestricted production resources

Pricing & free access

Official pricing
Free plan + paid

The core framework is Apache-2.0 open-source software, and the hosted platform has a limited recurring Starter option. Paid platform and enterprise features add allowances or controls. Model tokens, storage and compute can cost extra even when framework access is free.

Plan information can change. Prices and conditions are set by the provider. Information checked 2026-10-15.

Source for access details

Weekly AI tool changes in AI Agents & Workflows

One email a week with pricing and feature changes in this category. No per-tool price alerts.

Questions about Mastra

Who is Mastra useful for?

Mastra suits TypeScript developers building a repeatable agent application. Tools, workflows and memory give the application more structure than a single model call, while Studio, tracing and evaluations support inspection. It can run on chosen infrastructure or the provider's platform, but deployment and model usage still need explicit configuration.

Does Mastra have continuing free access?

The core framework is Apache-2.0 open-source software, and the hosted platform has a limited recurring Starter option. Paid platform and enterprise features add allowances or controls. Model tokens, storage and compute can cost extra even when framework access is free.

How should I start a small evaluation?

Create a small project using the documented TypeScript setup. Configure a model and one narrowly scoped tool.

What should I check in the result?

Inspect tool arguments and sources, and test what happens when the model or search operation fails.

When should I choose a different workflow?

CrewAI for another agent orchestration approach; LangSmith for application tracing and evaluation.

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Review evidence

Documentation-based review · 2026-10-15

Reviewed from the linked official documentation. The workflow and example are editorial suggestions; no account-level product test or measured performance comparison was performed.

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