The Mastra Insider’s Guide
Everything we know about Mastra in one document: what it costs, its grades, getting a refund, getting help and what else to look at. Read it here, or keep a copy.
Mastra
The Insider’s Guide
TypeScript framework for building and running AI agents
Every plan, grade, refund rule and rival among AI agents, read from Mastra’s own pages.
Made by Mastra · checked Nov 12, 2026 · toolgpa.com
Contents
- 01WelcomeWhat it is, who it suits, its grades and the ten things to know first
- 02What it costsEvery plan, the free plan, ways to pay less and how prices have moved
- 03What it doesIts main features, where it runs, what it works with and who makes it
- 04Where it standsIts grades against its category, and whether to keep it or make your own
- 05The alternativesThe tools it is most often weighed against, side by side
- 06Quick answersThe questions people ask about it, each answered in a line or two
- 07About ToolGPAWho made this guide, what else is on the site, and how to cite it
ToolGPA put this guide together from Mastra’s own pages, its app-store listings and our grades. Every fact in it is on Mastra’s page too, where it is kept up to date. Checked Nov 12, 2026.
Part 01 · Overview
Welcome
What it is, who it suits, its grades and the ten things to know first
2.8
GPA, above 88 of the 101 other AI agents we grade
Mastra is an open-source TypeScript framework for building AI agents and agent-powered apps, with agents, workflows, memory, a server and observability in one package. Apps run locally or on any Node.js host, and Mastra Cloud adds hosted deployment and trace storage on usage-based workspace plans.
To get you started, here are 9 things to know about Mastra, taken from its own pages and our grades.
No store rating, and building an agent means writing TypeScript and running it yourself.
- 1
Best for TypeScript developers building their own agents
You have to write code, there is no no-code builder, and usage past each plan's allowance is billed separately.
- 2
Paid plans start at $25 a month
As its pricing page puts it: $25 per workspace / month.
- 3
There is a free plan
Unlimited agents, users and deployments, 100K observability events, 1 GB egress, 5 connections and 15-day trace retention.
- 4
It runs on Web
Web.
- 5
Agents
Typed agents are defined in code with instructions, a model, tools and runtime behavior in one place.
- 6
Workflows
Typed steps can be chained with retries and branches into workflows that a team can inspect.
- 7
Memory
Agents can keep durable context through thread-aware storage, semantic recall and an observational memory option.
- 8
A 2.8 GPA, above 88 of 101
That is against the other AI agents we grade, on value, the free plan, features, ease of use and platforms.
- 9
Keep it
To replace Mastra you would be making an AI agent, with the models and the safeguards behind it. That is not a weekend's work, with an AI app builder or without one.
Mastra at a glance
- Pricing
- Free plan, from $25 per workspace / month
- Free plan
- Yes
- Free trial
- None stated
- Runs on
- Web
- Made by
- Mastra, since 2024
- Category
- AI Agents
- Our grade
- 2.8 GPA, good
The report card
Best for TypeScript developers building their own agents
Mastra is an open-source TypeScript framework for agents, workflows, memory and evals, with a free cloud plan with 100K observability events. You have to write code, there is no no-code builder, and usage past each plan's allowance is billed separately.
| Subject | Grade | Comment |
|---|---|---|
| Value for money | A | The framework is open source and the cloud has a free plan. Starter is $25 a workspace a month and Team $250. |
| Free plan and trial | B | Free cloud plan: unlimited agents, users and deployments, 100K observability events and 15-day trace retention. A solo developer can live on that. |
| Features | B | Agents, workflows, memory, evals, MCP servers and deployment to many hosts. Nothing in the listing is missing for code-first agent work. |
| Ease of use | D | No store rating, and building an agent means writing TypeScript and running it yourself. |
| Platforms and integrations | B | Web with deployment to Vercel, Netlify and Cloudflare, and Next.js, React, Hono and Express listed. |
An A is worth 4 points, a B 3, a C 2, a D 1 and an F nothing. The GPA is the average of the five.
Who Mastra is for
- Fits if you write TypeScript and want to build your own agents
- Works for teams that want to deploy agents on Vercel or Cloudflare
Who it is not for
- Not for you if you want no-code, since building an agent means writing TypeScript
- Pricey if you grow, as past the allowance egress is $0.10 a GB and events $10 per 100K
- Watch out: RBAC, SSO and audit logs are Enterprise only, and the SOC 2 report starts at Team at $250
- Watch out: some repository folders (ee/) sit under a separate enterprise licence
Good to know
Good for
- TypeScript teams building agents inside Next.js, React or Node apps
- Developers who want a free framework and only pay if they use the hosted cloud
- Teams that want agents, workflows, memory and traces from one library
Worth knowing
- It is a code framework, so building an agent means writing TypeScript; there is no no-code builder.
- Cloud usage past each plan's allowance is billed separately, for example $0.10 per GB of egress and $10 per 100K observability events.
- RBAC, SSO and audit logs are Enterprise only, and the SOC 2 report starts at the Team plan.
- Some directories in the repository are under a separate enterprise license (ee/), so not every file carries the main open-source terms.
Part 02 · Pricing
What it costs
Every plan, the free plan, ways to pay less and how prices have moved
$25
A month to start. There is a free plan too
Mastra has a free plan. Paid plans start at $25 per workspace / month.
The framework is open source and the cloud has a free plan.
Free
$0
Unlimited agents, users and deployments, 100K observability events, 1 GB egress, 5 connections and 15-day trace retention.
Starter
$25
per workspace / month
One small dedicated project, usage alerts, 250K observability events, 10 GB egress, 10 connections and 60-day trace retention.
Team
$250
per workspace / month
One small and two medium dedicated projects, a SOC 2 report, 10M observability events, 100 GB egress, 50 connections and 180-day trace retention.
Enterprise
Custom
RBAC, SSO, audit logs, custom allowances and connections, and dedicated support.
The free plan
Unlimited agents, users and deployments, 100K observability events, 1 GB egress, 5 connections and 15-day trace retention.
Read from mastra.ai on Nov 12, 2026.
Part 03 · Features
What it does
Its main features, where it runs, what it works with and who makes it
1
Place it runs: Web
TypeScript framework for building and running AI agents. Here is what it does, as its own site describes it, and what it covers: open source, self-hostable, AI features, workflow automation, AI agents.
Agents, workflows, memory, evals, MCP servers and deployment to many hosts.
- Agents
- Typed agents are defined in code with instructions, a model, tools and runtime behavior in one place.
- Workflows
- Typed steps can be chained with retries and branches into workflows that a team can inspect.
- Memory
- Agents can keep durable context through thread-aware storage, semantic recall and an observational memory option.
- Observability and evals
- Traces, metrics and logs sit alongside evaluation tools such as scorers, datasets and experiments.
- MCP servers
- Agents, tools and other resources can be exposed as Model Context Protocol servers that any MCP-capable system can call.
- Deploy anywhere
- A Mastra app runs on any Node.js host or as a standalone server, with optional deployers for Vercel, Netlify and Cloudflare, or on Mastra Cloud.
Where it runs
- Web
What it works with
- Next.js
- React
- Node.js
- Vercel
- Netlify
- Cloudflare
- Hono
- Express
Mastra is made by Mastra, and has been around since 2024.
Part 04 · Standing
Where it stands
Its grades against its category, and whether to keep it or make your own
88/101
Other AI agents it is graded above
Mastra's GPA of 2.8 is higher than 88 of the 101 other AI agents we grade, and level with 8.
It stands best on value for money (A, above 91 of 101) and worst on ease of use (D, above 0).
Its paid plans start at $25 a month, against a middle price of $22.13 for the category: 36 of the 65 others that charge start lower.
On features, ease of use and platforms it scores 2.3 out of 4. 20 tools score higher and cost less.
Each grade against the category
Every bar is all 102 AI agents we grade, cut by the letter each got. Mastra’s own letter is outlined.
- AValue for moneyAbove 91 of 101
- BFree plan and trialAbove 82 of 101
- BFeaturesAbove 69 of 101
- DEase of useAbove 0 of 101
- BPlatforms and integrationsAbove 20 of 101
Price against what you get
Each dot is one of 70 AI agents. Further left costs less; higher up scores better on features, ease of use and platforms. Mastra is the marked dot.
What paid plans start at, a month (each step along is roughly double) →
Keep it, or make your own?
Whether this is something you could build for yourself with an AI app builder, and what you would give up.
Keep it
To replace Mastra you would be making an AI agent, with the models and the safeguards behind it. That is not a weekend's work, with an AI app builder or without one.
It is one of the better ones too: its GPA of 2.8 is higher than 88 of the 101 other AI agents we grade. It costs $300 a year. Mastra is open source, so there is a third way: take its code and run it yourself.
What you could not
- An AI agent, with the models and the safeguards behind it.
- Connections to other products, each kept working as those products change.
- The depth: we grade its features B, which means it covers the whole job.
What this rests on. Mastra’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
Part 05 · Alternatives
The alternatives
The tools it is most often weighed against, side by side
CrewAI, Letta, Langflow, Vellum and Dify
The 5 tools Mastra is most often weighed against, with where each one differs from it.
- 2.2GPA
CrewAI
Free plan
Multi-agent platform to build, run and govern AI agents.
- Mastra is self-hostable, according to its own site.
- CrewAI also covers no-code.
- 2.0GPA
Letta
Free plan · from $20/mo
Stateful agents with long-term memory, from the MemGPT team.
- Mastra is self-hostable, according to its own site.
- 2.8GPA
Langflow
Free plan
Open-source visual builder for AI agents and MCP servers.
- Only Langflow lists macOS, Windows and Linux apps.
- Mastra also covers workflow automation.
- Langflow also covers templates.
- 2.6GPA
Vellum
Free plan · from $30/mo
Personal AI assistant with long-term memory that acts across apps.
- Only Vellum lists macOS, Windows, iOS and Android apps.
- Only Vellum lists a browser extension.
- Vellum also covers chat assistant.
- 2.2GPA
Dify
Free plan · from $590/yr
Open-source platform for building AI agents and agentic workflows.
- Dify also covers no-code.
Part 06 · Questions
Quick answers
The questions people ask about it, each answered in a line or two
12
Questions, each answered in a line or two
The short version of everything above, for when you only need the answer. Each one is told in full in its part of the guide.
Is Mastra free?
Mastra has a free plan. Unlimited agents, users and deployments, 100K observability events, 1 GB egress, 5 connections and 15-day trace retention.
How much does Mastra cost?
Mastra lists 4 plans. Free: $0.
What platforms does Mastra work on?
Mastra is available on Web.
Does Mastra have an Android app?
No Android app was listed when its pages were read on Nov 12, 2026. Mastra is listed for Web.
Does Mastra have an iPhone app?
No iPhone app was listed when its pages were read on Nov 12, 2026. Mastra is listed for Web.
Is Mastra open source?
Yes. Mastra is open source, according to its own site.
What does Mastra integrate with?
Mastra's listing names Next.js, React, Node.js, Vercel, Netlify, Cloudflare, Hono and Express.
Who makes Mastra?
Mastra is made by a company of the same name. It dates from 2024.
What are the alternatives to Mastra?
The closest alternatives to Mastra in our directory are CrewAI, Letta, Langflow, Vellum and Dify.
How does Mastra compare with other AI agents?
Mastra's GPA of 2.8 is higher than 88 of the 101 other AI agents we grade, and level with 8.
Is Mastra good value for money?
ToolGPA grades Mastra A for value for money. Its paid plans start at $25 a month, against a middle price of $22.13 for the category: 36 of the 65 others that charge start lower.
Could I make my own version of Mastra?
To replace Mastra you would be making an AI agent, with the models and the safeguards behind it.
Where this guide comes from
The prices, plans, platforms and features were read from Mastra’s own pages on Nov 12, 2026, and the grades were given on Nov 12, 2026. Graded from this listing, whose facts were read from Mastra's own pages on 12 November 2026. Not based on using the product, and shorter than our full reviews.
Every tool we list gets five grades, A to F, each with its reason, and a GPA that averages them. How each is decided is at toolgpa.com/grades. This guide is ToolGPA’s own work; it is not made, paid for or approved by Mastra. Prices change, so check mastra.ai before you buy.
Part 07 · About
About ToolGPA
Who made this guide, what else is on the site, and how to cite it
5,038
Tools graded, in 95 categories
ToolGPA grades software the way a school report grades a pupil: five subjects, a letter for each with the reason written beside it, and a GPA that averages them. Prices, plans and platforms are read from each maker’s own pages and dated, so you always know how fresh a figure is.
Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Every tool on the site has a guide like this one, free to download and pass on. It all lives at toolgpa.com.
5,038
tools graded
95
categories
739
price changes on record
579
apps priced in 12 countries
What else is on toolgpa.com
- Mastra, kept up to dateEverything in this guide, with prices and grades as they are todaytoolgpa.com/tools/mastra
- How grades are givenThe rules behind every letter and every GPAtoolgpa.com/grades
- Value chartsWhat each tool costs against what it scores, for every categorytoolgpa.com/charts
- CompareAny two tools side by side, plan by plantoolgpa.com/compare
- Price changesEvery price rise and cut on record, each with its sourcetoolgpa.com/price-changes
- Prices by countryWhat apps cost on the App Store in 12 countriestoolgpa.com/prices-by-country
- Pay lessEvery public discount: yearly billing, students, nonprofitstoolgpa.com/save
- Keep or makeWhich tools are worth paying for, and which you could build yourselftoolgpa.com/keep-or-make
Scan for the live page
Prices and grades as they are today
Quoting this guide?
Please name ToolGPA and link to the live page, so readers can check the figures for themselves:
ToolGPA, "Mastra: The Insider's Guide", checked Nov 12, 2026. https://toolgpa.com/tools/mastra
Know someone choosing between AI agents?
Send them this guide: toolgpa.com/tools/mastra/guide
ToolGPA elsewhere: youtube.com/@toolgpa
See our other guides
The best-graded AI agents after Mastra, each with an Insider's Guide of its own.
- AI Agents Insider's GuideEvery one of the 102 AI agents we grade, compared
- Genspark Insider's GuideAI workspace with an agent for research, slides, sheets and docs3.2 GPA
- Manus Insider's GuideGeneral AI agent for research, slides, websites and browser tasks3.2 GPA
- OpenClaw Insider's GuideOpen-source personal AI agent you run yourself and message in chat3.2 GPA
Choosing software? Every tool graded, every price dated.
Compare tools at toolgpa.com ›Everything in this guide is ToolGPA’s own summary of what Mastra’s pages, its app-store listings and public reviews said on the dates shown. Grades are our judgement under the rules at toolgpa.com/grades. Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Mastra is a trademark of its owner, and this guide is not made, paid for or approved by Mastra. Prices and plans change: check mastra.ai before you buy.