Pydantic AI
Build model-agnostic AI agents with typed Python
4.1
Pydantic AI is an open-source Python framework for model calls, agents, tools, structured outputs, validation, streaming, graphs, and observability.
FreeCodeAutomation
Mastra Review 2026: TypeScript Agents, Pricing, Memory, and Fit
An open-source TypeScript framework and platform for agents, workflows, memory, evaluation, and deployment
Recently Updated
Advisor score
8.0/10
Documented editorial evaluation
The decision
Should you choose Mastra?
Mastra earns a shortlist for TypeScript teams seeking an integrated path from code to operations. Start with the framework or Starter, instrument one workflow, set ceilings, and verify export and self-hosting paths.
Best for
TypeScript production agents; Workflows and observability together.
Choose something else if
Buyers ignoring usage meters; Simple single-call apps
Evidence
Editorial research pending · 8.0/10
Pricing checked
From $250 · 2026-09-01
Free access is available, with limits.
Yes. The framework is free and Starter includes limited monthly platform allowances.
Community choice
Recommend Mastra
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Mastra unifies TypeScript agent development with workflows, memory, retrieval, evaluation, observability, and managed deployment, but its many metered layers require careful cost attribution.
Direct verdict
Mastra earns a shortlist for TypeScript teams seeking an integrated path from code to operations. Start with the framework or Starter, instrument one workflow, set ceilings, and verify export and self-hosting paths.
What to verify
Build one durable workflow with memory, retrieval, a tool, approval, schedules, failures, and two models. Measure outcomes, replay, resume, duplicate actions, trace usefulness, data exposure, portability, cold starts, idle compute, and every metered cost.
Personal Recommendation
Mastra earns a shortlist for TypeScript teams seeking an integrated path from code to operations. Start with the framework or Starter, instrument one workflow, set ceilings, and verify export and self-hosting paths.
Try the recommendation
See whether Mastra belongs in your stack
Integrated TypeScript stack
Overall Score
8.0/10
Research Based
- Last reviewed
- Sep 1, 2026
- Last updated
- Sep 1, 2026
Editorial Review Framework
How Mastra scores
Recently Updated
Overall Score
8.0
Ease of Use
7.6
AI Quality
8.0
Features
8.4
Speed
8.0
Integrations
8.4
Value for Money
8.0
Customer Support
7.6
Learning Curve
7.4
Recommended For
- TypeScript production agents
- Workflows and observability together
- Managed versus self-hosted control
Not Recommended For
- Buyers ignoring usage meters
- Simple single-call apps
- Sensitive traces without governance
Recommended Because…
Integrated TypeScript stack
Scores use a 0-10 editorial scale: 9–10 exceptional, 8–8.9 strong, 7–7.9 capable with material tradeoffs, 6–6.9 limited fit, and below 6 not recommended. Scores publish only when a documented evaluation supports them.
Open the optional evaluation worksheet
Reusable trial worksheet
Test Mastra before you commit
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0/7 checks complete
Confirm the tool meets every must-have workflow and stakeholder requirement.
Review starting point: TypeScript production agents; Workflows and observability together; Managed versus self-hosted control
Run the same representative work you would use in production; do not score a polished demo.
Review starting point: Complete three to five representative tasks with known acceptable outcomes and compare them with your current process.
Calculate the effective cost per accepted result, including usage, review, corrections, and required add-ons.
Review starting point: The framework is free. Platform Starter is $0 with 100,000 observability events, 24 CPU hours, 10 GB egress, and 15-day retention before overage. Teams is $250 monthly. Persistent servers, inference, memory tokens, retrieval, databases, and egress add charges. Reviewed September 1, 2026.
Define an acceptance threshold, test known answers and edge cases, and record every correction.
Review starting point: Editorial quality signals: features 4.2/5; AI quality 4.0/5. Validate these signals in your own work.
Verify what data enters the product, who can access it, how long it is retained, and whether it trains models.
Review starting point: Use approved low-risk data first. Check roles, consent, deletion, subprocessors, model-training settings, and the contract—not only the marketing page.
Test the real handoffs, permissions, failure states, and export path your team depends on.
Review starting point: TypeScript, MCP, OpenAI, Anthropic, OpenRouter, OpenTelemetry
Record training, governance, reliability, accessibility, ownership, and change-management risks before rollout.
Review starting point: Many cost meters; Broad migration surface; Enterprise controls are paid
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Product interface evidence
Evaluation
Research-based
Price posture
From $250/month
Reviewed
2026-09-01
No authentic product screenshot is published for this review. DiscoverAI does not use generated interface images as product evidence.
Pricing
Freemium
- Free access
- Yes. The framework is free and Starter includes limited monthly platform allowances.
- Paid entry
- From $250
- Billing and plan model
- Free framework and Starter platform, $250 Teams, and enterprise
- Material limits
- The framework is free. Platform Starter is $0 with 100,000 observability events, 24 CPU hours, 10 GB egress, and 15-day retention before overage. Teams is $250 monthly. Persistent servers, inference, memory tokens, retrieval, databases, and egress add charges. Reviewed September 1, 2026.
Editorial freshness
Recently checked
Pricing and material product claims were checked September 1, 2026.
Pros & Cons
Pros
- Integrated TypeScript stack
- Free framework and starter
- Workflows, memory, evals, observability
Cons
- Many cost meters
- Broad migration surface
- Enterprise controls are paid
Best For
TypeScript production agentsWorkflows and observability togetherManaged versus self-hosted control
Community evidence
How verified users put Mastra to work
Structured, editor-moderated experience—not star ratings. This complements our independent review and never changes its score.
No approved community evidence yet. Be the first verified user to contribute.
Key Features
- Agents
- Typed workflows
- Memory
- Retrieval
- Evaluations
- Observability
Integrations
- TypeScript
- MCP
- OpenAI
- Anthropic
- OpenRouter
- OpenTelemetry
FAQs
Is Mastra free?
The open-source framework is free, and Platform Starter includes limited allowances before overage.
How much is Teams?
Teams is listed at $250 per month with larger allowances and retention.
Is Mastra only TypeScript?
Its framework is TypeScript-first; other systems interact through APIs, MCP, and deployed endpoints.
Can Mastra be self-hosted?
The framework runs on buyer infrastructure; supported enterprise platform deployment uses custom terms.
Keep Deciding
Where to go next
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