Mastra
eDR94 out of 100, Top 25%. Effective DR. Open the scores section.Effective DR: 94/100. Top 25%. Measured by StartupHub.ai. Median 68.Agent74 out of 100, Top 25%. Agent Readiness. Open the scores section.Agent Readiness: 74/100. Top 25%. Measured by StartupHub.ai. Median 41.An open-source TypeScript/JavaScript framework for building AI agents, from the creators of Gatsby.
About
Mastra is an open-source TypeScript framework for building AI-powered applications and autonomous agents. It provides a comprehensive developer toolkit for prototyping to production-ready deployment, integrating with frontend and backend JavaScript/TypeScript ecosystems like React, Next.js, and Node.js. Mastra enables developers to build, tune, and scale reliable AI agents that can reason, use tools, manage context and memory, and incorporate human-in-the-loop workflows.
Listed competitors
Mastra is a TypeScript-native framework, while LangChain is primarily Python-based, offering a more streamlined experience for JavaScript/TypeScript developers.
Fetch.ai focuses on decentralized autonomous AI agents, whereas Mastra provides a framework for building and deploying AI agents within traditional software development environments.
Stability AI is a leader in generative AI models for media creation, while Mastra is a framework for building AI agents and applications that can leverage various AI models.
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Public companies
Mastra provides a framework for building AI agents, which can include coding assistants, competing with products like GitHub Copilot for developer mindshare and tooling budgets.
Competing product: GitHub Copilot
Mastra is used by platform teams at companies like MongoDB to automate DevOps and SRE work, indicating a potential overlap in providing tools for developers and operations.
Competing product: MongoDB Atlas
Salesforce uses Mastra for its agentic IDE, suggesting that Mastra competes with Salesforce's internal AI development efforts and potentially its broader AI offerings.
Competing product: Salesforce Einstein
Key facts
- Website
- mastra.ai
- Headquarters
- San Francisco, United States
- Founded
- 2024
- Employees
- 56
- Total funding
- $36M (Series A)
- Business model
- B2B
Mastra pricing
| Plan | Price |
|---|---|
| Starter100K observability events then $10 per 100K, 24 CPU hours then $0.35 per hour, 15 days data retention | $0 / month |
| Teams1M observability events then $8 per 100K, 250 CPU hours then $0.25 per hour, 6 months data retention | $250 / month |
| EnterpriseCustom volume and retention, RBAC, audit logs, SSO and IAM integration, Support and uptime SLAs with dedicated support engineer | Custom |
Apache 2.0 licensed self-hosted framework available for free to build and host agents anywhere. Enterprise licensed self-hosted available with flat annual fee, data stays in VPC and no per-trace or per-seat metering.
Plans as published by Mastra, checked September 2026. Current prices on mastra.ai
Funding rounds
| Date | Round | Amount | Lead investors |
|---|---|---|---|
| 9 Apr 2026 | Series A | $22M | Spark Capital |
| 8 Oct 2025 | Seed | $13M | Y Combinator |
| 1 Jan 2025 | Undisclosed round | $500K | Y Combinator |
Tech stack
Detected on mastra.ai, last scanned 9 Nov 2026. Run your own scan
- Frontend
- Next.js, Tailwind CSS
- CDN
- Vercel
- Email provider
- Google Workspace
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Frequently asked
What is Mastra's Effective Domain Rating?
StartupHub's Effective Domain Rating for Mastra is 94 out of 100, measuring real cross-surface visibility in search engines and AI answers rather than claimed link authority. That is underrated against its Ahrefs Domain Rating of 76, meaning it surfaces in search and AI results more than its claimed authority alone would suggest.
Is Mastra trustworthy and reputable?
StartupHub's Data Trust & Reputation score for Mastra is 83 out of 100, a trusted rating, based on site security posture, privacy practices, malware and phishing checks, and public reputation signals.
How much funding has Mastra raised?
Mastra has raised a total of $36M in funding. The most recent round on record is Series A.
How many employees does Mastra have?
Mastra has approximately 56 people on record.
A tool we built
AI Agent Readiness
Score how well an agent can read and use a site: llms.txt, MCP, schema, and payments. Use it before you claim a site is agent-ready.
Need it connected to Mastra or your own stack? Ask for a custom integration. We reply within 2 days.
Developer Tools
Creative Software
A global leader in digital payments, enabling individuals and businesses to send, receive, and manage money online.
FinTech
Global professional services firm offering expertise in risk, strategy, and people through insurance, consulting, and advisory services.
Professional Services
Human Resources Technology
FinTech
Confirmed customers of Mastra.
SEC filings, insider activity, nonprofit links and pay benchmarks for Mastra:
Company details: from public sources. Funding: no announced round on file. Ownership: not yet claimed by the company. Scores: measured by named tools; each links to its method. Our rules
