Mastra
mastra.ai
Actively hiring
AI Evaluation & Observability
AI Development Tools
AI Agents
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Overview
News
Technologies
Salaries
Products
People
Growth
Offices
Jobs
Financials
Funding and backers
Team
51-200
employees, estimated range
Hiring now
2
+1 posted in 30 days
Backers
2
Y Combinator, All rights reserved
Momentum
43/100
hiring for its size, in the news, rising traction
Last sign of life
this month
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Jun 10, 2025
Launched on Hacker News Show HN: A “Course” as an MCP Server
Jan 2025
Went through Y Combinator
2024
Founded
Tractionpublic signals, read monthly
Registers and programsofficial lists and records that name the company
| Legal entity | Kepler Software Inc. | its site |
Backed byfrom the funds' portfolios and accelerator catalogs
Y Combinator 
All rights reserved Investors in similar startupsfunds that back the companies most like this one
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Overview
Mastra is a TypeScript-first platform and framework for building, running, observing, and iterating production AI agents and agentic workflows. It provides an agent builder, typed agents, composable workflows, a harness for coordinating multi-mode agents, durable memory, a server with cloud deployment options, and built-in observability (traces, metrics, logs, evals, datasets) so teams can ship and monitor long-running agent systems. The product is developer-focused, supports local and cloud deployments, and is used by startups and large organizations to automate internal workflows and customer-facing automation.
News
Mastra Factory: from issue to production Mastra
Mastra Factory is an open source, agent-powered software delivery environment. Persistent coding agents, repository workspaces, issue intake, planning, implementation and pull request review, in a web application you control.
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Report
Microsoft Attributes Mastra AI Supply Chain Attack to North Korea
North Korean threat actor Sapphire Sleet has been linked to a supply chain attack targeting Mastra, according to Microsoft security researchers
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Report
North Korean Hackers Poison Mastra AI Framework
Microsoft says North Korean-linked BlueNoroff compromised a Mastra npm maintainer account and published more than 140 malicious packages, using a software
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Report
Microsoft links Mastra AI supply chain attack to North Korean hackers
Microsoft has attributed a recent Mastra AI supply chain attack that compromised more than 140 npm packages to the North Korean hacking group Sapphire Sleet, also known as BlueNoroff.
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Report
Mastra Attack Targets Crypto, Password Managers, Authenticators, and Zapier
A malicious transitive dependency hit 140+ npm packages, with tradecraft matching the Axios compromise
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Report
Mastra npm Supply Chain Attack: 140+ Packages Backdoored via easy-day-js Typosquat - StepSecurity
On June 17, 2026, an attacker compromised the @mastra npm organization and quietly added easy-day-js as a dependency across 140+ packages in the Mastra AI framework ecosystem. easy-day-js is a typosquat of the popular dayjs date library, and its latest ve
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Mastra AI Framework Poisoned in npm Supply-Chain Attack
The popular Mastra AI framework, used to build artificial intelligence agents, workflows and retrieval-augmented generation pipelines, has been poisoned by
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Report
Mastra npm Org Compromised: Multiple Packages Trojanized to Drop a Remote Payload via easy-day-js Blog Endor Labs
A single hijacked maintainer account pushed multiple trojanized packages across the entire @mastra scope in 27 minutes, each carrying a typosquat dependency that runs a remote payload on install. Combined reach is over 28 million downloads a month.
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How to Structure Projects for AI Agents and LLMs Mastra Blog
Learn how Mastra is optimized for modern AI systems, and how to implement a similar approach.
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Show more news
Tech stack
Technologies named in job postings at Mastra over the last 12 months, by layer, with the share of postings for each.
Technologies in use
8
Postings analysed
5
Stack modernity
80/100
Languages
TypeScript
JavaScript
Cloud & platforms
Figma
GCP
GitHub
Kubernetes
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Full Mastra tech stack
8 technologies · by team · pay by technology · changes · similar stacks
Growth
Hiring Momentum
78/100
Scaling fast
Open positions
2
1 opened / 2 closed in 30 days
Median time-to-fill
60 days
faster than 22% of the market
ATS activity
Every ~4 hours
Today
Hiring Dynamics
+100%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
AI/ML
20% ▲
Product
20% ▼
Design
20% ▼
Legal
20% ▼
Solutions
20% ▲
Activity Timeline
Added Mastra to stack
Sep 2026
Added LinkedIn to stack
Sep 2026
Added GitHub to stack
Sep 2026
Added JavaScript to stack
Aug 2026
Added npm to stack
Aug 2026
Added Figma to stack
Aug 2026
Offices
Where the company hires and what each office is for
Cities
1
Hiring now
0
Countries
1
San Francisco
United States
HQ
50-200 est. staff
Jobs
Remote (likely United States, European time zones hours) • Full-Time
JavaScript
TypeScript
AI Agents
Mastra
Frontend
npm
Apply
Remote (likely United States, European time zones hours) • Full-Time
JavaScript
TypeScript
AI Agents
Mastra
Frontend
npm
Apply