Mastra 的 TypeScript Agent 框架赌注：GitHub 病毒式传播，1300 万美元种子轮，2200 万美元 A 轮

做的是什么生意

Open-source TypeScript framework and hosted platform for building AI agents: workflows, agents, RAG, memory, evals, tracing, observability and one-click deployment.

启动资金：$13M seed announced Oct 8, 2025 from YC, Paul Graham, Gradient Ventures and 120+ founders and funds; $22M Series A led by Spark Capital announced Apr 9, 2026 — $35M total.

起因

After a weekend NYC AI hackathon in October 2024, Gatsby co-founder Sam Bhagwat and core teammates Shane and Abhi concluded the tooling for building agents 'just sucked' and decided to build it themselves. They joined YC's Winter 2025 batch, and by mid-February the project was taking off: it went viral on Hacker News and GitHub, going from 1,500 to 7,500 stars in a week.

经过

Mastra raised a $13M seed announced October 8, 2025, with YC, Paul Graham, Gradient Ventures and 120+ investors, and was called the third-fastest-growing JavaScript framework ever by NPM downloads. Replit's Agent 3, SoftBank, Adobe, PayPal, Elastic and Docker adopted it; Marsh McLennan's agentic search reached 100k+ daily users. Mastra 1.0 shipped January 20, 2026, and on April 9, 2026 the company announced a $22M Series A led by Spark Capital (total $35M) plus a paid platform: Studio, Server and Memory Gateway.

结果

Scaling: 27.6k GitHub stars by August 2026, Mastra 1.0 in January 2026, $35M raised, and a commercial platform layered on an Apache-2.0 framework used by Replit, SoftBank, Brex, Indeed, Workday and Salesforce.

可借鉴之处

一个值得信赖的开源团队能把开发者的痛点变成一场运动：通过 HN 和 GitHub 走红，让框架成为核心依赖，然后才在平台商业化。