Mastra
Public facts only, each with its source.
On this page
Not everything
Not everything we held. Some facts on this page rested only on Web Summit's site, which we may not republish; on 11 November we took them off. What you see has another public source, each cited. A fact comes back when we find one. How items come back
| Website | mastra.ai |
| Filed under | Developer tools |
About Mastra
Mastra, based in the United States according to Web Summit (1), makes a TypeScript framework for building AI agents and apps (2, 3). It gives agents memory, tools and workflows, and lets teams trace and test how they behave in production, it says (2). Web Summit's page describes it as open source (1).
Sources for this section:
- Web Summit, "Mastra" (based in the United States; its pitch), read 9 November 2026
- Mastra, "TypeScript AI Framework for Agents and Apps", read 9 November 2026
- Mastra Docs, "Get started with Mastra", read 9 November 2026
From the newsroom
How WPP turns call transcripts into reviewed Jira plans, 10 November 2026
Its products
- Mastra (agentic): A TypeScript framework for building AI agents and applications. (mastra.ai/docs, read 2026-11-06) · its flow
Its flows, and where AI agents are in them
How work moves through Mastra's product, as its public pages describe it, and the steps where an AI agent acts (1 step with an AI agent in it, marked AI agent here). Each step cites its source.
A developer builds an AI agent with Mastra
As its getting-started page describes it: Mastra is a TypeScript framework for building AI agents and applications. The page also carries instructions addressed to coding agents; those are its content, not part of this map. (mastra.ai/docs, read 2026-11-06)
- The developer: Creates a Mastra project and installs its core package. (mastra.ai/docs, read 2026-11-06)
- The developer: Defines an agent with its model, named as provider/model. (mastra.ai/docs, read 2026-11-06)
- The developer: Gives the agent tools, each defined with createTool: an id, a description, an input schema and an execute function. (mastra.ai/docs, read 2026-11-06)
- The agent: Runs, choosing tools to call; each call is validated against the tool's input schema and executed with a context the runtime provides (tracing, cancellation and request data). AI agent here: Decides which tools to call to do its task. (mastra.ai/docs, read 2026-11-06)
Our question for them
As for every company we follow, three questions, not claims. We have not asked Mastra yet. When they answer, it goes here.
- Reach What can their AI agents (or their customers' agents) actually reach?
- Mandate What were they authorised to do?
- Gap Who controls the gap between the two?
Where this comes from
- websummit.com/appearances/lis26/13b2231c-2780-4a17-9992-7171d18f103d/…, read 2026-11-01 by the team's curator: LIS26 appearance page: name, country, industry, website.
- websummit.com/startups/featured-startups/, read 2026-11-01 by the team's curator: listed on the 2026 featured startups list with its elevator pitch (the "what" field).
- mastra.ai/docs, read 2026-11-06 by the team's curator: Mastra Docs, "Get started with Mastra", read 6 November 2026: a TypeScript framework for building AI agents and applications; an agent, its model as provider/model, and tools defined with createTool (the flow build-an-agent).
Re-checked by newsroom@web-summit.dinis on 2026-11-05 at 01:46 UTC: the summit's page answered and is still live; the company's website answered and is live.
Taken from the team's company map (data/companies.json on web-summit.sgit.ai), public facts only. The team's own notes on each company (why it matters, whether to meet, who owns it) are not facts about the company and are not published here. Something wrong? Tell us and we correct it on this page, dated.
About PrompTugal.news
PrompTugal.news: People and AI agents, reporting together. Every fact sourced and dated, for the people who are there. Edited by Dinis Cruz, Indi Gupte and Vicky Wang, made with AI agents. Web Summit is named only to say where we report from. Text CC BY 4.0, code Apache-2.0.
- Why this page exists. We keep a page on every company we follow at the summit, built only from public pages, so that anyone, Mastra included, can see what we know and where it comes from. Nothing on it is an endorsement.
- Independence. Independent. Not affiliated with Web Summit. The team that makes PrompTugal.news also works on RiskMandate, so we are independent of Web Summit, not of RiskMandate. Our disclosure says it in full; please weigh what we say with it in mind.
- Corrections. If something here is wrong or out of date, we correct it on this page, dated. We publish no contact details and nothing about a person that is not already public and professional.
- More. About PrompTugal.news, all the companies, the summit.
The same, as data: companies/mastra.json and its graph, graph/companies/mastra.json (how to read them: the data, as JSON).