# Mastra

Mastra is an open-source TypeScript framework for building AI agents and apps. It provides agents, workflows, memory, tools, MCP support and observability, with Mastra Studio for building and testing agents. The framework is licensed under Apache 2.0 and can be self-hosted or run on Mastra Cloud.

Page: https://slateindex.ai/brand/mastra · data of 2026-11-03

## Facts

- Founded: 2024
- Headquarters: San Francisco
- Employees: 11–50
- Company type: Private, venture-backed
- Latest funding: Series A
- Deployment: Self-hosted on any Node.js-compatible environment, or hosted on Mastra Cloud and Mastra Platform.
- Best for: Developers and teams building AI agents in TypeScript and JavaScript

## Products

- Agents: Define typed agents with instructions, models, tools and runtime behavior in one place.
- Workflows: Compose typed steps, retries and branches into production workflows that teams can inspect and ship.
- Harness: Coordinates multi-mode agents with shared state, threads and storage.
- Memory: Gives agents durable context with observational memory, semantic recall and thread-aware storage.
- Server: Registers agents and workflows on one Mastra server that runs locally or deploys to Mastra Cloud.
- Factory: A system of specialized AI agents that takes software from issue to production.
- Observability: Traces, metrics, logs, evals, datasets and scorers for agent runs in production.
- Mastra Studio: Interface for building, testing and managing agents, workflows and tools.
- Mastra Platform: Hosted tier with observability, studio users and deployments, offered on Starter, Teams and Enterprise plans.

## Rankings

| Category | Rank | Visibility | Mentions |
|---|---|---|---|
| AI Agents | 56 of 80 | 1.2 | 3 |

## By engine

| Engine | Visibility | Mention rate |
|---|---|---|
| chatgpt | 0.0 | 0.0% |
| google_ai_mode | 1.7 | 3.7% |
| perplexity | 1.9 | 7.4% |

## Definitions

- Visibility (0–100): how often and how high AI answers name the brand, weighted by position.
- Mention rate: share of collected AI answers that name the brand.
- Share of voice: the brand's mentions as a share of all brand mentions in the category.
- Citation authority: share of answers naming the brand that cite the brand's own site.

Cite as: SlateIndex, “Mastra AI visibility profile”, https://slateindex.ai/brand/mastra, data of 2026-11-03. Licence: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/).