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What is Mastra?

Mastra is an open-source TypeScript framework designed to help software developers build production-ready AI agents, intelligent applications, and autonomous workflow systems. The framework provides a modular development environment for defining AI agents with configurable instructions, language models, tools, memory, and runtime behavior. Its agent execution capabilities allow applications to process user requests, reason about complex problems, select appropriate tools, and perform actions across connected systems. Mastra's workflow engine enables developers to organize operations into structured steps with branching logic, retries, error handling, and persistent execution state. Human-in-the-loop functionality allows workflows to pause for user input or approval and resume execution without losing their previous progress. Its memory system supports conversation history, structured working memory, semantic retrieval, and observational memory that summarizes previous interactions to maintain useful context. The platform also provides an agent harness for coordinating long-running agents with multiple operating modes, shared state, persistent threads, and task management capabilities. Model integration features enable developers to work with different AI providers through a unified router, while Model Context Protocol support connects agents to external tools, resources, and compatible applications. Built-in observability includes distributed tracing, execution logs, latency measurements, token usage monitoring, cost tracking, and detailed visibility into model calls and tool interactions. Its evaluation framework supports automated scoring, test datasets, experiments, feedback collection, and regression testing to help development teams measure and improve agent performance.

What is Cosmos Software Factory Agent?

Harness is a business formed in 2017 in the United States that's known for a software product called Cosmos Software Factory Agent. The Cosmos Software Factory Agent product is SaaS software. Cosmos Software Factory Agent is AI coding agents software. Cosmos Software Factory Agent offers a free version. Product cost starts at $0. Alternative competitor software options to Cosmos Software Factory Agent include Blitzy, Devin, and 8090 Software Factory.

Media

Media

No images available

Integrations Supported

AG-UI
Alkemi
Apify
Cerebras
Claude
Claude for Legal
Dock
Ejentum
GPT-4o
Gemini
Groq
Keenable
Llama
Mistral AI
Model Context Protocol (MCP)
OpenAI
OpenUI
TypeScript

Integrations Supported

GitHub
Jira

API Availability

API Availability

Pricing Information

Free
Open source
Free Version

Pricing Information

$0
A free Harness platform tier includes access without module restrictions.
Free Version

Supported Platforms

SaaS
Windows
Mac
On-Prem
Linux

Supported Platforms

SaaS

Customer Service / Support

Not specified

Customer Service / Support

Not specified

Training Options

Documentation Hub

Training Options

Not specified

Company Facts

Organization Name

Mastra AI

Date Founded

2024

Company Location

United States

Company Website

mastra.ai/

Company Facts

Organization Name

Harness

Date Founded

2017

Company Location

United States

Company Website

www.harness.io/products/cosmos-software-factory-agent

Categories and Features

Agentic AI

Not specified

AI Agent Builders

Not specified

AI Agent Frameworks

Not specified

AI Agents

Not specified

AI Orchestration

Not specified

Categories and Features

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