Top Open Source Projects using Mastra
A curated collection of the 7 best free and open-source projects built using Mastra. Discover popular repositories, architecture patterns, and trending software in 2026.
Autumn
Apache-2.0Simplify Stripe integration for AI startups with 3 functions, 0 webhooks. Build pricing plans in 30 minutes with usage tracking, credits, and feature controls.
Postiz
AGPL-3.0Self-hostable social media scheduler that lets you plan, generate, and publish content across 30+ networks with AI assistance, team collaboration, and automation integrations.
Langfuse
NOASSERTIONLangfuse provides tracing, evaluations, prompt management, and analytics to debug and improve LLM applications.
CopilotKit
MITIntegrate production-ready AI copilots into any product quickly and easily with CopilotKit's open-source platform.
Blinko
GPL-3.0The next generation of open-source AI-powered card notes designed to help you quickly capture and organize inspiration so that ideas never run out.
Arize Phoenix
NOASSERTIONOpen-source platform for LLM tracing, evaluation, and optimization. Features automatic instrumentation, prompt playground, and real-time AI application monitoring.
Agenta
NOASSERTIONOpen-source LLMOps platform providing prompt management, evaluation, and observability tools for building robust AI applications with team collaboration.