Free alternatives to mastra
50 free AI Skills apps to use instead, best rated first.
Top picks
- B

batch-grill-me
Getbatch-grill-me is an agent skill from Matt Pocock's skills collection, listed on skills.sh. It interviews you relentlessly about a plan until you share an understanding. It maps decisions as a tree and asks every question it can answer now
- W

webapp-testing
GetNative Python Playwright scripts for testing local web applications with server lifecycle management. Includes with_server.py helper to automatically start and manage single or multiple servers before running automation scripts. Supports re
- C

content-research-writer
GetAssists in writing high-quality content by conducting research, adding citations, improving hooks, iterating on outlines, and providing real-time feedback on
- O

openhue
Getopenhue is an agent skill from the OpenClaw project, listed on skills.sh. It lets an agent control Philips Hue lights and scenes through a Hue Bridge with the OpenHue CLI: turn lights on and off, dim rooms, set scenes such as movie mode, an
- I

implement
Getimplement is an agent skill from Matt Pocock's skills collection, listed on skills.sh. It implements work from a spec or tickets: it fetches the ticket, works test-first at agreed seams, runs type checks and tests as it goes, reviews the re
- F

frontend-design
GetDistinctive, production-grade frontend interfaces that reject generic AI aesthetics through intentional design choices. Guides aesthetic direction selection (brutalist, maximalist, retro-futuristic, luxury, organic, etc.) before implementat
More AI Skills apps
About mastra

mastra
Reference guide for building agents and workflows with current Mastra APIs
Mastra is an agent skill that serves as a reference guide for building AI agents and workflows with the Mastra framework. Its most important instruction is to distrust what the model already knows about Mastra. The skill says that APIs, constructor signatures and patterns change quickly between versions, so before writing code the agent must verify against the documentation that ships with the installed package, found in node_modules under the @mastra packages' dist docs folder, or against the remote documentation index on mastra.ai. The skill begins with a prerequisites check that lists the installed Mastra packages in node_modules. Once it has the current docs, it covers the framework's building blocks: agents, workflows, tools, memory, workspaces and storage. It is intended for developers building AI applications in TypeScript with Mastra, who want generated code that matches the version they have installed instead of older examples. The skill is listed on skills.sh under the mastra-ai skills repository, which has about 96 stars, with about 74.0K installs. The skills.sh listing shows Gen Agent Trust Hub, Socket and Snyk all passing.
- Price
- Free
- Made by
- mastra-ai
- Category
- AI Skills
- Website
- github.com/mastra-ai/skills/mastra

