Open source alternatives to mastra
24 open source AI Skills apps to use instead, best rated first.
Top picks
- G

github-ops
Getgithub-ops is an agent skill from the ECC collection by affaan-m, listed on skills.sh. It manages a GitHub repository with a focus on community health, CI reliability and the experience of contributors. It covers triaging issues by classify
Open source
- O

opensource-pipeline
Getopensource-pipeline is an agent skill from the ECC collection by affaan-m, listed on skills.sh. It prepares a private project for safe public release through a three-stage pipeline. The fork stage strips secrets from a copy. The sanitise st
Open source
- A

andrej-karpathy-skills
Getandrej-karpathy-skills is a single CLAUDE.md file from the multica-ai project that is meant to improve how Claude Code behaves on coding tasks. It is derived from Andrej Karpathy's public observations about LLM coding pitfalls. The file dis
Open source
- M

microsoft/markitdown
Getmarkitdown-mcp is the MCP server package for MarkItDown, Microsoft's tool for converting many file formats to Markdown for language models. It is a lightweight server that runs over stdio, Streamable HTTP or SSE, and exposes one tool, conve
Open source
- O

od-contribute
Getod-contribute is an agent skill in the OpenDesign project that provides a guided, one-click contribution flow to the OpenDesign repository, written so that people without a coding background can send a real pull request. It is locked to the
Open source
- G

github-deep-research
Getgithub-deep-research is an agent skill from the DeerFlow project that researches a single GitHub repository in several rounds and writes a report in Markdown. It is for requests that need more than a README summary, such as a comprehensive
Open source
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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










