Discover skills, MCP servers, and plugins—with compatibility evidence for the agent you use.
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Protocol-compatible MCP servers are clearly labelled; verified integrations stay distinct.
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AgentStack is a searchable, source-linked directory of 18,250 active agent tools: 1,575 skills, 16,628 MCP servers, and 47 plugins. We index public sources so builders can compare tools in one place.
An agent skill is usually a reusable SKILL.md document: instructions, workflows, and context that teach a coding agent how to handle a focused task. A skill can be installed into supported agent environments or read directly before use.
Open a listing and use its installation command when one is provided. For every listing, AgentStack also links to the original package or repository, so you can confirm the current setup steps and review the source before installing.
Browsing AgentStack is free and needs no account. Each listing is independently maintained, so its license, pricing, and requirements come from its original publisher—always check the source page before adding a tool to an agent.
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Access book collections, reading lists, and bookshelf recognition from AI assistants.
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MCP server for controlling the Xojo IDE on macOS
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An MCP server that used to create notes
FastMCP server for Tavily search API with web search and content extraction
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Web design analysis with 26 MCP tools: layout, motion, quality, semantic search via pgvector
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MCP server for no-payment x402 surface triage, 402 Index health checks, and paid review handoff.
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Local-first MCP security scanner and CLI for AI-generated applications.
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Reddit MCP server with full read/write - posts, comments, search, and content creation.