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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Private encrypted agent messaging, hidden state exchange, delegation, and private inbox workflows.
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Database MCP server for MySQL, MariaDB, PostgreSQL & SQLite
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Strava from your terminal. Pipe it, script it, automate it.
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Local-first MCP server for Canvas LMS. Stdio transport, no third-party broker.
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Cognitive browser automation that thinks like your users—and helps AI agents navigate too. Simulate real user cognition with abandonment detection, constitutional safety, chaos engineering, and UX friction discovery. Sites that pass CBrowser's cognitive t
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Market research and competitive intelligence for startup ideas - every finding source-linked.
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UMAP-learn is a tool for fast nonlinear dimensionality reduction and visualization of high-dimensional data, aiding clustering preprocessing and feature embedding.