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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Deterministic date arithmetic with auditable receipts: business days, due dates, holidays.
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18 Google Maps tools for AI agents — geocode, search, directions, weather, and more.
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Federal and state court records lookup for due-diligence and background checks.
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MCP server giving AI agents one-connection access to labor & financial-compliance data: DOL Form 550
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Connect your MetaTrader 5 accounts to Claude: trading, market data, account management.
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Japanese holiday and business-day calculations using official Japan Cabinet Office data.
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A cited wiki of your GitHub repo: search, read pages, find symbols and ask, with line citations.