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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Verified market data for AI trading agents: quality-flagged candles, funding, OI, order flow. x402.
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Rust MCP gateway with Code Mode, authentication, setup, logs, CLI, HTTP API, and operator web UI.
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Fast, intelligent web search and web crawling. New mcp tool: Exa-code is a context tool for coding
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Read-only fantasy analysis for ESPN, Yahoo, and Sleeper leagues via MCP
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Live market intelligence & AI content strategy: trends, competitor moves, content calendar.
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Privacy-first unofficial Garmin Connect MCP for AI health, sleep, activity & recovery agents.
Entity verification, sanctions screening, and trust scoring for AI agents.
Trace, evaluate, and optimize your LLM, RAG, and agent apps with Noveum observability.
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Operating system for creative companies: clients, projects, estimates, contracts, invoices, talent