Discover skills, MCP servers, and plugins—with compatibility evidence for the agent you use.
18,250+ active tools · Source-synced directory Fresh tools →
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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.
Analyzes multiple provided pages to identify keyword overlap and
Tested financial & practical calculators as free, no-auth MCP tools for AI agents.
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Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Claude's capabilities with specialized knowledge, workflows, or tool integrations.
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French address quality, geocoding & routing from official data (BAN, INSEE, OpenStreetMap).
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Free public web freshness and response-metadata checks for AI agents.
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Trade stock, crypto, and options on Robinhood, ETrade, Webull, Charles Schwab, Coinbase, or Kraken.
Discover and query every business on ANOTS — search, ask, or find-and-ask over MCP.
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SEO MCP server for keyword research, SERP analysis, audits, and Search Console workflows.
Semantic search over MINDSET's brand strategy topic database, plus its system prompt.
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Belgium Peppol BIS 3.0 e-invoices for AI agents: send, check recipient, get delivery proof.
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RENT-ranked covered-call, CSP & wheel income ideas, your positions & Greeks. Never places orders.