Discover skills, MCP servers, and plugins—with compatibility evidence for the agent you use.
18,250+ active tools · Source-synced directory Fresh tools →
Choose your environment
Protocol-compatible MCP servers are clearly labelled; verified integrations stay distinct.
Explore the directory
Helpful context
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.
AgentStack Sponsors
Reach AI-agent builders
Deterministic fact verification for AI agents — checksums & curated data, not guesses.
AgentStack Sponsors
Reach AI-agent builders
Search and manage 220M+ B2B contacts. Filter by title, industry, location, and more.
AgentStack Sponsors
Reach AI-agent builders
A MCP Server for BMC Helix ITSM API.
AgentStack Sponsors
Reach AI-agent builders
CUDA-Q docs, API reference, and runnable examples for AI agents, pinned to your installed version.
AgentStack Sponsors
Reach AI-agent builders
Real-user Core Web Vitals from the Chrome UX Report (CrUX) API for any origin or URL.
AST-based Python refactoring MCP server with safe automated refactorings and rollback
AgentStack Sponsors
Reach AI-agent builders
MCP server for SQLCipher 4 encrypted SQLite databases with full CRUD operations and query support
Stdio MCP proxy: intercepts oversized tool results into a queryable embedded DuckDB.
AgentStack Sponsors
Reach AI-agent builders
Unofficial MCP server for managing Healthchecks.io checks via the Management API