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
SEC filings in your agent: issuers, Reg CF/D/A raises, XBRL financials, insider trades.
AgentStack Sponsors
Reach AI-agent builders
Connect your Uber Conta by Digio account to AI via Brazil's Open Finance: balances, statements, card
AgentStack Sponsors
Reach AI-agent builders
IRS income & tax stats by ZIP in your agent: AGI distribution, tax, credits, deductions.
AgentStack Sponsors
Reach AI-agent builders
AI continuity and memory hub: memories, profiles, rules, context, decisions, tasks, and checkpoints.
City of Cupertino GIS — Cupertino, California open geospatial data (ArcGIS).
AgentStack Sponsors
Reach AI-agent builders
Personal todo list that persists across sessions and MCP clients. Create, update, complete, reorder,
GCC regulatory intelligence, ZATCA e-invoicing, and Arabic NLP for AI agents
AgentStack Sponsors
Reach AI-agent builders
City of Dublin GIS — Dublin, Ohio open geospatial data (ArcGIS).
AgentStack Sponsors
Reach AI-agent builders
Fail-closed verify-before-you-act gate for AI agents. Signed receipts. Pay-per-call via x402.