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Frequently asked questions

What is AgentStack?+

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.

What is an agent skill?+

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.

How do I install or use a listing?+

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.

Are the listings free?+

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.

Browse taxonomy

Growth & Revenue65

Sales & Outreach16 SEO & Marketing49

Business Operations492

Analytics314 Business Ops178

Build & Ship595

Creative Studio80

Design & Presentations80

Workflows268

#ToolPopularity

mcp-server-r-counter

A MCP Server Counting Number of r's for a Given Query

giveready

Search 41K+ nonprofits, get impact data, submit enrichments, donate USDC via x402.

acikpoz

Turkish public construction unit-price (birim fiyat) catalog PDFs into structured pozes

astronomy-oracle

Astronomical catalog data and observing session planner. 13,000+ objects from OpenNGC.

accessibility-ai

Scan URLs for WCAG 2.1 violations, generate AI fixes, and produce VPAT 2.5 compliance reports.

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aai-gateway

Unified MCP & Skill management gateway, shared across AI agents, 99% context token savings

storeboard

Generate exact-size App Store and Google Play screenshots, feature graphics, and listing copy.

docs

Publish and share Markdown/HTML docs from AI assistants. Requires grtwo.app Pro. OAuth or API key.

a2a-mcp-cpg

A2A MCP & CPG Rails: HBPC (Hygiene + Beauty Personal Care) procurement and ESG.

norric-mcp

Swedish B2B intelligence: insolvency risk, BRF health & procurement signals from govt registries.

crypto-prices-mcp

Live and historical cryptocurrency prices via CoinGecko free API.

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gmail-postmaster-tools

Gmail Postmaster Tools v2 — domains, traffic metrics, and compliance via your own Google OAuth.

spot

Create gasless market, limit, TWAP, stop-loss, take-profit, and delayed-start swap orders.

discovery

Search independent software the big engines bury: indie apps, open-source repos, and dev tools.

indian-regulatory-mcp

SEBI orders, RBI notifications, MCA filings, NSE/BSE announcements, AMFI NAV.

wikipedia-recent-changes-mcp

Live Wikipedia edit feed, page summaries, trending pages, and Wikidata search.

kanban-ai

Remote MCP for Kanban AI boards—manage projects, tasks, and comments from AI tools.

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shouldigo-surf

MCP server for Should I Go? — real-time surf conditions for 73+ beaches worldwide

botspot-trading

AI trading bots: generate strategies, backtest, deploy live to 10+ brokers. No coding required.

oro-intel-mcp

UK public procurement data for AI agents: tenders, contracts, buyer and supplier profiles.

amazon-seller-operations

Amazon account health, listing, FBA inventory, fee, PPC, review, and appeal intelligence.

hn-trending-mcp

HN front-page, Algolia full-text search, and Show HN launch tracker.

uspto-patents-mcp

US patent search, assignee portfolios, and citation graph via PatentsView.

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bettermemory

Memory for coding agents, checked against the filesystem and git before it is believed.

ibkr

Local IBKR MCP server for agentic trading desks: market data, portfolio context, risk checks.

hail-mcp

Phone, SMS & email for AI agents — one remote MCP endpoint, OAuth login, zero install.

monarchmoney

Monarch Money API client with 30 MCP tools for accounts, transactions, budgets, and cashflow.

cert-atlas

Search 1,580 certification exam blueprints: domains, scoring, prerequisites, compare. No API key.

arduino-mcp-server

Arduino MCP server for CLI setup, board detection, compile/upload, serial monitoring, and pin refs.

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skill-shelf

Progressive group routing for 393 professional skills via Rust daemon stdio shim.

keycloak-mcp.test

This is just a test publish, delete me

coderegistry

Enterprise code intelligence for M&A, security audits, and tech debt. Hosted server with 200k free.

nanami-products

Pre-computed astrology YAML via Swiss Ephemeris. Calculation is code, interpretation is AI.

organic-web-checker

USDA NOP organic compliance checks — operation websites vs live OID certificate data.

eve-mentor-mcp

AI mentor for new & returning EVE Online players: losses, skills, fits, ISK, routes, and more.

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visuals-mcp

MCP server for interactive visualizations: tables, images, trees, lists, master-detail

helloaigent-subscriber

Subscribe your agent to Hello Aigent feeds: discover, fetch signed updates, verify, and act.

whalescope-mcp

Binance Futures market intelligence: funding, OI, order book, klines, cross-exchange comparison.

hackle-mcp

Remote MCP server for the Hackle Admin API: experiments, feature flags, remote config, messaging.

pseolint

Penalty-risk audit for programmatic SEO sites: verdict, risk score, and a fix manifest.

csjn-mcp

Search Argentine Supreme Court sumarios: legal topics, case analysis, metadata

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outris-identity-mcp

Identity resolution MCP server for phone/email lookups across 31+ services. Global + India coverage.

CloakMCP

Stealth browser MCP server — anti-detection Chromium with snapshot-first agent interface

northdata-mcp

NorthData API for German company, owner, and financial data — with a built-in credit guard.

robyn

Gasless cross-chain for AI agents: 25 nodes incl. Solana & native Bitcoin. One signature, no gas.

motaword-mcp

MotaWord MCP Server for professional and certified translations and localization

gitlab-docs

GitLab documentation search for AI assistants via Model Context Protocol (MCP)

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symbols

MCP server to read, inspect and troubleshoot codebase symbols

nira-file-intel

Smart file intelligence for Claude — search, deduplicate, organize, and analyze files

gograph

Local Go repository call graphs and structural analysis for coding agents over stdio.