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© 2026 AgentStackBuilt for people building better agents.

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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

ibkr

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

qai-consultant-mcp

Keyless local MCP server for QA: standards retrieval, effort estimation, doc review, test analysis.

siteguardian

EU-hosted website monitoring + 17-framework compliance MCP. One anonymous tool, four authenticated.

sec-edgar-mcp

Search SEC filings, read 10-K/8-K, query XBRL facts, track Form 4 insider trades.

ignav-flights

Live flight prices and working booking links for AI agents and travel apps.

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personal

Gabriel S. Gusmao: bio, publications (Scholar citations), scientific-ML playgrounds, profiles.

compliance-trestle-mcp

An MCP server that provides tools to author OSCAL security compliance documentation

remodeleriq

Check if a contractor's remodeling bid is fair: analyze a quote, get cost + labor estimates.

dwai-ide-bridge

AI Agent 与 JetBrains IDE 的桥接工具：获取光标代码上下文、诊断运行报错、执行脚本、推送 Diff 修改供开发者审批。

jfrog-dummy-mcp

JFrog dummy MCP server

hail-mcp

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

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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.

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.

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nanami-products

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

inktomd-mcp

Convert files, URLs, and documents to clean, AI-ready Markdown via MCP.

git-top

Evidence-backed open-source project search, recommendations, alternatives, and comparisons.

data-profiler-mcp

Profiles CSV/Parquet/Excel/JSON files: schema, stats, quality flags and dtype tips for LLM agents.

admin-mcp

Model Context Protocol (MCP) for Hellō Admin API.

web-search

Keyless multi-engine web search, fetch, and clean-Markdown read for AI agents. No API keys.

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letsclarify-mcp

Human-in-the-Loop API: AI agents create forms, share URLs with humans, get JSON back.

ask-helena

Official answers about Helena Bioinformatics and its products, with citations to public sources.

caelus-mcp

34-tool Caelus MCP for validated astrology: charts, transits, Vedic, facts, sky view, synthetic.

hermai-cli

Hermai MCP server — look up, submit, and classify website API schemas from any MCP client.

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

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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)

symbols

MCP server to read, inspect and troubleshoot codebase symbols

nira-file-intel

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

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gograph

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

calendar-mcp

List, search, and manage calendar events via macOS Calendar.app across all configured accounts.

nira-video-mcp

Video production MCP: 55 tools — edit, grade, TTS captions, beat-sync, master, AI generate.

pastml

Deploy HTML and Markdown as live URLs. Create, search, update, and manage pastes from any AI agent.

drinkedin

AI agent virtual bar ecosystem — visit venues, order drinks, chat, earn Vouchers. 10 tools.

unified-ai-system

Self-hosted MCP gateway for Codex, Cursor, and Cline with provider-free prompt enhancement.

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housecall-pro-mcp

Independent MCP server for the Housecall Pro API: jobs, estimates, invoices, price book, schedule.

n8n-pro-mcp

Manage self-hosted n8n (incl. queue mode): workflows, executions, users, audit — 51 tools.

folklore

Helena Bioinformatics MCP for clinical variant interpretation, ACMG/AMP evidence and literature.

mercury-repower

Live Mercury outboard data and CAD quote builder from a Mercury Platinum Dealer in Ontario.

helloaigent-publisher

Run a Hello Aigent feed from your agent: create feeds, publish signed updates, read analytics.

lousa

A whiteboard where AI agents draw their explanations as hand-drawn animated diagrams

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juscaba-mcp

Search Buenos Aires City courts: cases, proceedings, parties, and PDF downloads

tolk-mcp-server

MCP server for the Tolk smart contract compiler. Compile, validate, and explore TON contracts.

apple-reminders

Fast, native macOS Apple Reminders via EventKit. 10-200x faster than AppleScript alternatives.