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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

pscale-biome

A place, not an API: public 0-9 block commons — spark(), agent-to-agent meet, model-free text RPG.

propline-mcp

Live sports betting odds, cross-book +EV, and graded player-prop resolution across 16 books.

unbrowser

Chrome-free MCP web access for agents with low-token page maps and browser escalation hints.

dbmigratepro-continuous-migration

Keep a target database continuously in sync with a source on another provider, then promote it.

ethora-mcp-server

MCP server for the Ethora chat & messaging platform: chat ops, AI agents, RAG, automation.

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claudebox

Self-hosted MCP server exposing Claude Code as an agentic AI tool over streamable HTTP.

proventools

Read-only ProvenTools business ideas, evidence, build prompts, and validation reports.

elesync

Local-first MCP memory vault: files you own, shared across ChatGPT, Claude, Gemini & any MCP client

entra-news-podcast

Search Entra.Chat podcast transcripts — Merill Fernando's Microsoft Entra podcast on YouTube

flickies

Self-hosted MCP server: video lipsync, face restore, and ffmpeg ops (trim, concat, transcode).

hybrids3

Self-hosted S3-compatible object storage server with an MCP interface for AI agents.

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ms-sharepoint-mcp

Microsoft SharePoint MCP server — access sites, lists, and documents through Microsoft Graph.

rankrat

Read Search Console, Bing Webmaster, GA4 and PageSpeed data through one self-hosted MCP server.

usaspending-gov-mcp

USASpending.gov federal contracts, subawards, recipients, agencies. 55 tools.

build123d-mcp

AI-driven 3D CAD via build123d: execute, render, measure, and export geometry interactively.

webclaw

Turn any URL into clean markdown/JSON for AI agents. Self-hostable web content extraction.

predictalot

Self-hosted MCP server for time-series forecasting and tabular ML via foundation models.

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egnyte-mcp-server

Official Egnyte MCP Server for AI integration with document search, analysis, and collaboration.

coremodels

Schema modeling in JSON, JSON-LD, and other formats with CoreModels platform.

smart-terminal

MCP PTY server providing AI agents with real interactive terminal access

qiniso

Deterministic fact verification for AI agents — checksums & curated data, not guesses.

companieswise

Verified UK company lookup & validation for AI agents — Companies House data, snapshot or live.

mcp-korea-worklife

Korean calculators: salary take-home, severance, jeonse-rent, annual leave, VAT, pyeong.

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ideogram-mcp

Ideogram V3 API — generate, edit, remix, reframe, replace background, upscale images

hamqth-mcp

HamQTH.com MCP server. Free callsign lookup, DX spots, RBN data, SAVP verification.

sota-mcp

Summits on the Air MCP server. Summit lookup, activator stats, chaser records, spots.

quadratik

Search and manage 220M+ B2B contacts. Filter by title, industry, location, and more.

freeport-nostr

Search Freeport Nostr events by kind, tag & geohash radius (rides, services, reputation).

mcp-server

PubNub Model Context Protocol MCP Server for Cursor and Claude

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pudge-ui

Query pudge-ui — 93 skeuomorphic 2000s-era UI component specs — for coding-agent context.

mcp-ai-visibility-index

AI visibility rankings for 104 Japanese EC companies across ChatGPT, Claude, Gemini, Perplexity.

google-trends-mcp

Google Trends MCP server: interest over time, comparisons, related queries, trending searches

stealthy-auto-browse

Self-hosted MCP server for stealth browser automation with human-like OS-level input.

purmemo

AI memory across Claude, ChatGPT, Gemini, and Cursor. Save, search, and recall context everywhere.

mcp

Real-time and historical price feeds for 500+ crypto, equities, FX, and commodities assets.

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wickworks

Self-hosted MCP server: technical indicators + smart-money-concepts from OHLC bars.

sanctionwise

Verified UK sanctions screening for AI agents — official FCDO UK Sanctions List, not guesses.

wemo

Control WeMo smart home devices - discover, toggle, adjust brightness, and manage HomeKit codes

qrz-mcp

QRZ.com MCP server. Callsign lookup, DXCC resolution, logbook queries via QRZ XML API.

netlens

Read any web page as clean, ad-stripped Markdown past robots.txt and bot blocks, plus web search.

floodwise

England flood-risk by postcode for AI agents — verified Environment Agency data, not guesses.

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synter-ads

Manage ad campaigns across Google, Meta, LinkedIn, Reddit, TikTok, and more via AI.

teams-api

AI-native Microsoft Teams integration — read chats, send messages, search people

telethon-plus

Self-hosted MCP server: Telegram userbot control (Telethon) via HTTP and MCP.

vectora

AI assistant with RAG, web search, filesystem and memory. MCP sub-agent for Claude Code.

mcp

Access Bugfender logs, crashes, devices, and user feedback from MCP-enabled clients.

systemdox

Your architecture in your agents' context: checks, specs, ADRs and docs over MCP, at write time.

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utility-converter

7 utility tools in here: exchange rate, UUID, hash, Base64, timestamp, calculator, unit conversion.

vallt

API credential manager for Claude Code. Connect services, store keys in keychain, monitor health.

untappd

MCP server exposing Untappd API tools for AI agents — full v4 read API coverage