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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

kg-mcp

Local knowledge graph memory MCP server for AI assistants.

spacesentinel-mcp

Conversational Windows disk cleanup (whitelist-only) + device cleanup guides in 7 languages.

shaft-mcp

Web automation and testing server using SHAFT Engine (Selenium-based)

devtime

Local-first, read-only MCP server for evidence-backed repository memory.

browser-mcp

Hosted real Google Chrome MCP with per-user persistent state. Navigate, click, type, screenshot.

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docs-mcp

Vector RAG store for Word/Excel/PDF/PowerPoint. Break-even pricing, $5 per 5,700 pages.

mindswap

Local-first AI context and memory server for cross-tool coding continuity.

openstates-mcp-server

Search bills, legislators, committees, and events across all 50 US states, DC, and 5 US territories.

getprompts

Search 1,000+ battle-tested AI prompts from getprompts.org into Claude Code, Cursor, ChatGPT.

silicon-transfer-mcp-server

FTP/SFTP/FTPS MCP server with transfer proofs - every upload returns a checksum verdict.

is-real-biz

Verify business legitimacy by domain or name in <2s. Trust score, verdict, evidence. x402-payable.

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thinchain

MCP server that sanitizes bad broker data and compresses options chains 95% for AI trading agents.

elsa-agent-gateway

ELSA — Coach IA de ciclismo y comunidad en LATAM: planifica tu bloque y encuentra tu club.

agentburn

Local profiler for AI agents: burn by source, overnight bill, behavioral forensics, config fixes

tollbooth-x402

Discover, quote, verify & self-check 56 x402 pay-per-call finance/tax calculators for AI agents.

pmcp

High-quality Rust SDK for Model Context Protocol (MCP) with full TypeScript SDK compatibility

openfda-mcp-server

Query FDA data on drugs, food, devices, and recalls via openFDA. STDIO or Streamable HTTP.

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public-knowledge

Public EPK real estate listings and multilingual guides for Panama and the Dominican Republic.

senado-br-mcp

MCP Server for Brazilian Federal Senate open data (legislators, bills, votes)

beachmap

Europe's 478 best beaches: sea temperature, sand, best months, swimming, surf. Free, CC BY 4.0.

bcb-br-mcp

Brazilian Central Bank / Banco Central do Brasil (BCB) - SGS time series MCP: Selic, IPCA, FX, GDP

openalex-mcp-server

Access the OpenAlex academic research catalog — 270M+ publications.

agent-immune

AI agent security: prompt injection detection, semantic memory, output scanning, prompt hardening

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ruchy-mcp

MCP server for Ruchy: code analysis, scoring, linting, formatting, and transpilation tools

mcp

Agent-facing PDF API: merge, split, rotate, compress, images, metadata, text, and Markdown.

freightutils

Neutral freight reference layer for AI agents: ADR, HS, airlines, UN/LOCODE, ULDs, freight math

banco-de-ideas-mcp

Read, publish and explore creative bisociations between concepts on unbancodeideas.com.

snipara

Hosted MCP for source-backed project context, memory, code impact, and agent workflow continuity.

freshdeps-mcp

Live npm/PyPI dependency-health verdicts so AI agents stop recommending stale or CVE'd packages

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smeltr-token2022

Validate Token-2022 configs (transfer fee, soulbound, delegate). Read-only — no keys or RPC.

xcode-mcpbridge-wrapper

Python wrapper that makes Xcode's MCP bridge compatible with strict MCP clients like Cursor

dyer-md

Access your dyer.md Markdown vault as a knowledge source for AI agents.

skillproof

Check whether a Claude Code skill was tested and whether it works before installing it.

rekindle

MCP session continuity engine. Boot reports, orientation scoring, and end-session capture. SQLite.

skyvern

AI-powered browser automation — navigate, click, fill forms, and extract data from any website.

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firehose

SEC EDGAR filings parsed: 8-K body-text classification, 13D activist tagging, S-3 ATM detection.

korean-public-data-mcp

Korean government open data - weather, population, law search via data.go.kr

top-gun-geo-lens

Brand visibility auditing across LLMs, AI search, and answer engines with GEO reports and scores.

hawaii-conditions

Real-time surf, weather, trail status, volcano, ocean safety, and restaurants for Hawaii.

safehold

Local, encrypted MCP vault for passports, IDs, visas and photos. You control access.

nogra-mcp

Verify-before-done trust layer for AI-assisted work. 32 tools, local-first, no credentials.

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pixoo-mcp-server

Render and push styled pixel art, text, dashboards, and animations to Divoom Pixoo LED displays.

freelance-os

Freelance business manager — clients, proposals, invoices, time tracking, scope, and follow-ups.

openunfurl

Zero-signup anonymous link-unfurl API. One GET returns clean JSON metadata for any public URL.

korean-agriculture-mcp

Korean wholesale agriculture market data - auction prices, seasonal produce, market trends

mcp-server

stories.yaml — an open specification for software requirements, enforced by CI.

mcp

Citable retrieval across papers, books, patents, Wikipedia, and live social sources.

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library-mcp

Search and discover 25,000+ MCP servers across all major registries. Connect and pay autonomously.

domain-finder

Check if a brand name is free across domains, GitHub, npm and PyPI, and suggest available names.

nexus-alpha-geometry

Finance research agent for thesis, trade note, and market-state review.