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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.

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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.

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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.

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Sales & Outreach16 SEO & Marketing49

Business Operations492

Analytics314 Business Ops178

Build & Ship595

Creative Studio80

Design & Presentations80

Workflows268

#ToolPopularity

mcp-server

Model Context Protocol (MCP) server for AI-assisted development of CAP applications.

namecheap

MCP server for Namecheap — check availability, list domains, and get pricing

logbook-mcp

Developer logbook MCP server. Notes, TODOs, standups, decisions, debug sessions, reminders.

google-image

MCP server for Google Gemini image generation and editing

codehabits-mcp

Team conventions, anti-patterns, and domain knowledge from .codehabits/ for AI coding agents.

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ai-context-inspector

Scan, export, and import your AI ecosystem. Discover MCP servers, skills, and memories.

procm-mcp

A Model Context Protocol (MCP) server for process management.

mcp-rfc-editor

An MCP server that provides rfc editing capabilities

wellness-air

Local-first air-quality MCP for AI agents — AirGradient, AirThings, PurpleAir, IQAir, Awair.

dazzle

Cloud stages for AI agents and live streaming. Create, manage, and broadcast content.

hashloom

Content-addressed contracts and a verification cache that cut agent context by skipping proven code.

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stellify-mcp

Build Laravel apps through conversation. Code stored as structured JSON for surgical AI edits.

hokmah

AI Agent with Architectural Memory. Impact analysis (free), tests and code from the graph (pro).

purl

Search and save to your Purl read-it-later knowledge base from any MCP client.

redshift-mcp-server

Secure, read-only access to Amazon Redshift with schema introspection and smart sampling

sats4ai

40+ Lightning-paid AI tools for agents: calls, SMS, fax, voice, translation. No signup, no keys.

devflow-mcp

MCP server connecting Jira (Cloud + Server) with GitHub/GitLab. Branches, issues, PRs, flows.

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juicy-designs-quote

Free digital marketing quote and strategy requests from Juicy Designs SA. No price returned.

google-analytics

MCP server for Google Analytics 4 — reports, realtime data, and admin

mysql

MCP server for MySQL/MariaDB — pooled async queries with destructive-query safety

api-governance

API governance for AI agents. Detects breaking changes, scores blast radius, blocks unsafe calls.

delx-protocol

Free agent continuity MCP: resume after compaction, warm handoff, recover from failure. No key.

google-ads-mcp

Unofficial Google Ads MCP for campaigns, keywords, budgets, and gated mutations.

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wellness-cycle-coach

Local-first cycle coach MCP for phase-aware nutrition and training context.

agent-browser

MCP server for browser automation via Vercel's agent-browser CLI

percept

Give your AI agent ears — ambient voice intelligence with 8 MCP tools for Claude Desktop

gpt-chat

MCP server for the OpenAI ChatGPT API — chat, vision, and embeddings

mcp-scorecard

Agent-readiness scorecard for any MCP server: 10 checks, 0-100 score, actionable findings.

gpt-image

MCP server for OpenAI GPT image generation and editing

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pexels

MCP server for Pexels — search photos and videos, and browse collections

tieline

Static FE-BE contract-drift checker: finds frontend calls the backend does not expose. CLI + MCP.

ask-ollama

Bridge Claude with local Ollama LLMs for private AI-to-AI collaboration — no API keys, fully local

katzilla

300+ free public & government data sources behind one API key, for AI agents.

codegraph

Semantic code graph with 31 tools: callers, impact, complexity, unused code. 15 languages.

grok-chat

MCP server for the xAI Grok API — chat, vision, search, and embeddings

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semi-data

US-government semiconductor & quantum supply-chain intelligence: controls, entities, funding.

uap-pulse

Search and map the Pentagon UAP/UFO releases plus curated official archives from 12 nations.

wellness-nourish

Local-first nutrition MCP for AI agents: food, barcode, photo, intake, hydration, goals.

univercity-mcp

8-dimension business diagnosis with Revenue Leak Score and triple-option recommendations

mcp-eval-runner

A standardized testing harness for MCP servers and agent workflows

capsule

Compact, source-linked context packs that reduce token waste for coding agents.

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vedavisor-vedic-astrology-mcp

Professional Vedic astrology tools for AI agents via MCP.

mcp-second-brain

Self-maintaining knowledge vault: figure-level search, auto-wikilinks, and memory compression.

prismix-status-mcp

Real-time status for 75+ AI services (OpenAI, Anthropic, Cursor). No auth, CORS-enabled.

graylog-mcp

Query logs from Graylog: get streams, search messages, aggregate, and get full data.

convradar-mcp

GA4 conversion analyst inside Claude — funnel drops, traffic anomalies, device gaps, with numbers.

planexe

MCP server for generating rough-draft project plans from natural-language prompts.

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mcp-server-graylog

Search Graylog logs by timestamps, filter by streams, and debug production issues.

freshcontext

Freshness-aware AI retrieval with 21 MCP tools for timestamped, decay-ranked live signals.

bluesky-followers-export

Export full Bluesky follower/following lists with profile stats. Audience and lead research.