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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

flightseatmap

Look up airline seat maps, find the best seats, and manage seat alerts from your AI assistant.

specrun

MCP server that converts OpenAPI specs into tools which can query API endpoints

post-bridge

Schedule and publish social media posts to 9 platforms from your AI agent

genflik

Create AI talking-avatar marketing videos from a script or product idea.

pullpush-mcp

Search Reddit comments and submissions via PullPush.io with filtering by subreddit, author, and date

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ukdatapi

UK government data intelligence with proprietary scoring from 400+ sources

sic-codes

UK SIC code lookup, GICS/ICB mapping, and Companies House search. 731 codes, 5.6M companies.

scan-mcp

MCP server for scanner discovery and batch capture via SANE

usefillo

Fillo MCP server — provision, scaffold, publish, and query forms from your coding agent.

index-server

MCP instruction indexing server with search, CRUD, validation, and cross-repo knowledge promotion.

discord-mcp

MCP server for the Discord REST API: 5 read tools always on, 7 write tools env-gated, default off.

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desktop-mcp

Windows desktop-control MCP server: screenshot, window mgmt, mouse/keyboard input, recording.

rag-mcp

Minimal RAG-over-a-corpus MCP retrieval: search_knowledge returns cited chunks. Local embeddings.

mcp-factory

Manifest-driven MCP server scaffolder and runtime hub for tool integrations.

rails-mcp

Default-deny action registry, append-only spend ledger, and human sign-off audit trail (MCP tools).

tmcp

Composable skill packets, harvests, workflow routing, and release/audit rubrics over MCP.

cukaimax-tax-authority

Source-linked Malaysian individual and sole-proprietor tax guidance for AI agents.

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font-proof-mcp

Create and modify Font Proof documents programmatically (PDF font proofs, live from Glyphs.app).

peelaway

Edit images over MCP with object removal, background removal, and guided generative edits.

forage-shopping

AI shopping comparison — search 50M+ products, compare prices, find deals

vidgrid

Give an AI agent eyes for video: turn a clip into a numbered frame grid + transcript.

mcp-drawthings

MCP server for Draw Things - local AI image generation on Mac

inventpay-mcp

Manage crypto payments, stores, digital products, and orders via InventPay

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monkeymcp

MCP server providing monkey data, journeys, and location services for various monkey species.

rejstrik-mcp

Czech company registry MCP that reads filed PDF financial statements — keyless, agent-native.

engram-server

Durable memory for AI agents: fact extraction, hybrid retrieval, temporal graph. SQLite/Postgres.

push-realm

Cross-domain knowledge network where AI agents search, share, and refine solutions via MCP.

journald-mcp-server

Incident forensic with log files analyzing

valoria-intelligence

Find where the money is in AI services. See what's earning and find market gaps.

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inkdraft

Turn sales-call transcripts into traced proposals, contracts, and NDAs.

mcp-digger

Progressive on-demand access to .NET NuGet package source for AI coding agents.

md-vision

Read markdown with inlined images and index headings for agentic RAG workflows.

weather-mcp-server

Fast - accurate weather conditions and forecasts by city or coordinates.

cronalert

Manage CronAlert uptime monitors, check results, and incidents from any MCP client.

badge

Agents are not bots. Prove it. MCP-native identity declaration for authorized agents.

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thesischeck

Verify stock theses against public filings with a source-backed evidence ledger.

handbook

MCP server for the Handbook API – manage handbook entries via CRUD, overview and tag search.

cambium-remote

Cloudflare Worker for read-only recall of cambium knowledge. MCP 2026-07-28, dual-era.

daemoon

One PAT, any MCP agent: Vercel, GitHub, Cloudflare, Supabase, GCP — unified dev infra gateway.

dealsync-mcp-server

Shared deal room where Loan Officers and Realtors track leads from conversation to closing.

context-keeper-remote

Cloudflare Worker remote backend for context-keeper (D1). MCP 2026-07-28, dual-era.

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apple-mail-mcp

LLM access to Apple Mail and iCloud via AppleScript. Read, search, compose, reply, flag and delete.

skillmatch-mcp

Job search and ranking pipeline via MCP for Claude Desktop.

mortgage-hawaii

Hawaii mortgage & VA loan expertise for Honolulu. 2026 loan limits, condo rules, FAQ.

paypal-mcp-server

A command line tool for setting up PayPal MCP server

agentsync-remote

Cloudflare Worker remote transport for agentsync. MCP 2026-07-28, dual-era, stateless.

homebase

School district lookup, PA EIT tax rates, and mortgage affordability calculator

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clawshow-mcp-server

Instant Backend for SMBs: pages, payments, eSign AES eIDAS, notifications, inventory, reports

fintable-mcp

Unofficial MCP server for fintable.io — manage financial categories, rules, and transactions.

cairn-mcp

Persistent memory for AI agents and humans. Store, search, and discover patterns.