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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

shebe

Fast BM25 full-text search for code repositories. 14 MCP tools, 2ms search latency.

arc-1

MCP server for SAP ABAP systems

applitools

The Applitools MCP server helps you create, update, and analyze visual tests using Applitools Eyes.

brreg

MCP server for Norway's Brønnøysund business registry — lookup, search, roles.

mcp-apple-notes

MCP server for Apple Notes integration using AppleScript with full CRUD operations

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racket-reviews

Read-only padel.how racket catalogue: reviews, comparisons, brands, and methodology.

ai-visibility-monitoring

AI-visibility monitoring for your brand across ChatGPT, Claude, Perplexity & Gemini.

migratorxpress-mcp

MCP server for MigratorXpress — cross-platform database migration with parallel transfer

archetypal-ai

Persistent memory for AI agents. recall, remember, checkpoint — soul preservation.

mcp-audit

Free context-engineering audits for AI agents. BYOK Anthropic key. Top-3 findings per scan.

shrimp

Task manager for AI agents. Zero setup, nested trees, batch ops, local-first storage.

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protein-mcp-server

MCP Server for 3D protein structural data retrieval & analysis from RCSB PDB, PDBe, and UniProt.

limelink-mcp-server

MCP server for Limelink dynamic links with deep linking, social previews, and UTM tracking

lakexpress-mcp

MCP server for LakeXpress — automated database-to-cloud data pipeline as Parquet

qpost-mcp

MCP server for QPost — lets AI agents publish video and image posts to YouTube, TikTok, Instagram.

edgar-mcp

MCP stdio server for source-backed SEC EDGAR financial data from the hosted EdgarParser API.

mcp

Discourse MCP CLI server (stdio) exposing Discourse tools via MCP

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mograph-mcp

Drive Adobe Illustrator and After Effects, and move artwork between them as editable shape layers.

marrow

Evidence-grounded, graph-connected, correctable memory for agents.

tokrepo-mcp-server

TokRepo MCP: tokrepo_discover for planning, tokrepo_install_plan before writes, tokrepo_push.

app-store-analytics

Research iOS and Android apps, use keyword marketing tools, see app installs, revenue and sdks.

deterministic

Deterministic IR/IR-LINT validation, policy packs, drift vs exports (archrad). Apache-2.0.

voyager-repo

An AI agent's safe read-only scout to orient in an unknown repository before touching it.

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evidra

Turns the training evidence you already have into a decision about today's session.

cerebras-code-mcp

Model Context Protocol (MCP) server for Cerebras to make coding faster in AI-first IDEs

pokeapi-mcp-server

Look up Pokémon, moves, abilities, items, natures, and type matchups from PokéAPI v2.

bee-public

Bee by HEOSSI: governed multimodal intelligence - chat, code, security, research, documents, memory.

gatesolve-mcp

Solve CAPTCHAs (Turnstile, reCAPTCHA, hCaptcha) via MCP. Free tier: 100 solves.

solana-preflight

Solana transaction diagnosis, simulation, token-risk evidence, and priority fees via x402 USDC.

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x402-alpha

Pay-per-call crypto intelligence: 19 tools over 10+ live sources, USDC via x402.

mathgraphs-mcp

Math & statistics graphing, computation, visualization, and validation engine

google-workspace-mcp

Google Workspace Admin via MCP. Manage users, groups, aliases, org units.

actionlayer

Concierge for AI agents: takes action in the physical world — book, order, register, resolve.

pyslang-mcp

Compiler-backed read-only Verilog and SystemVerilog project analysis.

0pi

Free, 2hr expiry agent storage to cache contexts, bridge workflows, or dump data.

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hermoso

AI ad studio: ad research, image + video ads, publishing, campaigns. Each usable alone. 415 tools.

mockups-gallery

Self-hosted gallery for AI-generated mockups. MCP interface; token-efficient curl uploads.

humanizer-pro

Humanize AI text to bypass GPTZero, Turnitin, Originality.ai. Stealth, Academic, SEO modes.

codehelper

Local-first code intelligence MCP: symbol graph, impact analysis, 60+ tools.

juba-mcp

Search Buenos Aires Province court rulings: summaries, full text, legal topics

mcp-victorialogs

MCP Server for VictoriaLogs. Provides integration with VictoriaLogs API and documentation

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eleion-scanner-mcp

Register/verify your domains, queue security scans, and read findings (CVE, severity).

mcp-victoriatraces

MCP Server for VictoriaTraces. Provides integration with VictoriaTraces API and documentation

stil-ets-mcp

STIL lab at ETS Montreal — knowledge base and paper search via ArXiv and Semantic Scholar.

mpv-mcp-server

Control mpv media player — playback, playlists, YouTube streaming, and downloads.

saij-mcp

Search Argentine legal databases: court decisions, legislation, summaries, doctrine

aribot

Threat modeling, code/cloud/pipeline scanning, shadow-AI discovery, compliance checks and fixes.

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costwright-mcp

Static worst-case token-budget analysis for LLM-agent workflows + signed budget certificates.

propstack-mcp

Connect AI assistants to your Propstack real estate CRM (contacts, properties, deals).

eleata-verify-mcp

Grounding/hallucination guard: verify a claim against evidence (Supported/Refuted/NEE).