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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

horus-flow-mcp

Institutional crypto & equity orderflow intelligence for AI trading agents.

myinstants-mcp

Give your AI agent a soundboard. Millions of meme sounds from myinstants.com.

congress-trades

Query normalized U.S. Congress STOCK Act trades with member, ticker, and performance data.

cognos-session-memory

CognOS trust scoring (C=p·(1-Ue-Ua)) and session trace storage as MCP tools.

injectshield

Prompt-injection firewall for AI agents — scan untrusted text before LLM calls.

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showagent

Search, resume and convert AI coding sessions (Claude Code, Codex, Gemini, OpenCode, Pi) over MCP.

turk-hukuku-ictihat-mcp

Türk yargı kararlarını (Yargıtay, Danıştay, AYM) resmî kaynaklardan yapay zekâya açan MCP sunucusu.

bailinghub-governance

Submit and inspect governed AI business actions through a self-hosted BailingHub control plane.

agent-skill-loader

Dynamically load Claude Code skills into AI agents without copying files.

pushengage-mcp

Send push notifications, build audiences, and view campaign analytics from PushEngage.

aloha-fyi-mcp

Hawaii MCP: tours, events, weather, restaurants, and day-plan itineraries across 4 islands.

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agenttrust

Trust scores & reputation for the agent-to-agent economy. Verify A2A counterparties.

crosstabs-mcp

Statistical crosstab analysis: chi-square, Fisher's exact, odds ratio, effect sizes

groundcheck

Verify claims, resolve FIGI identity, extract claims, and sign x402 delivery receipts over MCP.

agentdocs-mcp

MCP server for AgentDocs (agentdocs.eu): read, search, write, comment on & share Markdown docs.

datanika-mcp

Read-only-by-default MCP for Datanika: browse data, run dbt transforms, manage ELT pipelines.

mcp-server-for-oscal

AI agent tools for Open Security Controls Assessment Language (OSCAL)

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piu-copy-mcp

GrowthHackers copywriting prompts (Meta/Google Ads, email, VSL) as MCP tools — search & generate.

domaindrift

Signed internet telemetry, read-only: DNS, TLS, WHOIS, reachability. Every record Ed25519-signed.

bulkpublish

Publish, schedule, and manage social media across 11 platforms via MCP.

agentvault

Credential vault for AI agents — Fernet-encrypted keys, per-agent budgets, audit logs.

hostinger-api-mcp

MCP server for Hostinger API

modelwatch

Continuous behavioral drift monitoring for LLM apps — catches silent provider model updates.

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openclaw-agent-tools

Weather, code search, currency & Solana trust scoring as MCP tools. Free, no API key needed.

seiche

US funding-stress warning with construction-PIT evidence limits and explicit eligibility flags.

famulor-mcp

AI voice agents: assistants, calls, campaigns, leads, knowledge bases, WhatsApp, SMS & SIP trunks.

filechanger

Convert documents between text formats (markdown, html, and more) via the FileChanger API.

mcp-server

Deploy static sites on Hostsmith - give it a file, get a live HTTPS URL. EU/US residency.

babelwrap-mcp

MCP server for BabelWrap — give AI agents web browsing superpowers.

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basic-memory

Local-first knowledge management with bi-directional LLM sync via Markdown files.

amazon-creators

Amazon product search returning paste-ready affiliate deal rows for your blog

data-breach-detector

Read-only breach intel, full history 2007-today: reports THAT an org was breached, never the data.

faultline

Check infrastructure health, manage incidents, and run runbooks in Faultline.

bamwor-mcp-server

World geographic data for AI agents: 261 countries, 5.2M cities, rankings, and 9 indexes.

mcp-grantiq

Search US grants + federal contracts (Grants.gov + SAM.gov) from any LLM.

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oraclarr

Read-only diagnostic MCP server for a self-hosted arr stack (Sonarr, Radarr, Prowlarr & more).

modulor

Agent-native CAD: draw plans, model 3D, render checks, export DXF/SVG/STL/GLB/IFC, import DXF.

gemini

Model Context Protocol server for Google Gemini AI with chat, research, and grounding

geo-analyzer

Scores content on the signals that get it cited by ChatGPT, Perplexity and AI Overviews

mcp-server

File structured docs-feedback reports to the FixYourDocs hub via a file_doc_feedback tool.

crosstabs

Local survey workflow and statistical crosstab analysis with auditable evidence

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hugging-bay

Verified open AI artifact search, trust evidence, downloads, and agent workflows from Hugging Bay.

chronoverify

Verify a photo's capture time and provenance: C2PA validation, EXIF/XMP, and pixel forensics.

codemap-mcp

Roslyn-powered MCP server for C#/VB.NET. Query symbols, call graphs, and facts. 90%+ token savings.

beckett-godot-mcp

MCP server embedded in the Godot 4 editor; drive Godot with AI, zero sidecar.

noisefloor

Is this number real, or is it noise? Peek-safe A/B tests, change detection, honest forecasts.

umbra-proof

Verify Umbra bridge accountability proofs (signed receipts, checkpoints, Merkle inclusion).

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google-knowledge-graph

Search Google's Knowledge Graph for structured information about real-world entities

formio-mcp

Create and manage Form.io forms, resources, actions, roles, and projects from your AI agent.

thask

Dependency-graph MCP server. Tells Claude/Cursor what breaks if you change X. Provenance guards.