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© 2026 AgentStackBuilt for people building better agents.

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Helpful context

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

reviews

Multi-model Critique and Iterate document reviews with public verification receipts.

sublong

Sublong is a command-line tool for aligning long FASTQ reads to a reference genome, primarily used in bioinformatics for genomic and RNA-seq analyses.

nashboard-merchants

Merchant intelligence for AI agents: brand/operator/location hierarchy + industry codes.

kindex

Persistent knowledge graph for AI workflows with context tiers and .kin inheritance.

office-hours

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@planu/core-linux-x64-gnu

Planu — MCP Server for Spec Driven Development with native Rust acceleration for hot paths. Cross-platform (Linux/macOS/Windows, x64/arm64, glibc/musl).

enacta

Long-term memory for AI agents: durable records, observable retrieval, governed context assembly.

mcp

AI ad creative generation: brands, Brand DNA, asset uploads, image and video generation.

fidenta-verify

Independent fact-checking for AI answers: a verdict and sources for every claim.

mcp-server

Source-provenanced US federal healthcare provider data over MCP, with 14-tuple provenance.

grill-with-docs

An AI tool that facilitates rigorous interview-style sessions to refine plans or designs while generating architectural decision records and glossaries.

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sportsdata-mcp

Live sports data and cross-book betting odds — 778 tools, 62 providers, 43 needing no key.

mcp

Connect AI agents to GlassFrog: roles, skills, notes, tensions, and governance.

gtd-brain

Capture, organize, and work your GTD board: inbox capture, next actions, projects, waiting-for.

globalsurfari

7 day surf forecasts (wave, wind, period) for any coordinate or named surf spot.

prism

People-enrich: work email + phone, company & domain enrichment. Pay-per-call USDC, no key.

mcp

Interact with your Google Bigtable resources using natural language commands.

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mcp

Interact with your Google Cloud Firestore resources using natural language commands.

trade-server

Manage HaasOnline crypto trading bots, labs, backtests and HaasScript across 20+ exchanges.

mcp

Send free or paid faxes to US/Canada from Claude, ChatGPT, and other AI agents.

mcp

Vyhledávání a detail českých firem, finanční výkazy a ukazatele z veřejných rejstříků.

tax-engine

Deterministic Czech OSVC tax tools for 2026: tax, insurance, deadlines, VAT and exchange rates.

server

Potisk triček a textilu na míru (ČR) — katalog, ceny, příprava designu a objednávky.

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geo-scanner

Checks whether a website is readable and citable by AI systems (ChatGPT, Claude, Perplexity, etc.)

suche

Search Blu-ray and 4K UHD movies, featured titles, and detailed movie information.

semantic-search

Semantic search for Historical Soundscapes. Search eventos, entities, filters. Cross-lingual ES/EN.

aisha

Verified local businesses, bookable by AI agents: services, prices, availability and appointments.

analytics-operations

AI access to Hitsteps analytics, live visitors, uptime, goals, alerts, and chats.

civic-record

The public record of local government: what your officials actually say and do, word for word.

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mcp-server

Browse property verification missions. Connect with Scouts for GPS-verified tours.

hyperping

Uptime, API and server monitoring with outages, reporting, on-call and status pages.

i3deploy

Deploy & release tracking with native MCP — ask Claude what's in production and cut the release.

interactive-brokers-ibkr

Analyze global markets and manage your portfolio

send-decision

Send-decision email verification: agents get send/review/avoid with evidence, pay-per-call via x402.

incisory

Audit whether ChatGPT, Gemini & Perplexity recommend a business — verbatim proof, then fix it.

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loan-marketplace

AI-powered loan marketplace. Match users with 100+ lenders — any credit score or employment status.

mcp

Infobip MCP server for omnichannel communication and messaging. SMS, RCS, WhatsApp, Viber and more.

server

Investment sentiment, predictions, and analyst track records for stocks and crypto

payments

Remote MCP for ifthenpay payments: Multibanco, MB WAY and Payshop.

fisco-it

Italian tax + NIS2 scope: Codice Fiscale, P.IVA, IBAN, ATECO, IMU, F24, FatturaPA. Free, no LLM.

mcp-public

B2B competitive-intelligence reports and head-to-head competitor comparisons from IndustryLens.

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world-model

Event-sourced world model for multi-LLM agents: propose, validate, and read a shared state.

mcp

Instagram/TikTok/Facebook audience analysis: public post timelines, engagement, follower counts.

currency-rates

Latest and historical ECB foreign-exchange reference rates for 30+ currencies, via Frankfurter.

vedic-astrology

Vedic astrology (Jyotish): birth charts, divisional charts, dashas, yogas, transits, panchang

ecoplaza-mcp

Read-only MCP for EcoPlaza, Peruvian commercial real estate: projects, units, advisor contact.

exact-online

Exact AI Connect: hosted MCP server for Exact Online.

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mcp

joinBudget MCP: Manage personal finances, budget spaces, transactions, and categories.

mcp

Jotform MCP

kaalshodh

Observatory-grade Indian astronomy, years -5000..+5000: positions, eclipses, panchang date search.