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The definitive directory for the AI agent ecosystem

Search across 50+ directories. Security-scored. Cross-referenced.

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@sschepis/alephnet-node

lonestar108

AlephNet Node - Semantic computing, social network, and Coherence verification for AI agents

SkillAI Tool
323K3 dirs

n8n

6a01de90-15be-4d9a-9148-debef44f9576

No description available

MCP Serverai
194K3 dirs

@n8n/ai-utilities

GitHub Actions

Utilities for building AI nodes in n8n

MCP ServerAI Tool
180K35K/wk4 dirs

Awesome ChatGPT Prompts

A collection of prompt examples to be used with the ChatGPT model.

AgentPrompt Engineering
153K3 dirs

dify

7ac6f18e-2dcd-45db-bfcb-0b3424584848

No description available

MCP ServerServices
133K3 dirs

langchain

Erick Friis <[email protected]>

Building applications with LLMs through composability

AgentDeveloper tools
130K2.5M/wk5 dirs

markitdown

Adam Fourney <[email protected]>

Utility tool for converting various files to Markdown

MCP ServerEverything to Markdown to LLMs
91K3 dirs

@playwright/test

GitHub Actions

A high-level API to automate web browsers

MCP ServerAI Tool
85K3 dirs

Recent Additions

gosce-postgres-minio-stack-generator

Rawson Consulting B.V.

Generate a production-ready docker-compose.yml for a multi-service infrastructure stack — messaging (Kafka/ZooKeeper, RabbitMQ, NATS), object storage (MinIO), search (Elasticsearch/OpenSearch), databa

...more
MCP Servermcp
1 dir

@fidacy/mcp

lucasdelima

Fidacy action firewall for AI agents. Mandate-gated payment authorization as an MCP server.

MCP Servermcp
1 dir

aoa-demo

@Bystrov.Maxim

Example FastAPI and MCP services demonstrating ActionMachine.

MCP Servermcp
1 dir

imagedimensions-mcp

bishop81

MCP server that audits the images on any web page — natural vs rendered dimensions, oversized-image detection, and format breakdown. Powered by imagedimensions.com.

...more
MCP Servermcp
1 dir

@llm0ai/contracts

mushfiq.r

Shared Zod schemas, header constants, and utility types for the LLM0 gateway, cloud backend, and dashboard

Skillai-ml
1 dir

io.github.zenitheditor/zenith

Author, validate, edit, and render deterministic .zen design docs to PNG/PDF.

MCP Serveruncategorised
1 dir

io.gamefork/mcp

Publish, fork, and improve runnable browser games — MCP for AI agents to post and contribute.

MCP Serveruncategorised
1 dir

ai.upriver/upriver

Know what's gaining traction online: breakout topics in tech, sports & politics, with citations.

MCP Serveruncategorised
1 dir

How It Works

Skillful.sh aggregates data from every major directory and registry in the AI agent ecosystem into one searchable directory.

Step 1

Aggregate

We crawl and sync data from 50+ directories, registries, and package managers across the AI agent ecosystem.

Step 2

Analyze

Every tool is security-scored, categorized, and cross-referenced across all sources for comprehensive coverage.

Step 3

Display

Browse, search, and compare tools with detailed profiles showing directory presence, stats, and security grades.

Understanding the AI Agent Ecosystem

The building blocks powering the next generation of AI applications

133,536MCP Servers

What Are MCP Servers?

Model Context Protocol (MCP) servers are standardized interfaces that let AI models interact with external tools and data sources -- bridging large language models with file systems, databases, APIs, and web services. Originally developed by Anthropic, MCP has become the dominant protocol for extending AI agent capabilities.

297,414AI Skills

AI Skills and Agent Capabilities

AI skills are modular capabilities that extend AI agents and language models. Unlike MCP servers which follow a specific protocol, skills encompass custom tool definitions, function calling schemas, and plugin architectures across multiple platforms -- giving developers a unified view rather than searching dozens of disconnected registries.

A+ to FSecurity Grades

Security Scoring for AI Tools

Every indexed tool undergoes automated security analysis covering code quality, dependency vulnerabilities, maintenance frequency, license compliance, and known CVEs. AI agents that execute code or install packages on behalf of users introduce supply-chain risk -- security grades help developers quickly identify trustworthy tools for production use.

55+Data Sources

Cross-Directory Aggregation

A single MCP server might be listed on the official registry, published on npm, hosted on GitHub, and curated in multiple community directories. Skillful.sh aggregates and cross-references tools from 55+ sources into one unified directory with live GitHub stats, package registry downloads, and cross-listing data so you can gauge true ecosystem adoption.

The Growth of the AI Agent Ecosystem

From a few hundred MCP servers at the start of 2025, the ecosystem now includes over 448,654 tools spanning MCP servers, AI skills, and autonomous agents. Skillful.sh tracks this growth in real time with ecosystem statistics, trending tools, and growth charts that show how the landscape is evolving week by week.

Ready to explore the ecosystem?

Browse thousands of MCP servers, skills, and agents. All in one place.