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Discover the toolingbehind modern intelligence

The operating system for AI infrastructure discovery. Search a live map of MCP servers, AI agents, LLM tools, automation systems, and developer infrastructure.

 
 
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theskillcity

Discover the toolingbehind modern intelligence

A live, classified map of MCP servers, AI agents, LLM tooling, automation systems, and developer infrastructure — searchable in one place.

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A live, classified index of the open-source tooling behind modern AI — MCP servers, AI agents, LLM tooling, automation systems, skills and developer infrastructure — all searchable and mapped in one place. The homepage cityscape lets you explore by category; everything else is a click away.

0skills
0MCP servers
0agents

Browse by domain — interactive skyline. Each building links to a domain.

DEVTOOLSLLMAGENTSAUTOMATIONWORKCLOUDWRITINGSECURITYWEB/APPMEDIADATA/ML
3.9kAll domains

Agent Engineering

3.9k

Agentic systems, autonomous workflows, coding agents, multi-agent frameworks.

Specializations

AllGeneral4.4k reposAgent Frameworks3.9k reposCoding Agents2.9k reposMulti-Agent Systems2.0k reposAutonomous Agents1.7k reposMemory & Context639 reposBrowser & Computer Use222 repos
0specializations
0repos
0skills
0MCP servers
0agents
langchain-ai

langchain

langchain-ai
AGENT

The agent engineering platform.

LLM & GenAI Engineering#agents#ai
138.0k22.8kPython
bytedance

deer-flow

bytedance
AGENT

An open-source long-horizon SuperAgent harness that researches, codes, and creates. With the help of sandboxes, memories, tools, skill, subagents and message gateway, it handles different levels of tasks that could take minutes to hours.

Agent Engineering#agent#agentic
70.4k9.5kPython
crewAIInc

crewAI

crewAIInc
AGENT

Framework for orchestrating role-playing, autonomous AI agents. By fostering collaborative intelligence, CrewAI empowers agents to work together seamlessly, tackling complex tasks.

Agent Engineering#agents#ai
52.4k7.3kPython
santifer

career-ops

santifer
AGENT

AI-powered job search system built on Claude Code. 14 skill modes, Go dashboard, PDF generation, batch processing.

LLM & GenAI Engineering#ai-agent#anthropic
48.6k10.1kJavaScript
agno-agi

agno

agno-agi
AGENT

Build, run, and manage agent platforms.

Agent Engineering#agents#ai
40.4k5.4kPython
letta-ai

letta

letta-ai
AGENT

Letta is the platform for building stateful agents: AI with advanced memory that can learn and self-improve over time.

Agent Engineering#ai#ai-agents
23.0k2.5kPython
RightNow-AI

openfang

RightNow-AI
SKILL

Open-source Agent Operating System

Agent Engineering#agent-framework#ai-agents
17.8k2.3kRust
trycua

cua

trycua
AGENT

Open-source infrastructure for Computer-Use Agents. Sandboxes, SDKs, and benchmarks to train and evaluate AI agents that can control full desktops (macOS, Linux, Windows).

Agent Engineering#agent#ai-agent
17.6k1.1kHTML
pydantic

pydantic-ai

pydantic
AGENT

AI Agent Framework, the Pydantic way

Agent Engineering#agent-framework#genai
17.4k2.2kPython
QwenLM

Qwen-Agent

QwenLM
AGENT

Agent framework and applications built upon Qwen>=3.0, featuring Function Calling, MCP, Code Interpreter, RAG, Chrome extension, etc.

Agent Engineering
16.4k1.6kPython
eigent-ai

eigent

eigent-ai
SKILL

Eigent: The Open Source Cowork Desktop to Unlock Your Exceptional Productivity. Local and Free Alternative to Claude Cowork.

Agent Engineering#agent-framework#agent-skills
14.2k1.7kTypeScript
ag-ui-protocol

ag-ui

ag-ui-protocol
AGENT

AG-UI: the Agent-User Interaction Protocol. Bring Agents into Frontend Applications.

Agent Engineering#ag-ui-protocol#agent-frontend
14.0k1.3kTypeScript
simular-ai

Agent-S

simular-ai
AGENT

Agent S: an open agentic framework that uses computers like a human

Agent Engineering#agent-computer-interface#ai-agents
11.8k1.4kPython
alibaba

OpenSandbox

alibaba
AGENT

Secure, Fast, and Extensible Sandbox runtime for AI agents.

Agent Engineering#ai#ai-agent
10.9k875Python
microsoft

agent-framework

microsoft
AGENT

A framework for building, orchestrating and deploying AI agents and multi-agent workflows with support for Python and .NET.

Agent Engineering#agent-framework#agentic-ai
10.9k1.8kPython
cloudflare

moltworker

cloudflare
AGENT

Run OpenClaw, (formerly Moltbot, formerly Clawdbot) on Cloudflare Workers

Agent Engineering#ai-agents#cloudflare-workers
9.9k1.8kTypeScript
OpenPipe

ART

OpenPipe
AGENT

Agent Reinforcement Trainer: train multi-step agents for real-world tasks using GRPO. Give your agents on-the-job training. Reinforcement learning for Qwen3.6, GPT-OSS, Llama, and more!

Agent Engineering#agent#agentic-ai
9.9k876Python
droidrun

mobilerun

droidrun
AGENT

Automate your mobile devices with natural language commands - an LLM agnostic mobile Agent 🤖

Agent Engineering#ai-agents#android
8.4k878Python
MervinPraison

PraisonAI

MervinPraison
AGENT

PraisonAI 🦞 — Hire a 24/7 AI Workforce. Stop writing boilerplate and start shipping autonomous self-improving agents that research, plan, code, and execute tasks. Deployed in 5 lines of code with built-in memory, RAG, and support for 100+ LLMs.

Agent Engineering#agents#ai
8.0k1.2kPython
EvoMap

evolver

EvoMap
MCP + SKILL

The GEP-powered self-evolving engine for AI agents. Auditable evolution with Genes, Capsules, and Events. | evomap.ai

Agent Engineering#a2a#agent-evolution
7.8k781JavaScript
yizhiyanhua-ai

fireworks-tech-graph

yizhiyanhua-ai
SKILL

Generate production-quality SVG+PNG technical diagrams from natural language. 7 styles, UML support, and AI/Agent workflow patterns.

Developer Tooling#agent-workflows#ai
7.4k639Python
julep-ai

julep

julep-ai
AGENT

Deploy serverless AI workflows at scale. Firebase for AI agents

Agent Engineering#agents#ai
6.6k973Jupyter Notebook
revfactory

harness

revfactory
SKILL

A meta-skill that designs domain-specific agent teams, defines specialized agents, and generates the skills they use.

LLM & GenAI Engineering#claude-code#claude-code-plugin
5.9k779HTML
sentient-agi

ROMA

sentient-agi
AGENT

Recursive-Open-Meta-Agent v0.1 (Beta). A meta-agent framework to build high-performance multi-agent systems.

Agent Engineering
5.1k771Python