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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
943All domains

LLM & GenAI Engineering

943

LLM apps, prompts, RAG, embeddings, model gateways, inference utilities.

Specializations

AllGeneral6.9k reposRAG & Retrieval5.5k reposPrompts & Prompt Eng.2.5k reposGateways & Routers943 reposChatbots & Assistants821 reposInference & Serving582 reposEvaluation & Guardrails292 reposEmbeddings & Vectors266 reposFine-tuning34 repos
0specializations
0repos
0skills
0MCP servers
0agents
BerriAI

litellm

BerriAI
MCP + SKILL

Python SDK, Proxy Server (AI Gateway) to call 100+ LLM APIs in OpenAI (or native) format, with cost tracking, guardrails, loadbalancing and logging. [Bedrock, Azure, OpenAI, VertexAI, Cohere, Anthropic, Sagemaker, HuggingFace, VLLM, NVIDIA NIM]

LLM & GenAI Engineering#ai-gateway#anthropic
49.3k8.6kPython
danny-avila

LibreChat

danny-avila
MCP + SKILL

Enhanced ChatGPT Clone: Features Agents, MCP, DeepSeek, Anthropic, AWS, OpenAI, Responses API, Azure, Groq, o1, GPT-5, Mistral, OpenRouter, Vertex AI, Gemini, Artifacts, AI model switching, message search, Code Interpreter, langchain, DALL-E-3, OpenAPI Actions, Functions, Secure Multi-User Auth, Presets, open-source fo

LLM & GenAI Engineering#ai#anthropic
38.1k7.8kTypeScript
Wei-Shaw

sub2api

Wei-Shaw
SKILL

Sub2API 一站式开源中转服务,让 Claude、Openai 、Gemini、Antigravity订阅统一接入,支持拼车共享,更高效分摊成本,原生工具无缝使用。

LLM & GenAI Engineering#2api#antigravity2api
25.3k4.9kGo
decolua

9router

decolua
SKILL

Unlimited FREE AI coding. Connect Claude Code, Codex, Cursor, Cline, Copilot, Antigravity to FREE Claude/GPT/Gemini via 40+ providers. Auto-fallback, RTK -40% tokens, never hit limits.

LLM & GenAI Engineering#ai-agents#ai-gateway
16.3k2.4kJavaScript
Portkey-AI

gateway

Portkey-AI
MCP

A blazing fast AI Gateway with integrated guardrails. Route to 1,600+ LLMs, 50+ AI Guardrails with 1 fast & friendly API.

LLM & GenAI Engineering#ai-gateway#gateway
12.0k1.1kTypeScript
BeehiveInnovations

pal-mcp-server

BeehiveInnovations
MCP

The power of Claude Code / GeminiCLI / CodexCLI + [Gemini / OpenAI / OpenRouter / Azure / Grok / Ollama / Custom Model / All Of The Above] working as one.

LLM & GenAI Engineering
11.5k998Python
BlockRunAI

ClawRouter

BlockRunAI
SKILL

The agent-native LLM router for OpenClaw. 41+ models, <1ms routing, USDC payments on Base & Solana via x402.

LLM & GenAI Engineering#ai#ai-agents
6.5k597TypeScript
strands-agents

harness-sdk

strands-agents
MCP + SKILL

A model-driven approach to building AI agents in just a few lines of code.

LLM & GenAI Engineering#agentic#agentic-ai
6.0k863Python
strands-agents

sdk-python

strands-agents
MCP + SKILL

A model-driven approach to building AI agents in just a few lines of code.

LLM & GenAI Engineering#agentic#agentic-ai
6.0k855Python
diegosouzapw

OmniRoute

diegosouzapw
MCP + SKILL

Never stop coding. Free AI gateway: one endpoint, 160+ providers (50+ free), connect Claude Code, Codex, Cursor, Cline & Copilot to FREE Claude/GPT/Gemini. RTK+Caveman stacked compression saves 15-95% tokens, smart auto-fallback, MCP/A2A, multimodal APIs, Desktop/PWA.

LLM & GenAI Engineering#a2a#ai-agents
5.7k990TypeScript
sooperset

mcp-atlassian

sooperset
MCP

MCP server for Atlassian tools (Confluence, Jira)

Work & Productivity#atlassian#confluence
5.4k1.2kPython
rikkahub

rikkahub

rikkahub
MCP + SKILL

RikkaHub is an Android APP that supports for multiple LLM providers.

LLM & GenAI Engineering#android#app
5.1k340Kotlin
mock-server

mockserver-monorepo

mock-server
MCP + SKILL

MockServer enables easy mocking of any system you integrate with via HTTP or HTTPS with clients written in Java, JavaScript and Ruby. MockServer also includes a proxy that introspects all proxied traffic including encrypted SSL traffic and supports Port Forwarding, Web Proxying (i.e. HTTP proxy), HTTPS Tunneling Proxy

LLM & GenAI Engineering#ai#chaos-engineering
4.9k1.1kJava
modelcontextprotocol

go-sdk

modelcontextprotocol
MCP

The official Go SDK for Model Context Protocol servers and clients. Maintained in collaboration with Google.

Developer Tooling#go#mcp
4.7k448Go
lemonade-sdk

lemonade

lemonade-sdk
MCP

Lemonade helps users discover and run local AI apps by serving optimized LLMs right from their own GPUs and NPUs. Join our discord: https://discord.gg/5xXzkMu8Zk

LLM & GenAI Engineering#ai#amd
4.3k339C++
tiann

hapi

tiann
SKILL

App for Claude Code / Codex / Gemini / OpenCode, vibe coding anytime, anywhere

LLM & GenAI Engineering#app#claude-code
4.2k450TypeScript
srbhptl39

MCP-SuperAssistant

srbhptl39
MCP

Brings MCP to ChatGPT, DeepSeek, Perplexity, Grok, Gemini, Google AI Studio, OpenRouter, DeepSeek, T3 Chat and more...

LLM & GenAI Engineering#aistudio#assistant
2.5k328TypeScript
kaitranntt

ccs

kaitranntt
SKILL

Switch between Claude accounts, Gemini, Copilot, OpenRouter (300+ models) via CLIProxyAPI OAuth proxy. Visual dashboard, remote proxy support, WebSearch fallback. Zero-config to production-ready.

LLM & GenAI Engineering#ai-gateway#anthropic-api
2.5k208TypeScript
papersgpt

papersgpt-for-zotero

papersgpt
MCP + SKILL

A powerful Zotero AI and MCP plugin with ChatGPT, Gemini 3.5, Claude, DeepSeek V4, Grok, OpenRouter, Kimi 2.6, GLM 5, SiliconFlow, GPT-oss, Gemma 4, Qwen 3.7

LLM & GenAI Engineering#ai#chat
2.4k80JavaScript
samanhappy

mcphub

samanhappy
MCP

A unified hub for centrally managing and dynamically orchestrating multiple MCP servers/APIs into separate endpoints with flexible routing strategies.

Developer Tooling#mcp#mcp-gateway
2.2k261TypeScript
AmoyLab

Unla

AmoyLab
MCP

🧩 MCP Gateway - A lightweight gateway service that instantly transforms existing MCP Servers and APIs into MCP servers with zero code changes. Features Docker deployment and management UI, requiring no infrastructure modifications.

Developer Tooling#awesome#mcp
2.1k172TypeScript
Kochava-Studios

witsy

Kochava-Studios
MCP + SKILL

Witsy: desktop AI assistant / universal MCP client

LLM & GenAI Engineering#anthropic#deepseek
2.0k161TypeScript
xingkongliang

skills-manager

xingkongliang
AGENT

A lightweight desktop app to manage, sync, and organize AI agent skills across 15+ coding tools — Cursor, Claude Code, Codex, Copilot, and more.

Developer Tooling
1.8k157Rust
liaohch3

claude-tap

liaohch3
SKILL

Intercept and inspect Coding Agent API traffic from Claude Code, Codex CLI, Gemini CLI, Cursor CLI, OpenCode, Kimi, Pi, and Hermes in a local trace viewer.

LLM & GenAI Engineering#agent-debugging#agent-observability
1.4k147Python