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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.

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0agents

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

DEVTOOLSLLMAGENTSAUTOMATIONWORKCLOUDWRITINGSECURITYWEB/APPMEDIADATA/ML
85All domains

Security Engineering

85

Penetration testing, security auditing, cryptography, encryption, and network security utilities.

Specializations

AllPentesting & Offensive210 reposVulnerability Scanning178 reposGeneral153 reposAuth & Identity85 reposSecrets & Compliance71 reposCryptography35 repos
0specializations
0repos
0skills
0MCP servers
0agents
casdoor

casdoor

casdoor
MCP

An open-source Agent-first Identity and Access Management (IAM) /LLM MCP & agent gateway and auth server with web UI supporting OpenClaw, MCP, OAuth, OIDC, SAML, CAS, LDAP, SCIM, WebAuthn, TOTP, MFA, Face ID, Google Workspace, Azure AD

Security Engineering#agent#agentic-ai
13.7k1.7kGo
tailscale

tsidp

tailscale
MCP

A simple OIDC / OAuth Identity Provider (IdP) server for your tailnet.

Security Engineering#idp#mcp
59547Go
hyprmcp

jetski

hyprmcp
MCP

Authentication, analytics, and prompt visibility for MCP servers with zero code changes. Supports OAuth2.1, DCR, real-time logs, and client onboarding out of the box

Security Engineering#ai#angular
2109TypeScript
passlock-dev

passlock

passlock-dev
SKILL

Passkey authentication for Astro, Sveltekit and other frameworks

Security Engineering#astro#authentication
18810TypeScript
freema

openclaw-mcp

freema
MCP

🦞 MCP server for OpenClaw - secure bridge between Claude.ai and your self-hosted OpenClaw assistant with OAuth2 authentication

Security Engineering#docker-compose#mcp-server
17224TypeScript
wso2-attic

open-mcp-auth-proxy

wso2-attic
MCP

Authentication and Authorization Proxy for MCP Servers

Security Engineering#authorization#mcp
9023Go
mcp-auth

python

mcp-auth
MCP

🔐 Plug-and-play auth for Python MCP servers.

Security Engineering#authentication#authorization
574Python
atrawog

mcp-oauth-gateway

atrawog
MCP

An OAuth 2.1 Authorization Server that adds authentication to any MCP (Model Context Protocol) server without code modification.

Security Engineering#mcp#oauth2
569Python
mcp-auth

js

mcp-auth
MCP

🔐 Plug-and-play auth for Node.js MCP servers.

Security Engineering#authentication#authorization
504TypeScript
tuannvm

oauth-mcp-proxy

tuannvm
MCP

OAuth 2.1 authentication library for Go MCP servers

Security Engineering#authentication#authorization
3115Go
janwilmake

universal-mcp-oauth

janwilmake
MCP

Universal MCP IdP (Identity Provider) - Support Thousands of Integrations, Zero Maintenance

Security Engineering
303HTML
Azure-Samples

remote-mcp-webapp-python-auth-oauth

Azure-Samples
MCP

No description provided.

Security Engineering
2711Python
kw510

strava-mcp

kw510
MCP

A Model Context Protocol (MCP) server with Strava OAuth integration, built on Cloudflare Workers. Enables secure authentication and tool access for MCP clients like Claude and Cursor through Strava login. Perfect for developers looking to integrate Strava authentication with AI tools.

Security Engineering#authentication#cloudflare-workers
268TypeScript
famma-ai

mcp-auth

famma-ai
MCP

MCP Auth via Reverse Proxy

Security Engineering#auth#cloudflare
262TypeScript
mishrasanjeev

grantex

mishrasanjeev
MCP + SKILL

grantex is the identity, authorization, and audit infrastructure for AI agents — the "OAuth moment" for the agentic internet. We provide a universal SDK and cloud service that lets any AI agent act on behalf of a human with scoped, revocable permissions, cryptographic identity, and an immutable audit trail. Developers

Security Engineering#ai#ai-agents
257TypeScript
obot-platform

mcp-oauth-proxy

obot-platform
MCP

Oauth 2.1 proxy server that can autheticate client and proxy requests to mcp server

Security Engineering
2415Go
Kehrlann

spring-ai-mcp-authorization-demo

Kehrlann
MCP

No description provided.

Security Engineering
1911Java
hannesill

Gatelet

hannesill
MCP

Self-hosted MCP proxy that gives AI agents fine-grained access to your accounts (e.g. GMail, GCal, Outlook) – without giving away the keys.

Security Engineering#agents#docker
121TypeScript
blackchoey

remote-mcp-apim-oauth-prm

blackchoey
MCP

Leverage Protected Resource Metadata (PRM) for MCP server authorization

Security Engineering
1112Bicep
ksankaran

mcp-b2c-oauth

ksankaran
MCP

MCP Server secured by B2C Google OAuth

Security Engineering
113Python
agenticpoa

apoa

agenticpoa
MCP

Agentic Power of Attorney (APOA) | Authorization infrastructure for AI agents

Security Engineering#ai-agents#ai-safety
112TypeScript
tigrisdata

mcp-oidc-provider

tigrisdata
MCP

Open-sourced mcp-oidc-provider: a minimal, vendor-neutral OIDC layer that sits between MCP clients and your upstream IdP (Auth0/Clerk/Okta).

Security Engineering#auth#mcp
111TypeScript
scalekit-inc

scalekit-sdk-python

scalekit-inc
MCP

Python SDK for Scalekit — auth stack for agents. SAML, OIDC, SCIM, MCP Auth, agent auth, tool-calling.

Security Engineering#agent-auth#authentication
105Python
localden

mcp-auth-servers

localden
MCP

🔒 Reference MCP servers that demo how authentication works with the current Model Context Protocol spec.

Security Engineering#authentication#authorization
102TypeScript