Backend and APIs

23,181 mods in this category, of every kind an agent can take. Each one carries what it costs per session, what the scan found, and whether it is the original.

loiane/specs-driven-development-spring-angular

Skill Claude Code

Spring Framework 7 / Spring Boot 4 idioms and defaults. Use when writing or reviewing controllers, services, configuration, HTTP clients, async/virtual-thread code, or anything touching Spring's programming model.

not rated 58 2mo ago A 50 tokens original MIT

patricio0312rev/skills

Skill Claude CodeCodex

Optimizes Nginx configurations for performance, security, caching, and load balancing with modern best practices. Use when users request "Nginx setup", "reverse proxy", "load balancer", "web server config", or "Nginx optimization".

not rated 58 7mo ago A 58 tokens original MIT

vapi

267

VapiAI/mcp-server

Skill Claude CodeCodex

Build AI voice assistants and phone agents with Vapi. Use this skill when users want to create voice agents, phone bots, IVR systems, outbound calling campaigns, or any voice-based AI application.

not rated 57 22d ago A 43 tokens original MIT

nuxt-users

268

rrd108/nuxt-users

Skill Claude CodeCodex

Configure and use the nuxt-users module for Nuxt 3 and Nuxt 4. Use when adding authentication, user management, roles, password reset, database setup (SQLite/MySQL/PostgreSQL), or CLI commands (migrate, create-user). Covers nuxt.config (nuxtUsers), composables (useAuthentication, useUsers, usePublicPaths…

not rated 57 +1 yesterday A 110 tokens

umbraco-mcp-cms

269

Matthew-Wise/umbraco-mcp

MCP server Claude CodeCodexCursor +2

A model context protocol (MCP) server for Umbraco CMS. Runs locally from the @umbraco-mcp/umbraco-mcp-cms npm package.

not rated 57 11mo ago A tokens not measured original MIT archived

IgniteUI/igniteui-react

Skill Claude Code

Migrate from Grid Lite (IgrGridLite) to the premium Ignite UI for React Data Grid (IgrGrid) — imports, theme CSS, column and template API changes, sorting and filtering, remote data replacing dataPipelineConfiguration, and the toolbar/export APIs. Use when Grid Lite lacks a needed feature such as editing, selection…

not rated 56 changed 2d ago A 89 tokens original MIT

extending-ui

272

Elumenotion/GuideAnts

Cursor rule Cursor

GuideAntsApi.DataModel/ Models/ # Add/modify entity classes ApplicationDbContext.cs # Configure relationships.

not rated 57 +1 2d ago A 0 tokens original Apache-2.0

developers-mcp

273

Mastercard/developers-agent-toolkit

MCP server Claude CodeCodexCursor +2

Access Mastercard Developers APIs, documentation, and API specifications through MCP. Runs locally from the @mastercard/developers-mcp npm package.

not rated 55 2mo ago A tokens not measured original MIT

widget-authoring

274

ThinkEx-OSS/thinkex

Skill Claude CodeCodex

Author or edit ThinkEx widgets, which are self-contained interactive HTML blocks inside documents. Use when the user explicitly asks for a widget, asks for interaction or live computation, or wants a document visual that ordinary blocks cannot express.

not rated 55 yesterday A 49 tokens original MIT

byok-relay

276

avikalpg/byok-relay

Skill Claude CodeCodex

OpenAI-compatible LLM gateway for any client-side application (browser, mobile, React Native, Flutter, VS Code extensions, browser extensions, Electron, smart TV, and more). Routes requests to OpenAI, Anthropic, Gemini, Groq, Mistral, and 200+ models, handling CORS, key encryption, and streaming without a dedicated…

not rated 54 today A 131 tokens original Apache-2.0

create-mcp-tool

277

nickytonline/mcp-typescript-template

Skill Claude CodeCodex

Add a new MCP tool to this server template. Use when asked to "add a tool", "add an MCP tool", "create a new tool", or "implement a new tool".

not rated 54 27d ago A 43 tokens original MIT

rails-upgrade

278

robzolkos/skill-rails-upgrade

Skill Claude CodeCodex

Analyze Rails application upgrade path. Checks current version, finds latest release, fetches upgrade notes and diffs, then performs selective upgrade preserving local customizations.

not rated 54 7mo ago A 35 tokens

dodopayments

279

dodopayments/dodopayments-typescript

MCP server Claude CodeCodexCursor +2

The official TypeScript library for the Dodo Payments API. Runs locally from the dodopayments npm package.

not rated 54 today A tokens not measured original Apache-2.0

auth

280

henrydiaosi/AI-framework

Skill Claude CodeCodex

A guide to the authentication module in the AI-framework project. Authentication is the process of checking who a user is before allowing access.

not rated 53 5mo ago A 1 tokens

django-celery-expert

281

wilfredinni/django-starter-template

Skill Claude CodeCodex

Expert Django Celery guidance for asynchronous task processing. Use when designing background tasks, configuring Celery workers, handling task retries and errors, optimizing Celery performance, implementing periodic tasks with Celery Beat, or setting up production monitoring for Celery. Do not use for general Django…

not rated 53 11d ago A 115 tokens original MIT

net-route-mapper

282

RuoJi6/net-audit-skills

Skill Claude CodeCodex

A tool that maps HTTP routes and their parameters in .NET applications. It can inspect source code or decompiled files and save the results as a Markdown document.

not rated 53 +1 3mo ago A 158 tokens

debug-wing

283

ehrlich-b/wingthing

Skill Claude Code

Diagnose wing connectivity issues. Checks auth, relay connection, daemon status, and identifies why a wing might not appear in the web UI.

not rated 53 +1 today A 31 tokens original MIT

EnterpriseMCP

284

microsoft/EnterpriseMCP

MCP server Claude CodeCodexCursor +2 ✓ vendor

Official Microsoft MCP Server to query Microsoft Entra data using natural language. Remote server at mcp.svc.cloud.microsoft.

not rated 53 +1 3mo ago A tokens not measured CC-BY-4.0

WPDevelopers/essential-addons-for-elementor-lite

Skill Claude Code

Audit and fix WordPress AJAX handlers registered via wpajaxnopriv that build WPQuery args from client input. Catches the common pattern where a handler overrides poststatus/posttype to 'any' (or trusts client-supplied postin / author / metaquery) and ends up exposing private, draft, pending, future, trash, or…

not rated 53 2d ago A 135 tokens

fubon-trade-api

286

Kelu0427/fubon-tradeapi-ai-skill

Skill Claude CodeCodex

A coding guide for Fubon Neo, also called Fubon Securities TradeAPI, a Taiwanese brokerage API for market data, trading, accounts, and related workflows.

not rated 52 3mo ago A 108 tokens original MIT

vovk

287

finom/vovk

Plugin Claude Code

Bundles 15 skills · 3,917 tokens together

Claude Code plugin for Vovk.ts — topic-based skills covering segments, procedures, validation, SSR, and project setup.

not rated 52 9d ago A tokens not measured original MIT

backend-dev

288

julianromli/droid-factory-template

Skill Claude CodeCodex

Comprehensive backend development workflow that orchestrates expert analysis, architecture design, implementation, and deployment using the integrated toolset. Handles everything from API design and database architecture to security implementation and DevOps automation.

not rated 52 9mo ago A 43 tokens original MIT

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