13,243 tagged Backend and APIs, measured the same way as everything else here.
Browse within: LLM 148agents 117skills 114agent 88agentic-ai 85api 80azure 68antigravity 66ai-coding 63claude-code-plugin 61cursor 54cli 53cybersecurity 53javascript 52
Skill Claude CodeCodex
Master C#/.NET backend development patterns for building robust APIs, MCP servers, and enterprise applications. Covers async/await, dependency injection, Entity Framework Core, Dapper, configuration, caching, and testing with xUnit. Use when developing .NET backends, reviewing C# code, or designing API architectures.
whoamihappyhacking/lazycat-skills
Skill Claude CodeCodex
A guide for connecting Lazycat MicroServer apps to its official sign-in and access-control systems. It covers OIDC single sign-on, user identity from HTTP headers, API tokens, and separate access rules for public paths.
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".
Skill Claude CodeCodex
Audit a Laravel application's performance deeply and safely: unnecessary queries, N+1, collection vs database work, memory amplification, repeated computation, I/O, queues, and rendering cost — verifying that every proposed optimization preserves behavior before reporting it. Use when auditing performance or…
finsilabs/awesome-ecommerce-skills
Skill Claude CodeCodex
Create custom WooCommerce plugins using action/filter hooks, the Settings API, and REST API extensions to add features without modifying core.
Skill Claude CodeCodex
Integrate applications with AI Gateway using @macpaw/ai-sdk. Use for NestJS, Next.js, Vercel AI SDK, raw fetch migrations, video generation, voice listing, text-to-speech, credit balance queries, MacPaw AI, Setapp AI, createAIGatewayProvider, createGatewayFetch, createVideoClient, createVoiceClient…
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.
Advance-Technologies-Foundation/clio
Skill Codex
Create, update, and validate custom Creatio Configuration Web Services and their tests. Use when users need to expose custom backend endpoints in Creatio, wire service contracts/implementations, return structured success/error results, or verify endpoints with integration-style and unit tests.
Skill Claude CodeCodex needs its repo
A guide to building an ErisPulse adapter, which connects a chat platform to the framework. It explains how to translate platform events and messages into ErisPulse's common format.
Skill Claude CodeCodex
Configure and use the nuxt-users module for Nuxt. 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, usePasswordValidation…
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…
Mastercard/developers-agent-toolkit
Skill Claude CodeCodex
Integration guidance for Mastercard APIs. Covers resolving a service's ID from its name, confirming a service's auth type before writing auth code, routing to the right authentication guide, finding an operation's request and response schema, sandbox versus production base URLs, and what Mastercard's error responses…
SalesforceCommerceCloud/b2c-developer-tooling
Skill Claude CodeCodex
Required before scapisearch or scapiexecute. Discover standard and live custom SCAPI contracts, compose Admin and Shopper requests, and verify changes under configured authentication and Safety Mode.
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.
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.
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.
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.
Skill Claude CodeCodex needs its repo
REST API gateway for ComfyUI servers. Workflow management, job queuing, webhooks, caching, auth, rate limiting, and image delivery (URL + base64).
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…
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.
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.
Skill Claude CodeCodex
Generate validated GraphQL queries against this server's schema.
Skill Claude CodeCodex
Add a new API endpoint following the project's layered architecture.
Skill Claude CodeCodex
Send messages to Discord channels via webhook or bot.
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