Backend and APIs

18,757 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.

auth-implementation

1489

sattva2020/skills

Skill Claude Code

Implement authentication and authorization in web applications. Use when adding login, signup, sessions, JWT tokens, OAuth, SSO, API key auth, role-based access control (RBAC), permissions, protected routes, middleware guards, password hashing, MFA/2FA, refresh token rotation, CSRF protection, or integrating auth…

not rated 2 1mo ago A 136 tokens

inkbox-python

1490

VectorlyApp/skills

Skill Claude Code

Use when writing Python code that imports from inkbox, uses pip install inkbox, or when adding email, phone, or agent identity features using the Inkbox Python SDK.

not rated 2 6mo ago A 41 tokens

nestjs-best-practices

1491

Ahmustufa/nestjs-best-practices-skill

Skill Claude CodeCodex

NestJS expert best practices for writing, reviewing, or refactoring NestJS code. Triggers on tasks involving NestJS modules, controllers, services, DTOs, guards, interceptors, TypeORM entities, authentication, configuration, or performance patterns.

not rated 2 5mo ago A 56 tokens

claude-api

1492

turf0909/sleep-code

Skill Claude CodeCodex

You are an expert at building applications with the Anthropic Claude API. Help the user write correct, idiomatic code using the latest API patterns and SDK conventions.

not rated 2 4mo ago A 0 tokens

goperigon/skills

Skill Claude CodeCodex

Best practices for building with the Perigon News Intelligence API. Use this skill when searching or filtering news articles, tracking evolving stories, generating AI-powered summaries, performing semantic vector search over news or Wikipedia, querying people, companies, journalists, or sources databases, or…

not rated 2 6mo ago A 70 tokens original Apache-2.0

api-scaffold

1494

xmqywx/claude-code-skills

Skill Claude CodeCodex

Scaffold a production-ready REST API endpoint with CRUD operations, input validation, error handling, rate limiting, and test skeletons. Supports Express and Fastify.

not rated 2 5mo ago A 36 tokens

django

1495

Mariatta/claude-skills

Skill Claude CodeCodex

House conventions for writing code in a Django codebase: formatter and linter compliance (black, isort, djlint, flake8), imports at module top with real refactors for circular imports, docstrings over comment blocks, maintained libraries over hand-rolled code, full test coverage as a merge gate, N+1 queries caught at…

not rated 2 29d ago A 210 tokens original MIT

supabase

1496

heyadam/composer

MCP server Claude CodeCodexCursor +2

One of 2 in .mcp.json

Supabase's hosted MCP server: lets the agent manage projects, tables, SQL and migrations. Remote server at mcp.supabase.com.

not rated 2 4mo ago A tokens not measured

claude-feature

1498

Iteam-company/claude-code-boilerplates

Skill Claude Code

Add an AI feature powered by Claude (Anthropic) to this Next.js project — lib/claude.ts client, streaming chat route, tool-use pattern, prompt caching, and credit deduction per AI call. Use this skill whenever the user asks about Claude AI, Anthropic API, streaming AI responses, AI chat, tool use, prompt caching, or…

not rated 2 8d ago A 81 tokens

backend-standards

1499

ferreyes/ai-specs

Cursor rule Cursor

Backend development standards, best practices, and conventions for the LTI Node.js/TypeScript/Express application including Domain-Driven Design, SOLID principles, architecture patterns, API design, and testing practices.

not rated 2 9mo ago A 8,739 tokens

backend-standards

1500

ASolisEk/ai-specs

Cursor rule Cursor

Backend development standards, best practices, and conventions for the LTI Node.js/TypeScript/Express application including Domain-Driven Design, SOLID principles, architecture patterns, API design, and testing practices.

not rated 2 6mo ago A 8,739 tokens

skills

1501

bybit-exchange/pay-docs

Skill Claude CodeCodex

Skill "skills" from bybit-exchange/pay-docs, covering bybit pay — ai integration skill, products overview, authentication (both products), required headers and signature construction.

not rated 2 3d ago A 0 tokens

webhook-system

1502

blunotech-dev/agents

Skill Claude CodeCodex

Build a production-grade outbound webhook system with retries, signing, failure tracking, and re-delivery. Use when implementing webhook delivery, event subscriptions, or handling webhook failures and reliability.

not rated 2 4mo ago A 40 tokens

CreateDer/agents

Skill Claude CodeCodex

Comprehensive guide for building high-performance, type-safe web applications with ElysiaJS framework. Covers plugin architecture, schema validation, lifecycle hooks, authentication patterns, database integration, and Bun runtime optimization. Use when building REST APIs, microservices, or backend applications with…

not rated 2 2mo ago A 86 tokens

ergo

1504

ergo-services/claude

Plugin Claude Code

Bundles 2 skills, 2 agents · 282 tokens together

Agents and skills for building and operating distributed actor-based systems with Ergo Framework (v3.3+). Includes framework-architect (design), devops (diagnostics), and matching skills with progressive-disclosure reference files.

not rated 2 changed 7d ago A tokens not measured original MIT

chicago-cityscape-api

1505

ChicagoCityscape/claude-code-skills

Skill Claude Code

Describes how to interact with the Chicago Cityscape API. Use when the user asks about API access, API keys, API endpoints, how to query property data programmatically, or how to integrate Chicago Cityscape data into their own application. Covers the Property Report API, Zoning API, Parcels API, Places API, Sources…

not rated 2 1mo ago A 148 tokens

laravel-boost

1506

MedouneSGB/postvisit

MCP server Claude CodeCodexCursor +2

MCP server "laravel-boost" as configured in MedouneSGB/postvisit. Launched with php ./artisan boost:mcp.

not rated 2 6mo ago A tokens not measured

api-design

1507

aps08/fullstack-clean-architecture

Skill Claude CodeCodex

Guidelines for RESTful API design, endpoint naming conventions, and standardizing JSON responses.

not rated 2 3mo ago A 21 tokens original Apache-2.0

mgr-rest-controller

1508

Ixaya/Manager

Skill Claude CodeCodex

Use when creating or editing a REST API endpoint (controllers under modules//controllers/api/), handling API authentication, or returning JSON responses in this codebase. Teaches the APPRestController conventions of the ixaya/manager framework — authoverride ordering, group/level gating, response envelope — instead of…

not rated 2 3d ago A 77 tokens

commune-email

1509

commune-dev/commune-cookbook

Skill Claude CodeCodex

I give you a real email inbox and let you send, receive, search, and manage email threads programmatically via the Commune API. Every inbox I create is RFC 5322 compliant — replies thread correctly in any email client, including Gmail, Apple Mail, and Outlook.

not rated 2 2mo ago A 0 tokens copy · 100% MIT

mulesoft-api-patterns

1511

Naoufal-Charafat/muleSoft-skills

Skill Claude CodeCodex

Generate complete MuleSoft projects implementing API design patterns from JJ Geewax's "API Design Patterns" book. Use this skill when users request to create MuleSoft integration projects, API archetypal patterns, REST API implementations, or examples based on industry-standard API patterns including Long Running…

not rated 2 4mo ago A 106 tokens

hexagonal-parallelism

1512

juliosilvacwb/agent-driven-development

Skill Claude CodeCodex

Guides the Architect Agent to apply Hexagonal Architecture (Ports & Adapters) and Dependency Inversion to maximize component decoupling, enabling the highest degree of parallel task execution by AI agents. Use this skill whenever designing the architecture for a new feature or module.

not rated 2 10d ago A 59 tokens

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