Backend and APIs

18,688 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.

architecture-patterns

769

garrettw/php-arch-skills

Skill Claude CodeCodex

Use this skill when choosing a system-level architecture (monolith, modular monolith, microservices, event-driven, serverless, clean/hexagonal, or DDD) for a new or growing PHP application, or when weighing a premature move to a more distributed style. Provides a decision guide and the common pitfalls that cause…

not rated 12 +1 1mo ago A 77 tokens original MPL-2.0

add-login

770

sso-ss/vibe-ship-it

Skill Claude CodeCodex

Adds user authentication. Triggers: 'login', 'log in', 'sign in', 'sign up', 'register', 'authentication', 'auth', 'only I can see', 'protect this page', 'private page', 'admin area', 'user accounts', 'members only', 'password protect'.

not rated 12 +2 5mo ago A 65 tokens original MIT

tony-stark

772

CohesiumAI/assemble

Agent Claude Code

Senior System Architect — software architecture design, stack selection, scalability, security, technical trade-offs. Call for any structural choice: stack, infra, patterns, migration, service decomposition.

not rated 11 2mo ago A 41 tokens original MIT

api-crud-generator

773

stevesolun/micro-skills

Skill Claude CodeCodex

Generate a complete CRUD REST API with validation, error handling, auth middleware, tests, and OpenAPI docs. Use when asked to create API endpoints, REST resources, or backend CRUD operations.

not rated 11 5mo ago A 43 tokens original MIT

hs-sql-agent

775

tse-wei-chen/hs-sql-agent

MCP server Cursor

MCP server "hs-sql-agent", hosted remotely at localhost, as configured in tse-wei-chen/hs-sql-agent.

not rated 11 changed 4d ago A tokens not measured original Apache-2.0

formio-uag

776

formio/uag

MCP server Claude CodeCodexCursor +2

One of 2 in server.json

The Universal Agent Gateway (UAG) enables in-process agentic automation using Form.io. Runs locally from the @formio/uag npm package. Needs 15 environment variables to run.

not rated 11 1mo ago A tokens not measured original MIT

elliot marketplace

777

EliBarak12/Elliot

Plugin Claude Code

Lists 2 plugins

Turn any API or database into agent-ready MCP tools. The Elliot marketplace ships the platform plugin (10 skills + MCP server + connector templates).

not rated 11 10d ago A tokens not measured original MIT

error-handling

778

davila7/claude-with-skills

Skill Claude Code

Error handling patterns for API endpoints. Use when implementing error handling, writing middleware, or reviewing how errors are caught and formatted in API code.

not rated 11 3mo ago A 32 tokens original MIT

terminal-mcp

779

mkpvishnu/terminal-mcp

MCP server Claude CodeCodexCursor +2

MCP server for interactive terminal sessions (SSH, REPLs, database CLIs). Runs locally from the terminal-mcp Python package. Needs 2 environment variables to run.

not rated 11 24d ago A tokens not measured original MIT

garveyhu/awesome-skills

Skill Claude CodeCodex

FastAPI project initialization, development guidance, and code review based on personal architectural conventions (uv+fastapi+sqlalchemy+alembic+loguru+ruff). Use when: (1) Creating/initializing a new FastAPI project, (2) Adding new endpoints, services, modules, or models to an existing FastAPI project, (3) Reviewing…

not rated 11 16d ago A 179 tokens

channel3-api

781

channel3-ai/skills

Skill Claude CodeCodex

Helps developers integrate the Channel3 API for product search (text, image, semantic, and agentic), "more like this" recommendations, multi-merchant offer comparison, URL-to-product lookup, conversational shopping agents, price tracking, click/transaction reporting, and affiliate commissions. Channel3 is a universal…

not rated 11 23d ago A 136 tokens

laravel-api

782

streeboga/laravel-api-skill

Skill Claude CodeCodex

Laravel API architecture and code generation guide. JSON:API v1.1 spec compliant. Enforces layered architecture: Controller → Service → Repository → QueryBuilder. Uses timacdonald/json-api for resources, spatie/laravel-query-builder for filtering/sorting. Covers DTOs, Enums, public keys, Scramble docs, testing.…

not rated 11 14d ago A 147 tokens original MIT

java-spring-framework

783

AyrtonAldayr/agent-skill-java-spring-framework

Skill Claude CodeCodex

Senior Java & Spring Boot 4 / Spring Framework 7 architect skill for 2026-standard development. Use when the user asks to build, scaffold, design, review, or explain Java applications using Spring Boot 4.x, Spring Framework 7.x, Spring Modulith, or any related Spring ecosystem project. Triggers include: creating REST…

not rated 11 6mo ago A 165 tokens

clasp-setup

784

mathruffian-dot/clasp-gas-skill

Skill Codex

Instructions for connecting a coding agent to Google Apps Script through `clasp`, Google’s command-line tool for downloading and uploading Apps Script code.

not rated 11 12d ago A SkillSpector: warn 103 tokens original MIT

flowforge-testing

787

Remon-16/flow-forge

Skill Claude CodeCodex

Generate, modify, validate, execute and triage Flow Forge API test cases. Use when the user wants to turn requirement documents, API documents, table structures or business rules into executable YAML/Excel test cases, revise existing cases after requirement/API changes, run cases with the Flow Forge executor and…

not rated 11 1mo ago A 90 tokens original MIT

py-clean-arch

788

CJHwong/py-clean-architecture-examples

Skill Claude CodeCodex

Use this skill when the user asks about Clean Architecture in Python — not generic theory, but the specific layer conventions (l1entities, l2usecases, l3interfaceadapters, l4frameworksanddrivers), folder patterns, boundary interfaces, and .importlinter.ini contracts from CJHwong/py-clean-architecture-examples. Fetches…

not rated 11 2mo ago A 113 tokens

validator

789

AIJeonCoding/multiAgentSettingSample

Agent Claude Code

A review process that checks whether a front end and back end agree on how an API works, including request fields, response data, types, and error codes.

not rated 11 4mo ago A 86 tokens original MIT

add-rest-endpoint

790

kousen/junie-training

Skill Claude CodeCodex

Scaffold a REST endpoint with controller, service, DTOs, tests, and error handling using project conventions.

not rated 11 1mo ago A 27 tokens original MIT

Vrivaans/invok-oss

Skill Claude CodeCodex

Documents the Invok HTTP execution API contract: how to call tools, how responses are structured, how to handle errors, and how to write defensive extraction code for workflow nodes. Use this skill when generating workflow code that calls Invok's /api/v1/execute/{toolCode} endpoint — not during the discovery and…

not rated 11 9d ago A 73 tokens AGPL-3.0

roots-ecosystem

792

aitormendez/roots-ecosystem-skill

Skill Claude CodeCodex

Roots ecosystem implementation guide for Bedrock, Sage, Acorn, Trellis, @roots/vite-plugin, roots/wp-config, WP Packages, Trellis CLI, and first-party Acorn extension packages. Use when working on Roots-based WordPress projects, especially for Bedrock configuration and Composer-managed WordPress, Sage Blade…

not rated 11 4mo ago A 152 tokens

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