13,244 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
jeremylongshore/plugins-nixtla
Skill Claude Code
Generate production-ready MCP server implementations from PRD tool specifications with schema validation, error handling, and testing infrastructure. Use when building MCP servers for Nixtla plugins, implementing tool handlers, or scaffolding server infrastructure. Trigger with 'build MCP server', 'generate MCP…
Skill Claude CodeCodex needs its repo
You are an agent that builds, analyses, and queries SkyCiv Structural 3D (S3D) structural models via the SkyCiv API. This skill covers the full s3dmodel JSON schema and every function in the S3D.model, S3D.results, S3D.file, and S3D.SB namespaces, plus the S3D.design member/RC design checks.
Skill Claude CodeCodex
Ktor server patterns including routing DSL, plugins, authentication, Koin DI, kotlinx.serialization, WebSockets, and testApplication testing. Use when building a Ktor server — routing, plugins, auth, DI, serialization, or tests.
Skill Claude Code
Talk to the Vandalizer Management API — /api/mgmt/v1. Use when the user says "/vandalizer-api", asks to query the management API, pastes a vklive… key, asks to check Vandalizer dev/prod stats, validation runs, workflows, audit log, or wants to run a workflow/validation/extraction via the management surface.
Skill Claude CodeCodex
Write C#/.NET Sinch Functions with the Sinch.Functions.Runtime NuGet package. Use when writing or editing a function controller: answering and controlling calls with Voice API v2, IVR menus, placing, bridging or transferring calls, realtime AI voice agents, SMS/WhatsApp/RCS webhooks, custom HTTP endpoints, dependency…
Skill Claude CodeCodex
FastAPI Best Architecture (fba) project development guide. Use when working in fba projects to design, implement, review, or document APIs, Schema, Service, CRUD, Model, configuration, response contracts, pagination, cache, Celery, i18n, coding style, plugin development, plugin README files, plugin sharing, plugin…
Skill Claude CodeCodex
Use this skill when the user is building against Anthropic APIs or SDKs, including @anthropic-ai/sdk, anthropic, or Agent SDK integrations.
umarey/BML-Connect-Claude-Code-skill
Skill Claude CodeCodex
BML Connect (Bank of Maldives) payment API integration guide. Use this skill whenever the user mentions BML Connect, Bank of Maldives payments, MVR transactions, MobilePay integration, Maldivian payment processing, laari currency, or wants to accept payments in the Maldives. Also trigger when you see BML API keys…
Skill Claude Code
Database of real user use cases for APIbase platform. Contains detailed examples of how specific APIs are onboarded, wrapped, and served to AI agents. Use this skill when you need to reference real integration examples, explain the APIbase onboarding process, or design new API wrappers based on proven patterns.
Babatunde-Fatai/ai-agent-skills-library
Skill Claude CodeCodex
Implement Flutterwave payment processing for African markets (34+ countries). Use when integrating one-time payments (card, bank transfer, USSD, mobile money), subscriptions/recurring billing, or webhook handling. Covers Next.js and Express implementations with TypeScript. Triggers: payment integration, Flutterwave…
Skill Codex
Build or modify Django and Django REST Framework applications using the user's preferred service-oriented structure. Use when working on Django settings, Pydantic environment validation, PostgreSQL, DRF APIs without viewsets, serializers, services, schemas, constants, media/static storage, Docker, tests, migrations…
Skill Claude CodeCodex
Design, build, debug, and operate n8n automations. Use when working with n8n workflows (JSON), nodes, expressions, triggers/webhooks, executions, credentials, or when calling the n8n public REST API to list/create/update/activate workflows and inspect executions.
Skill Claude CodeCodex
Guides manual dependency injection wiring for Go services: three-tier naming taxonomy (Provide/MustProvide/Must), Must-pattern entrypoints, OS-signal-driven context lifecycle, common provider structs, infrastructure must-builders, interface-segregated bus registration, decorator/tracing wrappers, and…
Skill Claude CodeCodex
Apply this skill whenever writing, reviewing, or refactoring Laravel PHP code. This includes creating or modifying controllers, models, migrations, form requests, policies, jobs, scheduled commands, service classes, and Eloquent queries. Triggers for N+1 and query performance issues, caching strategies, authorization…
phanbaohuy96/flutter_base_structure
Skill Claude CodeCodex
Builds the data layer with Freezed DTOs, Retrofit clients, the storage-seam local data manager, and repositories wired through injectable.
jesus-seijas-sp/claude-node-setup
Skill Claude Code
Guides AI agents to use Pino logging correctly — levels, structured logs, child loggers, and Fastify integration.
Skill Codex
Use when planning, implementing, auditing, reviewing, or closing a PAW TP final migration to REST API plus SPA/frontend, especially when the user says TP final, final delivery, pass the app to final, replace MVC/JSP with API+SPA, add Jersey/JAX-RS resources, stateless auth, frontend build…
Skill Claude CodeCodex
Author, validate, test, deploy, inspect, roll out, and troubleshoot declarative services on Orion using orion-server and orion-cli. Use for Orion workflows, channels, connectors, packages, traces, or runtime operations; do not use for unrelated products also named Orion.
MacareuxDigital/concretecms-skills
Skill Claude CodeCodex
This skill provides instructions and best practices for implementing a CRUD (Create, Read, Update, Delete) interface for Doctrine entities within the Concrete CMS Dashboard, following standard core patterns.
yultyyev/better-auth-firestore
Skill Claude CodeCodex
Use Firestore as the database adapter for Better Auth (Firebase Admin SDK). Use when storing Better Auth users, sessions, accounts, and verification tokens in Firestore, migrating from Auth.js/NextAuth Firebase adapter to Better Auth, setting up Better Auth with a Firebase/Firestore backend, upgrading a…
Skill Claude CodeCodex
Control and query Home Assistant through the connector's callservice tool — REST API patterns, common domains, how to find entities before acting.
DemboNauta/skill-doc-generator
Skill Claude CodeCodex
Modern, powerful structured logging for Python using structlog. Use when adding or improving logging in Python projects, configuring structlog for dev/production, working with contextvars for request-scoped logging, integrating structlog with stdlib logging, or writing tests for logging behavior.
Skill Claude CodeCodex
Create and manage Skynet game server projects. Use this skill when working with the Skynet framework, including creating new game projects, generating services, managing protocols, database integration with MySQL/Redis/MongoDB, and service debugging.
Skill Claude CodeCodex
Use this skill when designing database schemas, optimizing SQL queries, scaling database infrastructure, implementing search features, or working with database-specific capabilities (PostgreSQL or MySQL). This is the definitive reference for database engineering in Laravel 13 applications.
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: