12,511 tagged Backend and APIs, measured the same way as everything else here.
Browse within: agents 124skills 112LLM 111agent 93azure 80api 79agentic-ai 77claude-code-plugin 60ai-coding-agent 58cli 58antigravity 54sdk 51nextjs 50claude-code-skills 49
Skill Claude CodeCodex
Use when developer is implementing authentication, building login/logout flows, writing JWT validation, adding middleware, creating role-based access control, building permission systems, or asking how to protect routes. Also triggers on keywords: auth, bearer token, JWT, session, middleware, permissions, roles…
quantskills/skill-pandadata-api
Skill Claude CodeCodex
A reference guide for the Pandadata Python SDK, based on bundled Chinese API documentation.
Skill Claude CodeCodex needs its repo
Integrate PocketBase as a Go library using the github.com/castle-x/goutils/pocketbase (gopb) package to build single-binary full-stack applications. Use when building Go applications that need user authentication, embedding PocketBase into Go binary, registering custom API routes, managing default users, serving…
Skill Claude Code
Build and integrate Stream Chat, Video, and Feeds in Flutter apps. Use for Flutter/Dart project work with Stream package setup, auth wiring, and widget blueprints. Supports streamchatflutter (pre-built Chat UI), streamchatfluttercore (custom Chat UI), streamvideoflutter (Video calling and livestreaming), and…
Skill Claude CodeCodex
Use when building or consuming a JSON-RPC 2.0 endpoint with DelphiMVCFramework — publishing a plain Delphi class as remotely callable methods, or calling one from a Delphi client. Triggers on "JSON-RPC", "JSONRPC", "MVCFramework.JSONRPC", "RPC method", "PublishObject", "TMVCJSONRPCController", "TMVCJSONRPCPublisher"…
Skill Claude CodeCodex
Laravel security best practices — authentication, authorization, Eloquent safety, CSRF, XSS prevention, API security, and secure deployment configurations.
PolarCoding85/convex-agent-skillz
Skill Claude Code
Build AI agents with persistent threads, tool calling, and streaming on Convex. Use when implementing chat interfaces, AI assistants, multi-agent workflows, RAG systems, or any LLM-powered features with message history.
Skill Claude CodeCodex
Use esta skill para implementar, revisar, depurar, testar, migrar ou explicar integrações com a plataforma de desenvolvedores do Banco Inter Empresas, incluindo OAuth 2.0 + mTLS, Banking, Pix, Pix Automático, Cobrança Boleto com Pix V3, Webhooks, Sandbox, SDKs, CNAB, Crédito Empresas e Crédito Imobiliário.
Skill Claude CodeCodex
DBOS Java SDK for building reliable, fault-tolerant applications with durable workflows. Use this skill when writing Java or Kotlin code with DBOS, creating workflows and steps, using queues, integrating DBOS with Spring Boot, using DBOSClient from external applications, or building JVM applications that need to be…
Skill Claude CodeCodex
Build, change, diagnose, or verify Laravel API endpoints documented by tsitsishvili/documentator. Use for routes, controllers, closures, FormRequests, inline validation, API Resources, Eloquent models, Spatie Data, Laravel Actions, HTTP QUERY operations, callbacks, webhooks, streaming responses, recorded examples…
Skill Claude CodeCodex
Rails 8.x application architecture, implementation, and review guidance for production codebases. Use when building or reviewing Ruby on Rails 8 features across models, controllers, routes, Hotwire, jobs, APIs, performance, security, and testing. Trigger for requests mentioning Rails 8, Active Record, Active Job…
caiaffa/claude-code-ultimate-engineering-system
Skill Claude CodeCodex
Analyze Node.js services for runtime safety, concurrency correctness, memory health, timeout behavior, shutdown integrity, and production resilience.
kingpanther13/Hubitat-local-MCP-server
Skill Claude CodeCodex
Guide for developing and maintaining the Hubitat MCP Rule Server — a Groovy-based MCP server running natively on Hubitat Elevation hubs, exposing 116 tools (36 on tools/list via category gateway proxy) for device control, virtual device management, room management, rule automation, hub admin, file management…
momen-tech-org/momen-cursor-rules
Skill OpenCode
Instructions and authentication code for building headless BaaS applications with Momen.app. Use when integrating Momen backend features like GraphQL, actionflows, AI agents, binary assets, and Stripe payments, or when you need developer authentication.
Skill Claude Code
Full API lifecycle management through Postman. Sync OpenAPI specs to collections, generate typed client code, run API tests, create mock servers, publish documentation, audit security against OWASP Top 10, and discover APIs across workspaces. Requires the Postman MCP Server. Use this skill when the user mentions…
Skill Claude Code
Use when adding a new external data source (API, scraper, etc.) to propertycore. Walks through the complete 6-step process with patterns from existing implementations.
aatrey882/servicenow-agent-skills
Skill Claude CodeCodex
Use when working with ServiceNow Fluent DSL (.now.ts files) — generating, reviewing, or explaining metadata definitions for tables, ACLs, business rules, UI pages, client scripts, script includes, flows, service portal widgets, and other ServiceNow metadata types. Covers all 6 column types, all $id-required types, and…
nodnarbnitram/claude-code-extensions
Skill Claude Code
Integrate with Home Assistant REST and WebSocket APIs. Use when making API calls, managing entity states, calling services, subscribing to events, or setting up authentication. Activates on keywords REST API, WebSocket, API endpoint, service call, access token, Bearer token, subscribeevents.
Skill Claude CodeCodex
Design the target structure of software: clear boundaries, typed domain models, and testable flows. Use for substantial design work, hard-to-test code, domain modelling, module organisation, API and endpoint contract design, ports/adapters, functional core / imperative shell, explicit error handling, observability, or…
Skill Claude CodeCodex
Render data into a standalone SVG chart file — bar, line, or pie. Use when the user provides numbers (inline, JSON, or CSV) and asks for a chart, graph, plot, trend, comparison, breakdown, or any visual summary of the data. Produces a self-contained .svg viewable in any browser; no external libraries required.
Skill Claude CodeCodex
Use when developing with NATS messaging, deploying or embedding a NATS server, working with JetStream streams/consumers/KV/object-store, configuring NATS security or clustering, or building microservices on the NATS protocol.
Skill Claude CodeCodex
Use s-gw when working with credentials, private keys, API tokens, SSH identities, browser credentials, or other sensitive data in agentic coding workflows. Prefer typed handles and local approved execution over exposing raw secret values to a model.
Skill Claude Code
WordPress management via REST API — posts, pages, media, taxonomy, ACF fields, schema, guarded publishing (slug-guard, markdown-leak, em-dash, drift), SEO meta (RankMath/Yoast/generic with focus-keyword merge), comments, plugins, users, search, menus, widgets, and settings. Use when the user wants to create, update…
Shoebtamboli/rails_claude_skills
Skill Claude CodeCodex
RESTful API controller patterns for Ruby on Rails. Use when: (1) Building JSON APIs, (2) API versioning, (3) Error handling and status codes, (4) Authentication with tokens/JWT, (5) Rate limiting, (6) CORS configuration, (7) Pagination and filtering, (8) API documentation, (9) Testing API endpoints.
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: