12,488 tagged Backend and APIs, measured the same way as everything else here.
Browse within: agents 125LLM 116skills 111agent 97azure 79agentic-ai 77api 72antigravity 61claude-code-plugin 59sdk 51nextjs 50claude-code-skills 49cli 49ai-coding 47
Skill Claude CodeCodex
API specification linting and security validation using Stoplight's Spectral with support for OpenAPI, AsyncAPI, and Arazzo specifications. Validates API definitions against security best practices, OWASP API Security Top 10, and custom organizational standards. Use when: (1) Validating OpenAPI/AsyncAPI specifications…
Skill Codex
Design or review specx core scope boundaries in Python services. Use when deciding where code belongs across packaged scoped foundation bases, optional local foundation extensions, core/, capabilities, delivery, infrastructure, shared/, and ioc; when adding guardrails or splitting use cases, services, DTOs, schemas…
Skill Codex
Use when creating, reviewing, or fixing OctoBus JavaScript service packages from API docs, request examples, existing implementations, or proto/service manifests. Helps generate npm-compatible service packages with service.json, package.json bin, proto contracts, SDK handlers, config/secret schemas, and tests.
SebastienDegodez/copilot-instructions
Skill Claude CodeCodex
Use when domain logic leaks into API/Infrastructure, project references violate layer boundaries, or you need to decide between CQS (always), CQRS bus (complex domains), and DDD patterns (invariants and events).
Skill Claude CodeCodex
This skill should be used when the user provides a Tushare API document URL and asks to generate a full plugin in this codebase, including extractor, schema, config, query service, and agent/MCP/http usage with testable curl examples.
Skill Claude Code needs its repo
Fix a broken OpenAPI spec in jentic-public-apis with an OpenAPI Overlay, validate it (spectral lint + idempotency check), and contribute it back via a PR to the community catalog. Falls back to applying the same overlay to the local Jentic registry if the user can't wait for maintainer approval, and closes the loop by…
Skill Claude CodeCodex
Set up webhook receivers with signature verification, idempotent event processing, retry handling, and dead letter queues for reliable event-driven integrations. Use when the user requests webhook setup or provides relevant inputs for this workflow.
Skill Claude CodeCodex
Zero-knowledge secrets infrastructure — AI agents manage the complete credential lifecycle without ever seeing values.
Skill Claude CodeCodex
Guidelines for writing and executing Google Apps Script code using ggsrun and finding documentation via workspace-developer. Use when developing or running GAS applications.
leeguooooo/cross-request-master
Skill Claude CodeCodex
A tool for reading and synchronising YApi interface documentation, where YApi is a system that documents software APIs and their request and response data.
Skill Claude CodeCodex
Generate OpenAPI 3.1 specs that follow the Zalando RESTful API Guidelines (kebab-case naming, cursor pagination, RFC 9457 problem+json errors, URL versioning, idempotency), one YAML file per bounded context/domain. Use when authoring, updating, or reviewing an OpenAPI/Swagger specification, or when preparing specs to…
Skill Claude CodeCodex
Manage MCP servers in Nuxt with @nuxtjs/mcp-toolkit — setup, create tools/resources/prompts, organize with handlers, build interactive MCP Apps, add elicitation/logging/sessions, review, and troubleshoot.
Skill Claude CodeCodex
Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK).
Skill Claude CodeCodex
Spiceflow is a super simple, fast, and type-safe API and React Server Components framework for TypeScript. Works on Node.js, Bun, and Cloudflare Workers. ALWAYS load this skill BEFORE writing or editing ANY spiceflow code, including one-line changes: routes, pages, layouts, loaders, server actions, forms…
Skill Claude Code
MANUAL TRIGGER ONLY: invoke only when user types /zeroid. Identity infrastructure for AI agents — register identities, issue tokens, delegate to sub-agents, revoke credentials, and manage credential policies via the Zeroid REST API.
Skill Claude CodeCodex
Django architecture patterns, REST API design with DRF, ORM best practices, caching, signals, middleware, and production-grade Django apps.
Skill Claude CodeCodex
Build and debug Kapso WhatsApp workflows, triggers, functions, and executions.
Skill Claude CodeCodex
Use when working with Payload projects (payload.config.ts, collections, fields, hooks, access control, Payload API). Use when debugging validation errors, security issues, relationship queries, transactions, or hook behavior.
Skill Claude CodeCodex
Add a new storage or service provider to the core package. Use when implementing a new backend for StorageService (e.g., a new database) or a new service provider (e.g., a new LLM backend).
Skill Claude CodeCodex needs its repo
Documents existing Go HTTP APIs with go-swagger3 godoc @ annotations and struct tags, then generates OpenAPI 3 specs. Use when the user asks to document an API, add Swagger/OpenAPI comments, generate oas.json/yml, or mentions go-swagger3.
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…
Skill Claude CodeCodex
Use when building, wiring, reviewing, or debugging MailTime and ostrio:mailer email queues for horizontally scaled Node.js, Bun, or Meteor apps. Trigger on MailTime, MongoQueue, RedisQueue, PostgresQueue, mailTimePreset, JoSk email scheduling, Redis Cluster / KeyDB Cluster / Valkey useHashTags, KeyDB…
Skill Claude CodeCodex
Use when designing or architecting Elixir/Phoenix applications, creating comprehensive project documentation, planning OTP supervision trees, defining domain models with Ash Framework, structuring multi-app projects with path-based dependencies, or preparing handoff documentation for Director/Implementor AI…
Skill Claude CodeCodex
NFE.io Node.js SDK integration expert (package: nfe-io). MUST trigger when: code imports 'nfe-io' or references NfeClient; user mentions NFE.io, NFS-e, NF-e, CT-e, CF-e, CFe-SAT, nota fiscal, nota fiscal eletronica, Brazilian invoice, fiscal document, electronic invoice Brazil, CNPJ lookup, CPF lookup, service…
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: