12,499 tagged Backend and APIs, measured the same way as everything else here.
Browse within: agents 125skills 115LLM 112agent 89api 81azure 80agentic-ai 78claude-code-plugin 60ai-coding-agent 58cli 58antigravity 54sdk 51nextjs 50claude-code-skills 48
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
A troubleshooting skill for Apache RocketMQ, a messaging system that sends data between applications. It covers failures in sending and receiving messages, message backlogs, connections, and access permissions.
Skill Claude CodeCodex
Use this skill when building or modifying an AI agent with the @sena-ai framework. It covers new-project setup, Slack connectors (HTTP/Socket Mode), writing sena.config.ts (runtime, hooks, schedules), defining custom tools, connecting MCP servers, and operating the CLI.
fanxuankai/cli-anything-harnesses
Skill Claude CodeCodex
CLI harness for CLIProxyAPI proxy server management.
Skill Claude Code
Use when designing or architecting Elixir/Phoenix/LiveView applications, creating comprehensive project documentation, planning OTP supervision trees, defining domain models, structuring multi-app projects with path-based dependencies, or preparing handoff documentation for Director/Implementor AI collaboration.
Skill Codex
Use this skill when an LLM client needs to inspect or modify this Minecraft server through the repo's HTTP API and bundled helper scripts, without relying on MCP tools.
302ai/302AI-API-Integration-Skill
Skill Claude CodeCodex
ALWAYS use this skill when user needs ANY API functionality (AI models, image generation, video, audio, text processing, etc.). Automatically search 302.AI's 1400+ APIs and generate integration code. Use proactively whenever APIs or AI capabilities are mentioned.
Skill Claude CodeCodex
Skill da REST API do Omie na MCP.AI: 44 endpoints em /api/omie. Gestão financeira e contábil na Omie (líder de ERP em nuvem no Brasil), contas a pagar/receber, movimentos financeiros, conciliação, contas correntes, clientes/fornecedores e NF-e, via API oficial JSON (app.omie.com.br). Lê e também lança e edita contas a…
freestylefly/fullstack-website-builder-skill
Skill Claude CodeCodex needs its repo
A tool that creates and manages a complete website project from a short description, including its visible pages, server API, database design, and deployment settings.
Skill Claude Code
Benchling Python SDK and REST API integration for registry entities, inventory, ELN entries, workflows, Benchling Apps, and Data Warehouse queries. Use when automating lab data with benchling-sdk or the v2 API.
SAP/automation-pilot-agent-skills
Skill Claude Code ✓ vendor
Manage SAP Automation Pilot content (commands, catalogs, inputs) via Content API. Use when importing or exporting commands, listing catalogs, or managing automation content programmatically.
attentiondotnet/davidondrej-skills
Skill Claude CodeCodex
Use DeepAPI for scraping and safe email with DEEPAPIAPIBASEURL and DEEPAPIAPIKEY.
Skill Claude CodeCodex
Design and review intuitive, scalable, maintainable HTTP APIs. Use this skill whenever the user wants to design a new REST API, review an existing API or spec, write OpenAPI 3.x definitions, or work with HTTP semantics (GET/POST/PUT/PATCH/DELETE), status codes, idempotency (Idempotency-Key), error envelopes (RFC 7807…
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
Design and implement authentication and authorization systems. Use when setting up user login, JWT tokens, OAuth, session management, or role-based access control. Handles password security, token management, SSO integration.
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
Use this skill when the user wants to build with the Claude API or Anthropic SDKs.
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 CodeCodex
A testing and quality-checking toolkit for running an application, finding bugs, and creating automated tests. It supports API tests and browser-based UI tests in Python or Java.
Skill Claude CodeCodex
Interact with ServiceNow instances via the jsn CLI. Use when working with ServiceNow development, administration, or data exploration. Handles tables, records, business rules, flows, script includes, ACLs, update sets, and more. Triggered by ServiceNow URLs (service-now.com, servicenow.com) or when the user mentions…
Skill Codex needs its repo
Use when: user wants to select architecture patterns, compile a spec, iterate on constraints/NFRs, audit why patterns were selected/rejected, or finalise an architecture for implementation. Not when: no repeatable decisions needed, or constraints/NFRs are not yet known (gather those first).
Skill Claude CodeCodex
MANDATORY skill for Appian MCP tool usage. Provides critical domain knowledge (naming conventions, relationship rules, data modeling patterns, dependency order, UUID handling) that MCP tool schemas cannot express. Load this skill BEFORE calling any Appian MCP tools. Covers: record types, interfaces, expression rules…
Skill Claude Code
A local MCP server for creating diagrams with the GenAI DrawIO Creator package. MCP is a way for an agent to call an external tool or 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: