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.

fba

793

fastapi-practices/skills

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…

not rated 11 changed 2d ago A 78 tokens original MIT

providers

794

kubev2v/forklift-console-plugin

Cursor rule Cursor

Provider pages - list, create, details (per-type dispatch), tabs, actions, modals.

not rated 11 changed today A 19 tokens original Apache-2.0

rocketmq

795

AI-888/06-Aether

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.

not rated 11 4mo ago A 15 tokens original MIT

sena-ai

796

unlimiting-studio/sena-ai

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.

not rated 11 1mo ago A 60 tokens

general

799

cuongtl1992/unleash-mcp

Cursor rule Cursor needs its repo

You are an expert software engineer and have strong skills with typescript and using Model Context Protocol (MCP) to develop MCP Server. You have strong knowledge Unleash API in https://docs.getunleash.io/reference/api/unleash/unleash-api.

not rated 11 1y ago A 1,503 tokens original MIT

elixir-genius

800

agoodway/.claude

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.

not rated 11 7mo ago A 57 tokens

meta-mcp-proxy

801

nullplatform/meta-mcp-proxy

MCP server Claude CodeCodexCursor +2

A flexible Model Context Protocol (MCP) proxy that enables discovery and execution of tools across multiple MCP servers and JavaScript functions. Enabling to have a reduced context event if you have houndreds of tools. This mcp act as wrapper of other mcp. Runs locally from the @nullplatform/meta-mcp-proxy npm package.

not rated 11 1y ago A tokens not measured

wmill/minecraft-api-mcp

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.

not rated 11 yesterday A 38 tokens

302ai-api-integration

803

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.

not rated 11 4mo ago A 60 tokens original Apache-2.0

omie-mcp

804

mcp-dir/omie-mcp

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…

not rated 11 +1 10d ago A SkillSpector: warn 182 tokens original MIT

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.

not rated 11 7d ago A SkillSpector: warn 42 tokens original Apache-2.0

deepapi

807

attentiondotnet/davidondrej-skills

Skill Claude CodeCodex

Use DeepAPI for scraping and safe email with DEEPAPIAPIBASEURL and DEEPAPIAPIKEY.

not rated 11 2mo ago A 25 tokens original MIT

api-design

808

svngoku/coding-agents-skills

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…

not rated 11 +2 28d ago A 144 tokens original MIT

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…

not rated 11 yesterday A 70 tokens

dst-core

810

get-dst/dst

MCP server Claude CodeCodexCursor +2

dst, the data serve tool — governed data access layer (backend). Runs locally from the dst-core Python package.

not rated 11 +6 2d ago A tokens not measured original Apache-2.0

web

811

securityfortech/hacking-skills

Plugin Claude Code

Bundles 28 skills · 2,564 tokens together

Web application security skills covering recon, authentication, authorization, session management, injection, client-side attacks, and business logic. Distilled from OWASP WSTG, security research, and bug bounty writeups.

not rated 11 5mo ago A tokens not measured

authentication-setup

812

autohandai/community-skills

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.

not rated 11 +1 1mo ago A 44 tokens original Apache-2.0

vandalizer-api

813

ui-insight/vandalizer

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.

not rated 11 today A 84 tokens GPL-3.0

valtown

814

val-town/plugins

Plugin Claude Code

Bundles 11 skills, 1 MCP server · 725 tokens together

Build and deploy on Val Town. Bundles the Val Town MCP server and platform skills (HTTP vals, cron/intervals, SQLite, email, OAuth, React UI, third-party integrations).

not rated 10 today A tokens not measured original MIT

claude-api

815

m0b1u3/NotitleCode

Skill Claude CodeCodex

Use this skill when the user wants to build with the Claude API or Anthropic SDKs.

not rated 10 5mo ago A 0 tokens

claude-api

816

claudehk/claude-code

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.

not rated 10 5mo ago A 0 tokens

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: