Backend and APIs

19,654 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.

zhimaAi/ChatClaw

Cursor rule Cursor

A set of Cursor rules for organising Go and Wails backend code, including directory responsibilities and constraints for built-in providers and models.

not rated 311 5mo ago A 14 tokens GPL-3.0

flvx-api

195

Sagit-chu/flvx

Skill Claude CodeCodex

Operate FLVX traffic forwarding management system via REST API. Supports user/node/tunnel/forward management, federation clustering, and traffic monitoring. Use when user wants to manage FLVX panel programmatically or via natural language.

not rated 304 +5 5d ago B 47 tokens GPL-3.0

kui-framework

196

abersheeran/kui

Skill Claude Code

Guide for building web applications with the Kui framework. Use when writing Kui ASGI/WSGI handlers, defining routes, binding parameters, configuring OpenAPI docs, or working with middleware/dependency injection.

not rated 297 11d ago A 44 tokens original Apache-2.0

nestjs-best-practices

197

Kadajett/agent-nestjs-skills

Skill Claude CodeCodex

NestJS best practices and architecture patterns for building production-ready applications. This skill should be used when writing, reviewing, or refactoring NestJS code to ensure proper patterns for modules, dependency injection, security, and performance.

not rated 294 +3 3mo ago A Socket: passSnyk: pass 50 tokens

supabase

198

Lyra-stellAI/BYO-LLM-WIKI

MCP server Claude CodeCodexCursor +2

One of 2 in .mcp.json

Supabase's hosted MCP server: lets the agent manage projects, tables, SQL and migrations. Remote server at mcp.supabase.com.

not rated 276 +4 3mo ago A tokens not measured

sentry-nestjs-sdk

199

getsentry/sentry-for-ai

Skill Claude Code needs its repo

Full Sentry SDK setup for NestJS. Use when asked to "add Sentry to NestJS", "install @sentry/nestjs", "setup Sentry in NestJS", or configure error monitoring, tracing, profiling, logging, metrics, crons, or AI monitoring for NestJS applications. Supports Express and Fastify adapters, GraphQL, microservices…

not rated 275 +3 yesterday A Socket: passSnyk: passSkillSpector: warn 89 tokens original MIT

sdk

200

zapier/sdk

Plugin Claude Code

Bundles 1 skill, 1 agent · 151 tokens together

Agent skills and verified examples for writing Zapier SDK code that works.

not rated 269 13d ago A tokens not measured original MIT

supabase

202

maslennikov-ig/claude-code-orchestrator-kit

MCP server Claude CodeCodexCursor +2

One of 6 in .mcp.json

Lets the agent manage Supabase projects: inspect tables, run SQL, handle migrations and read logs. Runs locally from the @supabase/mcp-server-supabase npm package. Needs 1 environment variable to run.

not rated 266 8mo ago A tokens not measured

sandbox-environment

203

pssah4/vault-operator

Skill Claude CodeCodex

Sandbox API reference, proven patterns, and library recommendations for evaluateexpression.

not rated 263 +1 1mo ago A SkillSpector: pass 17 tokens original Apache-2.0

dataverse

204

microsoft/Dataverse-skills

Plugin Claude Code ✓ vendor

Bundles 10 skills · 709 tokens together

Microsoft Dataverse plugin for coding agents, covering record CRUD, bulk data operations, advanced queries, schema and metadata, administration, security, environment management, and solution lifecycle through MCP, CLI, and SDK workflows.

not rated 254 +4 changed today A tokens not measured original MIT

new-deno-app

205

jackfranklin/dotfiles

Skill Claude Code

Scaffold a new Deno 2 + Hono + Deno KV + Eta + HTMX app with password auth and PWA support. Use when the user wants to create a new personal web app following this stack.

not rated 253 4d ago A SkillSpector: warn 50 tokens original MIT

arc-1

206

arc-mcp/arc-1

Plugin Claude Code

Bundles 24 skills, 8 commands, 1 MCP server · 2,045 tokens together

SAP ABAP development for Claude Code: bundles the ARC-1 MCP server (read/write/search/activate/lint/diagnose ABAP via the ADT REST API) with best-practice skills for RAP services, CDS modelling, ABAP Unit tests, clean-core audits, and UI5 modernization. Read-only by default; opt-in write gates.

not rated 252 +8 changed 2d ago A tokens not measured original MIT

telegram-bot-api

207

vendelieu/telegram-bot

Cursor rule Cursor

API actions, features, and options for Telegram Bot library.

not rated 249 yesterday A 1,114 tokens original Apache-2.0

jeecg-codegen

208

jeecgboot/skills

Skill Claude CodeCodex needs its repo

A JeecgBoot code generator that turns a natural-language request into a CRUD module: code for creating, reading, updating, and deleting records. It produces Java backend code, Vue 3 frontend code, menus, permissions, and database migration SQL.

not rated 246 23d ago A SkillSpector: warn 91 tokens original Apache-2.0

agenticmail

209

agenticmail/agenticmail

Plugin Claude Code

Bundles 3 skills · 64 tokens together

Give every Claude Code agent its own real email address and phone number. Self-hosted, runs entirely on the user's machine. Coordinate work across multiple agents using ordinary email threads.

not rated 246 +2 5d ago A tokens not measured original MIT

webhook-setup

210

seb1n/awesome-ai-agent-skills

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.

not rated 242 +6 2mo ago A SkillSpector: warn 47 tokens original MIT

api-designer

211

anxiong2025/25-Day-Agents-Course-by-Google

Skill Claude Code

A helper for designing REST APIs, which let software exchange data over standard web requests. It focuses on consistent names and common design practices.

not rated 241 10mo ago A 20 tokens

holtwood/awesome-cursorrules-zh

Cursor rule Cursor

A set of coding rules for Kotlin applications built with Spring Boot, a Java-based framework for web services. It covers project layout, naming, Kotlin style, and common design patterns.

not rated 241 +1 18d ago A 0 tokens original MIT

salesforce

213

jdrhyne/agent-skills

Skill Claude CodeCodex

Query and manage Salesforce CRM data via the Salesforce CLI (sf). Run SOQL/SOSL queries, inspect object schemas, create/update/delete records, bulk import/export, execute Apex, deploy metadata, and make raw REST API calls.

not rated 240 2mo ago A SkillSpector: warn 50 tokens original MIT

temporal-developer

215

temporalio/skill-temporal-developer

Skill Claude CodeCodex

Develop, debug, and manage Temporal applications across Python, TypeScript, Go, Java, .NET, PHP, Ruby, and Rust. Use when the user is building workflows, activities, workers, or background job queues with a Temporal SDK, debugging issues like non-determinism errors, stuck workflows, or activity retries, using Temporal…

not rated 236 changed today A 173 tokens original MIT

backend-conventions

216

fpindej/netrock

Skill Claude Code

Backend convention reference (.NET 10 / C# 13). Auto-injected into backend-aware agents - not user-invocable.

not rated 235 4d ago A SkillSpector: pass 27 tokens original MIT

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: